I was trying to see one of the most beautiful constellations, Orion ('Mrigsiraa', meaning "head of deer" in Hindi), for last few days. I failed to see it because I was not brave enough to face the below freezing temperatures of Edmonton, Canada. Nevertheless, I saw it few days ago, thanks to my tenacity, and I arranged a photograph too (with the help of Jerry, one of my colleagues). I was curious to know about it because of news that discusses Betelgeuse, one of the stars in the constellation (Photograph below). This photograph was taken from the city of Edmonton on 2nd February 2011 around 9 PM. The star is marked in photograph for easy identification . The next photograph is to help you identify the constellation in the evening sky.
The Orion as taken from the city of Edmonton on 2 February 2011 around 9 PM (Click on the picture to see enlarged for better viewing.)
Let us come back to the news which was all about the life cycle of this star. This star can be recognized as the one which is brightest and a little red in color. Betelgeuse (Ardra, meaning moist in Hindi) is in its last stage of life or you can even say that it has already died and what we see is probably the light which it emitted around 500 years ago just before it died. Some scientists say that the light generated due to this supernova explosion will appear as a second sun and there would be light in the sky even in the absence of the sun. I do not want to go into scientific details because it has been already discussed at many forums.
In summary, the discussion mainly deals with the scientific facts and evidences about this star's stage. On one hand, many people relates this phenomenon with the end-of-the-world-2012 story. On the other, there are also believers who think the story of Star Wars coming true, which fantasizes the presence of two suns in the sky.
I think I will not be able to tell you more than what is already available through various sources, but I will definitely advice the reader to witness the beauty of the this constellation whenever you get the time, if not with the help of a telescope then definitely with your naked eye.
This would be a great fun for those who are fascinated by what lies beyond our insignificant (in terms of size) earth.
To conclude, I will add few basic facts about this phenomenon:
1) The star itself is roughly 18 to 19 times the mass of the Sun, with a brightness of 100,000 times greater than the Sun itself.
2) Betelgeuse, the tenth brightest star in terms of apparent magnitude--the brightest stars one can see from earth is indeed going to transform from a red super-giant into a supernova explosion.
3) Claims about the second sun seems to be a myth because its believed that the intensity of the supernova will be less than the 1/100000th of the brightness of the SUN.
So have fun and enjoy watching it.... and do put in your comments to lets me know your experiences.
Following tips can be helpful in watching it
1) If you are in Northern hemisphere, by looking south east after the sunset, you can see it just above the horizon It will look like picture 1 above.
2) If you are in southern hemisphere, just see above your head little towards south.
3) Take help from the pictures and images shown above.
People more comfortable in Hindi can read more about it among other places here or here...