Support Astromart! | Log In | Help
Astronomy NewsTelescope ClassifiedsTelescope AuctionsTelescope Articles & ArticlesTelescope Articles & ReviewsTelescope and Astronomy ForumsAstronomy Events Calendar
Review Categories
Search Reviews
Submit Review

User Name:

Password:

Save Login
 
New to Astromart?
Register an account...

Terms of Service
Privacy Policy
Help & FAQ
Astronomy Links
User Profiles
Top Users List
Sponsors
Supporters
RSS Feeds

Home > Articles > Other Articles > Other > Overexposures for discovery and fame

Overexposures for discovery and fame
By Norman Sperling - 12/22/2004

Imaging technology is rapidly improving and cheapening. From current astrophotography guides, determine “recommended” exposures for accessible deep-sky objects. Then take time exposures that are many times longer than the recommended amount - up to the sky-fogging limit. That should grossly overexpose the inner parts, but what will you discover beyond them? This may reveal new structures, some of which have different shapes than the brighter components. Some may show nothing new - itself noteworthy. And all the ones that do show something new are worth drawing scholarly attention to. Please send me a copy of any interesting results.

--excerpted with permission from "What Your Astronomy Textbook Won't Tell You", copyright (c) 2002.

Have you seen Tony and Daphne Hallas’s photo of M57, showing 2 larger loops of faint old gas beyond the Ring? Have you seen their photo of part of M13, showing gazillions of stars all the way out to the edge of the photo, and presumably beyond? Now apply the same technique to elliptical galaxies. I suspect that at least one will reveal a hint of a Population I disc outside the elliptical (=bulge), showing that that galaxy is really a spiral rather than an ellipse. Important discoveries await serious amateur astronomers. All it takes is really deep overexposures.

del.icio.us   Digg it   Reddit   Twitter   MySpace   Stumbleupon  

Funding Member
Funding Member
Telescopes, Astronomy,
Binoculars


Advanced Search...

All times are in (GMT-8:00) Pacific Standard Time Zone  
Astronomy News | Telecope Classifieds | Telescope Auctions | Telescope Reviews | Telescopes | Telescope and Astronomy Forums | My Account | Help | RSS