Contains: NGC 4657, NGC 4656, NGC 4631, NGC 4627

Image of the day 03/16/2016

Getting plate-solving status, please wait...

The Whale (NGC 4631) and the Hockey Stick (NGC 4656)

Technical card

Resolution: 3292x2478

Dates: March 8, 2016March 9, 2016

Baader Blue 36mm: 8x600" -10C bin 1x1
Baader Green 36mm: 9x600" -10C bin 1x1
Baader Luminance 36mm: 14x600" -10C bin 1x1
Baader Red 36mm: 9x600" -10C bin 1x1

Integration: 6.7 hours

Avg. Moon age: 14.67 days

Avg. Moon phase: 0.38%

Bortle Dark-Sky Scale: 5.00 job: 1002585

RA center: 190.693 degrees

DEC center: 32.332 degrees

Pixel scale: 0.930 arcsec/pixel

Orientation: -179.583 degrees

Field radius: 0.532 degrees


Version A is my initial cut at this on my laptop.
Version B is a reprocessing of the data on my desktop and is annotated.
Version C is the desktop reprocess without the annotation.




Sky plot

Sky plot


The Whale (NGC 4631) and the Hockey Stick (NGC 4656), Madratter