Celestial hemisphere:  Northern  ·  Constellation: Draco (Dra)  ·  Contains:  NGC 4236  ·  The star 4Dra  ·  The star 6Dra  ·  The star κDra
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NGC 4236 - Wide Field (mouse hover), 



    
        

            gigiastro
NGC 4236 - Wide Field (mouse hover), 



    
        

            gigiastro

NGC 4236 - Wide Field (mouse hover)

Getting plate-solving status, please wait...
NGC 4236 - Wide Field (mouse hover), 



    
        

            gigiastro
NGC 4236 - Wide Field (mouse hover), 



    
        

            gigiastro

NGC 4236 - Wide Field (mouse hover)

Equipment

Acquisition details

Dates:
Feb. 27, 2022
Frames:
196×30(1h 38′) ISO800
Integration:
1h 38′
Darks:
10
Flats:
30
Flat darks:
10
Bias:
80
Avg. Moon age:
26.02 days
Avg. Moon phase:
13.29%
Bortle Dark-Sky Scale:
7.00
Mean SQM:
18.48
Temperature:
5.00

Basic astrometry details

Astrometry.net job: 5593960

RA center: 12h16m26s.6

DEC center: +69°1727

Pixel scale: 5.135 arcsec/pixel

Orientation: 0.043 degrees

Field radius: 1.951 degrees

Resolution: 2265x1533

File size: 1.6 MB

Locations: Home, Mestre, Venezia, Italy

Data source: Backyard

Description

«NGC 4236 is a barred spiral galaxy in Draco.(...)member of the M81 Group(...)» 
 (From Wikipedia)
«(...)having a very low surface brightness, this galaxy is a challenging object.
(...)According to recent studies, NGC 4236 may also be the largest member
of its own small group, also including UGC 6456 and DDO 165.»
(From SkySafari Pro)

Mouseover:
I am fascinated by that small "chain" of galaxies (in POSS2: IRAS 12120 + 6838 (GGroup)):
from east to west: two (interacting) galaxies, one star, one Gx defined QSO.
Their distance from us amounts to over 800 million light years.
They appear, with a vague morphological hint, in the picture made from a 135mm lens !!

Samyang 135mm f/2 set to f/2
Drizzle x2 integration-->cropping-resampling

Comments

Revisions

  • Final
    NGC 4236 - Wide Field (mouse hover), 



    
        

            gigiastro
    Original
  • NGC 4236 - Wide Field (mouse hover), 



    
        

            gigiastro
    B

B

Description: Annotated

Uploaded: ...

Sky plot

Sky plot

Histogram

NGC 4236 - Wide Field (mouse hover), 



    
        

            gigiastro