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 dist. 884.96 pc (2886.74 l.y.)
 
 
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
2015
Obs
8
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
41.1
Precise sep
4.331
Constellation
Aquila
HIP
92477
Tycho2
1026-02065-1
Gaia DR2
4311085453600069376
HD
174571
BD
BD+08 3866
Distance
884.96
Distance ly
2886.74
 
 
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
18508+0842 HU 256 2015 8 41 4.3 8.95 12.35 B3V:pe 185047.17+084210.0

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