Black Swan Cluster

Captured by Md. Shahadat Hossain Shahal

Astrophotography information

Astrophotography Md. Shahadat Hossain Shahal
Observing location Saint martin (21 North, 92  East)
Exposure time 108 Seconds
Telescope Unistellar eQuinox 1 (Ashwin 1 )
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
Image processing method 1. Stack
2. Background extraction
3. Plate solve
4. SPCC
5. Star removal
5. Stretching
7. Star re-composition
8. Denoising
9. Sharpening
10. HDR processing for galaxy core.
11. Masked stretching.

Astrophysical information

Object type Open star cluster
Constellation Sagittarius
Distance 4,200 ly
Angular size 9.8 arcminutes
Physical size 26.2 ly
Apparent magnitude 7.5