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Large amplitude QSO DA55 outburst?

lmk
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Joined: 2010-07-23

I just glimpsed it at around v~16.7, the  first time that I got a positive visual estimate since I started following this QSO/AGN. I have it noted as being the largest known amplitude QSO, so it may get brighter than 14th mag if it continues!

Mike LMK

DA55 = MisV1436
MUY
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Joined: 2010-07-23

Indeed Mike, a very interesting one to follow : http://www.aerith.net/misao/variable/MisV1436.html

Eddy (MUY)

DA 55 is at its bigest
rmu
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Joined: 2010-07-23

DA 55 is at its bigest brightness in four years. It would be worth to keep an eye.

Thanks to Sonoita remote telescope and AAVSOnet I am able to do extensive ccd imaging, V filtered.

DA 55 continues to brighten
lmk
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Joined: 2010-07-23

Visually estimated last night at 15.9 (mean value) with short term variations of a few tenths. I guess these rapid fluctuations are typical of the energetic QSO/relativistic jets?

LMK

AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484