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  AK Sco  
000-BCX-130 (1409 observations)  
Scorpius Sequence
16 54 44.85 -36 53 18.6  (253.68687 -36.88850) Search nearby
B1950.0 16 51 23.20 -36 48 28.6
Proper motion
RA: -7.998 +/- 0.157 mas/yDec: -29.054 +/- 0.118 mas/ySource: Gaia DR1
Galactic coord. 347.378 +4.201
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
2MASS J16544485-3653185 AAVSO 1648-36 AN 221.1907
ASAS J165445-3653.3 CD-36 11056 CPD-36 7072
GSC 07371-00870 HBC 271 HD 152404
HIP 82747 HV 3057 IOMC 7371000015
IRAS 16514-3648 SAO 208174 TYC 7371-870-1
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Variability type
Spectral type F5V+F5Vea
Mag. range
8.7 - 12.8 V
Discoverer --
Outburst --
Period --
Rise/eclipse dur. --
Some references may be clicked to view in new window. Roll over index number to view submission details.
1 Otero, Sebastian Alberto Spectroscopic orbital period 13.609 d. (2009ApJ...698L.108G).
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Click reference title/citation to view in new window. Roll over index number to view submission details.
1 M. David, H. Hensberge, C. Nitschelm, 2013, A&A 557, A47 2013A&A...557A..47D
2 J. Alfonso-Garzon, A. Domingo, J.M. Mas-Hesse, A. Gimenez, 2012,
arXiv:1210.0821 [astro-ph.IM] (online info)
3 Gómez de Castro, A. I., 2009, AK Sco, First Detection of a Highly
Disturbed Atmosphere in a Pre-Main-Sequence Close Binary
4 P. Pereira, J.M. Santos-Junior, 2006, PZP 6, 10 2006PZP.....6...10P
5 Alencar, S. H. P., et al., 2003, The pre-main sequence spectroscopic binary
AK Scorpii revisited
6 The All Sky Automated Survey 2002AcA....52..397P
7 C.Hoffmeister, AN 278, 24-40, 1949. 1949AN....278...24H
8 H.H.Swope, HA 109, N9, 1943. 1942AnHar.109...31S
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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 = 7.68H = 7.06K = 6.50J - K = 1.17
AllWISE W1 = 5.48W2 = 5.06W3 = 3.01W4 = 0.90W1 - W2 = 0.42W3 - W4 = 2.11
Please review Digitized Sky Survey Acknowledgment and Copyright.
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Supporting Documents
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 YSO Program
Revision History
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4 Otero, Sebastian Alberto 2012-12-13 20:11 UTC Spectral type from 2009ApJ...698L.108G. Type from. 2003A&A...409.1037A.
3 Otero, Sebastian Alberto 2012-06-20 21:17 UTC Primary record creation. Maximum magnitude from ASAS-3 data. Minimum magnitude from 2003A&A...409.1037A.
2 Admin, VSX 2010-01-04 23:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-17 20:33 UTC Initial upload.