Saw this article in BBC's "Sky at night" magazine and decided to try my hand at capturing a similar photo. Here is my first attempt with Sirius, the brightest star in the night sky. 1/2 second exposures were taken every 60 secs at ISO400 on Nikon Z6 using a defocused 300mm lens at f/5.6. Usually, one of the toughest tasks with astrophotography is to find good focus and maintain it. For this kind of picture, you actually want to be not in focus so a star is seen as a big disc and not a point.

While taking this picture, Sirius was quite high up in the sky. Have to repeat this when Sirius is closer to the horizon to get some help from the atmospheric disturbances to add to the drama of color changes.