Images by Date
Images by Category
Solar System
Stars
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
3D Wall
Photo Blog
Top Rated Images
Image Handouts
Desktops
High Res Prints
Fits Files
Image Tutorials
Photo Album Tutorial
False Color
Cosmic Distance
Look-Back Time
Scale & Distance
Angular Measurement
Images & Processing
AVM/Metadata
Getting Hard Copies
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
More Images of Comets ISON & PanSTARRS
1
Click for large jpg ISON X-ray
Jpeg, Tif
Click for large jpg ISON Optical
Jpeg, Tif
Click for large jpg PanSTARRS X-ray
Jpeg, Tif
Click for large jpg PanSTARRS Optical
Jpeg, Tif
X-ray & Optical Images of Comets ISON & PanSTARRS
Astronomers used Chandra to observe Comet ISON and Comet PanSTARRS in 2013, when these comets were relatively close to the Earth. These images show the comets in optical light as taken by an astrophotographer, with insets showing the X-ray data from Chandra. The X-ray emission is produced when a wind of particles from the Sun - the solar wind - strikes the comet's atmosphere. The Chandra data was used to estimate the composition of the solar wind, including the amount of carbon and nitrogen, finding values that agree with independent measurements.
(Credit: X-ray: NASA/CXC/Univ. of CT/B.Snios et al, Optical: DSS, Damian Peach (damianpeach.com))


Return to Comets ISON & PanSTARRS (April 18, 2016)