Community note: This js9 web page and its software will be sunsetted by April 30th. Thank you.

Please update your bookmarks to the working copy at https://www.js9.org/about.html





Guided Tutorial

• GUIDE FOR USING JS9 Part 1
• GUIDE FOR USING JS9 Part 2
• Decoding Starlight
• 3 Color Composites
• X-ray Spectroscopy of Supernova Remnants
• Analysis of Two Pulsating X-ray sources
• Cartwheel Galaxy
• The Bullet Cluster
• False Color Images
• Adopt A Supernova
• Measuring the Expansion Rate of a Supernova Remnant



JS9 Solutions from Prior Events

• 2021 National Event
• 2020 MIT Invitational
• 2019 National Event
• 2018 National Event



Other Useful Images

• Bullet Cluster - optical lensing



Published: August 2020


Contact Us
cxcpub@cfa.harvard.edu
617-496-7941
Harvard-Smithsonian Center for Astrophysics
60 Garden Street,
Cambridge, MA 02138 USA
Creator/Manager: Kimberly Arcand
Art Direction/Design: Kristin DiVona
Web Developer: Khajag Mgrdichian


Chandra X-ray Center, Operated for NASA by the Smithsonian Astrophysical Observatory. This site was developed with funding from NASA under contract NAS8-03060   |   Privacy  |  Accessibility
Additional support from NASA's Universe of Learning (UoL). UoL materials are based upon work supported by NASA under award number NNX16AC65A to the Space
Telescope Science Institute, working in partnership with Caltech/IPAC, Jet Propulsion Laboratory, Smithsonian Astrophysical Observatory.