AAVSO International Database

Alert Notice 506: Alpha Com eclipse observing campaign

January 16, 2015:  THIS CAMPAIGN HAS BEEN CANCELLED. PLEASE SEE AAVSO SPECIAL NOTICE #395 FOR DETAILS.

 

December 5, 2014: Drs. Matthew W. Muterspaugh and Gregory W. Henry (Tennessee State University) have requested AAVSO observers' assistance in monitoring the possible Algol-like binary star alpha Com before, during, and after the eclipse they have predicted for mid-to-late January 2015.

Alert Notice 504: Epsilon Aur monitoring during predicted pulsation phase

Note: A thread for this campaign has been created in the AAVSO Campaigns and Observation Reports discussion forum: https://www.aavso.org/eps-aur-monitoring

CONTINUED AT LEAST THROUGH 2021  -  Elizabeth O. Waagen, 17 April 2020

September 17, 2014: Dr. Robert Stencel (University of Denver Astronomy Program) has requested that AAVSO observers monitor epsilon Aurigae from now through the end of the observing season.

Alert Notice 503: Request for regular monitoring of the symbiotic variable RT Cru

Notes:  Please continue to monitor RT Cru as it continues to decline slowly from its outburst that began in 2021 and after it returns to minimum.  -  Elizabeth O. Waagen, April 4, 2023

This campaign has been extended indefinitely. Dr. Karovska requests monitoring of RT Cru until further notice.  -  Elizabeth O. Waagen, 17 April 2020

Special Notice #386: ASASSN-14cl New large-amplitude cataclysmic variable

June 20, 2014: Kris Z. Stanek (The Ohio State University) et al. reported the discovery during the ongoing All-Sky Automated Survey for SuperNovae (ASAS-SN) of a bright transient (10.66V) on 2014 June 14.52 UT. Data were obtained using the quadruple 14-cm "Brutus" telescope in Haleakala, HI (hosted by Las Cumbres Observatory Global Telescope Network).(ATel #6233, http://www.astronomerstelegram.org/?read=6233)

Special Notice #385: SBS 1108+574 HST/COS observations crucial NOW

May 13, 2014: The HST/COS observations of the cataclysmic variable SBS 1108+574 described in AAVSO Alert Notice 501 and Special Notice #384 are scheduled for 2014 May 16 06:19:04 - 15:16:56 UT.

Your observations TONIGHT AND PARTICULARLY TOMORROW NIGHT ARE CRUCIAL!

Special Notice #384: SBS 1108+574 HST/COS obs next week

May 9, 2014: The HST/COS observations of the cataclysmic variable SBS 1108+574 described in AAVSO Alert Notice 501 have been pushed back a few days. The new exact time of the observations is:

                 SBS 1108+574      2014 May 16 06:19:04 - 15:16:56 UT

Alert Notice 501: Monitoring requested for HST/COS observations of SBS 1108+574

April 29, 2014: Dr. Peter Garnavich (University of Notre Dame) and Dr. Paula Szkody (University of Washington) have requested the help of AAVSO observers in monitoring the cataclysmic variable SBS 1108+574 (= CSS 120422:111127+571239) in support of upcoming Hubble Space Telescope observations. The HST COS (Cosmic Origins Spectrograph) will be carrying out far-ultraviolet spectroscopy of this target on 2014 May 12-13 UT.

Alert Notice 500: Novae in Scorpius and Cygnus [V1534 Sco, V2659 Cyg]

April 2, 2014

1. Nova Scorpii 2014 = TCP J17154683-3128303  [V1534 Sco]
2. Nova Cygni 2014 = PNV J20214234+3103296  [V2659 Cyg]


1. Nova Scorpii 2014 = TCP J17154683-3128303

Event: Nova Scorpii 2014 = TCP J17154683-3128303

Discovered by: Koichi Nishiyama (Kurume, Japan) and Fujio Kabashima (Miyaki, Japan)