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[vsnet-obs 39028] Visual observations of SN 2002ap (ABG).




Norwegian Astronomical Society - Variable Star Section

*** Visual observations of Supernova 2002ap in NGC 628 ***

Object      YYYYMMDD(UT)  Mag   Obs  Instrument Ref   Notes
SN2002ap    20020204.785  12.5  ABG  C280;350x  NAS
SN2002ap    20020207.801  12.4  ABG  C280;140x  NAS   Somewhat hazy
SN2002ap    20020217.826  12.9  ABG  C280;140x  NAS

Brightness estimates:
Feb.  4.785 UT: C 5 V; V 3 G; V 5 J (class 1) [ABG].
Feb.  7.801 UT: C 6 V; V 4 G (class 2) [ABG].
Feb. 17.826 UT: F 4 V; G = V; V 2 J (class 1) [ABG].

NAS.VSS sequence (V-magnitudes): C = 11.73; D = 11.9; E = 12.4;
F = 12.6; G = 12.89; H = 13.04; J = 13.20; L = 13.77; N = 14.37.
Measurements of stars C, G-N are by A. Henden, USNO, others are
derived by combining various sources (Tycho-2, M2000, GSC-ACT, FONAC
and USNO-A2.0).

A NAS.VSS chart (prepared by B. Andresen) is at
http://vsnet.nvg.org/org/taf/artsam/varstj/kart/SN2002ap_c.gif

Observer's code: ABG = B. Andresen (Trondheim, Norway).

                          Yours sincerely,
                          Bjorn H. Granslo

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