Hemisphere:  Northern  ·  Contains:  M 99  ·  NGC 4254  ·  Pin-wheel nebula
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M99  - the coma pinwheel, 


            Andrew Lockwood
M99  - the coma pinwheel
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M99 - the coma pinwheel

Technical card

Imaging telescopes or lenses: ASA 16N

Imaging cameras: QSI 683wsg-8

Mounts: ASA Astrosysteme ASA DDM85

Guiding telescopes or lenses: ASA 16N

Focal reducers: ASA Astrosysteme ASA 3" Wynne Reducer Corrector 0,95x

Software: PixInsight

Filters: Astrodon 31mm Blue  ·  Astrodon 31mm Red  ·  Astrodon 31mm Ha 5nm

Dates:March 2, 2019

Frames: 192x300"

Integration: 16.0 hours

Avg. Moon age: 25.82 days

Avg. Moon phase: 14.81%

Basic astrometry details

Astrometry.net job: 2561148

RA center: 12h 18' 44"

DEC center: +14° 25' 8"

Pixel scale: 0.380 arcsec/pixel

Orientation: 3.677 degrees

Field radius: 0.394 degrees

Resolution: 5988x4464

Locations: home, perth, western australia, Australia

Data source: Backyard


55 Million light years away, in the Virgo cluster of galaxies is the Coma Pinwheel. Although similar in dimensions to the Milky Way it appears to only have 15% of the mass of our home galaxy.



Andrew Lockwood
License: None (All rights reserved)

Sky plot

Sky plot


M99  - the coma pinwheel, 


            Andrew Lockwood

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