Hemisphere:  Northern  ·  Constellation: Cancer (Cnc)  ·  Contains:  38 Cnc  ·  39 Cnc  ·  40 Cnc  ·  41 eps Cnc  ·  42 Cnc  ·  Beehive  ·  Beehive cluster  ·  IC2388  ·  IC2390  ·  M 44  ·  M44  ·  NGC 2632  ·  NGC2624  ·  NGC2625  ·  NGC2637  ·  NGC2643  ·  NGC2647  ·  Praesepe  ·  Praesepe Cluster
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M44 - The Praesepe (Open Cluster), 



    
        

            Luís Ramalho
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Getting plate-solving status, please wait...
M44 - The Praesepe (Open Cluster), 



    
        

            Luís Ramalho
Powered byPixInsight

Technical card

Imaging telescopes or lenses: Takahashi TOA-130F

Imaging cameras: Atik 11000

Mounts: Software Bisque Paramount ME

Guiding telescopes or lenses: Takahashi FS 78

Guiding cameras: Atik 16IC

Focal reducers: Takahashi Field Flattener

Software: ACDSee Ultimate 8  ·  Difraction limited MaximDL 6  ·  Adobe Photoshop CS5

Filters: Baader Planetarium Baader Uv/IR-Cut / L 50.8mm

Accessory: Atik EFW2 filter wheel


Dates:March 27, 2019

Frames: 12x120" (24')

Integration: 24'

Avg. Moon age: 21.50 days

Avg. Moon phase: 56.83%


Astrometry.net job: 4047229

RA center: 8h 40' 9"

DEC center: +19° 55' 26"

Pixel scale: 5.421 arcsec/pixel

Orientation: -179.908 degrees

Field radius: 1.086 degrees


Resolution: 1200x800

Data source: Backyard

Description

M44, The Praesepe, is an open star cluster in the constellation Cancer. It is one of the closest clusters to the solar system. It has been known since antiquity. Galileo was the first to resolve the brightest stars in the cluster. Charles Messier integrated this object in his catalog in 1769. The radius of the M44 core is about 11.4 light years. It contains at least 1000 gravitationally linked stars. The approximate age of this cluster is around 600 million years.

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M44 - The Praesepe (Open Cluster), 



    
        

            Luís Ramalho