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Name
  Z Cha  
AAVSO UID
000-BCV-463 (87899 observations)  
Constellation
Chamaeleon Sequence
J2000.0
08 07 27.74 -76 32 00.7  (121.86558 -76.53353) Search nearby
B1950.0 08 08 49.78 -76 23 11.7
Proper motion
RA: -38.7 +/- 2.6 mas/yDec: 52.2 +/- 3.3 mas/ySource: UCAC4
Galactic coord. 289.186 -22.083
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
1RXS J080728.8-763157 2RXS J080728.6-763157 AAVSO 0809-76
ASAS J080728-7632.0 Downes Z Cha GSC 09394-02439
SON 4893 UCAC4 068-007256  
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Variability type
UGSU+EA
Spectral type pec(UG)+M5.5e
Mag. range
11.5 - 16.2 V
Discoverer --
Epoch
13 Aug 2002 (HJD 2452500.0749) Ephemeris
Outburst --
Period 0.074499315 d  (107.279014 min)
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto VSP Note: 17.2 mag. star 7" to the E.
2 GCVS Team VB A (B 5.6"). Eclipses: Min = 2440264.68232 + 0.0744992195d*E + 7.88d*10**(-13)*E**2 [M.C.Cook, B.Warner, MN 196, 55P, 1981.]. D = 0.065P; d = 0.026P. Depth of Min: 1.73m - 2.11m B before the eclipse; 1.38m - 1.97m B after the eclipse. Periodic variations during Min light [B.Warner, MN 168, 235, 1974.]. Variations with P = 27.7s during a supermaximum [B.Warner, A.J.Brickhill, MN 182, 777, 1978.].
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References
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1 Catalogue of Stellar Spectral Classifications (Skiff, 2009-2016) 2014yCat....102023S
2 D.H. Jones et al., 2009, MNRAS 399, 683 (spectrum) 2009MNRAS.399..683J
3 R.A. Downes et al., 2001, PASP 113, 764 (2006 archival version) 2005JAD....11....2D
4 J.M. Kreiner, 2004, Acta Astronomica 54, 207 2004AcA....54..207K
5 R.A. Downes et al., 2001, PASP 113, 764 2001PASP..113..764D
6 N.Vogt, F.M.Bateson, AsAp Suppl 48, N3, 383, 1982. 1982A&AS...48..383V
7 F.M.Bateson, IBVS N678, 1972. 1972IBVS..678....2B
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Location    Go   
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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 = 13.97H = 13.56K = 13.31J - K = 0.65
AllWISE W1 = 13.06W2 = 12.85W3 = 12.68W1 - W2 = 0.21
APASS-DR9 B = 15.89V = 15.72g' = 15.73r' = 15.71i' = 15.90B - V = 0.17
Images
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Supporting Documents
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Campaigns/Programs
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Revision History
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4 Otero, Sebastian Alberto 2017-03-31 21:21 UTC Spectral type from Skiff (2014). UCAC4 position.
3 Admin, VSX 2010-01-04 23:43 UTC Position updated from the GCVS version of November 2009.
2 Admin, VSX 2009-10-29 21:30 UTC Update from [2004AcA....54..207K].
1 Admin, VSX 2005-12-17 20:33 UTC Initial upload.