Scott Rose
sage
Reged: 04/20/08
Posts: 261
Loc: beachwood ohio
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What are some good DSO objects for the fall sky that will show up well in a 4" refractor. Thanks.
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azure1961p
professor emeritus
Reged: 01/17/09
Posts: 731
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For a galaxy M-31, for a nebula if you're up till just before dawn M42.
Right now though - M31 would be my first DSO on the list with a 4" after the sky went dark. I'd enjoy some low power wide angle shots with that scope.
For a globular, look up M15 at the OTHER end of Pegasus. At 4" you'll resolve the periphery and a few stars across the face. The way the stars come and go however because its still fairly threshold is compelling in itself for its own reasons. Larger apertures show more, but the 4" view , and thru a refracor is a mystique unto itself. Sit there give it time and let the glimmers come through. It can really be quite captivating. Figure 100x and up.
Pete
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molniyabeer
Confused and Asleep
Reged: 01/08/05
Posts: 2556
Loc: Central Coast, California
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M42, the Orion Nebula (but that does not rise until the wee hours of the morning right now). M13, the globular cluster in Herculese, would look nice, too.
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Steve
16" Meade LightBridge (Beowulf)
10" Hardin DSH, StarMax 127mm Mak, PST H-a
Oberwerk 11 x 70 binocs, Tasco 10 x 50 binocs
Santa Maria Clear Sky Clock
Figueroa Mt Clear Sky Clock
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Dean Norris
sage
Reged: 11/05/08
Posts: 430
Loc: Santa Cruz, Ca
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Scott, What has been suggested are great objects to observe. You should also observe the Double Cluster in Perseus. In a 4" refractor I bet the view will be awesome. M36,37 and 38 in Auriga are also good open clusters to view. Dean
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1971 10" Cave Newtonian F/6
MoonLite CR Focuser Telrad Finder 8x50 finder
TV 40mm, 32, 20, 7.4, Meade 6mm, UO 5mm, Meade 2x Barlow
7x50 Binoculars
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Rat
super member
Reged: 10/13/06
Posts: 150
Loc: USA
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I have to agree with Dean that the Double Cluster should be a good target. I looked at it the other night with my 4" refractor and it was simply gorgeous!
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markan
super member
Reged: 07/13/09
Posts: 126
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Quote:
Scott, What has been suggested are great objects to observe. You should also observe the Double Cluster in Perseus. In a 4" refractor I bet the view will be awesome. M36,37 and 38 in Auriga are also good open clusters to view. Dean
I took a look at the Double Cluster last weekend with my refractor and my new Meade 5000 28mm SWA eyepiece. It looked great. The Wild Duck Cluster as well.
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Sky-Watcher 100mm ED f/9 refractor
Sky-Watcher 200mm f/5 reflector
EQ5 mount, Orion SkyView AZ
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scott m
super member
Reged: 12/06/07
Posts: 190
Loc: Hatfield Pa
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Using my 90mm and 120mm refractors; M 27-Dumbbell Nebula is pretty good even without filters. Also M103 and NGC 457 (the Owl,ET or Dragonfly) Clusters in Cassiopeia and M29 in Cygnus.
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Orion Astroview 120st EQ w/rigel+2"diag(Cosmo)
Zhumell 10 inch dob w/telrad (Oddball)
Nikon AE 10x50 Binos
Astro-Tech Paradigm 5,8,12,15,18,25mm
GSO SuperView 30mm,20mm,15mm,10mm
Knight Owl EWA 6mm,9mm
Zhumell Plossl EP Kit
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caheaton
super member
Reged: 05/26/09
Posts: 157
Loc: SW Ohio
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I'd also suggest NGC7789 in Cassiopeia. If you have access to really dark skies try for Barnard 168 (a dark nebula). I saw that last weekend in my 80mm refractor and it looked fantastic (like a twisted black rope stretched across a dense field of stars); if you go for B168, use a low power EP as it stretches for over 3 degrees in length.
Craig
Scott...I just noticed that you're in Ohio. What part of Ohio? I'm in the southwest corner and my dark sky sight is near the beach of Stonelick Lake State Park.
Edited by caheaton (09/22/09 09:12 PM)
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Achernar
Postmaster
Reged: 02/25/06
Posts: 5025
Loc: Mobile, Alabama, USA
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The galaxies M-31, M-32 and M-77 are good ones to star with. If your skies are pretty dark, go for NGC-7331 and NGC-253, which is probably the closest large spiral galaxy outside of the Local Group. M-57, M-27, M-76, NGC-6826 and NGC-7662 are bright planetary nebulae that are easy for a 4-inch. There's many fainter examples you will sweep up with a 4-inch refractor later. Some good open clusters are M-11, The Double Cluster, NGC-7789 and NGC-457. Globular clusters that are good fall objects are M-15, M-2 and M-30. If you can get to Sagittarius, M-22, M-28 and M-55 are nice ones too. There's lots more globular clusters that a 4-inch will reveal from a decent site as well, but these are good ones to start with, All but M-55 can slice though quite a bit of urban light pollution, but they will look a lot better from a darker site because a 4-inch stars breaking them up into resolved stars. For emission nebulae, you can go for M-8, M-17, the Veil Nebula if you can get to a decent site, and you could even go for NGC-281 in Cassiopeia. Later in the night you can then go for the Orion and Crab Nebulae.
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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Dave Mitsky
Postmaster
Reged: 04/08/02
Posts: 10494
Loc: PA, USA, Planet Earth
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Here are a few more targets: M24 and LDN 1773 (the Pipe Nebula) in the early evening, NGC 752 and the Golf Putter asterism, NGC 1528, NGC 7000 (the North America Nebula) using a narrowband or OIII filter, and Stock 2.
Dave Mitsky
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Chance favors the prepared mind.
De gustibus non est disputandum.
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glava2005
member
Reged: 04/12/09
Posts: 89
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there is a bunch of very nice open clusters in Cygnus.. just a wonderfull sight for some wide field observing
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Sky-Watcher ED80
TS Astro5 mount
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droid
rocketman
Reged: 08/29/04
Posts: 4037
Loc: ohio
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Quote:
Scott...I just noticed that you're in Ohio. What part of Ohio? I'm in the southwest corner and my dark sky sight is near the beach of Stonelick Lake State Park.
Im in the north east corner , conneaut to be exact.
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12 inch Truss Reflector "John"
102mm Celestron C102HD
Tasco 7TE5 60mm Classic
Tasco 9TE5 60mm Classic
Celestron Ultima 2000 SCT
Remains of an 8 inch dob
Celestron Comet catcher(orange tube)
1960 Edscorp Space Conquerer 6inch f/8
10x50 Bushnell Binoculars.
11T 4.5 inch Tasco reflector Lunograsso?
60mm Telescope Club
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droid
rocketman
Reged: 08/29/04
Posts: 4037
Loc: ohio
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Try this web site for some ideas also.
http://www.geocities.com/the_150mm_reflector/observations.htm
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12 inch Truss Reflector "John"
102mm Celestron C102HD
Tasco 7TE5 60mm Classic
Tasco 9TE5 60mm Classic
Celestron Ultima 2000 SCT
Remains of an 8 inch dob
Celestron Comet catcher(orange tube)
1960 Edscorp Space Conquerer 6inch f/8
10x50 Bushnell Binoculars.
11T 4.5 inch Tasco reflector Lunograsso?
60mm Telescope Club
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