18508+0842 HU  256

 
 
18h 50m 47.17s +08 42' 10.0" P.A. 41 sep 4.3 mag 8.95,12.35 Sp B3V:pe
 
 
Coord 2000
18508+0842
Discov num
HU  256
Comp
Coord arcsec 2000
18 50 47.17 +08 42 10.0
Date first
1900
Date last
1991
Obs
7
Pa first
43
Pa last
41
P.A. Now (θ)
41°
Sep first
4.5
Sep last
4.3
Sep. Now (ρ)
4.3"
Mag pri
8.95
Mag sec
12.35
delta mag (ΔM)
3.4
Spectral class
B3V:pe (blue-white)
Pri motion ra
-004
Sec motion ra
-002
Pri motion dec
-005
Sec motion dec
-001
Notes
rPM=0.698
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
41
Precise sep
4.31
Cdsa2 id
HU 256
Constellation
Aquila
Tycho2
1026-02065-1
HD
174571
Ra deg
18.84643611111111
De deg
8.702777777777778
last precise pa
41
last precise sep
4.31
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18508+0842 HU 256 1991 7 41 4.3 8.95 12.35 B3V:pe 185047.17+084210.0

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