Ptolemy’s Cluster

Captured by Md. Shahadat Hossain Shahal

Astrophotography information

Astrophotography Md. Shahadat Hossain Shahal | Sohanur Rahman
Observing location Saint Martin (21 North 92 East) | Pabna (24 North 89 East)
Observation date 10 March, 2024 | 15 May, 2024
Exposure time 108 Seconds | 32 Minutes
Telescope Unistellar eQuinox 1 (Ashwin 1 | Ashwin 2)
Camera Sony IMX224, 1.27 Mpx
Field of view (resolution) 0.61° x 0.46°  (1.72 arcsec/pixel)
Image processing Md. Shahadat Hossain Shahal

Astrophysical information

Object type Open Star Cluster
Constellation Scorpius
Distance ~ 980 ly
Angular size ~ 80 arcminutes
Physical size ~ 25 ly
Apparent magnitude 3.3