18417+5108 HU  754

 
 
18h 41m 44.99s +51 07' 33.6" P.A. 93 sep 1.3 mag 8.36,11.53 Sp A2 dist. 318.47 pc (1038.85 l.y.)
 
 
Coord 2000
18417+5108
Discov num
HU  754
Comp
Coord arcsec 2000
18 41 44.99 +51 07 33.6
Date first
1904
Date last
1991
Obs
4
Pa first
91
Pa last
93
P.A. Now (θ)
93°
Sep first
1.4
Sep last
1.3
Sep. Now (ρ)
1.3"
Mag pri
8.36
Mag sec
11.53
delta mag (ΔM)
3.17
Spectral class
A2 (white)
Pri motion ra
+001
Sec motion ra
+003
Pri motion dec
+003
Sec motion dec
+002
Notes
rPM=0.62
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
92.5
Precise sep
1.31
Constellation
Draco
SAO
31111
HIP
91680
Tycho2
3539-00690-1
HD
173287
BD
BD+50 2651
Distance
318.47
Distance ly
1038.85
last precise pa
92.5
last precise sep
1.31
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18417+5108 HU 754 1991 4 93 1.3 8.36 11.53 A2 D 184144.99+510733.6

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