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Contains:  NGC 4302, NGC 4298, NGC 4262, Pin-wheel nebula, M 99, NGC 4254, NGC 4186, M 98, NGC 4192, The star 6Com
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M98 & M99 Two-Panel Mosaic, 


            Scott Davis
M98 & M99 Two-Panel Mosaic

M98 & M99 Two-Panel Mosaic

Technical card

Resolution: 5044x2000

Dates:May 9, 2015May 16, 2015

Frames:One-Shot Color: 70x300" ISO1600

Integration: 5.8 hours

Darks: ~25

Flats: ~40

Flat darks: ~40

Bias: ~40

Avg. Moon age: 23.90 days

Avg. Moon phase: 37.47%

Bortle Dark-Sky Scale: 4.00 job: 639480

RA center: 184.463 degrees

DEC center: 14.700 degrees

Pixel scale: 1.977 arcsec/pixel

Orientation: 176.626 degrees

Field radius: 1.490 degrees

Locations: Eastman Lake Recreation Area, Raymond, CA, United States


When initially planning for this shot, I realized that I could fit both M98 and M99 in the same field of view with a single shot. Upon further consideration, however, I discovered the two additional galaxies that were worth photographing, and decided to do a two-panel mosaic.

This final "ultra wide screen" panorama of this area of the Coma Berenices constellation includes:

Spiral Galaxy M98 (Far Right)
Spiral Galaxy M99 (Middle Bottom)
Spiral Galaxy NGC4298 and Edge-On Spiral NGC4302 (Far Left)

Looking at this field of view at higher magnification reveals countless additional galaxies as well. Enjoy!



Scott Davis
License: Attribution-NonCommercial-NoDerivs Creative Commons

Sky plot

Sky plot


M98 & M99 Two-Panel Mosaic, 


            Scott Davis