Image of the day

Captured by
Douglas Rollain

M20 Trifid Nebula in LRGBHa

My Account

New to Astromart?

Register an account...

Need Help?

Posts Made By: Don Spencer

July 16, 2002 07:52 PM Forum: Film Astrophotography - Imaging and Processing

Antares/Rho Ophicus

Posted By Don Spencer

Another scanned negativce that needs to be rescanned. This one was 30 minutes, unguided, 200mm lens.

August 1, 2002 02:33 PM Forum: Meade

Weight for the new 14"

Posted By Don Spencer

Anyone know how much the new 14" GPS weighs? I wen to Meade's site and it's weight is not listed. The 12" is just about the max weight one would want for portability.
Don

August 26, 2002 04:13 PM Forum: Equipment Talk

12" LX200 primary scratched...HELP!

Posted By Don Spencer

Well, I am not going to go into the idiotic reasons as to why my primary mirror is scratched. Suffice it to say, it was user error! To get it replaced by Meade, I have to buy both the primary and secondary at $1750. for that price, I'll dump the thing and buy a new 10" GPS. I love this scope and hate to part with it. Does anyone know if this mirror can be repaired? If so, by whom?
Thanks,
Don Spencer
member SDAA
www.sdaa.org

December 27, 2002 12:34 AM Forum: Pictures of Me and My Telescope and........

ah, the joys of summer...

Posted By Don Spencer

Taking pictures and observing is so much easier in shorts!

December 27, 2002 06:18 AM Forum: CCD Imaging and Processing/Solar System

saturn 12/26/02

Posted By Don Spencer

12 shots with a Sony s75 coupled to a 22mm Nagler. Staked in Astrostack. First attempt with the new camera. Will have to monkey around with the settings somemore.
Don Spencer

January 9, 2003 03:42 PM Forum: Film Astrophotography - Imaging and Processing

Lessons learned

Posted By Don Spencer

In the photo posted below, you will see some of the lessons I have learned the hard way.
First, never shine a light at the camera, not even a red one! The seals on my camera are very good, so we believe that the light leak is in the viewfinder.
second, even when shooting piggy back and auto guiding through the scope (Giant Easy Guider and an ST-4), you still need to lock the mirror down or, don't allow the shot to cross the meridian.You get double stars! These are hard lessons to learn when one is standing outside on a cold winter night! *L*
Witchhead nebula(poorly framed). Elitechrome 200,
Spiratone 400mm f/6.3 lens The lines you see where an artifact of the scan process.

January 21, 2003 05:00 AM Forum: CCD Imaging and Processing/Solar System

Betelgeuse

Posted By Don Spencer

While testing out a new diaganol and shooting some shots of saturn, I decided to give my digital camera a shot at a star.
this is 3 shots of Betelguese, stacked in astrostack.
f/2.5 1 second exposures.

February 15, 2003 06:36 AM Forum: Pictures of Me and My Telescope and........

my new setup

Posted By Don Spencer

12" LX200 with an Orion astroview 120 piggybacked for astrophotography

April 18, 2003 10:35 PM Forum: Film Astrophotography - Imaging and Processing

vignetting....

Posted By Don Spencer

I'm hoping someone can help me out here. I have been shooting through a 120mm Orion astroview. The problem I have been having is vignetting. I was hoping someone could remove the vignetting from this image and explain how they did it.
Thanks,
Don Spencer

April 24, 2003 03:16 PM Forum: Film Astrophotography - Imaging and Processing

Nebula or artifact

Posted By Don Spencer

Hey folks.
Since we have been clouded over here for what seems years, I was working on honing my Photoshop techniques on an old Ikeya-Zhang photo taken back on 4/14/02 at 4 am. At the time, this comet was low in the NE sky in Cassiopiea. A ribbon type nebula showed up in the lower left quadrant but the only thing in see in "The Sky" for this area is a planetary nebula. Here's the photo along with a sky chart: http://www.members.cox.net/ecdon/ikeyaand_nebula.html
Any ideas?
Thanks,
Don Spencer