Alert Notice 741: Southern T Tau Stars campaign in support of HST and TESS observations

Note:  HST will be observing Sz 76 again on August 8  from 11:27:38 through 18:56:12 UT. Please add this target to your observing queue if practical. Dr. Walter remarks that there will be no TESS data, so frequent (at least nightly) BVRI observations will be helpful for setting the context for the HST spectra.  -  Elizabeth O. Waagen, August 2, 2021


The HST observations of NSV 20468 (Sz 130) and SSTc2d J160000.6-422158 have been scheduled as follows:

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 673: SS Cyg photometry and spectroscopy requested to complement TESS monitoring

July 25, 2019

AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
  -   Campaigns and Observing Reports: https://www.aavso.org/ss-cyg-tess-2019
  -   Cataclysmic Variables: ss-cyg-tess-2019-01

Dr. Stella Kafka (AAVSO) has requested multicolor photometry and spectra of the dwarf nova SS Cyg to complement monitoring by the TESS satellite taking place now to mid-September.