WDS 08250-4246 RST 4888 AB (V438 Pup) : NOTES
 
 
discov_num notes refcode
CHR 226 Ba,Bb: This close companion to RST4888 has been observed on three
occasions, but has shown little movement over a 1.6-year period. The
1989 measurements of the Rossiter pair were originally published by
McAlister et al. (1990) and Hartkopf et al. (1993). Following McA1990
discovery of the close pair in the 1990 data, these 1989 data were Hrt1993
rereduced, resulting in "preconfirmation" of the new component. Hrt1996b
V438 Pup, Algol-type eclipsing binary, P = 4.9350 d. Zas2011
The new pair was initially given component designations Aa,Ab, but
it was uncertain which component of the Rossiter had been split.
Tokovinin et al. (2015) have determined it was the B component, so the Tok2015c
pair has been changed to Ba,Bb.
 
 
REFERENCES
 
 
refcode metd author reference
Hrt1993 Sc j Hartkopf, W.I., Mason, B.D., Barry, D.J., McAlister, H.A., Bagnuolo, W.G., & 1993AJ....106..352H
Hrt1993 Prieto, C.M.
Hrt1993 AJ 106, 352, 1993
Hrt1996b Sc j Hartkopf, W.I., Mason, B.D., McAlister, H.A., Turner, N.H., Barry, D.J., Franz, . 1996AJ....111..936H
Hrt1996b O.G., & Prieto, C.M
Hrt1996b AJ 111, 936, 1996
McA1990 Sc j McAlister, H.A., Hartkopf, & Franz, O.G. 1990AJ.....99..965M
McA1990 AJ 99, 965, 1990
Tok2015c orb+j Tokovinin, A., Mason, B.D., Hartkopf, W.I., Mendez, R.A., & Horch, E.P. 2015AJ....150...50T
Tok2015c +St AJ 150, 50, 2015 (some measures corrected in Tok2017b) 2017AJ....154..110T
Zas2011 - Zasche, P. ...................
Zas2011 private communication, 2011
 
 
DISCOVERER
 
 
idgroup discov author
1 CHR Center for High Ang. Res. Astronomy (speckle interferometry systems)
3 RST Rossiter, R.A.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
08250-4246 RST4888 AB 2006 8 105 0.5 6.59 6.81 D 082457.22-424611.5
08250-4246 RST4888 AB 2009 10 104 0.5 6.59 6.81 D 082457.22-424611.5
08250-4246 RST4888 AB 2010 11 105 0.5 6.59 6.81 N D 082457.22-424611.5
08250-4246 RST4888 AB 2011 13 104 0.5 6.59 6.81 N D 082457.22-424611.5
08250-4246 RST4888 AB 2012 14 103 0.5 6.59 6.81 B3V N 082457.22-424611.5
08250-4246 RST4888 AB 2014 16 102 0.5 6.59 6.81 B3V N 082457.22-424611.5
08250-4246 RST4888 AB 2015 18 103 0.5 6.59 6.81 B3V N 082457.22-424611.5
08250-4246 RST4888 AB 2017 20 103 0.5 6.59 6.81 B3V N 082457.22-424611.5
08250-4246 RST4888 AB 2018 23 102 0.5 6.59 6.81 B3V N 082457.22-424611.5
08250-4246 RST4888 AB 2019 26 102 0.5 6.59 6.81 B3V N 082457.22-424611.5
08250-4246 RST4888 AB 2020 27 102 0.5 6.59 6.81 B3V N 082457.22-424611.5

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