#123 | ast05 – Finding KIC 9832227

Hi guys!

I am a rush for this post, Bach has linked me this article about two merging stars in 2022 that could create a “Red Nova”: link. It can create an explosion so big that it could be visible without a telescope. The object can also be so bright that it could last 6 months and be as bright as Polaris and Sirius in the night sky. It is hard to make a precise prediction of the explosion but we eventually know the year when it will occur.

If I want to know exactly where to look in the sky to see this explosion, I need to know how to find it first. The first thing I need to do is to search for KIC 9832227 in the sky with Stellarium. An option will be possible to put an equatorial grid in the sky and find the exact coordinates of the binary stars. Of course, you need to encode your position to have the exact starmap.

In this case, KIC 9832227 coordinates are in 19h29m Right Ascension and +46°37’19.9″ Declination.
You can now set your telescope at these coordinates to look at the right spot of the sky.

link: http://www.astronomy.com/news/2017/01/2022-red-nova

What did I learn?

  • Localisation of a star with Stellarium.
  • Use the Stellarium equatorial grid and report the RA and declination.

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