Alert Notice 817: Coverage needed of MU Cam in current low state

Note: MU Cam has returned to its high state; please continue observations until further notice.  -  Elizabeth O. Waagen, May 2, 2023

March 15, 2023

AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
- Campaigns and Observing Reports:
- Cataclysmic Variables:

Please subscribe to these threads if you are participating in the campaign so you can be updated by the astronomer and by HQ. Join in the discussion or ask questions there!


Dr. Aarran Shaw (University of Nevada, Reno) has requested AAVSO observers' assistance in monitoring the intermediate polar cataclysmic variable MU Cam, which is currently in its low state.

Intensive observations are requested while MU Cam is in this low state, and for some time after it returns to its high state. The cutoff date for observations will be posted in the forum threads given above. The requested cadence is 3-4 hours a night, ~2-minute exposures. Observations should be in V or CV.

Dr. Shaw writes: "If there’s any way to get nightly observations with [this] observing strategy then it would really help us inform follow-up with other observatories, particularly the Chandra X-ray observatory!"

Coordinates (2000.0):  R.A. 06 25 16.25   Dec.  +73 34 39.1   (from VSX page for MU Cam)

Charts with comparison stars for MU Cam may be created using the AAVSO Variable Star Plotter (VSP).

Please submit observations to the AAVSO International Database using the name MU CAM.

This AAVSO Alert Notice was compiled by Elizabeth O. Waagen using information provided by Dr. Shaw.


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