Astronomy Picture of the Day ·
Cooling Neutron Star
The Astronomy Picture of the Day for March 5, 2011 is “Cooling Neutron Star,” an image. It is credited to Credit: X-ray: NASA / CXC / UNAM / Ioffe / D.Page , P.Shternin et al ; Optical: NASA / STScI ; Illustration: NASA/ CXC /M.Weiss). The original explanation runs about 138 words.
From the explanation
“Supernova remnant Cassiopeia A (Cas A) is a comfortable 11,000 light-years away. Light from the Cas A supernova, the death explosion of a massive star, first reached Earth just 330 years ago.”
— APOD editors, March 5, 2011
Read the full explanation on science.nasa.gov
Advertisement
At a glance
- Date
- March 5, 2011
- Type
- Image
- Credit
- Credit: X-ray: NASA / CXC / UNAM / Ioffe / D.Page , P.Shternin et al ; Optical: NASA / STScI ; Illustration: NASA/ CXC /M.Weiss)
- Copyright
- No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
- Explanation length
- About 138 words