13581+1928 BU   30

 
 
13h 58m 07.43s +19 27' 29.8" P.A. 199 sep 7.8 mag 8.82,11.78 Sp F5 dist. 154.08 pc (502.61 l.y.)
 
 
Coord 2000
13581+1928
Discov num
BU   30
Comp
Coord arcsec 2000
13 58 07.43 +19 27 29.8
Date first
1872
Date last
2010
Obs
31
Pa first
220
Pa last
199
P.A. Now (θ)
199°
Sep first
5.0
Sep last
7.8
Sep. Now (ρ)
7.8"
Mag pri
8.82
Mag sec
11.78
delta mag (ΔM)
2.96
Spectral class
F5 (yellow-white)
Pri motion ra
-007
Sec motion ra
-029
Pri motion dec
-063
Sec motion dec
-026
Notes
rPM=0.679
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
199
Precise sep
7.76
Constellation
Bootes
SAO
100797
HIP
68237
Tycho2
1470-00737-1
HD
121906
BD
BD+20 2904
Distance
154.08
Distance ly
502.61
last precise pa
199
last precise sep
7.76
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
13581+1928 BU 30 1998 27 198 8.0 8.82 11.78 F5 D 135807.43+192729.8
13581+1928 BU 30 2009 28 198 7.7 8.82 11.78 F5 D 135807.43+192729.8
13581+1928 BU 30 2010 29 200 8.1 8.82 11.78 F5 D 135807.43+192729.8

If you need more information about this double, apply for a data request form to the WDS.