[vsnet-obs 36017] V2275 Cyg on Sep 11-17 UT (B. Andresen, ABG)

["Bjorn H. Granslo" <b.h.granslo@astro.uio.no>]

Norwegian Astronomical Society - Variable Star Section

Visual observations of Nova Cygni 2001 No. 2 (V2275 Cygni)

Observer: Birger Andresen (ABG).
Location: Trondheim, Norway.
Instruments: 70-mm f/6.8 refractor (L70).
Magnitude references: CCD-V by A. Henden, USNO; V-mag. from
  Tycho-2 catalogue.
Observations: Visual, Argelander step estimates.
Conditions: Good to excellent.

Object      YYYYMMDD(UT)  Mag   Obs  Instrument  Ref
CYGV2275    20010911.903  11.3  ABG   L70;60X    Henden
CYGV2275    20010912.892  11.4  ABG   L70;60X    TYC2+H
CYGV2275    20010915.081  11.5  ABG   L70;60X    TYC2+H
CYGV2275    20010916.861  11.6  ABG   L70;60X    TYC2+H
CYGV2275    20010917.892  11.7  ABG   L70;60x    Henden

Observation on Sep 11.903 UT: R 5 V, V 4 T (class 1).
Observation on Sep 12.892 UT: S 3 V, V 3 T (class 1).
Observation on Sep 15.081 UT: S 3 V, V 2 T (class 1).
Observation on Sep 16.861 UT: S 5 V, V 1 T (class 1).
Observation on Sep 17.892 UT: T = V (class 2).

Comparison stars: R = TYC 3596-0604 (V=10.85, Henden);
  S = TYC 3592-0007 (V=11.11, Tycho-2) T = GSC 3596-0168
  (V=11.70, Henden).

                             Yours sincerely,
                             Bjorn H. Granslo

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