15 min with M31

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Kanadalainen
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15 min with M31

#1

Post by Kanadalainen »


June 26, 2020

Very early in the morning (~0230h) I was finishing up with M20, and so decided to capture M31... dawn was approaching and the sky was turning a very deep blue in the northeast, but I managed to get 15 min with M31.

This is such an iconic DSO - so often imaged. One more for the pile.

I will study up on how to improve my skills for imaging this one properly, so as not to overexpose the central portion of the galaxy. Another challenge but I think it shall be worth it.

Mount: Unguided with my HEQ5 balanced east-heavy!! I found this to be great for rounding up my stars.
Camera: 60D
Scope: 70 mm SV with a 0.8 reducer/flattener for f4.9

Frames:Optolong CLS - CCD clip in: 10x90" ISO800
Integration: 0.2 hours
Darks: ~20
Flats: ~20
Bias: ~20


Avg. Moon age: 5.41 days
Avg. Moon phase: 29.58%
Bortle Dark-Sky Scale: 3.00
Temperature: 22.00

RA center: 0h 42' 42"
DEC center: +41° 30' 18"
Pixel scale: 1.950 arcsec/pixel
Orientation: 62.873 degrees
Field radius: 1.573 degrees

Thanks for looking.

Image
Ian

Fracs: Stellarvue 70T f6; SW 120mm Esprit f7; "Mark Mk. II" - 60 mm Tasco f6; C80 frac f 11.4
SCT: C8 Edge f10 or f7 with reducer
Dob: 14.5" homebuilt strut dob (f4.5 ZOC mirror), Nexus II, Moonlite focuser
Mounts - Ioptron Skyguider pro, Astro Physics GTO900
Cameras and lenses - ZWO 2600 mc, 290 mm mini, Canon 60D modded with Rokinon 10mm 2.8; Rokinon 135mm f2

Skysafari 6 Pro, Astro Pixel Processor, Pixinsight - using Mac tablet and ASIair pro to run the AP rig.

"Mothers! It is there!" - Rafael Gonzales-Acuna, 2018.
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Graeme1858 Great Britain
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Re: 15 min with M31

#2

Post by Graeme1858 »


Nicely done Ian.

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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Juno16 United States of America
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Re: 15 min with M31

#3

Post by Juno16 »


Thank you for sharing Ian!

Really nice for such a short integration!

I really like it! This is a beautiful dso’s and your SV fov is perfect! Even better with the FR.

Stars look great too! Nice!
Jim

Scopes: Explore Scientific ED102 APO, Sharpstar 61 EDPH II APO, Samyang 135 F2 (still on the Nikon).
Mount: Skywatcher HEQ5 Pro with Rowan Belt Mod
Stuff: ASI EAF Focus Motor (x2), Orion 50mm Guide Scope, ZWO 30 mm Guide Scope, ASI 220mm min, ASI 120mm mini, Stellarview 0.8 FR/FF, Sharpstar 0.8 FR/FF, Mele Overloock 3C.
Camera/Filters/Software: ASI 533 mc pro, ASI 120mm mini, Orion SSAG, IDAS LPS D-1, Optolong L-Enhance, ZWO UV/IR Cut, N.I.N.A., Green Swamp Server, PHD2, Adobe Photoshop CC, Pixinsight.
Dog and best bud: Jack
Sky: Bortle 6-7
My Astrobin: https://www.astrobin.com/users/Juno16/
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Kanadalainen
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Re: 15 min with M31

#4

Post by Kanadalainen »


Graeme1858 wrote: Tue Jun 30, 2020 10:01 pm Nicely done Ian.

Regards

Graeme
Thanks Graeme,

Much appreciated!
Ian

Fracs: Stellarvue 70T f6; SW 120mm Esprit f7; "Mark Mk. II" - 60 mm Tasco f6; C80 frac f 11.4
SCT: C8 Edge f10 or f7 with reducer
Dob: 14.5" homebuilt strut dob (f4.5 ZOC mirror), Nexus II, Moonlite focuser
Mounts - Ioptron Skyguider pro, Astro Physics GTO900
Cameras and lenses - ZWO 2600 mc, 290 mm mini, Canon 60D modded with Rokinon 10mm 2.8; Rokinon 135mm f2

Skysafari 6 Pro, Astro Pixel Processor, Pixinsight - using Mac tablet and ASIair pro to run the AP rig.

"Mothers! It is there!" - Rafael Gonzales-Acuna, 2018.
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Re: 15 min with M31

#5

Post by Kanadalainen »


Juno16 wrote: Tue Jun 30, 2020 10:59 pm Thank you for sharing Ian!

Really nice for such a short integration!

I really like it! This is a beautiful dso’s and your SV fov is perfect! Even better with the FR.

Stars look great too! Nice!

Thanks Jim! This is a relatively huge DSO and yes it doesn't need much cropping, ha ha. I would really like to gather much more time on this one... to bring out colours and detail. Hopefully soon, right after I get M8 and M20 in the same frame. :x
Ian

Fracs: Stellarvue 70T f6; SW 120mm Esprit f7; "Mark Mk. II" - 60 mm Tasco f6; C80 frac f 11.4
SCT: C8 Edge f10 or f7 with reducer
Dob: 14.5" homebuilt strut dob (f4.5 ZOC mirror), Nexus II, Moonlite focuser
Mounts - Ioptron Skyguider pro, Astro Physics GTO900
Cameras and lenses - ZWO 2600 mc, 290 mm mini, Canon 60D modded with Rokinon 10mm 2.8; Rokinon 135mm f2

Skysafari 6 Pro, Astro Pixel Processor, Pixinsight - using Mac tablet and ASIair pro to run the AP rig.

"Mothers! It is there!" - Rafael Gonzales-Acuna, 2018.
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Re: 15 min with M31

#6

Post by Valen »


Pretty sweet.
Scope:Celestron: C8 Owned since 1976, Celestron EdgeHD 14 Mount: CGEM DX, CGX-L, Ioptron CEM120EC
EP: Tele Vue 8mm Delos, Tele Vue Ethos 21mm Tele Vue 2x Barlow, Tele-Vue 2x power mate, Tele-Vue Apollo 11 Commemorative, Celestron K12,25,40.
Camera:Canon EOS 600d Home Dome 10'
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MariusD69 Romania
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Re: 15 min with M31

#7

Post by MariusD69 »


Very nice image! Well done!
Marius
Mount: iOpton Cem60, HEQ5-for spare
Scopes: newt SW 150/750PDS, dobson SW 150/1200; SW 114/500; TS Photoline 80mm f/6 Triplet APO; SW ST80
Cameras: ASI294MC Pro; ASI1600MM Pro; Atik 314L+mono; Canon 1100D; QHY5III-178m; QHY5L-II-m ; ASI224; Altair GPCAM 290M, GPCAM290C
Accessories: Baader MPCC; GPU KomakorrF4; TS Flat2; TS 0.79x FR/FF
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Thefatkitty Canada
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Re: 15 min with M31

#8

Post by Thefatkitty »


Very nice Ian, subtle but great detail! That ST70 is quite the W/F scope!

All the best,
Mark

"The Hankmeister" Celestron 8SE, orange tube Vixen made C80, CG4 & AZ-EQ5 mounts.
Too much Towa glass/mirrors.

H/A - PST stage 2 mod with a Baader 90mm ERF on a Celestron XLT 102 (thanks Mike!)
Ca-K - W/O 61mm, Antares 1.6 barlow, Baader 3.8 OD and Ca-K filters with a ZWO ASI174mm.
W/L - C80-HD with Baader 5.0 & 3.8 Solar film, Solar Continuum 7.5nm and UV/IR filters with a Canon EOS 550D.

Oh yeah, and Solar Cycle 25 :D
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Kanadalainen
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Re: 15 min with M31

#9

Post by Kanadalainen »


Thefatkitty wrote: Wed Jul 01, 2020 8:23 am Very nice Ian, subtle but great detail! That ST70 is quite the W/F scope!

All the best,
Salut Mark, thanks for your kind words! I really like this little scope and recommend it or its slightly bigger brother (the newer 80mm version). I am now collecting the gear I need to use the 60mm Celestron (enter *the* Mark Mk I to the sound of subtle harps strumming), which includes a mini ASI290 camera. :)
Ian

Fracs: Stellarvue 70T f6; SW 120mm Esprit f7; "Mark Mk. II" - 60 mm Tasco f6; C80 frac f 11.4
SCT: C8 Edge f10 or f7 with reducer
Dob: 14.5" homebuilt strut dob (f4.5 ZOC mirror), Nexus II, Moonlite focuser
Mounts - Ioptron Skyguider pro, Astro Physics GTO900
Cameras and lenses - ZWO 2600 mc, 290 mm mini, Canon 60D modded with Rokinon 10mm 2.8; Rokinon 135mm f2

Skysafari 6 Pro, Astro Pixel Processor, Pixinsight - using Mac tablet and ASIair pro to run the AP rig.

"Mothers! It is there!" - Rafael Gonzales-Acuna, 2018.
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Kanadalainen
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Re: 15 min with M31

#10

Post by Kanadalainen »


Valen wrote: Wed Jul 01, 2020 4:43 amPretty sweet.
Thanks Valen!
Ian

Fracs: Stellarvue 70T f6; SW 120mm Esprit f7; "Mark Mk. II" - 60 mm Tasco f6; C80 frac f 11.4
SCT: C8 Edge f10 or f7 with reducer
Dob: 14.5" homebuilt strut dob (f4.5 ZOC mirror), Nexus II, Moonlite focuser
Mounts - Ioptron Skyguider pro, Astro Physics GTO900
Cameras and lenses - ZWO 2600 mc, 290 mm mini, Canon 60D modded with Rokinon 10mm 2.8; Rokinon 135mm f2

Skysafari 6 Pro, Astro Pixel Processor, Pixinsight - using Mac tablet and ASIair pro to run the AP rig.

"Mothers! It is there!" - Rafael Gonzales-Acuna, 2018.
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Kanadalainen
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Re: 15 min with M31

#11

Post by Kanadalainen »


MariusD69 wrote: Wed Jul 01, 2020 5:26 am Very nice image! Well done!
Thanks Marius!
Ian

Fracs: Stellarvue 70T f6; SW 120mm Esprit f7; "Mark Mk. II" - 60 mm Tasco f6; C80 frac f 11.4
SCT: C8 Edge f10 or f7 with reducer
Dob: 14.5" homebuilt strut dob (f4.5 ZOC mirror), Nexus II, Moonlite focuser
Mounts - Ioptron Skyguider pro, Astro Physics GTO900
Cameras and lenses - ZWO 2600 mc, 290 mm mini, Canon 60D modded with Rokinon 10mm 2.8; Rokinon 135mm f2

Skysafari 6 Pro, Astro Pixel Processor, Pixinsight - using Mac tablet and ASIair pro to run the AP rig.

"Mothers! It is there!" - Rafael Gonzales-Acuna, 2018.
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Kanadalainen
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Re: 15 min with M31

#12

Post by Kanadalainen »


Here is another version with some additional processing to crank up the exposure and saturation, with some red removed. Also I tried to rotate the canvas 180*... a friend of mine gave me this advice to try to alter the way one might see the dust lanes. :)

Again, thanks for looking.

Image
Ian

Fracs: Stellarvue 70T f6; SW 120mm Esprit f7; "Mark Mk. II" - 60 mm Tasco f6; C80 frac f 11.4
SCT: C8 Edge f10 or f7 with reducer
Dob: 14.5" homebuilt strut dob (f4.5 ZOC mirror), Nexus II, Moonlite focuser
Mounts - Ioptron Skyguider pro, Astro Physics GTO900
Cameras and lenses - ZWO 2600 mc, 290 mm mini, Canon 60D modded with Rokinon 10mm 2.8; Rokinon 135mm f2

Skysafari 6 Pro, Astro Pixel Processor, Pixinsight - using Mac tablet and ASIair pro to run the AP rig.

"Mothers! It is there!" - Rafael Gonzales-Acuna, 2018.
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