Celestial hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  M 20  ·  M 21  ·  NGC 6514  ·  NGC 6531  ·  Trifid nebula
M21 & M20, 



    
        

            rna
M21 & M20
Powered byPixInsight

M21 & M20

M21 & M20, 



    
        

            rna
M21 & M20
Powered byPixInsight

M21 & M20

Acquisition details

Dates:
April 30, 2017
Frames:
8×300(40′)
Integration:
40′
Avg. Moon age:
4.58 days
Avg. Moon phase:
21.91%

Basic astrometry details

Astrometry.net job: 1559748

RA center: 18h03m09s.6

DEC center: -22°4828

Pixel scale: 2.621 arcsec/pixel

Orientation: 0.614 degrees

Field radius: 1.050 degrees

Resolution: 1728x2309

File size: 2.4 MB

Locations: 自宅ベランダ, Yokohama, Kanagawa, Japan

Comments

Sky plot

Sky plot

Histogram

M21 & M20, 



    
        

            rna