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Alert Notice 725: Campaign on Northern T Tau Stars

Note: V510 Tau, one of the stars in this campaign, will be re-observed by HST on 2021 February 12-13 UT. Please continue your observations (highest priority are V and B, then Rc and U), obtaining a few observations each night from now through February 15.  -  Elizabeth O. Waagen, 1 February 2021

November 12, 2020

Alert Notice 722: N Sgr 2020 No. 4 = PNV J17545999-2122401 [V6593 Sgr]

The GCVS name V6593 Sgr has been assigned to this nova. Please use this name when submitting observations to the AAVSO International Database.  -  Elizabeth O. Waagen, 9 October 2020

October 5, 2020

Alert Notice 721: Anticipated secondary eclipse of b Persei centered on October 26 2020 UT

October 1, 2020

AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
- Campaigns and Observation Reports: https://www.aavso.org/b-per-oct-2020-campaign

Please subscribe to this thread if you are participating in the campaign so you can be updated by the astronomers and by HQ. Join in the discussion or ask questions there!

Alert Notice 719: Light curves for symbiotic star ASAS J190559-2109.4

August 26, 2020

AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
- Campaigns and Observation Reports: https://www.aavso.org/asas-j190559-21094-campaign

Please subscribe to this thread if you are participating in the campaign so you can be updated by the astronomer and by HQ. Join in the discussion or ask questions there!