17016+1457 H 4 122 (V451 Her)

 
 
17h 01m 33.05s +14 56' 59.0" P.A. 238 sep 18.9 mag 6.28,10.27 Sp B9pCrEu dist. 162.87 pc (531.28 l.y.)
 
 
Coord 2000
17016+1457
Discov num
H 4 122
Comp
Coord arcsec 2000
17 01 33.05 +14 56 59.0
Date first
1783
Date last
2015
Obs
28
Pa first
245
Pa last
238
P.A. Now (θ)
238°
Sep first
21.1
Sep last
18.9
Sep. Now (ρ)
18.9"
Mag pri
6.28
Mag sec
10.27
delta mag (ΔM)
3.99
Spectral class
B9pCrEu (blue-white)
Pri motion ra
+005
Sec motion ra
Pri motion dec
-001
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
237.5
Precise sep
18.893
Var name
V451 Her
Constellation
Hercules
SAO
102536
HIP
83308
Tycho2
0988-00180-1
Gaia DR2
96401963264
HD
153882
HR
6326
BD
BD+15 3095
Distance
162.87
Distance ly
531.28
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17016+1457 H 4 122 2003 22 237 18.7 6.28 10.27 B9pCrEu N D 170133.05+145659.0
17016+1457 H 4 122 2014 25 236 18.9 6.28 10.27 B9pCrEu N D 170133.05+145659.0
17016+1457 H 4 122 2015 27 238 18.9 6.28 10.27 B9pCrEu N 170133.05+145659.0

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