GK Per

Alert Notice 649: Dwarf nova outburst of GK Per (N Per 1901)

Note: GK Per MAY be beginning an outburst; please continue to observe.  -  Elizabeth O. Waagen, October 4, 2021

Although the 2018 outburst of GK Per has been over for some time, ongoing good coverage is requested.  -  Elizabeth O. Waagen, 13 April 2020

August 24, 2018: The old nova GK Per (N Per 1901), which has dwarf nova (minor) outbursts, appears to be going into outburst, according to observations reported to the AAVSO. Recent observations include:

Alert Notice 159: Minor Outburst of 0324+43 GK Persei (Nova Per 1901) AND 1221+09 Supernova in NGC 4411B

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 159 (July 7, 1992)

MINOR OUTBURST OF 0324+43 GK PERSEI (NOVA PER 1901)

Special Notice #26: Possible Minor Outburst of 0324+43 GK Persei

December 15, 2006

Coordinates: 03:31:11.82 +43:54:16.8 (2000.0)

Recent observations of the old nova intermediate polar magnetic catclysmic variable GK Per (Nova Per 1901) show the star brighter than minimum. However, it is too early to tell if an outburst is underway.

Special Notice #198: Possible Outburst of GK Per

March 9, 2010: The old nova (1901) and x-ray source GK Per may be going into outburst. Reports beginning late on 2010 March 6 UT show it brightening from its minimum visual magnitude of about 13.1 to 12.3-12.4.
 
When GK Per went nova in 1901, its disk was destroyed. Eventually the disk was re-established, and dwarf nova-like outbursts were observed.

Alert Notice 205: Outburst of 0749+22 U Geminorum AND 1900-01 Nova Aquilae 1995 AND Request to monitor 1544+28a R Coronae Borealis AND Monitoring of 0900-31 T Pyxidis AND Monitoring of the old nova 0324+43 GK Persei [V1425 Aql]

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 205 (April 4,1995)

OUTBURST OF 0749+22 U GEMINORUM

The dwarf nova-type cataclysmic variable U Geminorum is in outburst, as indicated by the following
observations:

Alert Notice 211: AAVSO on World Wide Web AND 1958+56 V1028 Cygni in outburst AND Brightening of 1601+67 AG Draconis AND 0409-71 VW Hydri observed with EUVE AND Reminders - GK Persei and T Pyxidis

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 211 (August 1, 1995)

AAVSO ON WORLD WIDE WEB

We are proud to announce that the AAVSO now has a home page available on the World
Wide Web (WWW). The address of our home page on the WWW is:

    http://www.aavso.org