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[vsnet-obs 38316] V838 Mon (ABG, Feb. 4-8)
- Date: Mon, 11 Feb 2002 23:59:25 +0100
- To: vsnet-obs@kusastro.kyoto-u.ac.jp
- From: "Bjorn H. Granslo" <b.h.granslo@astro.uio.no>
- Subject: [vsnet-obs 38316] V838 Mon (ABG, Feb. 4-8)
- Delivered-To: vsnet-obs@kusastro.kyoto-u.ac.jp
- Sender: owner-vsnet-obs@ooruri.kusastro.kyoto-u.ac.jp
Norwegian Astronomical Society - Variable Star Section
Observations of V838 Monocerotis (2002 Feb. 4-8 UT)
Observer: Birger Andresen (ABG).
Location: Trondheim, Norway.
Instruments: 70-mm refractor (L70); 7x50 binoculars.
Magnitude references: V-magnitudes from NAS.VSS sequence.
Observations: Visual, Argelander step estimates.
Conditions: Good (Feb. 4); somewhat hazy (Feb. 8).
Object YYYYMMDD(UT) Mag Obs Instrument Ref. Notes
MONV838 20020204.822 7.6 ABG B7x50 NAS Active
MONV838 20020208.951 7.6 ABG L70;24X NAS Active
Observation from Feb. 4.822 UT: G 1 V; V 2 H (class 1).
Observation from Feb. 8.951 UT: F 4 V; V 2 H; V 5 J (class 2).
Comparison stars (NAS.VSS sequence with V-magnitudes derived
from UBV and Tycho-2 catalogues):
F = HD 53085 (7.20 mag); G = HD 53056 (7.47 mag).
H = HD 51871 (7.75 mag); J = HD 53299 (8.17 mag).
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