THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
BITNET: aavso@cfa8 SPAN: nssdca::cfa8::aavso
INTERNET: aavso@cfa0.harvard.edu
Tel. 617-354-0484 FAX 617-354-0665
AAVSO ALERT NOTICE 175 (August 4,1993)
THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
BITNET: aavso@cfa8 SPAN: nssdca::cfa8::aavso
INTERNET: aavso@cfa0.harvard.edu
Tel. 617-354-0484 FAX 617-354-0665
AAVSO ALERT NOTICE 174 (July 22,1993)
UPDATE ON ORFEUS MISSION
THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
BITNET: aavso@cfa8 SPAN: nssdca::cfa8::aavso
INTERNET: aavso@cfa0.harvard.edu
Tel. 617-354-0484 FAX 617-354-0665
AAVSO ALERT NOTICE 173 (July 7,1993)
REQUEST TO MONITOR CATACLYSMIC VARIABLES DURING ORFEUS MISSION
July 6, 2007
AM Her has been in an extended faint state (V=15.4) for the past two years. Just over the last few days, we have seen observations that show AM Her increasing in brightness by about a magnitude. While flaring of this order has occurred before, we ask that observers raise the priority of AM Her observations to keep an eye on this latest activity. There is the potential for triggering satellite observations if AM Her is going into outburst.
Arne Henden
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SUBMIT OBSERVATIONS TO THE AAVSO
February 1, 1980
THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
187 Concord Avenue, Cambridge, MA 02138 USA
Tel. 617-354-0484
SPECIAL ALERT NOTICE
April 3, 2015: Further to AAVSO Alert Notice 517 (www.aavso.org/aavso-alert-notice-517), Dr. Axel Schwope (Leibniz Institute for Astrophysics Potsdam, Germany) informs us that the NuSTAR X-ray observations of AM Her will take place on
2015 April 5 15:35 UTC - April 6 19:15 UTC
These NuSTAR observations overlap with the XMM-Newton observations scheduled for April 6.
Filtered photometry with standard filter (BVRI) is requested using the cadence given in Alert Notice 517.
April 2, 2015: Dr. Axel Schwope (Leibniz Institute for Astrophysics Potsdam, Germany) has requested AAVSO observers' assistance in monitoring the magnetic variable AM Her in support of upcoming XMM-Newton plus NuSTAR (Nuclear Spectroscopic Telescope Array) observations.
The XMM-Newton observations are scheduled for 2015 April 06 02:37:02-15:07:02 UT. The NuSTAR observations have not been made final yet but are expected to run longer. A Special Notice will be issued when the NuSTAR schedule is known.
THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
BITNET: aavso@cfa SPAN: cfa::aavso
INTERNET: aavso@cfa.harvard.edu
Tel. 617-354-0484 FAX 617-354-0665
AAVSO ALERT NOTICE 184 (May 17, 1994)
BRIGHTENING OF 1137+72 YY DRACONIS (= DO DRACONIS)
THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
BITNET: aavso@cfa SPAN: cfa::aavso
INTERNET: aavso@cfa.harvard.edu
Tel. 617-354-0484 FAX 617-354-0665
AAVSO ALERT NOTICE 204 (March 22, 1995)
A VERY SUCCESSFUL ASTRO-2 MISSION COMPLETED
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 218 (February 16, 1996)
MONITORING OF 1813+49 AM HERCULIS FOR INTERNATIONAL OBSERVING CAMPAIGN
