Open Access

Table A.1

Log of Stokes V observationsof Betelgeuse (for details, see Sect. 2).

Date HJD Season Instr. n label
(2 450 000+)
September 28, 2009 5103.120 S1 E 2
October 02, 2009 5107.024 S1 E 1
October 07, 2009 5112.038 S1 E 3
March 14, 2010 5270.397 S1 N 16 N20100300
March 15, 2010 5271.373 S1 N 16 N20100300
March 17, 2010 5273.312 S1 N 16 N20100300
March 22, 2010 5278.362 S1 N 16 N20100300
April 05, 2010 5292.334 S1 N 20 N20100400
April 09, 2010 5296.319 S1 N 20 N20100400
April 17, 2010 5304.341 S1 N 19 N20100400

September 19, 2010 5459.690 S2 N 16
October 13, 2010 5483.706 S2 N 16
November 21, 2010 5521.895 S2 E 12 E20101121
December 09, 2010 5540.668 S2 N 16 N20101209
January 19, 2011 5581.433 S2 N 16
February 05, 2011 5598.381 S2 N 16 N20110205
March 18, 2011 5639.369 S2 N 16

October 08, 2011 5843.710 S3 N 16 N20111008
November 11, 2011 5877.659 S3 N 16 N20111111
December 08, 2011 5904.436 S3 N 16 N20111208
January 07, 2012 5934.573 S3 N 16
February 10, 2012 5968.373 S3 N 16
February 11, 2012 5969.454 S3 N 16
February 14, 2012 5971.952 S3 E 11
March 11, 2012 5998.377 S3 N 16

September 26, 2012 6197.026 S4 E 11 E20121000
October 01, 2012 6202.035 S4 E 11 E20121000
November 25, 2012 6257.172 S4 E 16 E20121200
November 28, 2012 6260.164 S4 E 16 E20121200
November 30, 2012 6262.041 S4 E 7
December 05, 2012 6266.984 S4 E 23 E20121200
December 07, 2012 6269.113 S4 E 11 E20121200
December 09, 2012 6271.136 S4 E 11 E20121200
December 21, 2012 6282.874 S4 E 11
December 23, 2012 6285.087 S4 E 22
December 27, 2012 6288.937 S4 E 11 E20130000
December 29, 2012 6290.949 S4 E 11 E20130000
January 01, 2013 6293.988 S4 E 11 E20130000

September 08, 2013 6544.693 S5 N 16 N20130908
September 21, 2013 6557.660 S5 N 16 N20130921
October 06, 2013 6572.700 S5 N 10 N20131006
October 07, 2013 6573.705 S5 N 6 N20131006
October 31, 2013 6597.709 S5 N 16 N20131031
November 27, 2013 6624.600 S5 N 12 N20131127
December 11, 2013 6638.613 S5 N 12
December 20, 2013 6647.510 S5 N 12
January 09, 2014 6667.517 S5 N 12
April 08, 2014 6756.334 S5 N 14 N20140408

September 12, 2014 6913.668 S6 N 16 N20140900
September 24, 2014 6925.647 S6 N 16 N20140900
October 17, 2014 6948.697 S6 N 16 N20141000
October 23, 2014 6954.597 S6 N 16 N20141000
November 05, 2014 6967.611 S6 N 16
November 12, 2014 6974.564 S6 N 16
November 20, 2014 6982.634 S6 N 16
December 18, 2014 7010.578 S6 N 16 N20141218
January 06, 2015 7029.446 S6 N 16 N20150106
January 17, 2015 7040.388 S6 N 12
March 03, 2015 7085.304 S6 N 16
April 01, 2015 7114.310 S6 N 16 N20150401

September 20, 2015 7286.676 S7 N 16
October 15, 2015 7311.712 S7 N 16
November 14, 2015 7341.706 S7 N 16
November 16, 2015 7343.582 S7 N 16
December 11, 2015 7368.592 S7 N 16
January 20, 2016 7408.537 S7 N 16 N20160120
February 16, 2016 7435.344 S7 N 16
March 12, 2016 7460.354 S7 N 16
April 18, 2016 7497.341 S7 N 16 N20160418

September 12, 2016 7644.682 S8 N 16 N20160912
October 08, 2016 7670.694 S8 N 16 N20161008
November 01, 2016 7694.561 S8 N 16 N20161101
December 03, 2016 7726.580 S8 N 16 N20161203
December 20, 2016 7743.479 S8 N 16
February 17, 2017 7802.397 S8 N 16 N20170217
April 03, 2017 7847.319 S8 N 8 N20170403

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