12281+4448 STF1645

 
 
12h 28m 04.45s +44 47' 39.5" P.A. 158 sep 9.7 mag 7.49,8.08 Sp F9V dist. 43.61 pc (142.26 l.y.)
 
 
Coord 2000
12281+4448
Discov num
STF1645
Comp
Coord arcsec 2000
12 28 04.45 +44 47 39.5
Date first
1791
Date last
2017
Obs
107
Pa first
151
Pa last
158
P.A. Now (θ)
158°
Sep first
15.9
Sep last
9.7
Sep. Now (ρ)
9.7"
Mag pri
7.49
Mag sec
8.08
delta mag (ΔM)
0.59
Spectral class
F9V (yellow-white)
Pri motion ra
-183
Sec motion ra
-179
Pri motion dec
-004
Sec motion dec
-002
Notes
N L W V (See Notes, Linear solution, , Proper motion indicates physical)
rPM=0.024 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
157.6
Precise sep
9.702
Cdsa2 id
STF 1645
Constellation
Canes Venatici
SAO
44187
HIP
60831
Tycho2
3020-02112-1
HD
108574
BD
BD+45 2038
Ra deg
12.467902777777779
De deg
44.79430555555555
Distance
43.61
Distance ly
142.26
last precise pa
157.6
last precise sep
9.702
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12281+4448 STF1645 2008 87 157 9.9 7.49 8.08 F9V NLDV 122804.45+444739.5
12281+4448 STF1645 2011 95 157 9.7 7.49 8.08 F9V NLDV 122804.45+444739.5
12281+4448 STF1645 2012 98 157 10.0 7.49 8.08 F9V NLDV 122804.45+444739.5
12281+4448 STF1645 2014 100 157 9.8 7.49 8.08 F9V NLDV 122804.45+444739.5
12281+4448 STF1645 2017 107 158 9.7 7.49 8.08 F9V NLWV 122804.45+444739.5

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