Astronomy Picture of the Day ·

X-Rays From Sirius B

The Astronomy Picture of the Day for October 6, 2000 is “X-Rays From Sirius B,” an image. It is credited to Credit: NASA / CXC / SAO. The original explanation runs about 221 words.

X-Rays From Sirius B
Credit: NASA / CXC / SAO Shown from science.nasa.gov. Not hosted by OpenOrbit.

From the explanation

“In visible light Sirius A (Alpha Canis Majoris) is the brightest star in the night sky, a closely watched celestial beacon throughout recorded history . Part of a binary star system only 8 light-years away, it was known in modern times to have a small companion star, Sirius B.”

— APOD editors, October 6, 2000

Read the full explanation on science.nasa.gov

At a glance

Date
October 6, 2000
Type
Image
Credit
Credit: NASA / CXC / SAO
Copyright
No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length
About 221 words

All of October 2000 → · 2000 by month → · Full archive since 1995 →

Topics in this entry

The Sun

Topics are matched from words in the title and explanation.

On this day: October 6 in other years

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Source

Copy taken Oct 28, 2026, 2:39 AM EDT. The image and explanation belong to their creators. OpenOrbit is not affiliated with or endorsed by NASA.