Event: Type-Ia Supernova 2009ig in NGC 1015 has brightened
Discovered By: I. Kleiser, S. B. Cenko, W. Li, and A. V. Filippenko, University of California (LOSS discovery on unfiltered KAIT images)
Discovery Date: Aug. 20.48 UT
Dr. Brian Espey (Trinity College, Dublin, Ireland) has requested photoelectric photometry and bright star CCD photometry of the semiregular variable NSV 99 (= khi Peg) beginning immediately. These observations are in support of ultraviolet spectroscopy to be obtained with the Hubble Space Telescope in late October and late November 2009. Observations are requested to continue through the end of November 2009.
The observers of the AAVSO are asked to participate in a long-term photometric monitoring campaign on a number of magnetically active dwarf stars, requested by Dr. Styliani (Stella) Kafka of the Department of Terrestrial Magnetism, Carnegie Institute of Washington. She requests long-term monitoring of these targets with an observing frequency of one observation every three days taken with one or more filters.
The WZ Sge-type dwarf nova EG Cancri has been reported in outburst by Ian Miller (Swansea, Wales). He reported EG Cnc at m(CV) = 14.3 on 2009 October 12.138 (JD 2455116.638). Subsequent unfiltered time series observations by Miller reported to the AAVSO confirm EG Cnc at around magnitude 14.3; the star declined by approximately 0.1 magnitudes during the two-hour span of the time series. Observations of EG Cnc are urgently requested at this time, including visual estimates, CCD photometry, and CCD time-series observations.
October 28, 2013:
Koichi Itagaki (Yamagata, Japan) reports (via the TOCP page and [vsnet-alert]) his discovery of a possible nova in Aquila [V1830 Aql]:
R.A. 19h02m33.35s, Decl. +03o15'19.0" (J2000.0)
2013 Oct. 28.4571 UT, 13.8 mag (unfiltered)
October 24, 2013: HD 15407A is one of the targets in the current observing campaign by Huan Meng and Dr. George Rieke (runs through December 2013; see AAVSO Alert Notice 482). The very nearby star marked 96 (HD 15407B, AUID 000-BKY-170) was selected as the comparison star for this target. However, it has been found that the published magnitude of this star is questionable, and the astronomers have withdrawn it as the comparison.
October 1, 2013: Koichi Nishiyama (Kurume, Japan) and Fujio Kabashima (Miyaki, Japan) report their discovery of a possible nova - which now appears to be a red variable - in Sco at unfiltered magnitude 11.1 on unfiltered CCD images taken 2013 Sep. 30.44605 UT. They confirmed their discovery on images taken around 2013 Sep 30.4621 UT. Nothing was seen down to magnitude 13.5 and 13.7 on images taken 2013 Jul 11.539 UT and 12.571 UT, respectively, or on DSS or USNO-B1.0 images. A check for minor planets was carried out.
September 24, 2013: HST/COS is scheduled to observe the SU UMa-type variable BB Ari:
BB Ari 2013 September 27 03:01:26 through 06:29:37 UT
The HST scheduling team will likely make their final decision early on September 26, so your observations are essential NOW.
September 11, 2013: HST/COS is scheduled to observe the WZ Sge-like SU UMa variable GZ Cet (SDSS J013701.06-091234.9) the day after tomorrow. Observations are scheduled for:
GZ Cet 2013 Sep. 13 12:24:02 through 19:06:54 UT
The scheduling team will likely make their final decision early TOMORROW (September 12), so your observations are essential NOW.
September 5, 2013: HST/COS is scheduled to observe the WZ Sge-like SU UMa variable GZ Cet (SDSS J013701.06-091234.9) next week. Observations are scheduled for:
GZ Cet 2013 Sep. 13 12:24:02 through 19:06:54 UT
