15155+3319 SMR  31AC

 
 
15h 15m 30.16s +33 18' 53.4" P.A. 5 sep 92.4 mag 3.56,14.30 Sp G8IIICN-1 dist. 37.34 pc (121.8 l.y.)
 
 
Coord 2000
15155+3319
Discov num
SMR  31
Comp
AC
Coord arcsec 2000
15 15 30.16 +33 18 53.4
Date first
2002
Date last
2013
Obs
3
Pa first
5
Pa last
5
P.A. Now (θ)
Sep first
92.4
Sep last
92.4
Sep. Now (ρ)
92.4"
Mag pri
3.56
Mag sec
14.30
delta mag (ΔM)
10.74
Spectral class
G8IIICN-1 (yellow)
Pri motion ra
+085
Sec motion ra
+023
Pri motion dec
-111
Sec motion dec
-031
Notes
N (See Notes)
rPM=0.724
Nature of this double is uncertain.
 
 
15155+3319 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show Del Boo 64589 15155+3319 STFA 27 AB 1780 2015 115 78 106.3 3.56 7.89 4.33 Y
Show 64589 15155+3319 SMR 31 AC 2002 2013 3 5 92.4 3.56 14.30 10.74 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
5.3
Precise sep
92.35
Cdsa2 id
SMR 31 AC
Constellation
Bootes
SAO
64589
HIP
74666
Tycho2
2566-01639-1
HD
135722
HR
5681
GC
20523
BD
BD+33 2561
Bayer
Delta Bootis
Bayer name
Del Boo
Flamsteed
49 Bootis
Flamsteed name
49 Boo
Ra deg
15.258377777777778
De deg
33.31483333333333
Distance
37.34
Distance ly
121.8
last precise pa
5.3
last precise sep
92.35
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15155+3319 SMR 31 AC 2012 1 5 91.6 3.56 14.30 G8IIICN-1 151530.16+331853.4
15155+3319 SMR 31 AC 2013 2 5 92.4 3.56 14.30 G8IIICN-1 151530.16+331853.4

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