Contains:  M 35, NGC 2168, NGC 2158

Image of the day 03/17/2018

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M35 and NGC2158, 





    
        

            Boris Emchenko
M35 and NGC2158

Technical card

Resolution: 3354x2529

Dates:Dec. 27, 2017Dec. 28, 2017Jan. 27, 2018Feb. 1, 2018

Frames:
Baader B 36mm: 18x120" bin 1x1
Baader G 36mm: 20x120" bin 1x1
Baader L 36mm: 29x120" -30C bin 1x1
Baader R 36mm: 23x120" -30C bin 1x1

Integration: 3.0 hours

Avg. Moon age: 11.01 days

Avg. Moon phase: 77.62%

Astrometry.net job: 1960473

RA center: 92.165 degrees

DEC center: 24.286 degrees

Pixel scale: 1.112 arcsec/pixel

Orientation: 1.050 degrees

Field radius: 0.648 degrees

Locations: Astromania Vedrus remote observatory, Krasnodar, Russian Federation

Data source: Unknown

Description

M35 is my second open cluster imaging during moon (prev. was M34). So my conclusion: open clusters are good targets during full moon. Will continue, stay tuned :)

M35 is located at a distance 2800 ly and has estimated age about 110 million years. It is relatively diffuse, with about 2500 stars spread out over a volume 30 light years across.
The hottest main sequence stars in the cluster have the spectral classification B3. M35 also contains more evolved stars, including several orange and yellow giants. The cluster is approaching us at 5 km/s.

Another open cluster, once considered as a globular cluster, NGC 2158, lies about 15 arc minutes to the southwest of M35. NGC 2158 is considerably older (2 billion years old) and more than five times more distant (~12000 ly). It is also more compact and contains more stars. Having also low metalicity it is suggested to be a member of the old disk population.

Comments

Author

BorisE
Boris Emchenko
License: Attribution-ShareAlike Creative Commons
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Revisions

    M35 and NGC2158, 





    
        

            Boris Emchenko
    Original
  • Final
    M35 and NGC2158, 





    
        

            Boris Emchenko
    B

B

Less saturation

Sky plot

Sky plot

Histogram

M35 and NGC2158, 





    
        

            Boris Emchenko