Notes: Post-outburst observations continue to be valuable and of interest. Please continue to observe RS Oph. - Elizabeth O. Waagen, July 2, 2024, September 30, 2024
Please continue to observe RS Oph, although the 2021 outburst is over. It returned to a fainter magnitude than before the outburst, so ongoing follow-up observations will be very valuable. - Elizabeth O. Waagen, April 4, 2022
August 9, 2021
Notes: Post-outburst observations continue to be valuable and of interest. Please continue to observe RS Oph. - Elizabeth O. Waagen, July 2, 2024
Please continue to observe RS Oph, although the 2021 outburst is over. It returned to a fainter magnitude than before the outburst, so ongoing follow-up observations will be very valuable. - Elizabeth O. Waagen, April 4, 2022
August 9, 2021
February 13, 2006: The recurrent nova RS Oph appears to be in a very rare outburst, as seen by the following AAVSO observations:
FEB 13.1631 2453779.6631 4.8 Visual RWG Wolfgang Renz, Germany
FEB 10.2100 2453776.71 11.0 Visual GRL Bjorn Granslo, Norway
FEB 08.2493 2453774.7493 10.9 Visual GZN Alfredo Gonzales-Herrera, Spain
The outburst was first detected by Kiyotaka Kanai (Gunma,Isezaki-shi) and Hiroaki Narumi (Ehime,Kita-gun) and reported to the VSNet-Alert mailing list.
February 13, 2006
SUBJECTS:
1. RECURRENT NOVA 1744-06 RS OPHIUCHI IN OUTBURST
2. W VIR MONITORING WINDOW EXTENDED TO MID-APRIL
1. RECURRENT NOVA 1744-06 RS OPHIUCHI IN OUTBURST
Object: 1744-06 RS OPH
Coordinates: R.A. 17h 50m 13.202s Dec. -06o 42' 28.48" (2000.0)
Re: REQUEST TO MONITOR 1744-06 RS OPHIUCHI FOR MULTIWAVELENGTH CAMPAIGN
Object: 1744-06 RS OPH
Coordinates: R.A. 17h 50m 13.202s Dec. -06o 42' 28.48" (2000.0)
Located in the equatorial constellation of Ophiuchus lies the variable RS Ophiuchi. RS Oph belongs to the cataclysmic variable (CV) class of stars, and is further classified as belonging to a smaller, seemingly "exclusive" group of CVs termed recurrent novae (NR) - of which there are only 7 confirmed members.
