Alert Notice 649: Dwarf nova outburst of GK Per (N Per 1901)
Note: The outburst suspected of possibly beginning in early October did not occur. Please continue to observe. - Elizabeth O. Waagen, 29 October 2021
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