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New variable star discovered by Filip Novoselnik |
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Club News
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Written by Ivica Skokić
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Thursday, 26 February 2009 09:04 |
 Months of dedicated work finally paid off. On photographs taken with a Mallorca Observatory telescopes, our member Filip Novoselnik from Belišće found a new variable star in the constellation Aries. The star 2MASS 03234384+2234186 (one of it's many designations in different catalogs) shines at 16.5 magnitude and has an amplitude of 0.6 magnitude with a period of 6 hours. Judging by the light curve shape, Filip presumes it is an EW type of eclipsing binary, like W Ursae Majoris, with two ellipsoidal components practically in contact. You can find the discovery paper here.
Few months ago, Filip started searching for variable stars on old photometric photographs taken with a 30-centimeter Meade LX200 telescope and SBIG STL-1001E CCD camera. He analized the photographs with MuniWin software and found around 15 potential varaibles, among which this star was hiding.
Detailed photometry and communication with AAVSO confirmed that it was a previously unknown variable star. Although the star itself was cataloged many times before, it's variable nature remained hidden but not to the keen eyes of our Filip.
Filip is an amateur astronomer for many years now, dealing especially with astrometry and photometry of asteroids, he cooperates with observatories in Višnjan, La Sagra and Mallorca and this discovery is not a coincidence, rather a result of a hard work. We wish him many, many more astronomical discoveries in the future!
Congratulations!
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Last Updated on Monday, 23 March 2009 07:31 |
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