Tabby's star (KIC 8462852) is dipping -- Urgent observations are requested

American Association of Variable Star Observers (AAVSO)
Fri, 05/19/2017 - 13:38


The mysterious  KIC 8462852 (Tabby's star) seems to be entering one of its rare dip, and observations are urgently needed to capture the event. The object is at V~11.88 and, according to Dr Tabby Boyajian, it has dropped by 2% (in r) so far. 

Coordinates (J2000):  RA 20 06 15.46 , Dec +44 27 24.8

More information can be found here:

We would like  time-series photometry with V filter, but all photometry is welcome. 

Thank you in advance for your attention to this target!

Best wishes - clear skies,


Royal Astronomical Society of Canada (RASC)
I just posted my nightly

I just posted my nightly observation in BVRI (transformed/aggregate of 2 obs) from last night - I don't see anything too alarming in comparison to two nights earlier or over the last month (same equipment).

Dave (LDJ)

American Association of Variable Star Observers (AAVSO)
KIC 8462852 (Tabby's Star) in AAVSO Alert Notice 579

AAVSO Alert Notice 579 reports on the optical dipping event in KIC 8462852 that began 2017 May 18. Please see the Alert Notice for details and observing instructions.

Many thanks, and good observing,

Elizabeth Waagen, AAVSO HQ