17285+7430 A  1155

 
 
17h 28m 29.05s +74 30' 00.4" P.A. 297 sep 0.5 mag 8.50,10.55 Sp F2V dist. 169.78 pc (553.82 l.y.)
 
 
Coord 2000
17285+7430
Discov num
A  1155
Comp
Coord arcsec 2000
17 28 29.05 +74 30 00.4
Date first
1905
Date last
1997
Obs
17
Pa first
334
Pa last
297
P.A. Now (θ)
297°
Sep first
0.4
Sep last
0.5
Sep. Now (ρ)
0.5"
Mag pri
8.50
Mag sec
10.55
delta mag (ΔM)
2.05
Spectral class
F2V (yellow-white)
Pri motion ra
+012
Sec motion ra
Pri motion dec
+028
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
296.9
Precise sep
0.49
Constellation
Draco
SAO
8816
HIP
85509
Tycho2
4427-00569-1
HD
159754
BD
BD+74 713
Distance
169.78
Distance ly
553.82
last precise pa
296.9
last precise sep
0.49
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17285+7430 A 1155 1997 17 297 0.5 8.50 10.55 F2V D 172829.05+743000.4

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