M 106


Messier 106 is a spiral galaxy in the constellation of Canes Venatici with a distance of about 24 million light years to Earth.


Recording Data

object Messier 106
date of recording
April 18, 19, 20 and 21, 2018
exposure 13.4 h, Luminance: 705x30", RGB each: 180x50"
telescope Celestron RASA F2.2
focal length 620mm
filter Baader Luminance 2", Baader R 2", Baader G 2", Baader B 2",
camera ZWO ASI1600mmc
guiding 250mm guide scope, MGEN
mount Celestron CGE pro
AstroBin click here

An active core

Messier 106 (also known as NGC 4258) is an intermediate spiral galaxy in the constellation Canes Venatici (hunting dogs) and was discovered in 1781 by Pierre Méchain. M106 is approximately 22 to 25 million light years from Earth and contains an active core classified as Type 2 Seyfert, indicating the presence of a central supermassive black hole. The central supermassive black hole was detected by radio wavelength observations of the rotation of a molecular gas disk orbiting the black hole within the inner light year. NGC 4217 (shown in the widefield image at the bottom of the photo) is a possible companion galaxy of Messier 106.

On relatively deep exposures, as in this picture, not only the larger accompanying galaxies of Messier 106 come to light, but also hundreds of other, extremely distant and faint galaxies, whose distance to Earth already amounts to billions of light years.

Baerenstein Observatory

private observatory
Marcel Drechsler






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