Sharing astrononomy information, references, pictures and tools
Web Links Of Value
Web links to Lists And References for Astronomical Objects
International Dark Sky Association
- Dark sky info and how you can help keep the skies dark.
- Wonderfully done and well organized site for the constellations
Beginning Backyard Astronomy pages by
Telescope Observation page for beginners or intermediate observers by
Naked Eye Astronomy
- Tips for looking at the night sky with no telescope.
- Deep images of full sky with object search. Remarkable
- Our Sun right now at
. Ham Radio
- Sattelite And Space Station tracking information and astroids/comets as well
Space Elevator Astro Links
: Many astronomy links half way down. It also covers future Space Elevator
Detailed Info Sites For Specific Deep Sky Objects
- #1 organization for observing projects to earning cirtificate/pins or just find lists
- Fantastic site to get pictures of the NGC or IC objects easily.
SAC Observing Lists
- Saguaro collection of many fine lists and also see their astro links.
Adventures In Deep Space
- Advanced collection of astronomical targets and projects for visual observers.
- Image search frontend: Powerful and serious image searches
CBAT list from Harvard
with some pictures
Measurements And Calculations Used In Astronomy
- Also see
for common formulas for visual and astrophotography math.
Star Testing Of Optics
- Shows star test patterns that are from excellent to bad showing common problems
: - Sky and Telescope on
. SCT is very sensitive see
measures sky glow in mag per Arc Second. Learn about
sky glow and mag per arcSec
Limiting Magnitude Calculator
- Calculate expected limited magnitude for the telescope, sky, observer
- Extinction (loss of magnitude due to atmosphere) and Refraction is explained nicely
Image Scale Calculator
- Enter telescope and CCD sensor specs and calculate arcSec per Pixelsearchs