17554+5558 HJL1097

 
 
17h 55m 23.65s +55 58' 17.0" P.A. 49 sep 351.6 mag 6.12,8.93 Sp F0IV dist. 56.37 pc (183.88 l.y.)
 
 
Coord 2000
17554+5558
Discov num
HJL1097
Comp
Coord arcsec 2000
17 55 23.65 +55 58 17.0
Date first
1905
Date last
2015
Obs
13
Pa first
50
Pa last
49
P.A. Now (θ)
49°
Sep first
351.7
Sep last
351.6
Sep. Now (ρ)
351.6"
Mag pri
6.12
Mag sec
8.93
delta mag (ΔM)
2.81
Spectral class
F0IV (yellow-white)
Pri motion ra
+036
Sec motion ra
+035
Pri motion dec
+124
Sec motion dec
+123
Notes
W
rPM=0.011 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
49
Precise sep
351.576
Constellation
Draco
SAO
30645
HIP
87744
Tycho2
3906-00438-1
HD
163929
HR
6699
BD
BD+55 1995
Distance
56.37
Distance ly
183.88
last precise pa
49
last precise sep
351.576
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17554+5558 HJL1097 1999 2 49 351.6 6.12 8.93 D 175523.65+555817.0
17554+5558 HJL1097 2003 11 49 351.9 6.12 8.93 D 175523.65+555817.0
17554+5558 HJL1097 2010 12 49 351.5 6.12 8.93 F0IV 175523.65+555817.0
17554+5558 HJL1097 2015 13 49 351.6 6.12 8.93 F0IV W 175523.65+555817.0

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