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Steph 1 open cluster

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#1 schmeah

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Posted 12 June 2019 - 10:46 AM

Stephenson 1 is a loose open cluster in Lyra centered around the wide double star Delta Lyrae which consists of Delta 1, the blue main sequence star of spectral type B2.5V and Delta 2, the variable Red Giant. It has been debated whether or not this star is a true binary (probably no) and whether or not this sparse open cluster is a true cluster (probably yes).

 

This was from only 1.5 hours total exposure as I was once again thwarted by the Windows Automatic Update demon which I thought I had disabled. Processed without flats because I didn't have the heart  to take them at daybreak having awakened to a shutdown laptop. Its also my first foray back into short focal length imaging in nearly two years. Couldn't find any interesting short FL targets yet above my horizon by 10 PM. Anybody have any early season unique targets to recommend?

 

Thanks for looking,

 

Derek

 

https://pbase.com/ds...image/169348463

 

Steph1LRGBsmall.jpg


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#2 psandelle

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Posted 12 June 2019 - 11:14 AM

Images of clusters usually suck for me (compared to viewing them through an eyepiece), but when someone hits it just right, they sure are beautiful. Even this loose a cluster...you did it so nicely, the colors so great, it's just plain pretty.

 

Paul


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#3 PeteM

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Posted 12 June 2019 - 12:07 PM

Very well done, I agree with Paul above...done just right to remind me of the view through an eyepiece.


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#4 schmeah

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Posted 12 June 2019 - 02:02 PM

Images of clusters usually suck for me (compared to viewing them through an eyepiece), but when someone hits it just right, they sure are beautiful. Even this loose a cluster...you did it so nicely, the colors so great, it's just plain pretty.

 

Paul

Thanks Paul and Pete. I wish I could take credit for the colors. This little Tak does such a wonderful job with color correction, far better than any of my previous scopes. I rarely do any processing on the star fields other than levels and curves.

 

Derek



#5 psandelle

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Posted 12 June 2019 - 03:31 PM

Thanks Paul and Pete. I wish I could take credit for the colors. This little Tak does such a wonderful job with color correction, far better than any of my previous scopes. I rarely do any processing on the star fields other than levels and curves.

 

Derek

Yes, but YOU bought the Tak so you should get ALL the credit, yes?

 

Paul


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#6 elmiko

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Posted 12 June 2019 - 04:12 PM

Beautiful image Derek! As the others have mentioned, just perfect processing. Not overdone. Beautiful, round stars to the edge.

Mike


Edited by elmiko, 12 June 2019 - 04:13 PM.

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#7 stargzr66207

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Posted 12 June 2019 - 05:08 PM

Derek,
Beautiful image!! Focus, guiding, processing all spot on. I really love the star colors.
Ron Abbott
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#8 schmeah

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Posted 12 June 2019 - 10:35 PM

Thanks Mike and Ron!


Edited by schmeah, 12 June 2019 - 10:35 PM.

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#9 DaveB

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Posted 13 June 2019 - 04:47 PM

Couldn't find any interesting short FL targets yet above my horizon by 10 PM. Anybody have any early season unique targets to recommend?

 

 

Here are a few, with the emphasis being that they aren't often imaged

  • Draco Dwarf Galaxy (UGC 10822) or Ursa Minor Dwarf (UGC 9749) - certainly unique, may not interesting (although you managed to make Steph 1 interesting bow.gif ). It definitely needs a dark sky.
  • NGC 5905/5907/5908 - a nice grouping of galaxies with a variety of shapes. A wide enough field can also include M102; although brighter than the others, it is less interesting visually IMHO.
  • Go deep with Abell 2151
  • IC 1276 is a different sort of globular - it seems somewhere between an OC and a GC

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#10 schmeah

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Posted 13 June 2019 - 08:30 PM

 

Here are a few, with the emphasis being that they aren't often imaged

  • Draco Dwarf Galaxy (UGC 10822) or Ursa Minor Dwarf (UGC 9749) - certainly unique, may not interesting (although you managed to make Steph 1 interesting bow.gif ). It definitely needs a dark sky.
  • NGC 5905/5907/5908 - a nice grouping of galaxies with a variety of shapes. A wide enough field can also include M102; although brighter than the others, it is less interesting visually IMHO.
  • Go deep with Abell 2151
  • IC 1276 is a different sort of globular - it seems somewhere between an OC and a GC

 

**** Dave, I wish that I had queried you about a month ago. These are some great targets. Unfortunately they are all near or just beyond the meridian around 10-11 PM, which would give me at most a few hours, given my horizons. I am so tempted to try Abell 2151 anyway.  IC 1276 is a bit too low in altitude. The only one on your list that I have done is the Draco Dwarf, one of my favorite captures:

https://pbase.com/ds...image/155743715

 

Derek



#11 DaveB

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Posted 13 June 2019 - 11:20 PM

Derek,

 

That's an awesome image of the Draco Dwarf! It is on my to-do list.

 

Since you seem to be into "challenges", how about the planetary nebula IsWe 2, aka PN G107.7+07.8 [RA (J2000.0): 22h 13m 22.7; Dec (J2000.0): +65° 53' 55"]. I didn't see any images of it on Abin, and only one discussion of it online other than in all-sky surveys: http://www.jens-bohle.de/iswe_2.htm

 

Since I am more of a galaxy guy, I can't be much help in terms of larger reflection and emission nebula other than the well work path of Messier objects and similarly well-imaged objects.



#12 schmeah

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Posted 14 June 2019 - 08:44 AM

 

Derek,

 

That's an awesome image of the Draco Dwarf! It is on my to-do list.

 

Since you seem to be into "challenges", how about the planetary nebula IsWe 2, aka PN G107.7+07.8 [RA (J2000.0): 22h 13m 22.7; Dec (J2000.0): +65° 53' 55"]. I didn't see any images of it on Abin, and only one discussion of it online other than in all-sky surveys: http://www.jens-bohle.de/iswe_2.htm

 

Since I am more of a galaxy guy, I can't be much help in terms of larger reflection and emission nebula other than the well work path of Messier objects and similarly well-imaged objects.

IsWe2 seems like an excellent challenging target. I’m also mostly a long FL guy, but recently switched back to my refractor. When I first saw this suggestion, I thought it must be more of an SCT target, and I don’t have the energy to switch back again so soon,  but apparently it’s one of the larger old PNs, 16’ by 14’ so still reasonable for short FL. Also it’s perfectly placed for me at this point. Perhaps a nice bicolor image. 

http://www.reinervog.../LargePN_e.html

 

Regarding the Draco Dwarf, it’s one of the few galaxies too large to fit in my SCT FOV, hence the refractor shot. But perhaps now that I got the FR for my 9.25 Edge I’d like to shoot it again. I wonder if their are individual resolvable stars in it at longer FL?

 

 

Derek


Edited by schmeah, 14 June 2019 - 08:48 AM.


#13 Michael Deger

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Posted 16 June 2019 - 07:09 AM

Hi Derek,

 

very nice open cluster.

 

All the best

Michael

 

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#14 Atik Cameras

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Posted 17 June 2019 - 06:48 AM

The star colors and shapes are fantastic.

 

Vince :)


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#15 jcj380

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Posted 17 June 2019 - 08:57 AM

Nice.  I've been meaning to take a look at this visually.


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#16 schmeah

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Posted 18 June 2019 - 03:32 PM

Thanks Michael, Vince and JCJ.



#17 Jim Thommes

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Posted 23 June 2019 - 09:13 PM

Well done Derek.




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