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Name
T UMi
AAVSO UID
Constellation
J2000.0
B1950.0
13 33 37.91 +73 41 11.4
Proper motion
RA: -13.3 +/- 1.5 mas/y Dec: 7.7 +/- 1.9 mas/y Source: UCAC4
Galactic coord.
118.714 +43.341
Other names(Internal only)
Please note that aliases shown in grey link to obsolete records.
AAVSO 1332+73
AN 57.1903
ASASSN-V J133441.07+732553.4
HD 118556
IRC +70119
NSVS J1334407+732551
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Variability type
SR
Spectral type
M4e-M6e
Mag. range
7.8 - 15 V
Discoverer
Mrs. L. Ceraski (February 13, 1902)
Epoch
Outburst
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Period
115.7 d
Rise/eclipse dur.
45% (52 d)
Remarks
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1
Otero, Sebastian Alberto
Period decreased from 315 to 230 d. between 1980 and 2008 and then the pulsation mode switched from M to SR with P= 113 d. (2011A&A...531A..88U ). Range in 2016 is V= 10.0 - 11.9.
2
GCVS Team
P var. Max = 2428332 + 315.48d*E (JD2416500 - 29500); Max = 2436415 + 310.05d*E (JD2429500 - 37200); Max = 2442389 + 315.5d*E (JD2437200 - 43600); since JD2443600 - see Table.
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References
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1
Uttenthaler, S.; van Stiphout, K.; Voet, K.; et al., 2011, The evolutionary
2011A&A...531A..88U
2
P.R. Wozniak, S.J. Williams, W.T. Vestrand, V. Gupta, AJ 128, 2965, 2004
2004AJ....128.2965W
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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External Links
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Location
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AAVSO WebObs
APASS
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GCVS
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NSVS
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SuperWASP
Pan-STARRS1 Data
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SkyMorph
Kamogata Wide-field Survey (KWS)
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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 = 4.45 H = 3.50 K = 2.89 J - K = 1.55
AllWISE
W3 = 2.27 W4 = 1.68 W3 - W4 = 0.59
APASS-DR9
B = 12.52 V = 11.02 g' = 11.92 r' = 10.31 B - V = 1.50
Images
Please review Digitized Sky Survey Acknowledgment and Copyright .
Supporting Documents
There are currently no supporting documents on file for this star.
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Campaigns/Programs
LPV Program
LPV Humps
Percy's Unusual LPVs
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
