Antannae galaxies

Captured and processed by Md Shahadat Hossain Shahal

Astrophotography information

Astrophotography Md Shahadat Hossain Shahal
Observing location Bandarban, Lama (21.740447,92.168846)
Exposure time 90 min.
Telescope Unistellar eQuinox 1 (Ashvin 1), 114 / 450 mm
Camera Sony IMX224, 1.27 Mpx
Field of view (resolution) 0.61° × 0.46° (1.72 arcsec)
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 Spiral Galaxies
Constellation Corvus
Distance 65 Mly
Angular size 0.08° × 0.05
Physical size NGC 4038 – 634 kly

NGC 4039-258 kly 

Apparent magnitude 10.5 and 11.0