M90 - Spiral Galaxy in Virgo


M 90 is a spiral galaxy that lies approximately 60 million light years away in the constellation of Virgo. It is one of eight galaxies that were catalogued by Charles Messier in 1781. It is part of the Virgo cluster of galaxies and appears to have lost much of its interstellar matter as a result of earlier interaction with other galaxies in the cluster. As a result, its spiral arms are not well-defined. The arms also have very little new star formation taking place at this time.

The irregular companion galaxy is IC 3583.


Telescope: APM 152mm refractor
Mount: iOpron CEM60- guided w/Orion SSAG pro on 300mm Komura lens
Camera: Modified Canon 650D (T4i); raw capture; ISO 1600
Exposures: 16 @ 360 sec.

Camera was focused using a Bahtinov mask in live view. Images were aligned and combined in ImagesPlus. The composite image was adjusted in Photoshop

Shot from my backyard observatory in southeast Minnesota on 5/4-5/16.

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