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Name
R Sgr
AAVSO UID
Constellation
J2000.0
B1950.0
19 13 45.83 -19 23 50.3
Proper motion
Galactic coord.
18.184 -14.073
Other names(Internal only)
Please note that aliases shown in grey link to obsolete records.
AAVSO 1910-19
ASAS J191642-1918.5
BD-19 5367
GSC 06304-02023
HD 180275
HIP 94738
IRAS 19137-1923
IRC -20549
RAFGL 2353
SAO 162394
TYC 6304-2023-1
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Variability type
M
Spectral type
M4e-M6e
Mag. range
6.7 - 13.0 V
Discoverer
Norman Pogson (1858)
Epoch
Outburst
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Period
268.5 d
Rise/eclipse dur.
46% (124 d)
Remarks
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1
GCVS Team
P var. Max = 2405776 + 271.0d*E (JD2399500 - 2407500); Max = 2407115 + 264.2d*E (JD2407100 - 9500); Max = 2418125 + 269.65d*E (JD2409500 - 19500); Max = 2433137 + 267.90d*E (JD2419500 - 36000); since JD2436000 - see Table.
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References
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1
G.Pojmanski, Acta Astronomica 52, 397, 2002.
2002AcA....52..397P
2
Cannon, A. J., 1907, Second catalogue of variable stars
1907AnHar..55....1C
3
T. Karlsson, Maxima of Mira stars
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4
General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
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Location
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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 = 3.25 H = 2.36 K = 1.92 J - K = 1.32
AllWISE
W3 = 0.87 W4 = 0.39 W3 - W4 = 0.48
APASS-DR9
B = 12.61 V = 11.08 g' = 11.14 B - V = 1.53
GALEX-DR5
NUV = 21.42
Images
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Supporting Documents
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Campaigns/Programs
LPV Program
Revision History
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