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Details for Revision 2
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Name
  U Gru  
AAVSO UID
000-BDQ-967 (No observations)  
Constellation
Grus Sequence
J2000.0
21 31 48.77 -45 02 42.4  (322.95321 -45.04511) Search nearby
B1950.0 21 28 34.19 -45 15 58.1
Galactic coord. 354.930 -46.691
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
2MASS J21314876-4502423 AN 79.1911 ASAS J213148-4502.7
ASASSN-V J213148.73-450242.0 CD-45 14361 CPD-45 10157
GSC 08423-00607 HV 3343 PPM 327300
TIC 147201138 TYC 8423-607-1 UCAC4 225-189298
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Variability type
EA/SD
Spectral type A5
Mag. range
11.0 - 14.0 p
Discoverer --
Epoch
19 Jul 1889 (HJD 2411202.754) Ephemeris
Outburst --
Period 1.88048 d
Rise/eclipse dur. 15%  (6.8 h)
Remarks
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1 Otero, Sebastian Alberto Min II= 11.23 V.
2 GCVS Team Depth of Min II 0.05m. d = 0.011P.
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References
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1 Kochanek, C. S.; et al., 2017, The All-Sky Automated Survey for Supernovae
(ASAS-SN) Light Curve Server v1.0
2017PASP..129j4502K
2 M.E. Lohr et al., 2015, A&A, 578A, 136 2015A&A...578A.136L
3 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
4 F.M.Bateson, M.Morel, R.Winnett, Charts for southern variables, ser. N10,
1979.
--
5 C.Payne-Gaposchkin, HB N889, 1932. 1932BHarO.889....7P
6 Dunér, N. C.; Hartwig, E.; Muller, G., 1912, Benennung von neu entdeckten
veränderlichen Sternen
1912AN....191..341.
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Supporting Documents
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Revision History
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5 Fernig, Leo 2022-11-15 22:35 UTC Discoverer updated from 1912AN....191..341. page 356.
4 Otero, Sebastian Alberto 2020-05-01 02:41 UTC Period and epoch from ASAS-3 data. Range from ASAS-SN data.
3 Bernhard, Klaus 2015-10-07 23:38 UTC Update from [2015A&A...578A.136L].
2 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.