Messier 101

Constellation: Ursa Major

Messier 101, The Pinwheel galaxy, is face-on galaxy in the constellation of Ursa Major. It is located about 21 million Ly from Earth. Messier 101 is a large galaxy, with a diameter of 170,000 Ly. Link to interactive sky chart.

To the east, one can see the dwarf galaxy NGC 5477, which is located about 20 million Ly from Earth

Dates:

This image was taken in late February 2022

Linked image(s):

Telescope & Mount:

Celestron 9.25″ EdgeHD with 0.7x focal reducer on a Celestron CGX-L mount. Guiding with Tecnosky 70/400 and an ASI290MM Mini.

Imaging:

Camera: ASI2600MC-Pro (bin 1×1)

Data:
Optolong L-Pro: 144x300s

Total integration time: 12h