WDS 18542-2245 BU 1033 AB (Ainalrami) : NOTES
 
 
discov_num notes refcode
BU 1033 nu 1 Sgr = 32 Sgr = Ainalrami
nu Sgr Henroteau notes that Ptolemy (Magna compositio. Venetiis 1515, lib HFC1928
VIII, cap 1) called the 14' pair nu 1 + nu 2 Sgr a double star.
This is perhaps the earliest description of a double star.
 
 
REFERENCES
 
 
refcode metd author reference
HFC1928 - Henroteau, F.C. 1928HDA.....6..299H
HFC1928 Handbuch der Astrophysik 6, part 2, 299, 1928 (no data)
 
 
DISCOVERER
 
 
discov author
BU Burnham, S.W. (BU 1 - 81)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
18542-2245 BU 1033 AB 1930 6 97 2.5 4.90 10.80 G2I -22 4907 N 185410.18-224441.4
18542-2245 BU 1033 AB 2015 7 99 2.5 4.90 10.80 G2I -22 4907 NS 185410.18-224441.4

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