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ES Aql at bright maximum

SXN's picture
SXN
Online
Joined: 2010-03-12

My recent CCD observation of ES Aql were surprisingly bright, but I didn't realize the sequence was lacking bright enough comp stars until I went to observe it visually last week and had to make a questimate based on a 10.8 - 12.1 gap in the sequence! I have rectified the situation since then by including some additional bright comp stars.

ES Aql at bright maximum
roe's picture
roe
Offline
Joined: 2010-07-25

As I look at that light curve I see the current maximum is more in line with historical maxima that the two previous cycles which seem abnormally low (compared to the earlier ones).  Both R CrB itself and Z UMi have shown this property of failing to recover to the historical maxima as well in the recent fadings.  Z UMi is currently trying to recover from its latest fade, maybe it will be able to mimic ES Aql and go all the way to its historical max?

Jim Roe

AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484