17531+4212 COU1599

 
 
17h 53m 03.13s +42 12' 20.2" P.A. 143 sep 0.7 mag 9.77,9.75 Sp F2
 
 
Coord 2000
17531+4212
Discov num
COU1599
Comp
Coord arcsec 2000
17 53 03.13 +42 12 20.2
Date first
1977
Date last
2015
Obs
11
Pa first
122
Pa last
143
P.A. Now (θ)
143°
Sep first
0.5
Sep last
0.7
Sep. Now (ρ)
0.7"
Mag pri
9.77
Mag sec
9.75
delta mag (ΔM)
0.02
Spectral class
F2 (yellow-white)
Pri motion ra
+022
Sec motion ra
+022
Pri motion dec
+031
Sec motion dec
+031
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
143.4
Precise sep
0.68
Constellation
Hercules
SAO
47035
Tycho2
3097-00881-1
last precise pa
143.4
last precise sep
0.68
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17531+4212 COU1599 1995 7 129 0.6 9.77 9.75 F2 175303.13+421220.2
17531+4212 COU1599 2010 10 126 0.6 9.77 9.75 F2 175303.13+421220.2
17531+4212 COU1599 2015 11 143 0.7 9.77 9.75 F2 175303.13+421220.2

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