M56 – Globular Cluster
M56, also known as NGC 6779, is a globular cluster composed of a population of very old stars with a very low metal content, indicating that they are among the most primitive stars in the Milky Way. The cluster orbits our galaxy along a highly elliptical path.
General information
- Constellation
- Lyra
- Category
- Clusters and stars
- Date
- 1 July 2021
Capture
- Total time
- 16min 40s
- Subframes
- 100s (light frames: 10x) 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
- PHD2, Guide scope 60mm/f4 + ASI224MC
Processing and environment
- Processing
- Stacked with DSS, post-processed with StarTools and etiquetatge with Photoshop
- Acquisition
- Temporitzador
- Location
- l'Ampolla, Tarragona
- Sky
- Bortle 4