17589+2620 COU 808

 
 
17h 58m 51.90s +26 19' 38.9" P.A. 155 sep 1 mag 9.30,11.40 Sp F8
 
 
Coord 2000
17589+2620
Discov num
COU 808
Comp
Coord arcsec 2000
17 58 51.90 +26 19 38.9
Date first
1972
Date last
2007
Obs
2
Pa first
150
Pa last
155
P.A. Now (θ)
155°
Sep first
0.8
Sep last
1.0
Sep. Now (ρ)
1"
Mag pri
9.30
Mag sec
11.40
delta mag (ΔM)
2.1
Spectral class
F8 (yellow-white)
Pri motion ra
-001
Sec motion ra
Pri motion dec
-026
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
155.2
Precise sep
0.98
Constellation
Hercules
SAO
85603
Tycho2
2098-02533-1
last precise pa
155.2
last precise sep
0.98
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17589+2620 COU 808 1972 1 150 0.8 9.30 11.40 F8 175851.90+261938.9
17589+2620 COU 808 2007 2 155 1.0 9.30 11.40 F8 175851.90+261938.9

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