WDS 04301+1538 STF 554 (80 Tau) : NOTES
 
 
discov_num notes refcode
STF 554 80 Tau. Hyad. Star A is SB1, P = 30.5d Hei1981e
Spectral types and masses of components assigned by ten Brummelaar et
al., based on adaptive optics observations. TtB2000
STF 554 The 1897 measure by Burnham was "... made under not the best Bu_1900
conditions ..." and "... is difficult to reconcile ...". Aitken did
not include it in the ADS. It was, then, not in the IDS list of A__1932a
measures transferred to Washington in 1964, so this measure was lost IDS1963A
for many years and recently found by G. Torres, and the observation Trr2019
of this high eccentricity binary was made shortly after periastron
passage, which resulted in the unexpected result.
Ma = 1.63 (+0.30 or -0.13) \msun, Mb = 1.11 (+0.21 or -0.14) \msun,
orbital parallax = 20.984+/-0.060 mas.
 
 
REFERENCES
 
 
refcode metd author reference
A__1932a Ma - Aitken, R.G. 1932QB821.A43......
A__1932a Aitken Double Star Catalogue, 1932
Bu_1900 Ma - Burnham, S.W. 1900PYerO...1....1B
Bu_1900 Pub. Yerkes Obs. 1, 1, 1900
Hei1981e - Heintz, W.D. 1981ApJS...46..247H
Hei1981e ApJS 46, 247, 1981
IDS1963A Ma - Jeffers, H.M., van den Bos, W.H., & Greeby, F. 1963icvd.book.....J
IDS1963A +O cited in IDS (Lick Index Cat.), 1963
IDS1963A +T (oldest measure of pair, listed without observer name)
Trr2019 Hg+ - Torres, G. 2019ApJ...883A.105T
Trr2019 +not ApJ 883, 105, 2019
TtB2000 Ac j ten Brummelaar, T.A., Mason, B.D., McAlister, H.A., Roberts, L.C., Jr., 2000AJ....119.2403T
TtB2000 Turner, N.H., Hartkopf, W.I., & Bagnuolo, W.G., Jr.
TtB2000 AJ 119, 2403, 2000 (magnitude differences from Mt. Wilson AO)
 
 
DISCOVERER
 
 
idgroup discov author
1 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
04301+1538 STF 554 2005 169 18 1.6 5.70 8.12 F0V+G0V NOD 043008.60+153816.2
04301+1538 STF 554 2009 170 21 1.6 5.70 8.12 F0V+G0V NOD 043008.60+153816.2
04301+1538 STF 554 2013 173 14 1.6 5.70 8.12 F0V G0V NOD 043008.60+153816.2
04301+1538 STF 554 2014 176 16 1.5 5.70 8.12 F0V+G0V NO 043008.60+153816.2
04301+1538 STF 554 2015 177 16 1.5 5.70 8.12 F0V+G0V NO 043008.60+153816.2
04301+1538 STF 554 2018 181 15 1.4 5.70 8.12 F0V+G0V NO 043008.60+153816.2
04301+1538 STF 554 2021 183 15 1.4 5.70 8.12 F0V+G0V NO 043008.60+153816.2

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