Rare occultation of chi-Leo (4.7) by Mars (1.7)
Taken by Shiraishi on October 19, 2015 @ Kumagaya-shi, Saitama, Japan
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Mars (1.7 mag) occulted chi-Leo (4.7 mag) in the early morning. This is a rare occultation that a planet occults a bright star visible to the naked eye, which could be seen from a part of coasts of Pacific Ocean, including Japan. Nikon COOLPIX P610 digital camera; ISO 1600, F6.5, 1/3s exposure, f=1440mm (trimmed) from 4:02:43 to 4:56:34 (UTC+9), Oct. 19. Chi-Leo is fixed in all frames.
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Comments
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Thank you for taking the wonderful picture and sharing! !
Posted by colson175 2015-10-20 01:10:12
Thank you, colson175!
It is my pleasure!
Posted by shiram 2015-10-20 07:28:26
Shouldnt Jupiter be visible in this? Or is that the bright object to the upper right? In my own stargazing, I remember both planets visible, as I was looking to see if I could see 1998 KY26!
Posted by alienvenom 2015-10-20 18:40:49
Hi, alienvenom!
That bright object to the upper right is Jupiter and its Galilean moons. This occultation by Mars occurred on the next morning of the conjunction of Mars and Jupiter within 0.4 degrees. At the moment of occultation, Mars and Jupiter were still close within 0.6 degrees, so I can capture them together in the f=1440mm viewfield. The alignment of Galilean moon around Jupiter helps to comprehend the close distance between Mars and chi-Leo.
Posted by shiram 2015-10-21 06:11:31
 
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