Images by Date
Images by Category
Solar System
Stars
Exoplanets
White Dwarfs
Supernovas
Neutron Stars
Black Holes
Milky Way Galaxy
Normal Galaxies
Quasars
Galaxy Clusters
Cosmology/Deep Field
Miscellaneous
Images by Interest
Space Scoop for Kids
4K JPG
Multiwavelength
Sky Map
Constellations
Photo Blog
Top Rated Images
Image Handouts
Desktops
Fits Files
Image Tutorials
Photo Album Tutorial
False Color
Cosmic Distance
Look-Back Time
Scale & Distance
Angular Measurement
Images & Processing
AVM/Metadata
Image Use Policy
Web Shortcuts
Chandra Blog
RSS Feed
Chronicle
Email Newsletter
News & Noteworthy
Image Use Policy
Questions & Answers
Glossary of Terms
Download Guide
Get Adobe Reader
Cassiopeia A: Supernova Remnant

See It For Yourself: Locate Cas A in the Sky

CASSIOPEIA - Optical Image
Optical: MDM/R. Fesen
The supernova remnant, Cassiopeia A (Cas A), is not an object you can easily view with a backyard telescope, because the remnant is not very bright in visible light. However, you can star-hop to Cas A by the following method:
CASSIOPEIA - constellation
Your guide stars are delta and gamma Cassiopeia. Imagine the line which connects these two stars and extend this imaginary line from delta to gamma, but three times that distance past gamma. Aim your telescope a hair south of that point, and that is the home of the supernova remnant Cassiopeia A. Note, the R.A. and Dec of this object is: Right Ascension 23h 23m 25.8s, Declination +58ยบ 8' 53.4" if you prefer to use setting circles.


Return to Cassiopeia A (26 Aug 99)