18152+5209 ES  646

 
 
18h 15m 09.43s +52 09' 24.8" P.A. 194 sep 10.5 mag 8.72,14.10 Sp A2 dist. 194.93 pc (635.86 l.y.)
 
 
Coord 2000
18152+5209
Discov num
ES  646
Comp
Coord arcsec 2000
18 15 09.43 +52 09 24.8
Date first
1908
Date last
2012
Obs
5
Pa first
197
Pa last
194
P.A. Now (θ)
194°
Sep first
9.9
Sep last
10.5
Sep. Now (ρ)
10.5"
Mag pri
8.72
Mag sec
14.10
delta mag (ΔM)
5.38
Spectral class
A2 (white)
Pri motion ra
-005
Sec motion ra
Pri motion dec
+015
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
194.4
Precise sep
10.51
Constellation
Draco
SAO
30837
HIP
89432
Tycho2
3537-02099-1
HD
168065
BD
BD+52 2175
Distance
194.93
Distance ly
635.86
last precise pa
204.3
last precise sep
9.48
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18152+5209 ES 646 2000 2 198 10.6 8.30 14.10 A2 D 181509.43+520924.8
18152+5209 ES 646 2008 3 196 10.2 8.30 14.10 A2 D 181509.43+520924.8
18152+5209 ES 646 2012 5 194 10.5 8.72 14.10 A2 181509.43+520924.8

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