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Name
S Lib
AAVSO UID
Constellation
J2000.0
B1950.0
15 18 31.34 -20 12 33.2
Proper motion
RA: -4.010 +/- 0.116 mas/y Dec: -16.277 +/- 0.077 mas/y Source: Gaia DR1
Galactic coord.
344.240 +30.203
Other names
(Internal only)
Please note that aliases shown in grey link to obsolete records.
AAVSO 1515-20
ASAS J152124-2023.3
ASASSN-V J152123.94-202318.6
BD-19 4084
CPD-19 5800
HD 136458
HIP 75144
SAO 183401
TYC 6179-1305-1
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Variability type
M
Spectral type
M0e-M6e
Mag. range
7.5 - 13.00 V
Discoverer
Alphonse Borrelly (1872)
Epoch
Outburst
--
Period
192.9 d
Rise/eclipse dur.
49% (95 d)
Remarks
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1
GCVS Team
P var. Max = 2405692 + 192.14d*E (JD2402700 - 24000); Max = 2424141 + 194.74d*E (JD2424000 - 30500); Max = 2431900 + 190.34d*E (JD2430500 - 37200); Max = 2439203 + 197.61d*E (JD2437200 - 39300); since JD2441000 - see Table. Mean value of the period is given in the Table. A var (1.8m <= A <= 5m).
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References
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1
Samus, N. N.; Kazarovets, E. V.; Durlevich, O. V.; et al., 2017, General Catalogue of Variable Stars: Version GCVS 5.1 (November 2019)
2017ARep...61...80S
2
G.Pojmanski, Acta Astronomica 52, 397, 2002.
2002AcA....52..397P
3
Cannon, A. J., 1907, Second catalogue of variable stars
1907AnHar..55....1C
4
T. Karlsson, Maxima of Mira stars
--
5
General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N. Kholopov et al.
--
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Location
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AAVSO Variable Star Plotter
AAVSO Light Curve
AAVSO WebObs
APASS
AAVSOnet EPD
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NSVS
CRTS
ZTF
SuperWASP
Pan-STARRS1 Data
Pan-STARRS1 Images
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 = 5.75 H = 4.96 K = 4.46 J - K = 1.29
AllWISE
W1 = 4.38 W2 = 3.81 W3 = 3.54 W4 = 3.27 W1 - W2 = 0.57 W3 - W4 = 0.27
APASS-DR9
B = 11.04 V = 9.75 g' = 10.40 r' = 9.02 i' = 7.52 B - V = 1.29
GALEX-DR5
NUV = 19.55
Images
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Supporting Documents
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Campaigns/Programs
LPV Program
Legacy LPV South
Revision History
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