17388+5406 HDS2493

 
 
17h 38m 45.19s +54 06' 07.8" P.A. 253 sep 0.5 mag 10.18,12.44 Sp F8 dist. 178.57 pc (582.5 l.y.)
 
 
Coord 2000
17388+5406
Discov num
HDS2493
Comp
Coord arcsec 2000
17 38 45.19 +54 06 07.8
Date first
1991
Date last
2014
Obs
5
Pa first
249
Pa last
253
P.A. Now (θ)
253°
Sep first
0.5
Sep last
0.5
Sep. Now (ρ)
0.5"
Mag pri
10.18
Mag sec
12.44
delta mag (ΔM)
2.26
Spectral class
F8 (yellow-white)
Pri motion ra
+002
Sec motion ra
Pri motion dec
+013
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
253.4
Precise sep
0.536
Constellation
Draco
SAO
30496
HIP
86354
Tycho2
3889-00217-1
HD
234469
BD
BD+54 1900
Distance
178.57
Distance ly
582.5
last precise pa
253.4
last precise sep
0.536
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17388+5406 HDS2493 1991 1 249 0.5 10.18 12.44 F8 173845.19+540607.8
17388+5406 HDS2493 2009 2 253 0.5 10.18 12.44 F8 D 173845.19+540607.8
17388+5406 HDS2493 2010 3 252 0.5 10.18 12.44 F8 173845.19+540607.8
17388+5406 HDS2493 2014 5 253 0.5 10.18 12.44 F8 173845.19+540607.8

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