Fact Check

Photograph 'Taken Without a Telescope' Shows Andromeda Galaxy Next to the Moon

A purported photograph that shows the galaxy next to (and much larger than) the moon is actually a composite of two separate images.

by Dan Evon, Published May 25, 2016


Image courtesy of Reddit


Claim:
A photograph of the Andromeda Galaxy next to the moon was taken without a telescope in Finland.
Rating:
False

About this rating


An image purportedly showing the Andromeda Galaxy next to the moon circulated in May 2016, along with the claim that it was taken from Finland and without the aid of a telescope.

However, this picture is actually a composite of two separate images, and the Andromeda Galaxy appears far smaller in the night sky to the naked eye — almost identical to a garden-variety, somewhat fuzzy star, as this photograph illustrates (the galaxy is in the top center):

Screen Shot 2016-05-25 at 2.07.40 PM

In May 2012, NASA released a new image of what it called "The Galaxy Next Door" taken by an orbiting ultraviolet space telescope called the Galaxy Evolution Explorer, or GALEX for short:

Hot stars burn brightly in this new image from NASA's Galaxy Evolution Explorer, showing the ultraviolet side of a familiar face.

Hot stars burn brightly in this new image from NASA's Galaxy Evolution Explorer, showing the ultraviolet side of a familiar face.

At approximately 2.5 million light-years away, the Andromeda galaxy, or M31, is our Milky Way's largest galactic neighbor. The entire galaxy spans 260,000 light-years across -- a distance so large, it took 11 different image segments stitched together to produce this view of the galaxy next door.

[...]

Andromeda is so bright and close to us that it is one of only ten galaxies that can be spotted from Earth with the naked eye. This view is two-color composite, where blue represents far-ultraviolet light, and orange is near-ultraviolet light.

In 2015, Reddit user Tom Buckley took the GALEX image and added it into a photograph of the moon that had been taken by Flickr user Stephen Rahn. Buckley said that his composite showed "Andromeda's actual size if it was brighter":

Most versions of this size comparison paste the moon (rather poorly) onto an existing picture of the galaxy. But I couldn't find any the other way round, where the galaxy is pasted onto an existing picture of the moon. I think you get a much more realistic sense of what's 'hidden' in our night sky like this.

Oh yes and original credit to (Stephen Rahn):

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By Dan Evon

Dan Evon is a former writer for Snopes.


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