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Observing >> Deep Sky Observing

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Reged: 08/20/05

Loc: London UK
KOH3-71 in Gem new
      #5653612 - 01/31/13 05:06 AM Attachment (12 downloads)

After recording mag 16 Comet ISON last night [3rd time!] I scanned Megastar for DSOs in the area and came across faint PN KOH3-71 =PNG 184.8+4.4 as recorded below. Probably a longshot but any obs via big scopes Megastar says m[p]18.1 and [almost stellar] 3.1" diam

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scholastic sledgehammer

Reged: 07/22/07

Loc: SF Bay area
Re: KOH3-71 in Gem new [Re: nytecam]
      #5654931 - 01/31/13 07:34 PM

The nearly stellar part of K 3-71 is not a problem as you can always "blink" the planetary to confirm, but the Guide Star Catalogue (version 2.3) gives a V mag of 18.45, which if true is probably a monster dob target only. In any case, congrats on capturing it -- your image is indeed centered on the object

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Reged: 08/20/05

Loc: London UK
Re: KOH3-71 in Gem [Re: sgottlieb]
      #5655535 - 02/01/13 03:32 AM Attachment (3 downloads)

Many thanks Steve for your input - I was hoping you would jump in here - much appeciated When I targetted this object via Megastar I didn't note its size or mag and was initially disappointed that 'nothing was there' until a later check via Sloan DSS. My deeper + enlarged crop below. As you say it's a Monster Dob Object

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