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LPV of the Month - November 2019 - TX Psc

TX Psc

by Rich Roberts

TX Psc is a very bright, nearby star which is well studied and of interest to professional astronomers. One observer from the BAA-VSS logged a few observations back in 1887 after which the star seemed to have been forgotten about until 1947 when regular visual observations picked up again. There are currently 13,515 observations in the AID, 91.6% of which are visual.

Increase Astronomical Discoveries by Storing Your Spectroscopic Observations with AVSpec

A new database created by AAVSO enables amateur to experienced observers to record data from any variable object in the sky  

Cambridge, MA (October 23, 2019)A new era of variable star astronomy starts as the American Association of Variable Star Observers (AAVSO) now welcomes spectra observations from the AAVSO community.

LPV of the Month - October 2019 - V CrB

V CrB

by Rich Roberts

V Crb (15 49 31.31 +39 34 17.9, J2000) is a peculiar orange-red carbon-star (C6,2e (N2e)) with a long history of AAVSO coverage. Since V CrB recently became an asymptomatic giant branch star, it is currently in its hydrogen shell and helium shell burning stage of life.   V CrB is in the legacy LPV program and Percy’s list of pulsating red giants (PRGs) exhibiting unusual behavior. The AID currently holds 34,114 observations by 1248 different observers since 1904.

Journal of the AAVSO May Be Innovative Experience with New Editor, Nancy Morrison

CAMBRIDGE, Mass. (Sept. 26, 2019)—For the past ten years, under the guiding hand of Editor-in-Chief Professor John Percy (University of Toronto), the Journal of the American Association of Variable Star Observers (JAAVSO) has flourished. Starting October 1, 2019, the scholarly journal’s pages will see new Editor-in-Chief Professor Nancy Morrison (University of Toledo) at the keyboard implementing her vision.

Alert Notice 680: Monitoring of J0139 (ZTF J013906.17+524536.89) requested - corrected

Note: This Alert Notice has been edited to correct the mis-spelling of the short form of the star name. It is J0139, not J1039.  -  E. O. Waagen, September 18, 2019

September 18, 2019

AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
 - Campaigns and Observing Reports
: https://www.aavso.org/j0139-campaign