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Details for Revision 4
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Name
  Z Cha  
AAVSO UID
000-BCV-463 (101585 observations)  
Constellation
Chamaeleon Sequence
J2000.0
08 07 27.74 -76 32 00.7  (121.86558 -76.53353) Search nearby
B1950.0 08 08 49.22 -76 23 09.0
Galactic coord. 289.186 -22.083
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
1RXH J080727.0-763200 1RXS J080728.8-763157 1SWXRT J080727.4-763200
1SXPS J080727.7-763159 1WGA J0807.4-7632 2RXP J080727.4-763159
2RXS J080728.6-763157 3XMM J080727.7-763200 4XMM J080727.7-763200
AAVSO 0809-76 ASAS J080728-7632.0 Downes Z Cha
GALEX J080727.9-763200 GSC 09394-02439 Gaia DR3 5210507882302442368
SON 4893 UCAC4 068-007256 WD J080727.75-763200.67
XMMOM J080727.9-763200 XMMSL1 J080726.5-763200 XMMSL2 J080725.6-763204
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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: 18.4 Gmag. star 0.8" to the SSE and 17.4 Vmag. 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 Gaia collaboration; et al., 2022, Gaia Data Release 3 (Gaia DR3) Part 4
Variability		 2022yCat.1358....0G
2 Catalogue of Stellar Spectral Classifications (Skiff, 2009-2016) 2014yCat....102023S
3 Catalogue of Stellar Spectral Classifications (Skiff, 2009-2016) 2014yCat....102023S
4 D.H. Jones et al., 2009, MNRAS 399, 683 (spectrum) 2009MNRAS.399..683J
5 R.A. Downes et al., 2001, PASP 113, 764 (2006 archival version) 2005JAD....11....2D
6 J.M. Kreiner, 2004, Acta Astronomica 54, 207 2004AcA....54..207K
7 R.A. Downes et al., 2001, PASP 113, 764 2001PASP..113..764D
8 N.Vogt, F.M.Bateson, AsAp Suppl 48, N3, 383, 1982. 1982A&AS...48..383V
9 F.M.Bateson, IBVS N678, 1972. 1972IBVS..678....2B
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Supporting Documents
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Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
5 Otero, Sebastian Alberto 2024-03-25 21:15 UTC Period, epoch and minimum magnitude from AAVSO data. Gaia DR3 position.
4 Otero, Sebastian Alberto 2017-04-01 01:21 UTC Spectral type from Skiff (2014). UCAC4 position.
3 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
2 Admin, VSX 2009-10-30 01:30 UTC Update from [2004AcA....54..207K].
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.

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