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Norwegian Astronomical Society - Variable Star Section
Variable star observations for 2003 Apr 13-21 UT (J.D. 2452743 - 2452750)
Observer: Birger Andresen (ABG).
Location: Trondheim, Norway.
Observations: Visual, Argelander step estimates.
Variable YYYYMMDD.DDD Magn Obs Instrum. Mag.ref. Codes Estimates [Class]
CEPdelta 20030420.956 3.9 ABG N TYC1-V KT C4V3G [1]
CRBR 20030413.881 7.4 ABG B7x50 NAS.VSS KY D2V1E [1]
CRBR 20030417.097 7.2 ABG L70;24X NAS.VSS HKY C5V2E [2]
CRBR 20030417.948 7.2 ABG L70;24X NAS.VSS HKY C5V2E [2]
CRBR 20030418.917 7.0 ABG B7x50 NAS.VSS KY C5V2D;V4E [1]
CRBR 20030419.917 7.0 ABG B7x50 NAS.VSS KY C5V2D;V4E [1]
CRBR 20030421.033 7.0 ABG B7x50 NAS.VSS KY C4V4E [1]
CYGSS 20030417.972 11.8 ABG C280;140X NAS.VSS HKT J4V4L;V=K [2]
CYGSS 20030420.997 10.1 ABG C280;140X NAS.VSS KTY F3V2G [1]
Sequence for Delta Cephei :
V-magnitudes from Tycho-1 catalogue :
C = Iota Cep (3,50 mag) D = Alfa Lac (3,78 mag)
E = Eps Cep (4,18 mag) F = Nu Cep (4,25 mag)
G = Xi Cep (4,26 mag) H = Beta Lac (4,42 mag)
Sequence for R Corona Borealis :
VT-magnitudes from Tycho-2 catalogue [A-N], BAA.VSS [P-U], AAVSO [W-X] :
A = Pi CrB ( 5,69 mag) B = Ups CrB ( 5,79 mag)
C = HR 5813 ( 6,50 mag) D = HD 144287 ( 7,19 mag)
E = HD 141352 ( 7,48 mag) F = HD 140913 ( 8,12 mag)
VT-magnitudes from Tycho-2 [A-J], V-magnitudes from Henden [K-M] :
E = TYC 3196-1227 ( 9,47 mag) F = TYC 3196-0785 ( 9,80 mag)
G = TYC 3196-1019 (10,36 mag) H = TYC 3196-0857 (10,92 mag)
J = TYC 3196-1061 (11,36 mag) K = TYC 3196-0829 (11,86 mag)
L = GSC 3196-0831 (12,28 mag) M = GSC 3196-0715 (12,81 mag)
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