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Name
BL Tel
AAVSO UID
Constellation
J2000.0
B1950.0
19 02 43.87 -51 29 42.3
Proper motion
RA: -6.171 +/- 0.034 mas/y Dec: 0.251 +/- 0.026 mas/y Source: Gaia DR1
Galactic coord.
345.525 -23.155
Other names(Internal only)
AAVSO 1858-51
AN 950.1935
CD-51 11917
CPD-51 11113
HD 177300
HIP 93844
HV 9587
SAO 245923
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Variability type
EA/GS+SRD
Spectral type
F4Ib+M
Mag. range
7.09 - 9.08 V
Discoverer
--
Epoch
Outburst
--
Period
778.0 d
Rise/eclipse dur.
10% (78 d)
Remarks
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1
Otero, Sebastian Alberto
Possible UU Her-subtype (double mode pulsator, P0= 92.5 d, P1= 64.8 d.)
2
GCVS Team
The depth of Min II - 0.1m pg. Semiregular variability of pulsational character (7.09m - 7.26m V) is observed outside eclipses; sometimes it may be represented by P = 65.1d, but sometimes (1969) it cannot be traced.
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References
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1
LTPV I, II, III, IV
Sterken, C., Manfroid, J. et al., 1995, A&AS, 113, 31
2
The All Sky Automated Survey
Pojmanski, G., 2002, Acta Astronomica, 52, 397
3
The Hipparcos Catalogue
Perryman, M.A.C., et al., 1997, A&A, 323, 49
4
Zsoldos, E., 1994, A&A, 286, 870
1994A&A...286..870Z
5
A.M. van Genderen, AsAp 119, 265, 1983.
1983A&A...119..265V
External Links
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Location
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AAVSO Variable Star Plotter
AAVSO Light Curve
AAVSO WebObs
APASS
AAVSOnet EPD
SIMBAD
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VizieR Search
Aladin Java Applet
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GCVS
ASAS-SN Sky Patrol
Hipparcos Epoch Photometry Data
Hipparcos Epoch Photometry Plot
ASAS Light Curve
CRTS
SuperWASP
Kamogata Wide-field Survey (KWS)
O-C Gateway (name)
O-C Gateway (coords)
Atlas of O-C Diagrams
Lichtenknecker Database
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Catalog Data
Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service . These data may not be complete.
2MASS
J = 5.85 H = 5.25 K = 4.97 J - K = 0.88
AllWISE
W1 = 4.71 W2 = 4.51 W3 = 4.53 W4 = 4.36 W1 - W2 = 0.19 W3 - W4 = 0.17
APASS-DR9
B = 7.80 V = 7.21 g' = 7.56 r' = 7.05 i' = 6.82 B - V = 0.60
GALEX-DR5
FUV = 18.02 NUV = 13.50 FUV - NUV = 4.52
Images
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Supporting Documents
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Campaigns/Programs
Binocular program
Revision History
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