12560+3819 STF1692AB (Alp2 CVn)

 
 
12h 56m 01.67s +38 19' 06.2" P.A. 229 sep 20 mag 2.85,5.52 Sp A0pSiEuHg dist. 35.2 pc (114.82 l.y.)
 
 
Coord 2000
12560+3819
Discov num
STF1692
Comp
AB
Coord arcsec 2000
12 56 01.67 +38 19 06.2
Date first
1777
Date last
2016
Obs
164
Pa first
234
Pa last
229
P.A. Now (θ)
229°
Sep first
22.0
Sep last
20.0
Sep. Now (ρ)
20"
Mag pri
2.85
Mag sec
5.52
delta mag (ΔM)
2.67
Spectral class
A0pSiEuHg (white)
Pri motion ra
-233
Sec motion ra
-204
Pri motion dec
+055
Sec motion dec
+088
Notes
N V (See Notes, Proper motion indicates physical)
rPM=0.184 (< 0.3, Physical double)
This double is physical.
 
 
12560+3819 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show Alp2 CVn 63257 12560+3819 STF1692 AB 1777 2016 164 229 20.0 2.85 5.52 2.67 <===
Show 63256 12560+3819 TOK 562 BC 1980 2002 3 205 999.9 5.61 16.18 10.57
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
228.5
Precise sep
20
Name
Alp2 CVn
Constellation
Canes Venatici
SAO
63257
HIP
63125
HD
112413
HR
4915
GC
17557
BD
BD+39 2580
Bayer
Alpha 2 Canum Venaticorum
Bayer name
Alp2 CVn
Flamsteed
12 Canum Venaticorum
Flamsteed name
12 CVn
Distance
35.2
Distance ly
114.82
last precise pa
228.5
last precise sep
20
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12560+3819 STF1692 AB 2015 160 227 19.3 2.85 5.52 A0pSiEuHg NVD 125601.67+381906.2
12560+3819 STF1692 AB 2016 164 229 20.0 2.85 5.52 A0pSiEuHg NV 125601.67+381906.2

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