Astronomy Picture of the Day ·

Ultraviolet Andromeda

The Astronomy Picture of the Day for September 17, 2009 is “Ultraviolet Andromeda,” an image. It is credited to Credit: UV – NASA /Swift/Stefan Immler ( GSFC ) and Erin Grand (UMCP) Optical – Bill Schoening, Vanessa Harvey/REU program/NOAO/AURA/NSF. The original explanation runs about 111 words.

Ultraviolet Andromeda
Credit: UV – NASA /Swift/Stefan Immler ( GSFC ) and Erin Grand (UMCP) Optical – Bill Schoening, Vanessa Harvey/REU program/NOAO/AURA/NSF Shown from science.nasa.gov. Not hosted by OpenOrbit.

From the explanation

“Taken by a telescope onboard NASA’s Swift satellite , this stunning vista represents the highest resolution image ever made of the Andromeda Galaxy (aka M31) – at ultraviolet wavelengths . The mosaic is composed of 330 individual images covering a region 200,000 light-years wide.”

— APOD editors, September 17, 2009

Read the full explanation on science.nasa.gov

At a glance

Date
September 17, 2009
Type
Image
Credit
Credit: UV – NASA /Swift/Stefan Immler ( GSFC ) and Erin Grand (UMCP) Optical – Bill Schoening, Vanessa Harvey/REU program/NOAO/AURA/NSF
Copyright
No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length
About 111 words

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

Topics in this entry

Andromeda GalaxyGalaxies

Topics are matched from words in the title and explanation.

On this day: September 17 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.