12257+4444 STF1642

 
 
12h 25m 45.00s +44 44' 04.4" P.A. 179 sep 2.5 mag 8.80,9.40 Sp F5 dist. 244.5 pc (797.56 l.y.)
 
 
Coord 2000
12257+4444
Discov num
STF1642
Comp
Coord arcsec 2000
12 25 45.00 +44 44 04.4
Date first
1830
Date last
2012
Obs
42
Pa first
180
Pa last
179
P.A. Now (θ)
179°
Sep first
1.5
Sep last
2.5
Sep. Now (ρ)
2.5"
Mag pri
8.80
Mag sec
9.40
delta mag (ΔM)
0.6
Spectral class
F5 (yellow-white)
Pri motion ra
-072
Sec motion ra
-072
Pri motion dec
-004
Sec motion dec
-004
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
179.4
Precise sep
2.53
Constellation
Canes Venatici
SAO
44170
HIP
60643
Tycho2
3020-02183-1
HD
108224
BD
BD+45 2033
Distance
244.5
Distance ly
797.56
last precise pa
179.4
last precise sep
2.53
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12257+4444 STF1642 2006 41 179 2.5 8.80 9.40 F5 122545.00+444404.4
12257+4444 STF1642 2007 42 180 2.4 8.80 9.40 F5 122545.00+444404.4
12257+4444 STF1642 2010 44 179 2.5 8.80 9.40 F5 122545.00+444404.4
12257+4444 STF1642 2012 42 179 2.5 8.80 9.40 F5 122545.00+444404.4

If you need more information about this double, apply for a data request form to the WDS.