Hemisphere:  Southern  ·  Constellation: Cetus (Cet)  ·  Contains:  NGC 247
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NGC 247, 



    
        

            Geoff
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NGC 247

Getting plate-solving status, please wait...
NGC 247, 



    
        

            Geoff
Powered byPixInsight

NGC 247

Imaging Telescopes Or Lenses
Plane Wave Instruments CDK 12.5"
Imaging Cameras
Finger Lakes Instruments Proline 16803
Mounts
AP900GTO
Filters
Astronomik L R G B Series II
Software
MaximDL · PixInsight
Guiding Cameras
Starlight Xpress Lodestar guide camera

Acquisition details

Dates:
Oct. 26, 2019
Frames:
82x600" (13h 40')
Integration:
13h 40'
Avg. Moon age:
27.64 days
Avg. Moon phase:
3.99%

RA center: 00h47m05s.485

DEC center: -20°4033.90

Pixel scale: 0.725 arcsec/pixel

Orientation: 177.972 degrees

Field radius: 0.439 degrees

More info:Open 

Resolution: 3090x3075

Locations: Wiruna Dark Sky Site, Ilford, NSW, Australia

Data source: Traveller

Description

NGC 247 is one of several galaxies that is gravitationally bound to the Silver Coin Galaxy NGC 253. It is an intermediate spiral galaxy (although it is sometimes classified as a dwarf spiral galaxy) about 11.1 Mly away in the constellation Cetus. The galaxy displays an obvious void on the north side of its spiral disk, but the exact nature and cause of this feature is not clear. The void contains some older, redder stars but no younger, bluer stars.

The string of four galaxies just below and right of NGC 247 is known as Burbidge's Chain. These galaxies are about 300 million light-years distant. Deep images reveal that the two bottom-most galaxies in the chain are apparently interacting, joined by a faint bridge of material. This bridge can just be seen in this photograph.

Comments

Revisions

  • NGC 247, 



    
        

            Geoff
    Original
  • NGC 247, 



    
        

            Geoff
    C
  • Final
    NGC 247, 



    
        

            Geoff
    D

C

Description: Reduced flare from out of field star. Changed framing

Uploaded: ...

D

Description: Ha added

Uploaded: ...

Sky plot

Sky plot

Histogram

NGC 247, 



    
        

            Geoff