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Contains:  IC 3583, M 90, NGC 4569
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Messier's 90th, 


            Andrew Lockwood
Messier's 90th
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Messier's 90th

Technical card

Imaging telescope or lens:ASA 16N

Imaging camera:QSI 683wsg-8

Mount:ASA Astrosysteme ASA DDM85

Guiding telescope or lens:ASA 16N

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


Filters:Astrodon 31mm Ha 5nmAstrodon 31mm RedAstrodon 31mm Blue

Dates:April 8, 2019

Frames: 196x300"

Integration: 16.3 hours

Avg. Moon age: 3.00 days

Avg. Moon phase: 9.85%

Basic astrometry details job: 2654023

RA center: 12h 36' 50"

DEC center: +13° 7' 48"

Pixel scale: 0.380 arcsec/pixel

Orientation: 93.685 degrees

Field radius: 0.249 degrees

Resolution: 3635x3010

Locations: home, perth, western australia, Australia

Data source: Backyard


M90 is one of the prototypes for a type of galaxy called an anemic galaxy. In the middle of the Virgo galaxy cluster, its high speed through the dense intergalactic medium has stripped the galaxy of much of the interstellar medium needed for star formation. The lack of ongoing star formation has resulted in the unusually smooth looking spiral arms, and long tails of ionised gas. Also unusually, the spectrum of this galaxy appears to be blueshifted even though it is 60 million light years away.



Andrew Lockwood
License: None (All rights reserved)

Sky plot

Sky plot


Messier's 90th, 


            Andrew Lockwood

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