September 4, 2006: The AAVSO/CWST NGC 6811 Deep and Wide Field Campaign has begun. The Case-Western Schmidt Telescope (CWST) at Kitt Peak began observing the field on the evening of Sep. 1, 2006. This campaign is being coordinated with Dr. Steve Howell (NOAO). Background information and the scientific justification is available in AAVSO Alert Notice 339 located at this URL:
October 9, 2006
Object: 2106-09 VY AQR
Coordinates: R.A. 21h 12m 09.20s Dec. -08o 49' 36.5" (2000.0)
November 10, 2006
Object: 2320-08 EG AQUARII
Coordinates: R.A. = 23h 25m 19.17s Decl. = -08o 18' 18.9" (USNO-B1.0, 2000)
Other (2000) positions reported include:
23:25:19.20 -08:18:18.9 (P. Schmeer, measurement of Univ. Iowa image)
23:25:19.20 -08:18:19.2 (A. Imada)
23:25:19.21 -08:18:19.6 (Henden and Sumner)
January 26, 2007
Event: Nova in Centaurus
Discovered By: William Liller, Vina del Mar, Chile
Discovery Date: on films taken near Jan. 23.354 UT
Discovery Magnitude: approximately 8.2, on two Technical Pan films taken with an 85-mm focal length camera lens and an orange filter
Position: R.A. = 11h 43.2m Decl. = -58o 03' (equinox 2000.0) from Liller.
February 15, 2007: Dr. Christian Knigge, University of Southampton, England, has requested our assistance in monitoring ten (10) dwarf novae cataclysmic variables as part of a search for radio jet formation during outbursts. Dr. Knigge is attempting to observe a dwarf nova outburst within six hours of the outburst onset using the NRAO Very Large Array (VLA) telescope in New Mexico and the Jodrell Bank MERLIN telescope in the United Kingdom.
February 16, 2007
Event: Very Bright Nova in Scorpius
This nova, discovered at 9th magnitude 12 days ago, has brightened dramatically in the past few days to 3rd magnitude, becoming one of the brightest novae in the past several years. It has gained the attention of the professional community and will be observed by numerous satellites, including Chandra, Swift, and INTEGRAL.
February 22, 2007
Event: Nova in Scorpius
Discovered Independently by:
- Yuji Nakamura, Kameyama, Mie, Japan, (via H. Yamaoka, Kyushu University, IAU Circular No. 8810)
- Hideo Nishimura, Miyawaki, Kakegawa, Japan, (via S. Nakano, Sumoto, Japan, IAU Circular No. 8810)
Discovery Date:
- Nakamura: Feb. 19.8593 UT
- Nishimura: Feb. 20.8365 UT
HMXB campaign extended until further notice. It has been updated numerous times and covered in AAVSO Alert Notices 348, 354, and 377, and in AAVSO Special Notices #118, #129, #143, #213, and #220.
April 6, 2007
SUBJECTS:
April 12, 2007
SUBJECT: OUTBURST OF THE CATACLYSMIC VARIABLE 1514-24 GW LIB
Object: 1514-24 GW LIB
Coordinates: R.A. 15h 19m 55.5s Dec. -25o 00' 25" (2000.0)
June 6, 2007
Object: 1137+27 GJ 436
RA (2000) DEC V B-V V-Rc Rc-Ic V-Ic
11:42:11.58 +26:42:17.7 10.702 1.489 1.073 1.349 2.462
INTRODUCTION
Dr. Greg Laughlin (UC Santa Cruz/Lick Observatory & Transitsearch.org) has requested help in observing GJ 436 to look for transits of previously detected and undetected extrasolar planets.
