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Name
U Sgr
AAVSO UID
Constellation
J2000.0
B1950.0
18 28 56.62 -19 09 42.6
Proper motion
RA: -1.762 +/- 0.070 mas/y Dec: -6.161 +/- 0.052 mas/y Source: Gaia DR1
Galactic coord.
13.706 -4.460
Other names(Internal only)
AAVSO 1826-19
BD-19 5047
CPD-19 6907
HD 170764
HIP 90836
HR 6947
SAO 161571
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Variability type
DCEP
Spectral type
F5Ib-G1.5Ib
Mag. range
6.28 - 7.15 V
Discoverer
Schwab (1901)
Epoch
Outburst
--
Period
6.745226 d
Rise/eclipse dur.
29% (46.95 h)
Remarks
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1
GCVS Team
The member of the open cluster M25 (IC 4725). P var. Max = 2416628.046 + 6.744925d*E (JD2404480 - 30115) [A.V.Nielsen, Aarhus Medd N24, 1954.]; since JD2430115 - see Table. [A/H] = 0.1.
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References
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1
E.G.Schmidt, ApJ 165, 335, 1971.
1971ApJ...165..335S
2
A.Sandage, ApJ 131, N3, 610, 1960.
1960ApJ...131..610S
3
Cannon, A. J., 1907, Second catalogue of variable stars
1907AnHar..55....1C
External Links
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Location
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AAVSO Variable Star Plotter
AAVSO Light Curve
AAVSO WebObs
APASS
AAVSOnet EPD
SIMBAD
SIMBAD Clickable Map
SIMBAD Coordinate query
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
NSVS
CRTS
ZTF
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 = 4.48 H = 3.91 K = 3.93 J - K = 0.55
AllWISE
W1 = 3.95 W2 = 3.65 W3 = 3.95 W4 = 3.86 W1 - W2 = 0.30 W3 - W4 = 0.09
APASS-DR9
Images
Please review Digitized Sky Survey Acknowledgment and Copyright .
Supporting Documents
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Stellar Association Membership
IC 4725
Open Cluster
2012A&A...548A..97Z
Revision History
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