17455+2950 COU 631

 
 
17h 45m 27.28s +29 50' 10.7" P.A. 51 sep 5.6 mag 10.41,13.60 Sp K0
 
 
Coord 2000
17455+2950
Discov num
COU 631
Comp
Coord arcsec 2000
17 45 27.28 +29 50 10.7
Date first
1902
Date last
2015
Obs
4
Pa first
53
Pa last
51
P.A. Now (θ)
51°
Sep first
6.9
Sep last
5.6
Sep. Now (ρ)
5.6"
Mag pri
10.41
Mag sec
13.60
delta mag (ΔM)
3.19
Spectral class
K0 (yellow-orange)
Pri motion ra
-009
Sec motion ra
Pri motion dec
-018
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
51.3
Precise sep
5.64
Constellation
Hercules
Tycho2
2089-01660-1
last precise pa
51.3
last precise sep
5.64
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17455+2950 COU 631 2000 3 52 5.8 10.41 13.60 K0 D 174527.28+295010.7
17455+2950 COU 631 2015 4 51 5.6 10.41 13.60 K0 174527.28+295010.7

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