Continuing my obsessively double measure of the Corona Borealis, I have the great pleasure to confirm you the identification of two pairs "neglected", measured in the evening session of July 11, 2009.
Once again I enjoyed a near perfect atmospheric stability. Temperature, more than pleasant, it has remained in the 24.5 ยบ C from the beginning to the end of the session, the relative humidity fairly high as almost always happens in Barcelona because of its proximity to the sea, has fluctuated between 74% and 77 %...¡¡ dew shield Luck! ... and that is that I refuse to use trace heating, especially in summer.
has worked with SC LX200R 10 "f/10 with QHY-5 mono, equipped with a filter Baader IR-UV Block, a primary focus. Due to the convenient separation of the components and the quality of the images, for the reduction has been used Autoreduc function. Comment
that AB 1166 HU 190 BC and belong to FOX one triple system with an M-class red primary with secondary magnitude magnitudes 8.7 and 13.4 and 12.2. HU
AB 1166 was discovered in 1905 by WJ Hussey and has been measured on three occasions, the last in 1919. According to my measurements, since then the AP has changed nothing more and nothing less than 8.3 ° separating its components about 1 ". In 1916 P. Fox added to the system component C, measured only in detection and confirmed ... Nothing more and nothing less that 93 years later!. Since then according to my measures, has significantly reduced values \u200b\u200bof Theta and Rho.
No, if you get bored with the double, I doubt that we can bore ... It's so hard to close a topic ... always there is something to check. Well let me
and roll and I will put the data.
-=-= HU 1166 AB =-=-
Date: 2009,525
139.29 (sigma theta: 0.54) Med: 139,275
4866 (sigma rho: 0183) Med: 4.8585 = 6.3
Deltamed
-=-= FOX 190 BC =-=-
Date: 2009,525
271.62 (sigma theta: 0.42) Med: 271.6
59.66 (sigma rho: 0392) Med: 59,668
Deltamed = 6.6
Well, this is what you get for now, but do not hesitate to be more.
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