[Aavso-photometry] GJ 436 update and upcoming transit times

Aaron Price aaronp at aavso.org
Fri Jun 15 14:04:51 EDT 2007


 We have our first set of data, reported by Bill Goff (GFB). I've placed a light curve 
of his data on the web page: http://www.aavso.org/news/gj436.shtml .  There seems to 
be some disagreement about Geir's reported transit on May 31. The data has not been 
submitted to the AAVSO, but his report is also available via that web page.

 Here are some predicted transits (UT) for the next week. As you can see, they are 
fast (62 min.)!

 Begin                                    End
 JD               Mon. Day  Hour Min
 2454267.54 2007  6    16    0   53      2454267.59 2007  6 16  2  3
 2454270.18 2007  6    18    16  20      2454270.23 2007  6 18 17 30
 2454272.82 2007  6    21    7   47      2454272.87 2007  6 21  8 57
 2454275.47 2007  6    23    23  14      2454275.52 2007  6 24  0 24
 2454278.11 2007  6    26    14  41      2454278.16 2007  6 26 15 52

>From http://www.ucolick.org/%7elaugh/GJ436____b.transits.txt

 But remember we need data all the time, not just during transit windows. 


Aaron


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