How to Find Messier 108

How to Find Messier 108


Messier 108 is a barred spiral galaxy found 45 million light years away. It is viewed end-on from Earth. It was discovered by Mechain 3 days after M97 but didn't make it into the original Messier catalog. It was added in 1954 based on the original notes by Messier. This galaxy is interesting as it contains many shells of expanding gas called supershells. These areas may indicate active star formation and supernovae events.

Image credit: Hewholooks

Telescopic Image to Scale:


This image is the size of a full moon for size comparison.

Other Names:

Messier 108

M 108

NGC 3556

UGC 6225

PGC 34030


Magnitude = 10.6

Surface brightness = 13

Telescope Aperture City Suburbs Rural Dark Sky
4 inches 9 10 11 12.5
5 inches 9.5 10.5 11.5 13
6 inches 10 11 12 13.5
8 inches 10.5 11.5 12.5 14
10 inches 11 12 13 14.5

Use this chart to estimate if you can see the object from your location with your telescope. For more help on using this chart click here.

How to Find It:

This galaxy resides in the constellation of Ursa Major and is in the crosshairs on the map below of the Big Dipper asterism. It's co-ordinates are: RA 11h 12m 16.3 DEC +55° 35′ 52.9″ if you are using guiding software.

How to find Messier 108

To find more space objects have a look at the constellation guide by clicking the link or go back to the list of deep space objects.

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