16224+3348 H N  81AC

 
 
16H 22M 21.42S +33 47' 56.9" P.A. 241 SEP 68.1 MAG 5.39,12.62 SP M2IIIAB DIST. 196.46 PC (640.85 L.Y.)
 
 
Coord 2000
16224+3348
Discov num
H N  81
Comp
AC
Coord arcsec 2000
16 22 21.42 +33 47 56.9
Date first
1879
Date last
2002
Obs
7
Pa first
237
Pa last
241
P.A. Now (θ)
241°
Sep first
66.4
Sep last
68.1
Sep. Now (ρ)
68.1"
Mag pri
5.39
Mag sec
12.62
delta mag (ΔM)
7.23
Spectral class
M2IIIab (red)
Pri motion ra
+005
Sec motion ra
-028
Pri motion dec
-038
Sec motion dec
-005
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
16224+3348 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show Nu1 CrB 65257 16224+3348 STFA 29 AB 1835 2011 37 164 354.7 5.39 5.58 0.19
Show 65257 16224+3348 H N 81 AC 1879 2002 7 241 68.1 5.39 12.62 7.23 <===
Show 65257 16224+3348 STFA 29 AD 1913 2002 5 153 277.1 5.39 11.53 6.14
Show 65259 16224+3348 H 6 18 BD 1879 2002 9 16 100.0 5.58 11.53 5.95
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Corona Borealis
SAO
65257
HIP
80197
Tycho2
2583-01993-1
HD
147749
HR
6107
GC
22026
BD
BD+34 2773
Bayer
Nu 1 Coronae Borealis
Bayer name
Nu1 CrB
Flamsteed
20 Coronae Borealis
Flamsteed name
20 CrB
Distance
196.46
Distance ly
640.85
last precise pa
241.2
last precise sep
68.051