12161+4040 STF1622 (2 CVn)

 
 
12h 16m 07.55s +40 39' 36.6" P.A. 259 sep 11.6 mag 5.86,8.71 Sp M1III+F7V dist. 236.41 pc (771.17 l.y.)
 
 
Coord 2000
12161+4040
Discov num
STF1622
Comp
Coord arcsec 2000
12 16 07.55 +40 39 36.6
Date first
1782
Date last
2013
Obs
78
Pa first
259
Pa last
259
P.A. Now (θ)
259°
Sep first
12.2
Sep last
11.6
Sep. Now (ρ)
11.6"
Mag pri
5.86
Mag sec
8.71
delta mag (ΔM)
2.85
Spectral class
M1III+F7V (red/yellow-white)
Pri motion ra
+017
Sec motion ra
+023
Pri motion dec
-031
Sec motion dec
-013
Notes
N Y (See Notes, Parallax indicates components are non-physical)
rPM=0.537
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
259
Precise sep
11.603
Name
2 CVn
Constellation
Canes Venatici
SAO
44097
HIP
59831
Tycho2
3017-02100-1
HD
106690
HR
4666
GC
16750
BD
BD+41 2284
Flamsteed
2 Canum Venaticorum
Flamsteed name
2 CVn
Distance
236.41
Distance ly
771.17
last precise pa
259
last precise sep
11.603
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12161+4040 STF1622 2008 71 260 11.4 5.86 8.71 M1III+F7V NYD 121607.55+403936.6
12161+4040 STF1622 2010 74 260 11.5 5.86 8.71 M1III F7V NYD 121607.55+403936.6
12161+4040 STF1622 2011 75 257 11.9 5.86 8.71 M1III F7V NYD 121607.55+403936.6
12161+4040 STF1622 2013 77 259 11.6 5.86 8.71 M1III+F7V NY 121607.55+403936.6

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