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AndrewJ
member
Reged: 08/21/09
Posts: 39
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Hallo, I am new to this board.
Which galaxies and clusters outside the Local Supercluster are brightest or most accessible to a Northern Hemisphere observer (53 degrees north)?
I have an 8 inch dobsonian and my club has 11-14 inch 'scopes (although neither my garden nor their observatory has completely dark skies).
I have read a lot about 3C 273 in Virgo and how that might be within 8 inch range. Also, I am wondering if NGC 1275 and the Perseus Cluster might be achievable as Perseus is in a good position for most of the Fall and Winter. Are these fair targets? Would be grateful for any other suggestions.
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AlanK
professor emeritus
Reged: 01/26/07
Posts: 512
Loc: Auckland, New Zealand
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Hi Andrew and welcome to Cloudy Nights!
There are a number of galaxy clusters you can try such as the Pegasus I cluster (centered on NGC 7619) as well as the Pisces cluster (NGC 507 brightest) and AGC 262 (NGC 708 brightest) and AGC 347.
In your 8 inch under those conditions most will appear very small and faint but are worth going for on a good night.
With the Perseus cluster, NGC 1275 should be detectable with a moderate to high power and if you are lucky a few more very faint galaxies will be visible. (I picked out about a dozen with my old 10 inch).
3C 273 should be fairly easy at 13th mag - you just need a finder chart to identify the right 'star'. Can post one if you like.
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Clear skies!
18 inch f4.5 Obsession #1637
12 inch f5.4 reflector
Just another frozen astronomer
Kumeu Observatory
Auckland NZ
7,276 deep sky objects incl 4,670 ngcs
Who dares - observes!
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AndrewJ
member
Reged: 08/21/09
Posts: 39
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Thanks for the encouraging suggestions, Alan. Pegasus I seems particularly promising: 2 mag 11.5 galaxies and an obvious star pattern nearby. I read on Atlas of the Universe that the Pegasus clusters constitute their own small supercluster separate from the Pisces-Perseus supercluster.
I would be grateful to see a finder map for 3C 273 if you (or anyone) had one handy, but no rush, it will be a few months before Virgo is visible at my lattitude at a reasonable hour.
Is Pegasus ever visible from NZ?
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David Knisely
Postmaster
Reged: 04/19/04
Posts: 8280
Loc: Beatrice, Nebraska
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Quote:
Thanks for the encouraging suggestions, Alan. Pegasus I seems particularly promising: 2 mag 11.5 galaxies and an obvious star pattern nearby. I read on Atlas of the Universe that the Pegasus clusters constitute their own small supercluster separate from the Pisces-Perseus supercluster.
I would be grateful to see a finder map for 3C 273 if you (or anyone) had one handy, but no rush, it will be a few months before Virgo is visible at my lattitude at a reasonable hour.
Is Pegasus ever visible from NZ?
Here is an DSS image of 3C-273 processed to exclude really faint stars and yield a field of about one degree wide by 0.75 degree high centered on 3C-273. The faintest star shown is around 15th magnitude or so. 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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AlanK
professor emeritus
Reged: 01/26/07
Posts: 512
Loc: Auckland, New Zealand
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You're welcome. All of Pegasus is still visible although upside down compared to the way you see it. On a very clear night M31 can be seen as a fuzz very low in the north. Observationwise for faint stuff, anything below Dec +30N is fine at my location.
--------------------
Clear skies!
18 inch f4.5 Obsession #1637
12 inch f5.4 reflector
Just another frozen astronomer
Kumeu Observatory
Auckland NZ
7,276 deep sky objects incl 4,670 ngcs
Who dares - observes!
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nytecam
Postmaster
Reged: 08/20/05
Posts: 5753
Loc: London UK
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Welcome to CNQuote:
I would be grateful to see a finder map for 3C 273 if you (or anyone) had one handy..
Try my quasar homepage via my 70mm Meade for wide/ scaled/ orientated fov 
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Nytecam 51N 0.1W
Meade 30cm LX200+ETX-70+e-finder+C8+Ha+CaK PSTs SBIG SGS+homebuilt spectrographs
Starlight SXVF_M9+Lodestar CCDs/Canon 300D DSLR/Fuji E550
My observatory build-ETX-70 imaging-my videos
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AndrewJ
member
Reged: 08/21/09
Posts: 39
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David and nytecam, thanks for the maps.
Quote:
All of Pegasus is still visible although upside down compared to the way you see it. On a very clear night M31 can be seen as a fuzz very low in the north.
So you can see M31, the LMC, SMC and presumably a high NGC 253? The southern hemisphere sounds great for galaxies.
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AlanK
professor emeritus
Reged: 01/26/07
Posts: 512
Loc: Auckland, New Zealand
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It certainly is and the milky way from a dark site is incredible. I do miss looking for objects in Ursa Major and Draco though - most of which never rise.
--------------------
Clear skies!
18 inch f4.5 Obsession #1637
12 inch f5.4 reflector
Just another frozen astronomer
Kumeu Observatory
Auckland NZ
7,276 deep sky objects incl 4,670 ngcs
Who dares - observes!
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