WDS 18152-2023 CHR 255 Aa,Ab : NOTES
 
 
discov_num notes refcode
BU 286 16 Sgr. A is a spectroscopic binary.
CHR 255 Aa,Ab: Garmany et al. (1980 ApJ 242, 1063) observed a smoothly-varying
velocity indicating that the A component is probably a single-lined
binary with a period of 11 d.
Lindroos (1985) provided the classification of the B component and Lnd1985
determines a distance of 1.2 kpc. Msn1998a
SNA 83 16 Sgr. SB. See discussion of system by Sana et al. 2014). Sna2014
 
 
REFERENCES
 
 
refcode metd author reference
Lnd1985 - Lindroos, K.P. 1985A&AS...60..183L
Lnd1985 A&AS 60, 183, 1985
Msn1998a Sc j Mason, B.D., Gies, D.R., Hartkopf, W.I., Bagnuolo, Jr., W.G., 1998AJ....115..821M
Msn1998a ten Brummelaar, T.A., & McAlister, H.A.
Msn1998a AJ 115, 821, 1998
Sna2014 Kv j Sana, H., LeBouquin, J.-B., Lacour, S., Berger, J.-P., Duvert, G., Gauchet, L., 2014ApJS..215...15S
Sna2014 +A Norris, B., Olofsson, J., Pickel, D., Zins, G., Absil, O., de Koter, A.,
Sna2014 Kratter, K., Schnurr, O., & Zinnecker, H.
Sna2014 ApJS 215, 15, 2014
Sna2014 (NACO companions in Table 6 assumed physical if quoted probability of spurious
Sna2014 detection <10%, optical if >90%, otherwise indeterminate)
 
 
DISCOVERER
 
 
idgroup discov author
1 BU Burnham, S.W. (BU 1 - 81)
179 CHR Center for High Ang. Res. Astronomy (speckle interferometry systems)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18152-2023 CHR 255 Aa,Ab 2006 2 150 0.1 5.95   O9IV N 181512.97-202316.7
18152-2023 CHR 255 Aa,Ab 2013 6 156 0.1 5.95   O9IV N 181512.97-202316.7
18152-2023 CHR 255 Aa,Ab 2014 7 156 0.1 6.50 6.90 O9IV N 181512.97-202316.7
18152-2023 CHR 255 Aa,Ab 2017 8 158 0.1 6.50 6.90 O9IV N 181512.97-202316.7
18152-2023 CHR 255 Aa,Ab 2019 9 156 0.1 6.50 6.90 O9IV N 181512.97-202316.7

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