Return to the Cloudy Nights Telescope Reviews home page

Click here if you are having trouble logging into the forums

Privacy Policy | Please read our Terms of Service | Signup and Troubleshooting FAQ | Problems? PM a Red or a Green Gu.... uh, User

Observing >> Deep Sky Observing

galaxyman
Pooh-Bah
*****

Reged: 04/04/05
Posts: 1171
Loc: Limerick, Pa
Re: Share your DSO observing techniques
      07/13/08 01:28 PM

Quote:

Nice start. Averted vision is very important. How about using higher power to darken the sky a bit to make some DSOs stand out better. Another tip from Sue French in the August Sky and Telescope is to use higher power on globular clusters and planetary nebula to bring out more detail.




Yep...averted vision (even scanning) is one technique.

Also be a pirate...meaning use a eye patch. Makes it much easier and more comfortable to view. Helps in baffling fatigue also.

Don’t be a one-eyed pirate…meaning alternate eyes. If you have fairly decent vision in both eyes, switch eyes at the eyepiece. This will also battle fatigue.

Be a one-eyed hooded pirate...meaning baffling stray light around you and the eyepiece. Some use this technique with great results, though fogging the eyepiece can happen with this.

Be a one-eyed hooded pirate that likes to travel…if necessary. Meaning finding or observing from the darkest site possible, will be a huge advantage on deep sky observing. Even slightly darker skies then your backyard will produce big dividends.

Yes, higher power is something I been saying for years and years (actually decades and decades).

DSO’s as a whole should not be subject to what some might call “optimum magnification”, for many variables exist. Such as sky conditions (both seeing and transparency), scope condition (optics, collimation), object (size, magnitude, surface brightness), and of course the observer himself.

I like to push the power for most objects...particularly galaxies, planetary nebula, tight globs. Even large nebula like M-42 can reveal great detail using more than just low power.

Know that each object has its own character. For instance one galaxy may look best (detail included) in my 22” at 200x, while another may require 400x or more.

So when a certain galaxy per say is in view, I will continue step by step to push the power. In many instances detail will start to emerge. Even on nights where seeing is only fair, I’ll still push the power a bit.

Many times on these type of nights, seeing will settle for moments of time, this is where patience is good to have at the eyepiece (heck, that should apply at all times). So when those moments come, many times detail will pop or emerge.

My two main scopes are the 22” dob, and the 8” refractor. Both scopes I have (and will) continue to push the envelope. In fact last year, I really pushed the big refractor while observing many ARP’s.

I was amazed on the detail I could see on many of them, so technique can go a long way on what can be seen.

Oh, I need to say some of my best views ever was with the 22” dob on M-82 and M-104 at 715x to 1002x, using Naglers 3.5mm and 2.5mm respectively. The views were Hubblesque!!!


Karl
E.O.H.


Chesmont Astronomical Society
Telekit (Swayze optics) 22" F/4.5 Dob
Homemade (Parks Optics) 12.5" F/4.8 Dob
TMB 8" F/9 Refractor(The Beast)
Astrozap 6" f/8 Refractor
Orion 4" f/6 Refractor

--------------------
So many galaxies, so little time!

Post Extras Print Post   Remind Me!     Notify Moderator

Entire thread
Subject Posted by Posted on
* Share your DSO observing techniques Olivier Biot 07/13/08 08:18 AM
. * Re: Share your DSO observing techniques PeterSurma   08/02/08 07:20 PM
. * Re: Share your DSO observing techniques Jeff Morgan   08/02/08 07:33 PM
. * Re: Share your DSO observing techniques JohanK   07/17/08 11:48 AM
. * Re: Share your DSO observing techniques xfile101   07/17/08 01:06 PM
. * Re: Share your DSO observing techniques Jeff Young   07/17/08 01:28 PM
. * Re: Share your DSO observing techniques desertstarsAdministrator   07/18/08 02:38 PM
. * Re: Share your DSO observing techniques Lard Greystoke   07/28/08 11:28 PM
. * Re: Share your DSO observing techniques GlennLeDrew   07/29/08 02:30 AM
. * Re: Share your DSO observing techniques AZStarGuy   07/29/08 12:11 PM
. * Re: Share your DSO observing techniques rogerandgarf   07/29/08 06:38 PM
. * Re: Share your DSO observing techniques Jeff Morgan   07/29/08 08:56 PM
. * Re: Share your DSO observing techniques mv1000   07/29/08 09:51 PM
. * Re: Share your DSO observing techniques GlennLeDrew   07/30/08 07:21 PM
. * Re: Share your DSO observing techniques MessierScott   07/14/08 06:11 PM
. * Re: Share your DSO observing techniques astrokido   07/14/08 06:45 PM
. * Re: Share your DSO observing techniques Mr. Bill   07/15/08 11:38 AM
. * Re: Share your DSO observing techniques Jeff Morgan   07/14/08 12:16 PM
. * Re: Share your DSO observing techniques Jeff Young   07/14/08 06:11 PM
. * Re: Share your DSO observing techniques rodelaet   07/13/08 12:24 PM
. * Re: Share your DSO observing techniques John Kocijanski   07/13/08 09:43 AM
. * Re: Share your DSO observing techniques galaxyman   07/13/08 01:28 PM
. * Re: Share your DSO observing techniques SaberScorpX   07/13/08 07:24 PM
. * Re: Share your DSO observing techniques galaxyman   07/14/08 12:16 AM
. * Re: Share your DSO observing techniques stevek   07/14/08 02:45 AM
. * Re: Share your DSO observing techniques dengwer   07/14/08 11:58 AM
. * Re: Share your DSO observing techniques Mr Q   07/13/08 07:40 PM
. * Re: Share your DSO observing techniques moron392   07/13/08 08:57 PM
. * Re: Share your DSO observing techniques Phillip Creed   07/13/08 09:13 PM
. * Re: Share your DSO observing techniques Josh U   07/13/08 08:45 AM

Extra information
1 registered and 3 anonymous users are browsing this forum.

Moderator:  matt, Olivier Biot 



Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled

Rating:
Thread views: 1002


Jump to

Home



Cloudy Nights Sponsor: Astronomics