Astronomy Picture of the Day ·

Light Echoes from V838 Mon

The Astronomy Picture of the Day for November 22, 2009 is “Light Echoes from V838 Mon,” an image. It is credited to Credit: NASA and the Hubble Heritage Team ( AURA / STScI ). The original explanation runs about 155 words.

Light Echoes from V838 Mon
Credit: NASA and the Hubble Heritage Team ( AURA / STScI ) Shown from science.nasa.gov. Not hosted by OpenOrbit.

From the explanation

“What caused this outburst of V838 Mon? For reasons unknown , star V838 Mon ‘s outer surface suddenly greatly expanded with the result that it became the brightest star in the entire Milky Way Galaxy in January 2002.”

— APOD editors, November 22, 2009

Read the full explanation on science.nasa.gov

At a glance

Date
November 22, 2009
Type
Image
Credit
Credit: NASA and the Hubble Heritage Team ( AURA / STScI )
Copyright
No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length
About 155 words

All of November 2009 → · 2009 by month → · Full archive since 1995 →

Topics in this entry

The Milky WayGalaxies

Topics are matched from words in the title and explanation.

On this day: November 22 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.