Ich habe 4 Stunden lang auf einem Campingplatz in Arizona Licht von der Andromeda-Galaxie gesammelt (Details und Bonusbilder in den Kommentaren).

**Description**

Even with a telescope designed to capture as much light as possible, the number of photons making their way from the edges of a distant galaxy to any given pixel on the camera’s sensor each second can be counted on one hand. In order to get a detailed image, it requires hours of exposure time. This video is a time-lapse of 4 hours of exposure time through a 6″ Newtonian telescope pointed at our nearest spiral galaxy neighbor.

The Andromeda Galaxy is ~2.5 million light years away and home to around a trillion stars. The younger hotter stars live near the edges giving that part of the galaxy its blue-ish tint. The regions closer to the center don’t have as many new stars forming, so only the colder longer-living stars remain, which have a more red-ish color.

Images taken over a few nights from a campground overlooking Wickenburg, AZ.

**Bonus Pics**

Full resolution horizontal version including another 4 hours of data from the edges: https://i.imgur.com/iXzSyCc.jpeg

The rig overlooking the nearby town at night: https://i.imgur.com/7wwZkAu.jpeg

Rig during the day: https://i.imgur.com/GbO3kD5.jpeg

**The nerdy details**

6″ Newt on Celestron AVX mount

ASI2600MC Pro camera

Guiding with ASI120MM and ASIAIR

Bortle 4 sky

Each video key frame stacked in DSS and light pollution removed in PixInsight, final image processing in PixInsight