Mesarthim (Gamma [γ] Arietis)

Posted by ayiomamitis
on Sunday, December 13, 2009

by Anthony Ayiomamitis

 

An impressive and tight binary system is Mesarthim (gamma Ari / γ-Ari) which shine at mag 3.88 and whose very close binary member at mag 4.8. The former has a luminosity 49.5 times that of the Sun and is approximately 204 light-years away. Technical Details: Date: Nov 21, 2009 @ 21:25 - 22:10 UT+2 Location: Athens, Greece (38.2997° N, 23.7430° E) Equipment: AP 160/f7.5 Starfire EDF, AP 1200GTO GEM, SBIG ST-2000XM, SBIG CFW-8A, SBIG LRGB + IR-block Integrations: LRGB @ 10:10:10:10 using 1-/2-min subs, Binning: 1x1, Image Scale: 1.27" per pixel, +0.0° C Further Details: http://www.perseus.gr/Astro-Star-Brightest-Ari-Gamma.htm
Tags: Star
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