15277+4253 RAO  18BC

 
 
15h 27m 37.91s +42 53' 23.2" P.A. 141.00 sep 0.3 mag 9.74,11.00 Sp K dist. 32.13 pc (104.81 l.y.)
 
 
Coord 2000
15277+4253
Discov num
RAO  18
Comp
BC
Coord arcsec 2000
15 27 37.91 +42 53 23.2
Date first
2013
Date last
2018
Obs
4
Pa first
100
Pa last
141
P.A. Now (θ)
141°
Sep first
0.4
Sep last
0.3
Sep. Now (ρ)
0.3"
Mag pri
9.74
Mag sec
11.00
delta mag (ΔM)
1.26
Spectral class
K (yellow-orange)
Pri motion ra
-070
Sec motion ra
Pri motion dec
-263
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
15277+4253 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 45551 15277+4253 KU 108 AB 1893 2015 17 319 40.7 7.55 9.74 2.19
Show 45551 15277+4253 RAO 18 BC 2013 2018 4 141 0.3 9.74 11.00 1.26 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
140.5
Precise sep
0.281
Constellation
Bootes
SAO
45551
HIP
75676
Tycho2
3058-00653-1
Gaia DR2
88062270208
HD
138004
BD
BD+43 2500
Distance
32.13
Distance ly
104.81
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15277+4253 RAO 18 BC 2013 1 98 0.4 9.74 9.70 K 152737.92+425323.2
15277+4253 RAO 18 BC 2015 2 113 0.4 9.74 11.00 K N 152737.91+425323.2
15277+4253 RAO 18 BC 2018 4 141 0.3 9.74 11.00 K N 152737.91+425323.2

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