WDS 01388-1758 LDS 838 (UV Cet) : NOTES
 
 
discov_num notes refcode
LDS 838 LUY 726-8. L 726-8 = UV Cet. Both components are active flare stars
According to Harrington & Behall the mass ratio is 0.487 +/- 0.011 and
the individual masses are 0.115 (0.008) 0.109 (0.008) Msun for A & B,
respectively. Hrr1973
See Baize & Petit (1989) catalog of doubles with variable component. Baz1989d
This pm star with flare characteristics is a difficult object. VBs1954
Magnitude uncertain due to flares. USN1988b
AB: Kervella et al. (2016) derive a new orbit for GJ 65 and determine
the following physical parameters:
masses (Msun): A = 0.1225 +- 0.0043 B = 0.1195 +- 0.0043
radii (Rsun): 0.165 +- 0.006 0.159 +- 0.006
[Fe/H] (dex): -0.03 +- 0.20 -0.12 +- 0.20
log (cgs): 5.092 +- 0.015 5.113 +- 0.015 Krv2016
 
 
REFERENCES
 
 
refcode metd author reference
Baz1989d - Baize, P. & Petit, M. 1989A&AS...77..497B
Baz1989d A&AS 77, 497, 1989
Hrr1973 H - Harrington, R.S. & Behall, A.L. 1973AJ.....78.1096H
Hrr1973 AJ 78, 1096, 1973
Hrr1973 (no dates given for measures; default date = decade of publication added.)
Krv2016 A j Kervella, P., Merand, A., Ledoux, C., Demory, B.-O., & Le Bouquin, J.-B. 2016A&A...593A.127K
Krv2016 +Kv A&A 593, A127, 2016
MnA2019 C j Mann, A.W., Dupuy, T., Kraus, A.L., Gaidos, E., Ansdell, M., Ireland, M., Rizzuto, 2019ApJ...871...63M
MnA2019 +orb A.C., Hung, C..-L., Dittmann, J., Factor, S., Feiden, G., Martinez, R.A.,
MnA2019 Ruiz-Rodriguez, D. & Chia Thao, P.
MnA2019 ApJ 871, 63, 2019
USN1988b Po j Geyer, D., Harrington, R., & Worley, C. 1988AJ.....95.1841G
USN1988b +orb AJ 95, 1841, 1988
USN1988b +H
VBs1954 Ma - Van Biesbroeck, G. 1954PYerO...8....6V
VBs1954 +Mb Pub. Yerkes Obs. 8, pt. 6, 1954
VBs1954 +orb
 
 
DISCOVERER
 
 
idgroup discov author
1 LDS Luyten p.m. catalog (from additional DD list)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
01388-1758 LDS 838 1997 82 291 0.7 12.70 13.20 dM5.5e NODP 013901.54-175701.8
01388-1758 LDS 838 2007 84 61 1.9 12.70 13.20 dM5.5e NODP 013901.54-175701.8
01388-1758 LDS 838 2010 85 41 2.1 12.70 13.20 dM5.5e NODP 013901.54-175701.8
01388-1758 LDS 838 2011 102 33 2.1 12.70 13.20 M5.5V+M6V NO P 013901.54-175701.8
01388-1758 LDS 838 2015 103 13 2.3 12.70 13.20 M5.5V+M6V NO P 013901.54-175701.8
01388-1758 LDS 838 2019 104 346 1.9 12.70 13.20 M5.5V+M6V NO P 013901.54-175701.8
01388-1758 LDS 838 2020 106 342 1.9 12.70 13.20 M5.5V+M6V NO P 013901.54-175701.8
01388-1758 LDS 838 2021 119 336 1.8 12.70 13.20 M5.5V+M6V NO P 013901.54-175701.8

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