Messier 31 is about 2.5 million light years distant and is the closest major galaxy to our own Milky Way galaxy. It is a spectacular example of a spiral galaxy seen slightly edge-on. Its spiral arms and dust lanes are clearly visible in this 4.8 hour image.
Messier 31 can easily be seen with binoculars under moderately dark skies and can also bee seen unaided under dark skies. On the night I took this image I could easily see Messier 31 as a faint smudge in the dark desert sky.
The photons for this image were captured on the night of August 23-24, 2020 at the San Diego Astronomy Association site at Teirra del Sol, San Diego County, California. This image is a stacked combination of 95 x 180 second exposures and the camera was the ZWO ASI2600MC-Pro color camera. The subexposures were calibrated, aligned and stacked with PixInsight. Post-processing image enhancement was performed with PixInsight and Photoshop CC.
Thanks for taking a look. Click on the image below to see a larger version. Also, click on this link to go to my Astrobin page to see more details regarding the equipment used to take this image.