18424-1435 HU  249

 
 
18h 42m 22.28s -14 35' 16.7" P.A. 225 sep 3.2 mag 9.20,14.20 Sp B8Ib/II
 
 
Coord 2000
18424-1435
Discov num
HU  249
Comp
Coord arcsec 2000
18 42 22.28 -14 35 16.7
Date first
1900
Date last
2015
Obs
4
Pa first
224
Pa last
225
P.A. Now (θ)
225°
Sep first
3.4
Sep last
3.2
Sep. Now (ρ)
3.2"
Mag pri
9.20
Mag sec
14.20
delta mag (ΔM)
5
Spectral class
B8Ib/II (blue-white)
Pri motion ra
-001
Sec motion ra
Pri motion dec
-011
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
224.6
Precise sep
3.16
Constellation
Scutum
SAO
161742
Tycho2
5704-00415-1
Gaia DR2
4103516487439991808
HD
172731
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18424-1435 HU 249 1922 2 224 3.2 9.20 14.20 B8Ib/II 184222.28-143516.7
18424-1435 HU 249 2000 3 224 3.2 9.20 14.20 B8Ib/II 184222.28-143516.7
18424-1435 HU 249 2015 4 225 3.2 9.20 14.20 B8Ib/II 184222.28-143516.7

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