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Latest Details
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Name
  del Cir  
AAVSO UID
000-BBV-967 (No observations)  
Constellation
Circinus Sequence
J2000.0
15 16 56.90 -60 57 26.1  (229.23708 -60.95725) Search nearby
B1950.0 15 12 53.09 -60 46 24.8
Proper motion
RA: -1.90 +/- 0.26 mas/yDec: -3.06 +/- 0.25 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 319.688 -2.911
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
CD-60 5539 CPD-60 5701 HD 135240
HIP 74778 HR 5664 NSV 6998
SAO 253084    
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Variability type
EA
Spectral type O7III/V+O9.5V
Mag. range
5.04 - 5.20 V
Discoverer --
Epoch
26 Jan 1990 (HJD 2447918.385) Ephemeris
Outburst --
Period 3.902476 d
Rise/eclipse dur. 14%  (13.11 h)
Remarks
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1 Otero, Sebastian Alberto B0.5V companion
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References
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1 Penny, L. R.; Seyle, D.; Gies, D. R.; et al., 2001, Tomographic Separation
of Composite Spectra. VII. The Physical Properties of the Massive Triple
System HD 135240 (δ Circini)
2001ApJ...548..889P
2 Perryman, M. A. C.; et al., 1997, The HIPPARCOS and TYCHO catalogues 1997HIP...C......0E
3 D.J.Stickland, R.H.Koch, I.Pachoulakis, R.J.Pfeiffer, Obs 113, No.1114,
139, 1993.
1993Obs...113..139S
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 = 5.15H = 5.22K = 5.18J - K = -0.04
AllWISE W1 = 5.32W2 = 5.23W3 = 5.35W4 = 5.22W1 - W2 = 0.09W3 - W4 = 0.13
Images
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Supporting Documents
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Stellar Association Membership
 ASCC 79 Open Cluster 2012A&A...548A..97Z
Revision History
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4 Otero, Sebastian Alberto 2021-07-19 20:26 UTC Epoch from Hipparcos data. Eclipse duration from 2001ApJ...548..889P.
3 Otero, Sebastian Alberto 2009-11-24 09:46 UTC Amplitude corrected.
2 Otero, Sebastian Alberto 2006-07-31 21:59 UTC Revised classification.
1 Admin, VSX 2005-12-18 01:33 UTC Initial database population.