16221+3054 CHR 53 Aa,Ab (Xi CrB)

16h 22m 05.89s +30° 53' 30.2" P.A. 139.00 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 139.4 P.A. Now (θ) 139.4°
Sep first 0.2 Sep last 0.091 Sep. Now (ρ) 0.091"
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 wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Xi CrB 65254 16 22 06 +30 53 30 CHR 53 Aa,Ab 2006 3 139 0.1 4.80 <===
Show 65254 16 22 06 +30 53 30 BUP 167 AB 2020 8 63 188.7 4.86 13.19 8.33


Triple system
2 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Name Xi CrB Constellation Corona Borealis SAO 65254 HIP 80181
Tycho2 2580-02438-1 Gaia DR2 1319135746826326016 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 FK5 3294 Distance 56.24
Distance ly 183.45 Bayer greek ξ CrB