Hemisphere:  Northern  ·  Constellation: Coma Berenices (Com)  ·  Contains:  Coma Pinwheel  ·  M 100  ·  M 98  ·  M 99  ·  NGC 4192  ·  NGC 4254  ·  NGC 4298  ·  NGC 4302  ·  NGC 4312  ·  NGC 4321  ·  The star 6Com  ·  Virgo Cluster Pinwheel
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Galaxies M 100 - M 99 - M 98 in Coma Berenices, 



    
        

            gigiastro
Galaxies M 100 - M 99 - M 98 in Coma Berenices, 



    
        

            gigiastro

Galaxies M 100 - M 99 - M 98 in Coma Berenices

Getting plate-solving status, please wait...
Galaxies M 100 - M 99 - M 98 in Coma Berenices, 



    
        

            gigiastro
Galaxies M 100 - M 99 - M 98 in Coma Berenices, 



    
        

            gigiastro

Galaxies M 100 - M 99 - M 98 in Coma Berenices

Technical card

Imaging telescopes or lenses: Samyang 135mm f/2

Imaging cameras: Canon EOS 60Da

Mounts: AstroTrac TT 320

Software: PixInsight  ·  Noel Carboni's AstroFlat Pro  ·  Elements Photoshop


Dates:March 7, 2021

Frames: 430x30" (3h 35') ISO800

Integration: 3h 35'

Darks: 10

Flats: 30

Flat darks: 10

Bias: 80

Avg. Moon age: 23.65 days

Avg. Moon phase: 34.29%

Bortle Dark-Sky Scale: 8.00

Mean SQM: 18.38

Temperature: 1.50


Basic astrometry details

Astrometry.net job: 4313679

RA center: 12h 18' 50"

DEC center: +15° 8' 34"

Pixel scale: 3.421 arcsec/pixel

Orientation: 358.877 degrees

Field radius: 1.700 degrees


Resolution: 3118x1754

Locations: Home, Mestre, Venezia, Italy

Data source: Backyard

Description

The galaxies M 100 - M 99 - M 98 are members of the Virgo cluster.

M 100 is a Starburst galaxy.

Messier 98 is a member of the Virgo Cluster,

which is a large cluster of galaxies, part of the local supercluster.

About 750 million years ago, it may have interacted with the large spiral galaxy Messier 99.

These are now separated by 1,300,000 ly

(from Wikipedia)

Samyang 135mm f/2 set to f/2

Drizzle x2 integration-->cropping

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    Galaxies M 100 - M 99 - M 98 in Coma Berenices, 



    
        

            gigiastro
    Original
  • Galaxies M 100 - M 99 - M 98 in Coma Berenices, 



    
        

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Description: Annotated

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Galaxies M 100 - M 99 - M 98 in Coma Berenices, 



    
        

            gigiastro