Skip to main content

HST

Alert Notice 241: Request to monitor 2138+43 SS Cygni for observations with HST, EUVE, and RXTE AND Note about Alert Notices and News Flashes

THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
INTERNET:  aavso@aavso.org
WORLD WIDE WEB:  http://www.aavso.org
Tel. 617-354-0484       FAX 617-354-0665

 AAVSO ALERT NOTICE 241 (October 10, 1997)

REQUEST TO MONITOR 2138+43 SS CYGNI FOR OBSERVATIONS WITH HST, EUVE, AND RXTE

Alert Notice 257: Request to monitor 2138+43 SS Cygni for multiwavelength observations

THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
INTERNET:  aavso@aavso.org
Tel. 617-354-0484       FAX 617-354-0665

AAVSO ALERT NOTICE 257 (April 28, 1999)

REQUEST TO MONITOR 2138+43 SS CYGNI FOR MULTIWAVELENGTH OBSERVATIONS

Alert Notice 143: Major campaign on the flare star 1014+20 AD Leo AND SN 1991T AND Nova Her 1991 AND Nova Men (LMC) 1991

THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
BITNET: aavso@cfa8 SPAN: nssdca::cfa8::aavso
Tel. 617-354-0484 FAX617-3S4-0665
    

AAVSO ALERT NOTICE 143 (May 3, 1991)

MAJOR CAMPAIGN ON THE FLARE STAR 101420 AD LEONIS

Alert Notice 318: New Alert Notice publication policy AND Possible nova in Aquila AND New possible CV in Norma AND Request to monitor the CV SDSS 013132 for HST observations AND V2291 Oph eclipse PEP campaign AND TU Cas visual+PEP+CCD campaign

June 10, 2005

SUBJECTS:
1. NEW ALERT NOTICE PUBLICATION POLICY
2. POSSIBLE NOVA IN AQUILA
3. NEW POSSIBLE CATACLYSMIC VARIABLE IN NORMA
4. REQUEST TO MONITOR THE CV SDSS 013132 FOR HST OBSERVATIONS
5. V2291 OPH ECLIPSE PEP CAMPAIGN
6. TU CAS VISUAL + PEP + CCD CAMPAIGN

------------------------------------------------------------------------------
1. NEW ALERT NOTICE PUBLICATION POLICY

Alert Notice 356: Request to monitor PQ Andromedae for HST Observations

August 24, 2007: Dr. Paula Szkody (University of Washington) has requested our help in monitoring the nova PQ Andromedae for upcoming Hubble Space Telescope observations. The HST observations are scheduled to be made during the week of 2007 September 10-16 UT. Dr. Szkody requests monitoring of this object during the two weeks prior to the observing window, and intensive monitoring during the 24-48 hour period during which observations will be made.

PQ Andromedae (0223+39) is at R.A. 02:29:29.61 , Dec +40:02:40.0

Alert Notice 358: Monitoring of Mira (omi Cet) in support of HST Observations

September 17, 2007: Dr. Margarita Karovska (Harvard-Smithsonian Center for Astrophysics) and
collaborators are performing a comprehensive study of the Mira AB interacting system, using the WFPC2 camera on the Hubble Space Telescope. Mira AB is composed of the prototype Mira variable omi Cet and its companion VZ Cet, separated by about 0.5 arcsecond. As part of this project they plan to obtain a large number of high-angular resolution images at wavelengths ranging from UV to optical.  The main objectives of the HST/WFPC2 observations are:

Pages

AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484