ASSNE.ORG

Tony:
That's a wonderful writeup. Your really small standard deviations are a testament to your self-discipline and care. Superb!
- Mark M

Roger, I'm glad you did this experiment. With some exceptions, it confirms things that theory predicts: Yes, eccentricity gets worse with longer exposures. Stars will look more round by stacking many short exposures than by stacking a smaller number of long exposures. (This is due to imperfect guidi...

Cool! Those colorings almost look like what I'm used to seeing from narrowband filter imaging. The blues and reds really stand out.
- Mark

This past Sunday (7/10/22), ASSNE supported an outreach event with the Buzzards Bay Coalition. We did some early-evening summer viewing at The Bogs in Mattapoisett, MA. I was there from ASSNE (with 2 outreach scopes -- a 5" dob and my 6" dob), and we had 12-15 visitors. We started with sol...

Thank you, Pete, for organizing this and for documenting it so well with pictures! I had a ball, and really enjoyed talking to all the families that stopped by. Even though it was cloudy through much of the afternoon, there were a bunch of kids who had fun exploring what the telescopes could do whil...

Roger: Thanks for a great writeup. I usually bin 3x3 with my QHY268M, and the primary motivation is reducing the amount of disk space that I need for archiving. (I permanently archive every image that I use during my variable star work.) With 3x3 binning and compression, I can squeeze an entire nigh...

Not only do I always look at the images, but many times they become my new monitor background image (until you post another one that blows away the previous one).
- Mark M

Pete: I really like your M31 image -- it looks cool! But as I look at your image of IC1613, I have a sneaking suspicion that what you're fighting isn't local light glare from a neighbor as much as it's a background skyglow gradient. These are common in our suburban skies (unless you're pointed at th...

So, after thinking through Pete's (and Bruce's) comment, I'm going to take back some of what I said in my initial post. I think this technology has a chance to bring dramatic change to how we image because it brings a completely new way to fix atmospheric distortion and mount tracking errors. It sor...

Canon has been in the news recently with another announcement about SPAD technology (Single Photon Avalanche Diode). There's been some speculation on Cloudy Nights about how this might revolutionize astro imaging. I'm not holding my breath, because existing current-generation camera technology (ASI2...