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Name
  BB Sgr  
AAVSO UID
000-BCD-416 (1025 observations)  
Constellation
Sagittarius Sequence
J2000.0
18 50 59.87 -20 17 42.8  (282.74946 -20.29522) Search nearby
B1950.0 18 48 01.97 -20 21 17.4
Proper motion
RA: 0.392 +/- 0.062 mas/yDec: -5.078 +/- 0.040 mas/ySource: Gaia DR1
Galactic coord. 14.669 -9.007
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
AAVSO 1845-20 AN 40.1908 ASAS J185100-2017.7
ASASSN-V J185100.72-201624.3 BD-20 5286 CPD-20 7221
HD 174383 HIP 92491 HV 3082
IRAS 18480-2021 SAO 187349  
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Variability type
DCEP
Spectral type F6-K0I:
Mag. range
6.64 - 7.25 V
Discoverer Annie J. Cannon (1908)
Epoch
03 Aug 1957 (HJD 2436053.535) Ephemeris
Outburst --
Period 6.63703 d
Rise/eclipse dur. 29%  (46.2 h)
Remarks
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1 GCVS Team VB A (B = V4088 Sgr, 7.49m - 7.87m, 93.5", 102deg). In the region of the open cluster Cr394.
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References
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1 T. Jayasinghe, K. Z. Stanek, C. Kochanek, et al., 2019 (in preparation) --
2 Photoelectric observations of Cepheids in UBV(RI)c (Berdnikov, 2008) 2008yCat.2285....0B
3 Pojmanski, G., 2002, The All Sky Automated Survey 2002AcA....52..397P
4 F.M.Bateson, A.F.Jones, I.Stranson, Charts for Southern Variables. ser.4,
1967-68.
--
5 Th.Walraven, A.B.Mueller, P.Th.Oosterhoff, BAN 14, 81, 1958. 1958BAN....14...81W
6 Dunér, N. C.; et al., 1914, Benennung von neu entdeckten veränderlichen
Sternen
1914AN....199...65D
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 = 5.23H = 4.79K = 4.57J - K = 0.66
AllWISE W1 = 4.46W2 = 4.21W3 = 4.43W4 = 4.33W1 - W2 = 0.24W3 - W4 = 0.10
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 18 50 59.87 -20 17 42.8 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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Stellar Association Membership
 Collinder 394 Open Cluster 2012A&A...548A..97Z
Revision History
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4 Fernig, Leo 2022-06-29 19:58 UTC Discoverer updated from 1914AN....199...65D page 84
3 Otero, Sebastian Alberto 2016-10-14 08:04 UTC Period and rise duration from ASAS-3 data. Range from ASAS-3, Berdnikov and HIPPARCOS data. Spectral type from Skiff (2014).
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.