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Details for Revision 2
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Name
  X Sgr  
AAVSO UID
000-BCW-977 (4229 observations)  
Constellation
Sagittarius Sequence
J2000.0
17 47 33.63 -27 49 50.9  (266.89013 -27.83081) Search nearby
B1950.0 17 44 24.71 -27 48 49.7
Galactic coord. 1.166 +0.209
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
3 Sgr AAVSO 1741-27 ASAS J174734-2749.8
CD-27 11930 CPD-27 5764 GDS_J1747285-274951
GDS_J1747292-274859 GDS_J1747317-274851 GDS_J1747324-275052
GDS_J1747338-274841 GDS_J1747377-275028 HD 161592
HIP 87072 HR 6616 IRC -30324
SAO 185755    
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Variability type
DCEP
Spectral type F5-G2II
Mag. range
4.2 - 4.9 V
Discoverer --
Epoch
04 Jun 1970 (HJD 2440741.7) Ephemeris
Outburst --
Period 7.01283 d
Rise/eclipse dur. 36%  (60.6 h)
Remarks
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1 GCVS Team P var. Max = 2410006.22 + 7.01206d*E (JD2403000 - 17000); Max = 2424248.11 + 7.01245d*E (JD2417000 - 34500); since JD2434500 - see Table.
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References
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1 T. Jayasinghe, K. Z. Stanek, C. Kochanek, et al., 2019 (in preparation) --
2 Breitfelder, J.; et al., 2016, Observational calibration of the projection
factor of Cepheids. II. Application to nine Cepheids with HST/FGS parallax
measurements
2016arXiv160104727B
3 M. Hackstein, Ch. Fein, M. Haas et al., 2015, AN 336, 590 2015AN....336..590H
4 Pojmanski, G., 2002, The All Sky Automated Survey 2002AcA....52..397P
5 H.H.Swope, HA 109, N1, 1940. 1940AnHar.109....1S
6 Cannon, A. J., 1907, Second catalogue of variable stars 1907AnHar..55....1C
7 General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al.
--
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Supporting Documents
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Revision History
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5 Fernig, Leo 2022-04-22 13:34 UTC Discoverer updated from 1907AnHar..55....1C page 21
4 Otero, Sebastian Alberto 2021-08-13 18:42 UTC Period from ASAS-3 and AAVSO data.
3 Billiaert, Bruno 2016-02-03 23:06 UTC Period and epoch from 2016arXiv160104727B. Range from HIPPARCOS and GCPD dfata.
2 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.