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Observing >> Deep Sky Observing

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nytecam
Postmaster


Reged: 08/20/05

Loc: London UK
Re: Has anyone seen Stephen's Quintet? new [Re: Bill Barlow]
      #6152130 - 10/22/13 06:00 PM

Thanks Bill - much appreciate

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kt4hx
super member
*****

Reged: 01/21/09

Loc: Fredericksburg, Va
Re: Has anyone seen Stephen's Quintet? new [Re: Bill Barlow]
      #6153069 - 10/23/13 07:21 AM

Steve, I echo Buddy's appreciation for the article. Having just seen the Quintet for the first time last month, the sketches in particular put it in perspective for me. I also wanted to thank you for the observing notes you post on the SAC website, as they have been very useful for me in the field.

Edited by kt4hx (10/23/13 07:23 AM)


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kt4hx
super member
*****

Reged: 01/21/09

Loc: Fredericksburg, Va
Re: Has anyone seen Stephen's Quintet? new [Re: kt4hx]
      #6153071 - 10/23/13 07:25 AM

Nytecam, I will add my thanks to Bill's for the images. Like Steve's sketches, your images reinforced what I saw in the eyepiece last month - with the notable exception I could not split 7318 A&B.

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stevecoe
"Astronomical Tourist"
*****

Reged: 04/24/04

Loc: Arizona, USA
Re: Has anyone seen Stephen's Quintet? new [Re: kt4hx]
      #6153953 - 10/23/13 03:43 PM

Alan;

Seeing some detail within the spirals and splitting the tight pair is the reason I was at fairly high power. It also darkening the background for better contrast, if the night will take it.

Thank you for the kind words, I am enjoying the new format of "What's Up" and doing what is seen within one field of view for each article.

Clear skies to us all;
Steve Coe


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saemark30
Pooh-Bah


Reged: 02/21/12

Re: Has anyone seen Stephen's Quintet? new [Re: hokkaido53]
      #6175551 - 11/04/13 02:07 PM

So it must be visible in a 6" f/8 achromat.
Anyone try? What conditions are needed?


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saemark30
Pooh-Bah


Reged: 02/21/12

Re: Has anyone seen Stephen's Quintet? new [Re: saemark30]
      #6179853 - 11/06/13 07:14 PM

It's spelt Stephan's Quintet from my research.

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Bill Weir
Carpal Tunnel
*****

Reged: 06/01/04

Loc: Metchosin (Victoria), Canada
Re: Has anyone seen Stephen's Quintet? new [Re: saemark30]
      #6180119 - 11/06/13 10:32 PM

Quote:

So it must be visible in a 6" f/8 achromat.
Anyone try? What conditions are needed?




I've seen this galaxy cluster with my 6" dob but it wasn't much. The sky was fairly transparent and the SQM reading was 21.13. Wasn't much to write home about and if I didn't know what to look for and exactly where to look it could easily have been missed.

From a much better site at 6000' with a SQM reading of 21.65 and the Milky way blazing I could just detect a fait glow in the appropriate spot with my little ED 80. Again, knowing what and where was important.

Stephan's I've never really had trouble with. As I work my way through the Hickson groups I've found it to be one of the easier ones like HCG 44 in Leo. Again a group readily detectable in a smaller scope. Now HCG 17 that I had a fail on the other night with my 20" was a tough nut to swallow. I'm chalking it up to the poor sky conditions. Yeh that's it, poor sky conditions.

Bill


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Starman1
Vendor (EyepiecesEtc.com)
*****

Reged: 06/24/03

Loc: Los Angeles
Re: Has anyone seen Stephan's Quintet? new [Re: Bill Weir]
      #6180219 - 11/06/13 11:47 PM

Just a note:
This is named after the French astronomer Édouard Jean-Marie Stephan.
The name is pronounced stuh-fahn' with the final n pronounced like the nasal final n in French, rhyming with the French word "quand" (when).
If you have to Anglicize the name, say stuh-fahn' as if it were German.


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saemark30
Pooh-Bah


Reged: 02/21/12

Re: Has anyone seen Stephan's Quintet? new [Re: Starman1]
      #6181615 - 11/07/13 06:27 PM

There must be some mention in Deep Sky Oberving column in S & T by the late Walter Scott Houston for observing with a 6" achromat.
Maybe Stephen O"Meara has seen it in a 4" Genesis!


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JakeSaloranta
Pooh-Bah


Reged: 09/18/08

Loc: Finlandia
Re: Has anyone seen Stephan's Quintet? new [Re: saemark30]
      #6182120 - 11/08/13 12:48 AM

Sue French reported seeing 3 members with a 105 mm (4.1 inch) telescope @ 203x on her book "Deep-Sky Wonders" (page 268). My own log says "Four, possibly even five members of the Stephan's Quintet visible @ 268x (9') using a 114 mm (4.5") Tal-1 refractor.".

/Jake


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Bill Barlow
Carpal Tunnel
*****

Reged: 12/03/07

Loc: Overland Park KS
Re: Has anyone seen Stephan's Quintet? new [Re: JakeSaloranta]
      #6184497 - 11/09/13 11:21 AM

Jake, you must have really dark and transparent skies to see that many members with a 114mm refractor. I can make out 4 members with my C14 from our astro clubs observing site in a yellow zone.

Bill


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schang
professor emeritus


Reged: 04/24/13

Loc: columbia, sc
Re: Has anyone seen Stephen's Quintet? [Re: Bill Weir]
      #6185484 - 11/09/13 09:27 PM

You are right. This group of galaxy is a tough one, which I have missed in previous two tries. The third try was a charm last night under good seeing condition. Not being familiar with the pattern of the stars surrounding the NGC 7331, and the upside down image orientation of Newtonian, it is very easy to get lost in search of them in a yellow zone sky. I had to memorize the image near the NGC 7331, convert it back to what it would be like in a Newtonian view, and really focused in the right area to find them. In my 10" scope, they are faint. If you do not pay attention to it, it is very easy to miss them as just another faint stars.

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