18146-1113 HLD 142

 
 
18h 14m 38.36s -11 13' 00.0" P.A. 254 sep 1.2 mag 9.51,9.83 Sp B9
 
 
Coord 2000
18146-1113
Discov num
HLD 142
Comp
Coord arcsec 2000
18 14 38.36 -11 13 00.0
Date first
1882
Date last
2016
Obs
8
Pa first
225
Pa last
254
P.A. Now (θ)
254°
Sep first
1.5
Sep last
1.2
Sep. Now (ρ)
1.2"
Mag pri
9.51
Mag sec
9.83
delta mag (ΔM)
0.32
Spectral class
B9 (blue-white)
Pri motion ra
+004
Sec motion ra
+004
Pri motion dec
-003
Sec motion dec
-003
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
254.1
Precise sep
1.192
Constellation
Serpens
SAO
161210
Tycho2
5680-00019-1
HD
167220
last precise pa
254.1
last precise sep
1.192
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18146-1113 HLD 142 1991 7 253 1.2 9.51 9.83 B9 181438.36-111300.0
18146-1113 HLD 142 2016 8 254 1.2 9.51 9.83 B9 181438.36-111300.0

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