WDS 20231+5504 OL 74 : NOTES
 
 
discov_num notes refcode
OL 74 Although listed as a measure of OL 77 by Olivier (1920), neither Ol_1920a
the coordinates nor the measure agreed with that pair, so it has been
assigned a new designation. Previously listed in the WDS as OL 80.
Although this measure (40.7deg, 3.79") could conceivably be a measure
of OL 80 with a 100deg theta error (expected values are about
140deg, 3.5"), the near-zero magnitude difference does not agree with
the ~2 magnitude estimates for OL 80. Finally, the coordinates of
OL 80 are 18547-1946, making such a misidentification implausible.
 
 
REFERENCES
 
 
refcode metd author reference
Ol_1920a Po j Olivier, C.P. .
Ol_1920a Pub. McCormick Obs. 3, 679, 1920
 
 
DISCOVERER
 
 
idgroup discov author
1 OL Olivier, C.P.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20231+5504 OL 74 2003 3 40 3.9 12.80 12.90 N R 202109.13+550319.9
20231+5504 OL 74 2015 4 41 3.9 12.80 12.90 N R 202109.13+550319.9

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