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Latest Details
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Name
  IU Cha  
AAVSO UID
--  
Constellation
Chamaeleon Sequence
J2000.0
11 25 47.95 -76 30 29.1  (171.44979 -76.50808) Search nearby
B1950.0 11 23 56.27 -76 13 58.0
Proper motion
RA: 2.168 +/- 0.746 mas/yDec: -11.442 +/- 0.762 mas/ySource: Gaia DR1
Galactic coord. 297.886 -14.483
Other names

(Internal only)
1RXS J112545.4-763035 ASAS 112548-7630.5 ASAS J112545-7630.5
ASAS J112548-7630.5 GSC 09411-01577 HD 99558
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Variability type
RS
Spectral type K0III
Mag. range
9.0 - 9.2 V
Discoverer --
Epoch
03 Apr 2006 (HJD 2453828.7) Ephemeris
Outburst --
Period 21.608 d
Rise/eclipse dur. --
Remarks
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References
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1 E.V. Kazarovets, N.N. Samus, O.V. Durlevich, N.N. Kireeva, E.N. Pastukhova,
2015, IBVS 6151
2015IBVS.6151....1K
2 M. Kiraga, 2012, Acta Astronomica 62, 67 2012AcA....62...67K
3 K. Bernhard, C. Bernhard, M. Bernhard, 2009, OEJV 98 2009OEJV...98....1B
4 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
5 Catalogue of Stellar Spectral Classifications (Skiff, 2005) 1975MSS...C01....0H
External Links
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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 = 6.74H = 6.13K = 5.94J - K = 0.80
AllWISE W1 = 6.00W2 = 5.74W3 = 5.76W4 = 5.66W1 - W2 = 0.26W3 - W4 = 0.10
APASS-DR9 B = 10.33g' = 10.42
GALEX-DR5 FUV = 20.29NUV = 16.59FUV - NUV = 3.70
Images
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Supporting Documents
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Revision History
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4 Admin, VSX 2015-11-20 03:03 UTC Update from [2015IBVS.6151....1K].
3 Admin, VSX 2009-02-14 02:50 UTC Update from [2009OEJV...98....1B].
2 Admin, VSX 2007-04-04 10:06 UTC Position and spectral type from Brian Skiff's MKTypes.dat [http://vizier.u-strasbg.fr/viz-bin/Cat?III/233B].
1 Admin, VSX 2005-12-18 01:33 UTC Initial database population.