Melotte 111 in Coma Berenice

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John Baars Netherlands
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Melotte 111 in Coma Berenice

#1

Post by John Baars »


The day before yesterday I examined Mel111 in Coma Berenice with 7X50 binoculars. Quite impressive, as the old binoculars from the seventies has a whopping 11 degrees Field of view. ( and stars like "ghosts" at the very edge of course) The whole cluster fit in comfortably.

Yesterday I went out again, this time with my 102 mm F5 Startravel refractor to have a closer look at Mel 111. I took my sketch-bloc under my arm with me.
The sketch is made through a 24mm Panoptic giving 21 X and a Field of view of 3.2 degrees. The four visible double stars in the sketch were examined with 45X though. In order to find the fourth double star you'll have to click the image and enlarge it. The cluster was observed through a zenit mirror.

Enjoy and thanks for watching
Melotte111 final.JPG
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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Makuser United States of America
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Re: Melotte 111 in Coma Berenice

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Post by Makuser »


Hello John. A nice sketch of Melotte 111 as seen through your 102 mm F5 Startravel refractor telescope and I think I can make out the fourth double star in the upper left at about the 10 o'clock position using the click up magnification. Thanks for sharing this fine artwork with us on here John and keep looking up.
Marshall
Sky-Watcher 90mm f/13.8 Maksutov-Cassegrain on motorized Multimount
Orion Astroview 120ST f/5 Refractor on EQ3 mount
Celestron Comet Catcher 140mm f/3.64 Schmidt-Newtonian on alt-az mount
Celestron Omni XLT150R f/5 Refractor on CG4 mount with dual axis drives.
Orion 180mm f/15 Maksutov-Cassegrain on CG5-GT Goto mount.
Orion XT12i 12" f/4.9 Dobsonian Intelliscope.
Kamakura 7x35 Binoculars and Celestron SkyMaster 15x70 Binoculars. ZWO ASI 120MC camera.
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Re: Melotte 111 in Coma Berenice

#3

Post by Lady Fraktor »


Very nice John, two nights and a sketch.
See Far Sticks: Antares Elita 103/1575, AOM FLT 105/1000, Bresser BV 127/1200, Nočný stopár 152/1200, Vyrobené doma 70/700, Stellarvue NHNG DX 80/552, TAL RS100/1000, Vixen SD115s/885
EQ: TAL MT-1, Vixen SXP, AXJ, AXD
Az/Alt: AYO Digi II/ Argo Navis, Stellarvue M2C/ Argo Navis
Tripods: Berlebach Planet (2), Uni 28 Astro, Report 372, TAL factory maple, Vixen ASG-CB90, Vixen AXD-TR102
Diagonals: Astro-Physics, Baader Amici, Baader Herschel, iStar Blue, Stellarvue DX, Takahashi prism, TAL, Vixen flip mirror
Eyepieces: Antares to Zeiss
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Ylem United States of America
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Re: Melotte 111 in Coma Berenice

#4

Post by Ylem »


I love your sketches John!
I'm glad you are enjoying that 102 Startravel, I may pick one up.
Clear Skies,
-Jeff :telescopewink:


Member; ASTRA-NJ



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Re: Melotte 111 in Coma Berenice

#5

Post by messier 111 »


well done , thx .
I LOVE REFRACTORS , :Astronomer1: :sprefac:

REFRACTOR , TS-Optics Doublet SD-APO 125 mm f/7.8 . Lunt 80mm MT Ha Doublet Refractor .

EYEPIECES, Delos , Delite and 26mm Nagler t5 , 2 zoom Svbony 7-21 , Orion Premium Linear BinoViewer .

FILTER , Nebustar 2 tele vue . Apm solar wedge . contrast booster 2 inches .

Mounts , berno mack 3 with telepod , cg-4 motorized , eq6 pro belt drive .

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John Baars Netherlands
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Re: Melotte 111 in Coma Berenice

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Post by John Baars »


Ylem wrote: Wed Apr 19, 2023 6:30 pm I love your sketches John!
I'm glad you are enjoying that 102 Startravel, I may pick one up.
Thanks!!

Nice if you want to pick one up, but if you are used to perfection, this may not be your favorite choice. I had to do some work on it myself to get it to a satisfactory level for me.
In this regard, read:
https://theskysearchers.com/app.php/art ... irst-light
Not all of them are like that, I have read reviews that never mentioned the aberration I came across in my sample. And seen perfect and imperfect testreports. Apparently the long journey affects some specimens and not others.
Most of your Plössls will deal with the F5 light cone.


Once all right it might surprise you how easy you leave other instruments inside your home!
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: Melotte 111 in Coma Berenice

#7

Post by helicon »


Great work with the new scope and a lovely observation and sketch, certainly VROD worthy. Congratulations on winning the award!
-Michael
Refractors: ES AR152 f/6.5 Achromat on Twilight II, Celestron 102mm XLT f/9.8 on Celestron Heavy Duty Alt Az mount, KOWA 90mm spotting scope
Binoculars: Celestron SkyMaster 15x70, Bushnell 10x50
Eyepieces: Various, GSO Superview, 9mm Plossl, Celestron 25mm Plossl
Camera: ZWO ASI 120
Naked Eye: Two Eyeballs
Latitude: 48.7229° N
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Re: Melotte 111 in Coma Berenice

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Post by John Baars »


Thank you for the VROD!
I didn't expect that! :sprefac:
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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Unitron48 United States of America
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Re: Melotte 111 in Coma Berenice

#9

Post by Unitron48 »


Well done sketch, John! And congrats on your VROD!!

Dave
Unitron (60mm, 102mm), Brandon 94
Stellarvue SVX127D
http://www.unitronhistory.com

"Look deep into nature, and then you will understand everything better." Albert Einstein
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Re: Melotte 111 in Coma Berenice

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Post by kt4hx »


Very nicely done John. Your sketch is great and congrats on the well deserved VROD. Mel 111 is a very interesting cluster indeed. At our dark site it is easily naked eye, and during periods of good seeing I can make out some individual stars with the naked eye as well. Plus for DSO folks, there are some dimmer background galaxies mingled among its stars as well.
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)
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John Baars Netherlands
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Re: Melotte 111 in Coma Berenice

#11

Post by John Baars »


Thanks to all for your compliments and congratulations!
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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