17374+5040 ES 2661AB

 
 
17h 37m 25.08s +50 40' 06.6" P.A. 102 sep 58.3 mag 8.46,9.84 Sp K5 dist. 425.53 pc (1388.08 l.y.)
 
 
Coord 2000
17374+5040
Discov num
ES 2661
Comp
AB
Coord arcsec 2000
17 37 25.08 +50 40 06.6
Date first
1902
Date last
2015
Obs
12
Pa first
104
Pa last
102
P.A. Now (θ)
102°
Sep first
58.1
Sep last
58.3
Sep. Now (ρ)
58.3"
Mag pri
8.46
Mag sec
9.84
delta mag (ΔM)
1.38
Spectral class
K5 (yellow-orange)
Pri motion ra
+005
Sec motion ra
+011
Pri motion dec
-031
Sec motion dec
-022
Notes
rPM=0.344
Nature of this double is uncertain.
 
 
17374+5040 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 30486 17374+5040 ES 2661 AB 1902 2015 12 102 58.3 8.46 9.84 1.38 <===
Show 17374+5040 ES 2661 BC 1909 2015 9 18 14.9 9.84 12.80 2.96
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
102.1
Precise sep
58.27
Constellation
Draco
SAO
30486
HIP
86241
Tycho2
3521-01545-1
HD
160469
BD
BD+50 2438
Distance
425.53
Distance ly
1388.08
last precise pa
102.1
last precise sep
58.27
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17374+5040 ES 2661 AB 2004 10 101 57.8 8.46 9.84 K5 D 173725.08+504006.6
17374+5040 ES 2661 AB 2015 12 102 58.3 8.46 9.84 K5 173725.08+504006.6

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