18381+3935 BU   50CD

 
 
18h 38m 02.69s +39 36' 14.1" P.A. 162 sep 5.7 mag 10.50,12.60
 
 
Coord 2000
18381+3935
Discov num
BU   50
Comp
CD
Coord arcsec 2000
18 38 02.69 +39 36 14.1
Date first
1872
Date last
2013
Obs
11
Pa first
180
Pa last
162
P.A. Now (θ)
162°
Sep first
15.0
Sep last
5.7
Sep. Now (ρ)
5.7"
Mag pri
10.50
Mag sec
12.60
delta mag (ΔM)
2.1
Spectral class
Pri motion ra
-010
Sec motion ra
+017
Pri motion dec
+017
Sec motion dec
+002
Notes
rPM=1.566
This double is not physical.
 
 
18381+3935 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 67192 18381+3935 BU 50 AB 1892 2013 9 2 22.3 9.50 14.00 4.50
Show 67192 18381+3935 BU 50 AC 1872 2013 13 328 73.6 9.54 11.60 2.06
Show 67192 18381+3935 BU 50 AD 1982 2013 5 327 68.1 9.54 11.60 2.06
Show 18381+3935 BU 50 CD 1872 2013 11 162 5.7 10.50 12.60 2.10 <===
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
162.2
Precise sep
5.65
Constellation
Lyra
last precise pa
162.2
last precise sep
5.65
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18381+3935 BU 50 CD 2002 9 164 6.4 10.40 11.90 D 183802.69+393614.1
18381+3935 BU 50 CD 2013 11 162 5.7 10.50 12.60 183802.69+393614.1

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