Posts Tagged ‘Milky Way’

M15

Posted: September 1, 2013 in Astronomy
Tags: , , ,

M15 (aka NGC7078) is a globular cluster seen in the constellation Pegasus. At an estimated 12 billion years old it is the oldest known globular cluster in the Milky Way. It is also one of the most densely packed and has more than 100,000 stars contained within it. It is 33,600 light years from earth and has a diameter of 175 light years.

M15b

M15c

M15

M15b2

These images were taken using the NASA Harvard telescope and the Bradford Robotic telescope

TGa

TGc

TGb

The Triangulum Galaxy (aka M33/ NGC 598) was probably first described by Hodiema in 1654. It is 3,000,000 light years from Earth and contains about 40 billion stars. It has a relationship with both the Andromeda galaxy and our own Milky Way as it is moving towards the Andromeda galaxy. Astronomers have tried to model the likely outcome of these three galaxies converging on each other, although it seems uncertain as to whether Triangulum will meet with Andromeda before or after Andromeda meets the Milky Way.

Photos taken using the Bradford Robotic telescope