Free Access

Table 4

Positions of the close visual companion of θ1 Ori A.

Date PA ΔPA Sep. ΔSep. Ref.
[] [] [′′] [′′]

1994.901 343.5 5 208 30 3
1995.775 350.6 2 227 5 2
1996.247 352.8 2 227 4 2
1996.746 352.7 2 223 4 2
1997.788 353.0 2 224 4 2
1998.838 353.8 2 221 5 2
1998.841 353.8 2 221.5 5 4
1999.715 355.4 2 219 3 2
1999.737 354.8 2 215 3 2
1999.819 175.1* 0.5 212 2.5 5
2000.765 356.2 2 215 4 2
2000.781 356.1 2 216 4 2
2000.781 356.0 2 211 4 2
2001.186 356.0 2 215 3 2
2001.718 356.9 1 205.1 3 1
2003.701 3.9 1 210 5 This paper
2003.945 3.9 1 209 5 This paper
2004.816 0.3 1.6 203 2 6
2004.822 0.9 0.8 205 3 6
2004.945 4.6 1 207 5 This paper
2005.060 5.3 1 208 5 This paper
2005.940 5.9 1 204 5 This paper
2007.704 6.1 1 202 5 This paper
2009.019 7.5 1 199 5 This paper
2009.885 8.2 1 197 5 This paper
2009.899 8.5 1 198 5 This paper
2010.260 9.4 1 197 5 This paper
2010.877 6.5 0.3 193.1 0.5 1
2010.953 6.2 2 193.0 1 This paper
2011.827 7.3 2 193.2 1 This paper

Notes. 

(*)

180° ambiguity could not be solved from the measurement itself, but taking into account the other measurements should probably be 355.1°.

References. (1) Close et al. (2012); (2) Schertl et al. (2003); (3) Petr et al. (1998); (4) Weigelt et al. (1999); (5) Balega et al. (2004); (6) Balega et al. (2007).

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.