07  July  2017
     M33, the Triangulum galaxy


By      Andrei Bacila

The Triangulum Galaxy is a spiral galaxy located on the night sky in the constellation Triangulum. It was probably discovered in the 17th century
by astronomer Giovanni Battista Hodiern, describing it as a cloud-like nebulosity. The Triangulum galaxy is one of the most distant objects in the night sky that under very good seeing conditions can be spotted with the naked eye. It is the 3rd largest member of the local group of galaxies (after the Andromeda galaxy and our own Milky Way)
with a size of aproximately 60.000 lyght years and housing some 40 billion stars. Lying at about 3 milion light years from our own galaxy,
 the Triangulum galaxy is thought to be a satellite of the Andromeda galaxy due their interactions and proximity to one another.
In 2004, astronomers found evidence of some hydrogen gas structures linking the two galaxies, then 1 year later,
 they were able to estimate the motion of the Triangulum galaxy and concluded that it is moving towards the Andromeda galaxy.
 And some technical data about this picture: it is an LRGB composition with an integration time of almost 10 hours,
 shot through the course of 3 nights (Luminosity in August and color data in October).
The equipment used was: Mount: SW AZ-EQ6 GT Scope: SW ED80 with TeleVue TRF-2008 Camera: Atik Cameras 460ex Mono with EFW2 and Bader LRGB 1.25” filters. 16


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