M52, open cluster
M52 contains several dozen bright stars, including some yellow and blue giants. Many of its stars belong to spectral types B and A, which are typical of young clusters.
General information
- Constellation
- Cassiopeia
- Category
- Clusters and stars
- Date
- 1 July 2021
Capture
- Total time
- 1h
- Subframes
- 100s (L: 12x) ISO 1250
- Gain / Offset
- 0 / 0
- Calibration
- 10 dark frames, 50 flat frames and 50 bias frames
Equipment
- Telescope
- TS102 f/7
- Camera
- modified Nikon D90
- Filters
- UV/IR
- Mount
- HEQ-5 Pro belt drive
- Guiding
- Guide scope 60mm f/4 + ASI224MC with PHD2
Processing and environment
- Processing
- Stacked with DSS, post-processed with StarTools, labelled with Ps
- Location
- l'Ampolla, Tarragona
- Sky
- Bortle 4