TSS Monthly DSO Challenge – June 2021

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TSS Monthly DSO Challenge – June 2021

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The month of June signifies the beginning of summer in the north and winter in the south. The richness of the Milky Way plane begins to take a more prominent place in the nightly sky, bringing its beauty and treasures to center stage as the northern summer and southern winter progress.

This edition will highlight three interesting and diverse objects from each celestial hemisphere for your consideration. I encourage all to add these to your observing sessions, whether you would be seeing them for the first time or paying them a return visit. As always, posting of your visual reports, sketches and images of these targets are encouraged here in this forum by starting a new thread in the “Submissions” sub-forum. Why not share your TSS Monthly DSO Challenge adventures here so we can all share and discuss your experience. All submissions are truly appreciated. With that, let’s get started for the month of June.


Northern Celestial Hemisphere:

Messier 5 / NGC 5904 (Serpens, globular cluster, mag=5.7, size=23.0’, class=5):
Discovered in 1702 by Gottfried Kirch, it was obviously also observed by Charles Messier (1764). One of the premier globular clusters in the sky, it is one of my personal favorites. Bright and large, it can, under the right conditions, be seen with the naked eye. Even in binoculars and small apertures it can be impressive. It shares similar attributes with the Great Hercules Cluster, M13, with a very similar visual magnitude and angular size, as well as both being a class 5 on the Shapley-Sawyer core concentration classification scale.

Personally I prefer Messier 5 visually, as to my eye it presents subtly better visually. Of course that is purely a personal preference that can be difficult to put into words, and is certainly not shared by everyone. So while M13 is not in this month’s challenge list, I encourage you to look at it as well (and I am sure you will!), and do a comparison between the two to see which you prefer.


NGC 6210 (Hercules, planetary nebula, mag=8.8, size=21.0”, SBr=6.3):
About 4° northeast of magnitude 2.8 Beta Herculis, between the upraised arms of the mythical strongman, is this bright and beautiful planetary nebula. This object has an interesting discovery history. Although it was first observed by Joseph LaLande in 1799, who recorded it in a star catalogue, he did not recognize it as non-stellar. So typically credit for the NGC object is given to Friedrich Wilhelm Struve, who recognized it as a planetary nebula in 1825 while hunting double stars nearby. In fact, be sure to check out the double Struve (Ʃ) 2094 about 17.5’ SSW of the nebula. This pair is pretty even at mag 6.9 and 7.0 with a tight separation of about 1.2”. A third component at magnitude 11.0 lies northwest of this pair at about 25” separation.

It is informally known as the Turtle Nebula because of its appearance in deep images which reveal jets of material flowing out through its outer shell. This planetary is bright and holds up to high magnification, provided seeing permits. The mag 12.6 central star is not strongly present visually, but can be seen with moderate to larger apertures under good seeing conditions. Moderate to larger apertures may also reveal some subtle outer shell detail, indicating a ring-like appearance. It is well known for its beautiful pale blue color, which is not difficult to see because of the object’s high surface brightness. Some observers may see it as more of a greenish-blue, depending upon how their eyes interpret the color they pick up. It also responds well to narrow-band nebula and O-III line filters, which may enhance internal structural detail. Regardless, it is a fine and beautiful object and well worth a visit whether you do visual observation, sketch or image.

Messier 102 / NGC 5866 (Draco, lenticular galaxy, mag=9.9, size=6.5’x3.1’, SBr=12.9):
The famous “Spindle Galaxy” is found just over the border from northeastern Bootes in the large and meandering Draco the dragon. It is known for its history of confusion almost as much as its beauty as an object. After much ado about the identify behind the 102nd entry in Messier’s list of objects, this lenticular is generally accepted as being the correct object, though not without some disagreement still. If Messier’s colleague Pierre Méchain did indeed discover NGC 5866 in 1781, he did so a full seven years before William Herschel, who is given discovery credit in some camps. Of course, since no one who was involved is around to validate these things, we can only try to interpret the notes they left behind to the best of our ability. In the end there will never be 100% agreement on discovery credit.

As indicated by its nickname, it presents a long and thin disk both visually and photographically. Its main details are an intensely bright core area, which in and of itself may appear as a small lens shape within the larger lens shape of the galactic disk. This central brightness is bisected by a thin dark lane that may or may not be seen visually. This depends on conditions, aperture and the observer’s experience. The galaxy extends away from the core, gradually thinning out to narrow tips. Sometimes in heavier light polluted areas where more subtle details can be lost to sky glow, the tips may appear blunter rather than smoothly transitioning to a thin. This object is full of mystery and intrigue, both in its identity and the beauty of its appearance.


Southern Celestial Hemisphere:

NGC 6025 (Triangulum Australe, open cluster, mag=5.1, size=15.0’, class=II2p):
At the northern edge of the southern triangle, snuggled up against the southern border of Norma, one can find this very pretty cluster. Discovered Nicolas-Louis de Lacaille in the 1751-52 timeframe, in his 8x ½ inch telescope he described it as "three faint stars in line in nebulosity." In reality there is no nebulosity associated with this cluster, and Lacaille was merely seeing light scatter from unresolved members.

The cluster field actually crosses into Norma a tiny bit, with the main body of the cluster firmly entrenched in TrA. It presents a split grouping separated by an area of less stellar density. The northern section is the richer of the two sub-groups, while a smaller boxier bunch lies in the southeastern quadrant of the cluster field. It is a curious and beautiful object that stands out well in a generally rich Milky Way field.

Messier 83 / NGC 5236 (Hydra, barred spiral galaxy, mag=7.5, size=12.9’x11.5’, SBr=12.7):
Here is another Nicolas-Louis de Lacaille discovery during his time in South Africa in the 1751-52 timeframe. In his small telescope he saw it as a “small, shapeless nebula.” This object has the distinction of being the only galaxy that Lacaille discovered. It was of course observed by Charles Messier (1781), who added it to his famous list of objects. It was also observed by other pioneers of early observational astronomy, such as William and John Herschel as well as James Dunlop. Its spiral nature was discovered in 1862 by William Lassell using a 48 inch reflector.

Colloquially known as the “Southern Pinwheel Galaxy”, at -29°51'56" declination it is the 8th most southern in Messier’s list, lying just 14.5’ north of the Hydra-Centaurus border. Though visible from the mid-northern latitudes, it is not well placed for the most advantageous observation for us up here. The closer one is to the equator or south of it, the better your views of the beautiful face-on spiral. It presents a large thick oval glow with a very bright concentrated core. When seen from darker locations where it achieves higher elevation one may catch a glimpse its delicate ghostly spiral structure.

NGC 5882 (Lupus, planetary nebula, mag=9.4, size=19.8”, SBr=6.7):

Deep into Lupus the wolf, nearly 1.5° southwest of magnitude 3.4 Epsilon Lupi this planetary presents a small glowing disk positioned within a curving line of four field stars ranging from 6th to 8th magnitude. Discovered by John Herschel in 1834, he described it as "a most elegant and delicate planetary nebula.” It was independently discovered by Williamina Fleming on a plate in 1894, this duplication went unchecked by Dreyer who bestowed the second identifier of IC 1108 upon the object, despite Herschel’s accurate position.

This small disk has been described as greenish to blue by some observers. Its magnitude 13.4 central star may be glimpsed with enough aperture, as may some weak internal structure. For most observers it may simply appear as a grayish rounded disk. Regardless, it stands as another testament to the violent and changing natural forces of our universe.


And there you have it for this month. Good luck in your pursuit and please let us know how you fared. It is through sharing of experiences that we can encourage and teach one another to become better at our craft. Until next time, keep looking up and enjoying the vast beauty of our universe.
Alan

Scopes: Astro Sky 17.5 f/4.5 Dob || Apertura AD12 f/5 Dob || Zhumell Z10 f/4.9 Dob ||
ES AR127 f/6.5 || ES ED80 f/6 || Apertura 6" f/5 Newtonian
Mounts: ES Twilight-II and Twilight-I
EPs: AT 82° 28mm UWA || TV Ethos 100° 21mm and 13mm || Vixen LVW 65° 22mm ||
ES 82° 18mm || Pentax XW 70° 10mm, 7mm and 5mm || barlows
Filters (2 inch): DGM NPB || Orion Ultra Block, O-III and Sky Glow || Baader HaB
Primary Field Atlases: Uranometria All-Sky Edition and Interstellarum Deep Sky Atlas
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"Astronomers, we look into the past to see our future." (me)
"Seeing is in some respect an art, which must be learnt." (William Herschel)
"What we know is a drop, what we don't know is an ocean." (Sir Isaac Newton)
"No good deed goes unpunished." (various)
Some people without brains do an awful lot of talking, don't you think?” (Scarecrow, The Wonderful Wizard of Oz)
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Re: TSS Monthly DSO Challenge – June 2021

#2

Post by Gordon »


Hi Alan!

Nice set of targets for this month. I will try to capture these and post images!
Gordon
Scopes: Explore Scientific ED80CF, Skywatcher 200 Quattro Imaging Newt, SeeStar S50 for EAA.
Mounts: Orion Atlas EQ-g mount & Skywatcher EQ5 Pro.
ZWO mini guider.
Image cameras: ZWO ASI1600 MM Cool, ZWO ASI533mc-Pro, ZWO ASI174mm-C (for use with my Quark chromosphere), ZWO ASI120MC
Filters: LRGB, Ha 7nm, O-III 7nm, S-II 7nm
Eyepieces: a few.
Primary software: Cartes du Ciel, N.I.N.A, StarTools V1.4.

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Re: TSS Monthly DSO Challenge – June 2021

#3

Post by kt4hx »


Gordon wrote: Tue Jun 01, 2021 5:03 pm Hi Alan!

Nice set of targets for this month. I will try to capture these and post images!
Thanks Gordon and looking forward to your submissions.
Alan

Scopes: Astro Sky 17.5 f/4.5 Dob || Apertura AD12 f/5 Dob || Zhumell Z10 f/4.9 Dob ||
ES AR127 f/6.5 || ES ED80 f/6 || Apertura 6" f/5 Newtonian
Mounts: ES Twilight-II and Twilight-I
EPs: AT 82° 28mm UWA || TV Ethos 100° 21mm and 13mm || Vixen LVW 65° 22mm ||
ES 82° 18mm || Pentax XW 70° 10mm, 7mm and 5mm || barlows
Filters (2 inch): DGM NPB || Orion Ultra Block, O-III and Sky Glow || Baader HaB
Primary Field Atlases: Uranometria All-Sky Edition and Interstellarum Deep Sky Atlas
---------------------------------------------------------------------------
"Astronomers, we look into the past to see our future." (me)
"Seeing is in some respect an art, which must be learnt." (William Herschel)
"What we know is a drop, what we don't know is an ocean." (Sir Isaac Newton)
"No good deed goes unpunished." (various)
Some people without brains do an awful lot of talking, don't you think?” (Scarecrow, The Wonderful Wizard of Oz)
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Re: TSS Monthly DSO Challenge – June 2021

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Post by John Baars »


What a coincidence! I just observed two of those challenges a few days ago, and made an illustration of them.

STF 2094:
SAO 84572  in 150 mm V300X.jpg
SAO 84572 in 150 mm V300X.jpg (6.52 KiB) Viewed 11535 times
Since separation is not very wide, seeing must be rather good. I once observed it with a 4 inch refractor too, but on an average night the 4 inch could barely separate them. Lager aperture is recommended. High magnifications too.

NGC6210:
NGC 6210 Planetary in Hercules.jpg
Rather bright planetary nebula. 6 inch refractor shows some details but not much. Truly a nice one for bigger telescopes at high magnification.
Refractors in frequency of use : *SW Evostar 120ED F/7.5 (all round ), * Vixen 102ED F/9 (vintage), both on Vixen GPDX.
GrabnGo on Alt/AZ : *SW Startravel 102 F/5 refractor( widefield, Sun, push-to), *OMC140 Maksutov F/14.3 ( planets).
Most used Eyepieces: *Panoptic 24, *Morpheus 14, *Leica ASPH zoom, *Zeiss barlow, *Pentax XO5.
Commonly used bino's : *Jena 10X50 , * Canon 10X30 IS, *Swarovski Habicht 7X42, * Celestron 15X70, *Kasai 2.3X40
Rijswijk Public Observatory: * Astro-Physics Starfire 130 f/8, * 6 inch Newton, * C9.25, * Meade 14 inch LX600 ACF, *Lunt.
Amateur astronomer since 1970.
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Re: TSS Monthly DSO Challenge – June 2021

#5

Post by kt4hx »


John Baars wrote: Tue Jun 01, 2021 8:03 pm What a coincidence! I just observed two of those challenges a few days ago, and made an illustration of them.

STF 2094:
Image

Since separation is not very wide, seeing must be rather good. I once observed it with a 4 inch refractor too, but on an average night the 4 inch could barely separate them. Lager aperture is recommended. High magnifications too.

NGC6210:
Image

Rather bright planetary nebula. 6 inch refractor shows some details but not much. Truly a nice one for bigger telescopes at high magnification.
Thank you John. I guess great minds think alike! :lol: I saw those in your formal observing report and appreciate you posting them here as well. Fine sketches and nice observations.
Alan

Scopes: Astro Sky 17.5 f/4.5 Dob || Apertura AD12 f/5 Dob || Zhumell Z10 f/4.9 Dob ||
ES AR127 f/6.5 || ES ED80 f/6 || Apertura 6" f/5 Newtonian
Mounts: ES Twilight-II and Twilight-I
EPs: AT 82° 28mm UWA || TV Ethos 100° 21mm and 13mm || Vixen LVW 65° 22mm ||
ES 82° 18mm || Pentax XW 70° 10mm, 7mm and 5mm || barlows
Filters (2 inch): DGM NPB || Orion Ultra Block, O-III and Sky Glow || Baader HaB
Primary Field Atlases: Uranometria All-Sky Edition and Interstellarum Deep Sky Atlas
---------------------------------------------------------------------------
"Astronomers, we look into the past to see our future." (me)
"Seeing is in some respect an art, which must be learnt." (William Herschel)
"What we know is a drop, what we don't know is an ocean." (Sir Isaac Newton)
"No good deed goes unpunished." (various)
Some people without brains do an awful lot of talking, don't you think?” (Scarecrow, The Wonderful Wizard of Oz)
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Re: TSS Monthly DSO Challenge – June 2021

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Post by John Baars »


kt4hx wrote: Tue Jun 01, 2021 4:48 am (...) In fact, be sure to check out the double Struve (Ʃ) 2094 about 17.5’ SSW of the nebula. This pair is pretty even at mag 6.9 and 7.0 with a tight separation of about 1.2”. A third component at magnitude 11.0 lies northwest of this pair at about 25” separation. (...)
I went for the the third component C as well this evening. Didn't know there was one. After magnifying up to 200X I saw something with averted vision in the field of view. After going to 450X I saw one tiny 11.5 star in the neighborhood of the main system. It was the only Magn. 11.5 star in the field of view as far as I know. Still, distance was not right,it was to far away from the main stars. I'll check again next time. Pity, but it was fun after all.
Refractors in frequency of use : *SW Evostar 120ED F/7.5 (all round ), * Vixen 102ED F/9 (vintage), both on Vixen GPDX.
GrabnGo on Alt/AZ : *SW Startravel 102 F/5 refractor( widefield, Sun, push-to), *OMC140 Maksutov F/14.3 ( planets).
Most used Eyepieces: *Panoptic 24, *Morpheus 14, *Leica ASPH zoom, *Zeiss barlow, *Pentax XO5.
Commonly used bino's : *Jena 10X50 , * Canon 10X30 IS, *Swarovski Habicht 7X42, * Celestron 15X70, *Kasai 2.3X40
Rijswijk Public Observatory: * Astro-Physics Starfire 130 f/8, * 6 inch Newton, * C9.25, * Meade 14 inch LX600 ACF, *Lunt.
Amateur astronomer since 1970.
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Re: TSS Monthly DSO Challenge – June 2021

#7

Post by kt4hx »


Thanks John, and sometimes the simple act of the hunt is rewarding in and of itself. Good luck on your next attempt.
Alan

Scopes: Astro Sky 17.5 f/4.5 Dob || Apertura AD12 f/5 Dob || Zhumell Z10 f/4.9 Dob ||
ES AR127 f/6.5 || ES ED80 f/6 || Apertura 6" f/5 Newtonian
Mounts: ES Twilight-II and Twilight-I
EPs: AT 82° 28mm UWA || TV Ethos 100° 21mm and 13mm || Vixen LVW 65° 22mm ||
ES 82° 18mm || Pentax XW 70° 10mm, 7mm and 5mm || barlows
Filters (2 inch): DGM NPB || Orion Ultra Block, O-III and Sky Glow || Baader HaB
Primary Field Atlases: Uranometria All-Sky Edition and Interstellarum Deep Sky Atlas
---------------------------------------------------------------------------
"Astronomers, we look into the past to see our future." (me)
"Seeing is in some respect an art, which must be learnt." (William Herschel)
"What we know is a drop, what we don't know is an ocean." (Sir Isaac Newton)
"No good deed goes unpunished." (various)
Some people without brains do an awful lot of talking, don't you think?” (Scarecrow, The Wonderful Wizard of Oz)
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Re: TSS Monthly DSO Challenge – June 2021

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Post by John Baars »


kt4hx wrote: Mon Jun 07, 2021 9:48 pm Thanks John, and sometimes the simple act of the hunt is rewarding in and of itself. Good luck on your next attempt.
Thanks, this night I didn't miss him. I knew I had to do it with averted vision. This time I didn't make big circles with my eyes in the field, like I am used to when hunting for faint fuzzies. Just a tiny little circle around the main stars was enough, there it was!
SAO 84572  A-B-C in 150 mm V300X .jpg
SAO 84572 A-B-C in 150 mm V300X .jpg (6.54 KiB) Viewed 11359 times
Refractors in frequency of use : *SW Evostar 120ED F/7.5 (all round ), * Vixen 102ED F/9 (vintage), both on Vixen GPDX.
GrabnGo on Alt/AZ : *SW Startravel 102 F/5 refractor( widefield, Sun, push-to), *OMC140 Maksutov F/14.3 ( planets).
Most used Eyepieces: *Panoptic 24, *Morpheus 14, *Leica ASPH zoom, *Zeiss barlow, *Pentax XO5.
Commonly used bino's : *Jena 10X50 , * Canon 10X30 IS, *Swarovski Habicht 7X42, * Celestron 15X70, *Kasai 2.3X40
Rijswijk Public Observatory: * Astro-Physics Starfire 130 f/8, * 6 inch Newton, * C9.25, * Meade 14 inch LX600 ACF, *Lunt.
Amateur astronomer since 1970.
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Re: TSS Monthly DSO Challenge – June 2021

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Post by kt4hx »


John Baars wrote: Mon Jun 07, 2021 11:20 pm
kt4hx wrote: Mon Jun 07, 2021 9:48 pm Thanks John, and sometimes the simple act of the hunt is rewarding in and of itself. Good luck on your next attempt.
Thanks, this night I didn't miss him. I knew I had to do it with averted vision. This time I didn't make big circles with my eyes in the field, like I am used to when hunting for faint fuzzies. Just a tiny little circle around the main stars was enough, there it was!
Image
Excellent John!
Alan

Scopes: Astro Sky 17.5 f/4.5 Dob || Apertura AD12 f/5 Dob || Zhumell Z10 f/4.9 Dob ||
ES AR127 f/6.5 || ES ED80 f/6 || Apertura 6" f/5 Newtonian
Mounts: ES Twilight-II and Twilight-I
EPs: AT 82° 28mm UWA || TV Ethos 100° 21mm and 13mm || Vixen LVW 65° 22mm ||
ES 82° 18mm || Pentax XW 70° 10mm, 7mm and 5mm || barlows
Filters (2 inch): DGM NPB || Orion Ultra Block, O-III and Sky Glow || Baader HaB
Primary Field Atlases: Uranometria All-Sky Edition and Interstellarum Deep Sky Atlas
---------------------------------------------------------------------------
"Astronomers, we look into the past to see our future." (me)
"Seeing is in some respect an art, which must be learnt." (William Herschel)
"What we know is a drop, what we don't know is an ocean." (Sir Isaac Newton)
"No good deed goes unpunished." (various)
Some people without brains do an awful lot of talking, don't you think?” (Scarecrow, The Wonderful Wizard of Oz)
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Re: TSS Monthly DSO Challenge – June 2021

#10

Post by Gordon »


Finally things came together and I was able to get out and capture the Northern side. This was a fun adventure. I especially like NGC6210. It's small but a great target!!!

First off M5.
M5.png

Then NGC6210
NGC6210.png
And finally M102
M102.png
Gordon
Scopes: Explore Scientific ED80CF, Skywatcher 200 Quattro Imaging Newt, SeeStar S50 for EAA.
Mounts: Orion Atlas EQ-g mount & Skywatcher EQ5 Pro.
ZWO mini guider.
Image cameras: ZWO ASI1600 MM Cool, ZWO ASI533mc-Pro, ZWO ASI174mm-C (for use with my Quark chromosphere), ZWO ASI120MC
Filters: LRGB, Ha 7nm, O-III 7nm, S-II 7nm
Eyepieces: a few.
Primary software: Cartes du Ciel, N.I.N.A, StarTools V1.4.

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Re: TSS Monthly DSO Challenge – June 2021

#11

Post by kt4hx »


Excellent Gordon and thanks for the fine images. Beautiful color in NGC 6210!
Alan

Scopes: Astro Sky 17.5 f/4.5 Dob || Apertura AD12 f/5 Dob || Zhumell Z10 f/4.9 Dob ||
ES AR127 f/6.5 || ES ED80 f/6 || Apertura 6" f/5 Newtonian
Mounts: ES Twilight-II and Twilight-I
EPs: AT 82° 28mm UWA || TV Ethos 100° 21mm and 13mm || Vixen LVW 65° 22mm ||
ES 82° 18mm || Pentax XW 70° 10mm, 7mm and 5mm || barlows
Filters (2 inch): DGM NPB || Orion Ultra Block, O-III and Sky Glow || Baader HaB
Primary Field Atlases: Uranometria All-Sky Edition and Interstellarum Deep Sky Atlas
---------------------------------------------------------------------------
"Astronomers, we look into the past to see our future." (me)
"Seeing is in some respect an art, which must be learnt." (William Herschel)
"What we know is a drop, what we don't know is an ocean." (Sir Isaac Newton)
"No good deed goes unpunished." (various)
Some people without brains do an awful lot of talking, don't you think?” (Scarecrow, The Wonderful Wizard of Oz)
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Re: TSS Monthly DSO Challenge – June 2021

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Post by Dyno05 »


M5 from Westport, Connecticut Saturday, June 11th.
46x105” with a Canon T3i and an ES127 ED.
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Re: TSS Monthly DSO Challenge – June 2021

#13

Post by Graeme1858 »


That's a fine M5 Dyno. I thought it might look good over in this section!

Do you fancy a pop at NGC6210 and M102?

Regards

Graeme
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Re: TSS Monthly DSO Challenge – June 2021

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Post by Dyno05 »


Graeme1858 wrote: Thu Jun 17, 2021 8:26 pm That's a fine M5 Dyno. I thought it might look good over in this section!

Do you fancy a pop at NGC6210 and M102?

Regards

Graeme
Would love to, but I only get a chance to go out maybe once a month, and now we have a Moon and clouds in the forecast.
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Re: TSS Monthly DSO Challenge – June 2021

#15

Post by sdbodin »


Got M5 last night, bright moon, some lingering twilight at 11pm. Didn't want to blow out the core so limited exposures to 1 minute, took 25 of them but tossed 13 because PHD2 didn't want to behave. So, a limited set just a dozen on the OSC cam on the BigDog 16.
m5_16f6zworaw.jpg
Setup; Meade 16 LX200 at f6, 2400mm efl, ASI1600MC-cool, gain 200, offset 50, temp -18C. Guided with 4 inch SCT at 1000mm efl and QHY5L-II mono at 4 sec rate. Just a raw stack, no darks, barks, bias, flat tires either.

Clear skies,
Steve
Scopes; Meade 16 LX200, AT80LE, plus bunch just sitting around gathering dust
Cameras; Atik 460ex mono, Zwo ASI1600MC-cool, QHY5L-II color and mono
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kt4hx United States of America
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Re: TSS Monthly DSO Challenge – June 2021

#16

Post by kt4hx »


Dyno05 wrote: Thu Jun 17, 2021 2:46 pm M5 from Westport, Connecticut Saturday, June 11th.
46x105” with a Canon T3i and an ES127 ED.

Very nice image Dyno and happy Graeme dropped it over here. Hope you will take a look at our challenges in the future and share your results with us.

sdbodin wrote: Thu Jun 17, 2021 9:35 pm Got M5 last night, bright moon, some lingering twilight at 11pm. Didn't want to blow out the core so limited exposures to 1 minute, took 25 of them but tossed 13 because PHD2 didn't want to behave. So, a limited set just a dozen on the OSC cam on the BigDog 16.


Setup; Meade 16 LX200 at f6, 2400mm efl, ASI1600MC-cool, gain 200, offset 50, temp -18C. Guided with 4 inch SCT at 1000mm efl and QHY5L-II mono at 4 sec rate. Just a raw stack, no darks, barks, bias, flat tires either.

Clear skies,
Steve
Wonderful image Steve and very happy to see it here in the challenge forum.
Alan

Scopes: Astro Sky 17.5 f/4.5 Dob || Apertura AD12 f/5 Dob || Zhumell Z10 f/4.9 Dob ||
ES AR127 f/6.5 || ES ED80 f/6 || Apertura 6" f/5 Newtonian
Mounts: ES Twilight-II and Twilight-I
EPs: AT 82° 28mm UWA || TV Ethos 100° 21mm and 13mm || Vixen LVW 65° 22mm ||
ES 82° 18mm || Pentax XW 70° 10mm, 7mm and 5mm || barlows
Filters (2 inch): DGM NPB || Orion Ultra Block, O-III and Sky Glow || Baader HaB
Primary Field Atlases: Uranometria All-Sky Edition and Interstellarum Deep Sky Atlas
---------------------------------------------------------------------------
"Astronomers, we look into the past to see our future." (me)
"Seeing is in some respect an art, which must be learnt." (William Herschel)
"What we know is a drop, what we don't know is an ocean." (Sir Isaac Newton)
"No good deed goes unpunished." (various)
Some people without brains do an awful lot of talking, don't you think?” (Scarecrow, The Wonderful Wizard of Oz)
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Re: TSS Monthly DSO Challenge – June 2021

#17

Post by BABOafrica »


I've been out of action for a long time for various reasons.

It's a bit late in the month. But I finally managed something.

M5

C8 SCT on EQ-G with Fuji X-A1 (modded / iso6400) using UHC filter // Bortle 8 skies

60x15s & 20x120s

M5 8JUN21 60x15s 20x120s F1m-64-U C8-G sec.jpg

BABO
"In lumine tuo videbimus lumen."

Scopes: Stellarvue SV80 Raptor Carbon Fiber ED Doublet / Celestron SCT C8
Williams Optics 66mm APO / DIY 8" f/4 Newtonian astrograph / Nikon 180mm f/2.8
Mounts: Orion Atlas EQ-G / Celestron AVX / DIY mini-equatorial
Cameras: QHY163m / Fujifilm X-A1 (modded) / Fuji X-A2 (not modded) / Orion StarShoot Auto Guider
Filters: ZWO 7nm NB set / ZWO LRGB set / ZWO Dual Band / Astronomics UHC
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Graeme1858 Great Britain
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Re: TSS Monthly DSO Challenge – June 2021

#18

Post by Graeme1858 »


BABOafrica wrote: Tue Jun 29, 2021 9:57 am I've been out of action for a long time for various reasons.

Good to see you back Babo.

That's a fine M5.

Regards

Graeme
______________________________________________
Celestron 9.25 f10 SCT, f6.3FR, CGX mount.
ASI1600MM Pro, ASI294MC Pro, ASI224MC
ZWO EFW, ZWO OAG, ASI220MM Mini.
APM 11x70 ED APO Binoculars.

https://www.averywayobservatory.co.uk/
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kt4hx United States of America
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Re: TSS Monthly DSO Challenge – June 2021

#19

Post by kt4hx »


BABOafrica wrote: Tue Jun 29, 2021 9:57 am I've been out of action for a long time for various reasons.

It's a bit late in the month. But I finally managed something.

M5

C8 SCT on EQ-G with Fuji X-A1 (modded / iso6400) using UHC filter // Bortle 8 skies

60x15s & 20x120s


BABO
Very nice indeed Joe. I see many of the details that I capture visually at the dark site with my 17.5 inch. Glad you are able to stop by. I too have been somewhat out of the loop of late for personal reasons and hope you can be more involved over the coming months. We enjoy your more southern view and perspective!
Alan

Scopes: Astro Sky 17.5 f/4.5 Dob || Apertura AD12 f/5 Dob || Zhumell Z10 f/4.9 Dob ||
ES AR127 f/6.5 || ES ED80 f/6 || Apertura 6" f/5 Newtonian
Mounts: ES Twilight-II and Twilight-I
EPs: AT 82° 28mm UWA || TV Ethos 100° 21mm and 13mm || Vixen LVW 65° 22mm ||
ES 82° 18mm || Pentax XW 70° 10mm, 7mm and 5mm || barlows
Filters (2 inch): DGM NPB || Orion Ultra Block, O-III and Sky Glow || Baader HaB
Primary Field Atlases: Uranometria All-Sky Edition and Interstellarum Deep Sky Atlas
---------------------------------------------------------------------------
"Astronomers, we look into the past to see our future." (me)
"Seeing is in some respect an art, which must be learnt." (William Herschel)
"What we know is a drop, what we don't know is an ocean." (Sir Isaac Newton)
"No good deed goes unpunished." (various)
Some people without brains do an awful lot of talking, don't you think?” (Scarecrow, The Wonderful Wizard of Oz)
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