WDS 15292+8027 STF 1972 AB (Pi1 UMi) : NOTES
 
 
discov_num notes refcode
STF1972 LDS1823. A is a spectroscopic binary. Composite spectrum:
G0IV-V+G8IV-V. B is BD+80@481, and is also a spectroscopic binary.
AB: NLTT 40576/40590 Chm2004
AB: HJL 224. HJL1986
AB: H 4 90. MEv2010
 
 
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)
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
 
 
DISCOVERER
 
 
idgroup discov author
1 LAF Lafreniere, D., Doyon, R., Marois, C., Nadeau, D., Oppenheimer, B.R., Roche, P.F.,
1 LAF Rigaut, F., Graham, J.R., et al.
10 LAF Lafreniere, D., Jayawardhana, R., Janson, M., Helling, C., Witte, S., &
10 LAF Hauschildt, P.
13 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15292+8027 STF1972 AB 2007 76 79 31.3 6.64 7.30 NZDV 152911.19+802655.0
15292+8027 STF1972 AB 2008 77 79 31.3 6.64 7.30 NZDV 152911.19+802655.0
15292+8027 STF1972 AB 2010 79 79 31.4 6.64 7.30 NZDV 152911.19+802655.0
15292+8027 STF1972 AB 2013 88 79 31.4 6.64 7.30 G0IV-V NZDV 152911.19+802655.0
15292+8027 STF1972 AB 2015 90 78 31.8 6.64 7.30 G0IV-V NZ V 152911.19+802655.0
15292+8027 STF1972 AB 2016 96 81 31.8 6.64 7.30 G0IV-V NZ V 152911.19+802655.0
15292+8027 STF1972 AB 2017 97 80 31.8 6.64 7.30 G0IV-V NZ V 152911.19+802655.0
15292+8027 STF1972 AB 2018 99 80 31.6 6.64 7.30 G0IV-V NZ V 152911.19+802655.0

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