Jem's Birding & Ringing Exploits in the Eastern Province and elsewhere in Saudi Arabia
Pages
▼
12 June 2014
The Milky Way from Tabuk – Photos by Viv Wilson
Viv Wilson sent me a couple of beautiful images of the
Milky Way he had taken in Tabuk recently and has kindly allowed me to use them
on my website. Please be aware the copyright of these photos belongs to Viv
Wilson. Viv said the photo was taken towards the south and the black lines are dust lines. There is a meteor in each photo as well as a couple of satellites. The photos contain Scorpio, Sagittarius and Aquila and were taken with a Canon 6D and a Samyang 14mm 2.8 lens at 30 seconds with ISO8000. One of the good things about living in Saudi Arabia is light pollution is
low as the landmass is large and population relatively small, which allows good
views of the stars. The Milky Way is a large spiral galaxy with the Sun and its
planets including Earth lying in a quiet part of the galaxy, about half way out
from the centre. The Milky Way spiral rotates once every 230 million years and
is made up of at least 100 billion stars, as well as dust and gas. It is so big
that light takes 100 000 years to cross from one side to the other. Unlike a regular spiral, the
Milky Way is a barred spiral and contains a bar across its center region, and
has two major arms, two significant minor arms, as well as two smaller spurs.
One of the spurs, known as the Orion Arm, contains the sun and the solar
system. The Orion arm is located between two major arms, Perseus and
Sagittarius. Tucked inside the very center of
the galaxy, like most galaxys is an enormous black hole that consumes whatever
stars it can. The Milky Way contains over 200 billion stars, and enough dust
and gas to make billions more with more than half the stars found in the Milky
Way being older than the 4.5 billion year old sun.