17566+5813 ES   20 (T Dra)

 
 
17h 56m 23.34s +58 13' 06.5" P.A. 212 sep 17.3 mag 10.85,11.08 Sp C dist. 85.25 pc (278.09 l.y.)
 
 
Coord 2000
17566+5813
Discov num
ES   20
Comp
Coord arcsec 2000
17 56 23.34 +58 13 06.5
Date first
1900
Date last
2013
Obs
23
Pa first
228
Pa last
212
P.A. Now (θ)
212°
Sep first
14.3
Sep last
17.3
Sep. Now (ρ)
17.3"
Mag pri
10.85
Mag sec
11.08
delta mag (ΔM)
0.23
Spectral class
C (red carbon star)
Pri motion ra
-017
Sec motion ra
+008
Pri motion dec
-058
Sec motion dec
-021
Notes
N (See Notes)
rPM=0.739
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
211.5
Precise sep
17.32
Var name
T Dra
Constellation
Draco
HIP
87820
Tycho2
3914-00546-1
BD
BD+58 1772
Distance
85.25
Distance ly
278.09
last precise pa
211.5
last precise sep
17.32
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17566+5813 ES 20 1991 10 214 16.7 10.85 11.08 N 175623.34+581306.5
17566+5813 ES 20 2008 11 212 17.2 10.85 11.08 N 175623.34+581306.5
17566+5813 ES 20 2013 23 212 17.3 10.85 11.08 C N 175623.34+581306.5

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