18543-4252 DON 931

 
 
18h 54m 23.24s -42 51' 49.4" P.A. 246 sep 0.5 mag 9.80,11.20 Sp K1III:
 
 
Coord 2000
18543-4252
Discov num
DON 931
Comp
Coord arcsec 2000
18 54 23.24 -42 51 49.4
Date first
1931
Date last
1936
Obs
2
Pa first
249
Pa last
246
P.A. Now (θ)
246°
Sep first
0.4
Sep last
0.5
Sep. Now (ρ)
0.5"
Mag pri
9.80
Mag sec
11.20
delta mag (ΔM)
1.4
Spectral class
K1III: (yellow-orange)
Pri motion ra
+009
Sec motion ra
Pri motion dec
+001
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
245.8
Precise sep
0.54
Cdsa2 id
DON 931
Constellation
Corona Austrina
Ra deg
18.906455555555553
De deg
-42.86372222222222
last precise pa
245.8
last precise sep
0.54
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18543-4252 DON 931 1936 2 246 0.5 9.80 11.20 K1III: 185423.24-425149.4

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