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chuck56
sage
Reged: 01/21/07
Posts: 222
Loc: Chicago, Illinois
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One of these days I'm going to see this (6822). I've been in pretty good skies with my Orion XT10i but still couldn't see it. Should I use very very low power or max? Any help!
Seeing this would make my night!
Chuck
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David Knisely
Postmaster
Reged: 04/19/04
Posts: 8280
Loc: Beatrice, Nebraska
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Quote:
One of these days I'm going to see this (6822). I've been in pretty good skies with my Orion XT10i but still couldn't see it. Should I use very very low power or max? Any help!
Seeing this would make my night!
Chuck
Use low to moderate power (45x to 80x) at a truly dark sky site when it is closest to the meridian. I have seen the galaxy in a pair of 10x50 binoculars and in my 100mm f/6 refractor, although it is a good deal easier in my 9.25 inch SCT. Good luck and clear skies to you.
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David W. Knisely
Hyde Memorial Observatory
http://www.hydeobservatory.info
Prairie Astronomy Club
http://www.prairieastronomyclub.org
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JakeSaloranta
sage
Reged: 09/18/08
Posts: 234
Loc: Sisu, Sauna, Sibelius...
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Quote:
Should I use very very low power or max? Any help!
Low power of course. If you have good enough skies you should see it.
/Jake
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Lard Greystoke
sage
Reged: 07/27/08
Posts: 377
Loc: Ohio
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It's very subtle. Depending on your experience with faint objects, you may actually have seen it without knowing it. Dark skies are probably more important than equipment; as the background glow increases, it reaches the point where it washes out the faint contrast between 6822 and the sky.
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Lard Greystoke
10" Odyssey Compact
"With Tantor, the elephant, he made friends. How? Ask me not."
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Achernar
Postmaster
Reged: 02/25/06
Posts: 5025
Loc: Mobile, Alabama, USA
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This galaxy is like many dwarf irregular and elliptical galaxies a veritable phantom. It's very large apparent size means individual parts of it are very dim and that makes it barely brighter than the surrounding sky. Use low powers for this wraith of a galaxy, and look for it when it's as high as possible above the horizon. It will appear as a large, elongated fuzzy patch of light even in a small telescope when skies are clear and dark enough. That means if the moon is up, forget about looking for it, it'll be drowned out.
Taras
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15-inch F/4.5 Dob under construction
10-inch F/4.5 Discovery Dob
6-inch F/8 Homebuilt Dob
4 1/4-inch F/4 Homebuilt reflector
A whole bunch of eyepieces, filters and other accessories....
Two curious cats
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Tony Flanders
Post Laureate
Reged: 05/18/06
Posts: 3469
Loc: Cambridge, MA, USA
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I agree with David and Jaako -- use low to medium-low magnification for this galaxy. Nine times out of ten I use high power to tease out ultrafaint galaxies, but this is one of the exceptions that proves the rule.
NGC 6822 is quite large, and more to the point, it's utterly devoid of sharp edges to grab hold of. That makes it different from the great majority of galaxies that most amateurs view. Even ones often considered faint, such as M101 or M33, do have well-defined cores and emission areas. NGC 6822 isn't like that at all; it just sort of fades in and then fades out again.
Given all of that, you want NGC 6822 to appear pretty small within the FOV, else you'll never perceive it at all.
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Tony Flanders
First and foremost observing love: naked eye.
Second, binoculars.
Last but not least, telescopes.
And I sometimes dabble with cameras.
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Frank
member
Reged: 01/18/09
Posts: 56
Loc: Netherlands
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Difficult one. I've seen it a few times in my C6 under dark skies, but in light poluted areas, I've no chance at all, even with my C14 at lowest power (XW40, magnifying 96*).
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Celestron CGE1400 XLT
C6 XLT
Vixen 6" F5.0 Newton
WO Zenithstar 80 FD
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