Arp319 at 9 hours 56 minutes

The 9 hour rule in Astrophotography

I am testing to see if what is said about 9 hours being minimal time for a truly deep sky image. Collecting 9 hours in Syracuse is at least a 3 night proposition but I was able to keep just for minutes shy of 10 hours for this image. There is a definite improvement over the 6.5 hour image in brightness of the galaxies and smoothness in the background. Here is the final image and links to the previous images. The differences are subtle. At a quick glance, I don’t really see much difference in the three pictures. But when […]

Member’s session 10/21 is ON!

SAS Members, Come and join us at Darling Hill for our final scheduled Member’s observing session of the 2022 observing season. It looks like the weather will be excellent tonight. Clear, moonless skies, low humidity and mild temperatures. It will be chilly tonight so come prepared. See you there!

10/14 Public session is ON!

SAS Members, We’re on for tonight! Our final regularly-scheduled public observing session is on for tonight, 10/14 at Darling Hill Observatory in Tully, NY. Sunset will be at about 6:30 and the waning gibbous moon will be up around 10:00. We’ll have Jupiter and Saturn well positioned in the southeast and Mars a bit later. The temperatures have been cool at night and getting cooler, so dress warmly. Hat & gloves highly recommended. Come down and join us!

Mike holding a polished ring gear

Polishing, tuning and final assembly of my CGEM II

Following the dissassembly of my mount, the cleaning and reassembly went surprisingly smoothly. I spent most of my time sanding and polishing the ring bearings and the mount where they mated. You can see from this image of the cleaned up bearing that there was some rubbing on the bearing which was probably causing some of the stickiness. I thought it might have been from the clutch, but if that slips, it’s just a little bit from handling the mount. That mark went around the entire ring. There was marking inside the mound barrel as well. I started with around […]