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)
rPM=1.218
This double is not physical.
 
 
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 16224+3348 H N 81 AC 1879 2002 7 241 68.1 5.39 12.62 7.23 <===
Show 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 2015 10 16 98.2 5.58 11.53 5.95
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
241.2
Precise sep
68.051
Constellation
Corona Borealis
SAO
65257
HIP
80197
Tycho2
2583-01993-1
Gaia DR2
55665456000
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
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16224+3348 H N 81 AC 1998 6 241 68.3 5.39 11.30 M2IIIab N D 162221.42+334756.9
16224+3348 H N 81 AC 2002 7 242 67.8 5.39 11.30 M2IIIab N D 162221.42+334756.9

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