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Latest Details
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Name
  del Sco  
AAVSO UID
000-BBW-851 (7447 observations)  
Constellation
Scorpius Sequence
J2000.0
16 00 20.01 -22 37 18.2  (240.08337 -22.62172) Search nearby
B1950.0 15 57 22.36 -22 28 51.0
Proper motion
RA: -10.21 +/- 1.01 mas/yDec: -35.41 +/- 0.71 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 350.097 +22.490
Other names

(Internal only)
7 Sco AAVSO 1554-22 BD-22 4068
CD-22 11292 CPD-22 6106 HD 143275
HIP 78401 HR 5953 IRC -20303
SAO 184014    
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Variability type
GCAS
Spectral type B0.3IVe+B3:V
Mag. range
1.59 - 2.32 V
Discoverer Otero, S. A.
Epoch
--
Outburst --
Period --
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto Orbital period 10.81 y. Periastron passage triggers Be activity.
2 Otero, Sebastian Alberto Eccentric binary system.
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References
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1 Meilland, A., et al. (2011) 2011arXiv1106.1746M
2 Miroshnichenko, A.S., et al. (2001) 2001A&A...377..485M
3 -- --
4 Delta Sco webpage --
5 S. Otero, VSNET Alert No. 5118, 2000
(http://www.kusastro.kyoto-u.ac.jp/vsnet/Mail/alert5000/msg00118.html).
--
External Links
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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 = 2.41H = 2.43K = 2.43J - K = -0.02
AllWISE W3 = 1.11W4 = 0.57W3 - W4 = 0.55
Images
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Supporting Documents
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Revision History
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4 Otero, Sebastian Alberto 2011-06-21 14:56 UTC Reference added. Range updated from http://varsao.com.ar/delta_Sco.htm.
3 Otero, Sebastian Alberto 2011-06-21 14:53 UTC Spectral type asn remarks added.
2 Otero, Sebastian Alberto 2007-03-03 21:09 UTC Updated photoelectric and visual lightcurve.
1 Admin, VSX 2005-12-17 20:33 UTC Initial database population.