Data from last night
We used the Madrona Peak Obs 0.6m Ritchey to get a 15min summed Rc image of this star last night. Submitted our measurement of Rc=19.399 (0.094). Will have to sum more 5min images to go deeper next time skies clear. This one is a challenge.
-Walt Cooney (cwt)
Affiliation
American Association of Variable Star Observers (AAVSO)
AT 2000ch (Feb 24)
Looks like I am the other observer and I agree-- this one is definitely faint. I have it at mag 19.447 on Feb 24-- 24 minutes total using the 0.9-meter SARA at Kitt Peak.
Tom (rth)
AAVSO Alert Notice 853 announces an observing campaign beginning immediately on the SDOR variable AT 2000ch (LMi). Please see the notice for details and observing instructions.
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Many thanks, and Good observing,
Elizabeth O. Waagen, AAVSO HQ