Astronomy Picture of the Day ·

NGC 3314: When Galaxies Overlap

The Astronomy Picture of the Day for November 17, 2021 is “NGC 3314: When Galaxies Overlap,” an image. The picture is copyrighted by its creator (Image Credit: NASA , ESA, Hubble ; Processing & Copyright: William Ostling ( The Astronomy Enthusiast )). The original explanation runs about 186 words.

The Hubble image shows the two spiral galaxies directly overlapping in the system designated NGC 3314. Please see the explanation for more detailed information.
Credit: Image Credit: NASA , ESA, Hubble ; Processing & Copyright: William Ostling ( The Astronomy Enthusiast ) Copyrighted Shown from science.nasa.gov. Not hosted by OpenOrbit.

From the explanation

“Why doesn’t the nearby galaxy create a gravitational lensing effect on the background galaxy? It does, but since both galaxies are so nearby, the angular shift is much smaller than the angular size s of the galaxies themselves.”

— APOD editors, November 17, 2021

Read the full explanation on science.nasa.gov

At a glance

Date
November 17, 2021
Type
Image
Credit
Credit: Image Credit: NASA , ESA, Hubble ; Processing & Copyright: William Ostling ( The Astronomy Enthusiast )
Copyright
Copyrighted by the credited creator. Ask the copyright holder before reusing it.
Explanation length
About 186 words

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Topics in this entry

Galaxies

Topics are matched from words in the title and explanation.

On this day: November 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.