16221+3054 CHR  53Aa,Ab

 
 
16h 22m 05.89s +30 53' 30.2" P.A. 139 sep 0.1 mag 4.80, Sp K0III dist. 56.24 pc (183.45 l.y.)
 
 
Coord 2000
16221+3054
Discov num
CHR  53
Comp
Aa,Ab
Coord arcsec 2000
16 22 05.89 +30 53 30.2
Date first
1984
Date last
2006
Obs
3
Pa first
74
Pa last
139
P.A. Now (θ)
139°
Sep first
0.2
Sep last
0.1
Sep. Now (ρ)
0.1"
Mag pri
4.80
Mag sec
delta mag (ΔM)
Spectral class
K0III (yellow-orange)
Pri motion ra
-096
Sec motion ra
Pri motion dec
+109
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
16221+3054 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 65254 16221+3054 CHR 53 Aa,Ab 1984 2006 3 139 0.1 4.80 <===
Show Xi CrB 65254 16221+3054 BUP 167 AB 1909 2002 3 62 188.2 4.86 13.19 8.33
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
139.4
Precise sep
0.091
Constellation
Corona Borealis
SAO
65254
HIP
80181
Tycho2
2580-02438-1
HD
147677
HR
6103
GC
22020
BD
BD+31 2845
Bayer
Xi Coronae Borealis
Bayer name
Xi CrB
Flamsteed
19 Coronae Borealis
Flamsteed name
19 CrB
Distance
56.24
Distance ly
183.45
last precise pa
139.4
last precise sep
0.091
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16221+3054 CHR 53 Aa,Ab 1986 2 93 0.2 4.80   K0III N 162205.89+305330.2
16221+3054 CHR 53 Aa,Ab 2006 3 139 0.1 4.80   K0III N 162205.89+305330.2

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