WDS 20467+1607 STF 2727 AB (Gam2 Del) : NOTES
 
 
discov_num notes refcode
STF2727 gam Del. A premature orbit has been computed. 1865.74 observation of Tal1868
Talmadge lists 16.537 in the Table for the separation but 11.536 in
the notes. The 11.536 value is included.
NLTT 49870/49868 Chm2004
H 3 10. MEv2010
Toyota et al. (2009) monitored the RV of both the A and B components
every 1-2 months between 2003 Mar - 2007 Nov, using a high-dispersion
echelle (precision ~10 m/s). Standard deviations of the RVs of both
components are <40 m/s and velocities show no periodic variation.
These results rejects the association of a planet of mass > 1.8 Mjup
with either star. Toy2009
FYM 18 The purported AC pair was in error and has been deleted. FyM2014b
 
 
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.)
FyM2014b C - Fay, M. .
FyM2014b private communication
Hle1994 C j Hale, A. 1994AJ....107..306H
Hle1994 +orb AJ 107, 306, 1994
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
Tal1868 Ma - Talmage, C.G. ...................
Tal1868 Barclay Obs. 2, 1868
Toy2009 rv - Toyota, E., Itoh, Y., Ishiguma, S., Urakawa, S., Murata, D., Oasa, Y., 2008PASJ...61...19T
Toy2009 Matsuyama, H., Funayama, H., Sato, B., & Mukai, T.
Toy2009 PASJ 61, 19, 2009
 
 
DISCOVERER
 
 
discov author
CHM Chaname, J. & Gould, A.
TOY Toyota, E., Itoh, Y., Ishiguma, S., Urakawa, S., Murata, D., Oasa, Y.,
TOY Matsuyama, H., Funayama, H., Sato, B., & Mukai, T.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
20467+1607 STF2727 AB 2013 515 266 9.0 4.36 5.03 K1IV F7V +15 4255 NOD 204639.50+160727.4
20467+1607 STF2727 AB 2015 518 266 8.9 4.36 5.03 K1IV+F7V +15 4255 NO Z 204639.50+160727.4
20467+1607 STF2727 AB 2016 528 266 9.0 4.36 5.03 K1IV+F7V +15 4255 NO Z 204639.50+160727.4
20467+1607 STF2727 AB 2017 531 266 8.9 4.36 5.03 K1IV+F7V +15 4255 NO Z 204639.50+160727.4
20467+1607 STF2727 AB 2018 534 266 8.9 4.36 5.03 K1IV+F7V +15 4255 NO Z 204639.50+160727.4
20467+1607 STF2727 AB 2019 540 265 8.9 4.36 5.03 K1IV+F7V +15 4255 NO Z 204639.50+160727.4
20467+1607 STF2727 AB 2020 544 266 8.8 4.36 5.03 K1IV+F7V +15 4255 NO Z 204639.50+160727.4
20467+1607 STF2727 AB 2022 546 266 8.8 4.36 5.03 K1IV+F7V +15 4255 NO Z 204639.50+160727.4

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