All nodes that have this tag will posted to the home page "Recent Activity" block
S Aurigae
A Carbon Star
Summary
This month's Long Period Variable (LPV) star, S Aur, should be a treat for Visual observers. S Aur is a fairly bright but very dark red Carbon star. It’s B-V index is between ~3.5 to ~5, making it a very red object. (The B-V ratio seems to change over time, which might be investigated in the future with a focus on the B, V, and Ic bands.)
From Wikipedia:
Note: The outburst suspected of possibly beginning in early October did not occur. Please continue to observe. - Elizabeth O. Waagen, 29 October 2021
GK Per MAY be beginning an outburst; please continue to observe. - Elizabeth O. Waagen, October 4, 2021
Although the 2018 outburst of GK Per has been over for some time, ongoing good coverage is requested. - Elizabeth O. Waagen, 13 April 2020
Note: Please continue coverage of ASASSN-V J195442.95+172212.6 (TCP J19544251+1722281 = Vend47) until further notice. - Elizabeth O. Waagen, 13 April 2020
August 14, 2018
The July Solar Bulletin is now available. Please visit the Solar Bulletin web page to download your copy: https://www.aavso.org/solar-bulletin
The July SID Data report is available here: https://www.aavso.org/sid-database
August 13, 2018
Event: Nova in Ophiuchus - N Oph 2018 No. 3 = PNV J17422408-2053088
Discovered by: C. Jacques, J. Barros, E. Pimentel, and P. Holvorcem, on behalf of the Brazilian Transient Search - BraTS (at SONEAR Observatory, Oliveira, Brazil); via TOCP
Discovery magnitude: unfiltered CCD magnitude 11.1 (on three frames, 10-sec exposure, using an astrograph 11" f/2.2 + CCD camera)
Discovery date: 2018 August 08.9596 UT
August 6, 2018 : Further to AAVSO Alert Notice 640, the SU UMa-type dwarf nova VW Hyi is in outburst and is the subject of a multiwavelength campaign designed to detect possible radio emission during the outburst.
R Leo Minoris
R LMi is an interesting Mira star that has been observed by AAVSO observers and members since 1865. Over 21,000 observations are in the AID from over 900 different observers as can be seen in the light curve shown below which displays all observations in the AID. It is one of the Legacy LPV Program stars. It was observed initially in the 1860’s-1870’s before a cessation in observations occurred. Reasonable coverage did not commence again until the establishment of the AAVSO in 1911.
Note: This campaign has been extended to October 2020 and the list of targets has been revised. Please see AAVSO Alert Notice 687 for details. - Elizabeth O. Waagen, December 4, 2019
July 31, 2018: Michael Stroh (Ph.D. candidate, University of New Mexico) requests AAVSO assistance in monitoring 19 LPVs in support of a VLA campaign studying SiO masers. AAVSO monitoring begins now and goes through October 2019.
Nightly monitoring of FO Aqr is requested throughout the month of October 2022. Many thanks. - Elizabeth O. Waagen, 3 October 2022
Please continue observing FO Aqr according to the revised observing cadence given in the next paragraph. - Elizabeth O. Waagen, 1 February 2021
July 25, 2018: John Strachan (Ph.D. candidate, Queen Mary University of London) and Dr. Guillem Anglada-Escude (Queen Mary University of London) have requested AAVSO assistance in the monitoring of three M dwarf stars as part of the Red Dots #2 campaign.
