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Contains:  NGC 2516
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NGC 2516 in Carina, 





    
        

            Paulo Cacella
NGC 2516 in Carina

NGC 2516 in Carina

Technical card

Imaging telescope or lens:William Optics FLT98

Imaging camera:ZWO ASI 1600MM-Cooled ASI1600

Mount:Sky-Watcher AZEQ6-GT

Guiding telescope or lens:Orion 400mm F/4

Filter:Astrodon RGB

Resolution: 4656x3520

Dates:Jan. 31, 2019

Frames: 5x120"

Integration: 0.2 hours

Avg. Moon age: 25.59 days

Avg. Moon phase: 16.57%

Astrometry.net job: 2498183

RA center: 7h 57' 59"

DEC center: -60° 41' 9"

Pixel scale: 1.270 arcsec/pixel

Orientation: 86.447 degrees

Field radius: 1.029

Locations: DogsHeaven Observatory, Brasilia, DF, Brazil

Data source: Backyard

Description

This bright cluster itself is easily visible with the naked eye as a hazy patch, but is resolvable into stars using binoculars. It contains two 5th magnitude red giant stars and three main visual double stars: HJ 4027, HJ 4031 and I 29. A small telescope would be required to split the double stars, which are all pairs of 8-9 magnitude and 1-10 arcseconds separation.[5]

NGC 2516 and the recently discovered nearby star cluster Mamajek 2 in Ophiuchus have similar age and metallicity. Recently, kinematic evidence was presented by E. Jilinski and coauthors that suggests that these two stellar groups may have formed in the same star-forming complex some 135 million years ago

Comments

Author

cacella
Paulo Cacella
License: None (All rights reserved)
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NGC 2516 in Carina, 





    
        

            Paulo Cacella