M106 SPIRAL GALAXY

M106 also known as NGC4258 Is a galaxy in the constellation Canes Venatici. It is about 25 million light years away, and approximately 130,000 light years across. The unusual central glow makes M106 one of the closest examples of the Seyfert class of galaxies where vast amounts of glowing gas are thought to be falling into a central massive black hole. M106 has a water vapor megamaser (the equivalent of a laser operating in microwave instead of visible light and on a galactic scale) that is seen by the 22-GHz line of ortho-H2O that evidences dense and warm molecular gas. It is one of the largest and brightest nearby galaxies, similar in size and luminosity to the Andromeda Galaxy.M106 has also played an important role in calibrating the cosmic distance ladder. Before, Cepheid variables from other galaxies cannot be used to measure distances since they cover ranges of metallicities different from the Milky Way's.
designed by LluĂ­s Romero Ventura
The Earth astrosirius@astrosirius.org

M94 SPIRAL GALAY & OUTER RING

Place: Ager-Lleida-Spain SQM: 21.7 Dates: Feb 2017 to March 2017 Details Telescope: GSO RC14 Truss Mount: ASA DDM85 Camera: Moravian G2-8300 Focuser: Feather Touch 3 Kit Boss II Flattener: TS 2.5 Filters: Astrodon LRGB Gen2 I-Series True-Balance Exposure: L: 27x900 sec bin1 RGB: 42:32:29x900 sec bin1 H-alpha: 19x1800 sec bin1 Processing: Pixinsight & Photoshop CC Software: MaximDL, Sequence,Autoslew Control Remote: Talon6

Galaxies

& Beyond