Note to Users of 2010 Bulletin
Also, the disquieting trend I first noticed two years ago is continuing, although some stars are showing better coverage: For many stars that have their maximum brightness around magnitude 10 or fainter, there is a noticeable decrease in the number of observations on the falling branch (that is, from maximum to minimum) than in the past. This trend does not appear in stars that have their maximum around magnitude 8 or brighter, even when the falling branch goes to magnitude 12 or fainter. In general, seems that stars roughly magnitude 8- 12 are well covered and magnitude 10-14 are suffering.
I realize that there are a great many astronomical objects competing for your observing time, especially for users of moderate- to large-sized telescopes. However, I urge you not to neglect the AAVSO Bulletin stars!
These stars have decades - some, well over a century - of ongoing data provided by you and your colleagues, and continued continuity is essential to the researchers who will be analyzing these stars in the decades to come.
Many thanks to each of you for your valuable astronomical contributions. We look forward to continuing to receive your observations!
Elizabeth O. Waagen
Senior Technical Assistant