[vsnet-alert 1787] 3C345 brightening (Balonek)

[Taichi Kato <tkato>]

From TBALONEK@CENTER.COLGATE.EDU Sat May 16 13:40 JST 1998
Date: Sat, 16 May 1998 00:40:58 -0500 (EST)
From: Thomas Balonek <TBALONEK@CENTER.COLGATE.EDU>
Subject: 3C345 brightening
To: aew@ipac.caltech.edu, tkato@kusastro.kyoto-u.ac.jp
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From:	CENTER::TBALONEK     "Thomas Balonek" 16-MAY-1998 00:38:01.18
To:	IN%"Gino.Tosti@PG.infn.it",MATTOX,WEBB,HARTMAN,MILLER,TBALONEK
CC:	
Subj:	3C345

Blazar enthusiasts
   3C345 continues to brighten rapidly:

Optical R filter measurements for 3C345
Thomas J. Balonek
at Colgate University Foggy Bottom Observatory
16-inch telescope and CCD camera
Preliminary reductions done at telescope
(errors about +/- 0.05 magnitude when bright, 0.10 when faint)

3C345 is currently undergoing a period of intense activity
(see the graphs available on this web page), reaching as bright as
R = 15.5 on 1998 May 16 UT.  This is the brightest recorded
at Foggy Bottom Observatory since 1996.0, as shown in the long term
light curve.

year  month   day (UT)    R    dR
1997    12      10      17.05 0.15
1998    1       11      16.89 0.15
1998    2       07      16.90 0.10
1998    2       26      16.48 0.06
1998    3       08      16.68 0.07
1998    3       24      16.72 0.08
1998    4       18      16.37 0.05
1998    4       28      16.37 0.05
1998    5       14      15.83 0.05
1998    5       16      15.49 0.05


I  haven't yet put this table on the web page, but should before the weekend
ends.

  Tom

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