
Images
M37
M37 is the brightest open cluster in the constellation of Auriga. Many of its 500 stars are fairly young bright blue stars, but the big star in the center (HD39183) is a yellow giant. M37 is photographed here during two consecutive full moon periods in December 2024 and January 2025 respectively.
M4
M4 is a globular cluster in the constellation Scorpius. It is located at a distance of 50,000 light years from Earth. During processing some interesting green stars stood out which appear to be RR Lyrae variable stars, often found in clusters. The intense green colour is an artefact of the way broadband images like these are taken.
NGC884, NGC869
A beautiful double cluster of NGC884 and NGC869 in the constellation Perseus. These objects are pretty bright and were already discovered by the ancient Greeks. Here captured using an OSC camera.
NGC7789
NGC 7789 is an open cluster in Cassiopeia that was discovered by Caroline Herschel in 1783. She was the sister of the well known William Herschel. When looking at this object visually the loops of stars and dark lanes give the impression of a rose, that’s what gave it the nickname Caroline’s Rose.