WDS 15118+6151 VLM 3 BC : NOTES
 
 
discov_num notes refcode
STF1927 A and B are both W UMa systems, BV and BW Dra, periods 0.29 and 0.35d.
Spectra F9V, F8V and G3V and G0V.
NLTT 39621/39620 Chm2004
AB: HJL 215. HJL1986
 
 
REFERENCES
 
 
refcode metd author reference
Chm2004 E - Chaname, J. & Gould, A. 2004ApJ...601..289C
Chm2004 ApJ 601, 289, 2004
Chm2004 (Photometry, coordinates, and astrometry from rNLTT. Astrometry from early
Chm2004 versions of 2MASS and UCAC, with date given only as "circa 2000". Measures
Chm2004 identical to discovery observations - predominantly close pairs - were assumed
Chm2004 not new observations, so not included in WDS. Similar concerns when primary and
Chm2004 secondary magnitudes or proper motions were the same.)
HJL1986 Pa - Halbwachs, J.L. 1986A&AS...66..131H
HJL1986 A&AS 66, 131, 1986
HJL1986 (Possible CPM pairs from AGK2/3. Coarse astrometry, incl. mean 1950 dates, added
HJL1986 only for previously unknown pairs. Table 1: HJL 1 - 326, Table 2: HJL1001 - 1113)
 
 
DISCOVERER
 
 
idgroup discov author
1 STF Struve, F.G.W.
34 VLM Vollmann, W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15118+6151 VLM 3 BC 2006 2 33 19.0 8.81 13.40 D 151150.29+615140.5
15118+6151 VLM 3 BC 2013 4 37 19.8 8.81 13.40 N 151150.29+615140.5
15118+6151 VLM 3 BC 2015 5 37 18.8 8.81 13.40 N 151150.29+615140.5

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