08458+4853 SDK   2AB

 
 
08h 45m 46.93s +48 52' 43.6" P.A. 84.00 sep 20.2 mag 7.50,15.00 Sp A2V+DA1.3 dist. 111.48 pc (363.65 l.y.)
 
 
Coord 2000
08458+4853
Discov num
SDK   2
Comp
AB
Coord arcsec 2000
08 45 46.93 +48 52 43.6
Date first
1953
Date last
2016
Obs
10
Pa first
79
Pa last
84
P.A. Now (θ)
84°
Sep first
22.0
Sep last
20.2
Sep. Now (ρ)
20.2"
Mag pri
7.50
Mag sec
15.00
delta mag (ΔM)
7.5
Spectral class
A2V+DA1.3 (white/white dwarf)
Pri motion ra
-002
Sec motion ra
-001
Pri motion dec
+008
Sec motion dec
+008
Notes
T (Parallax indicates physical)
rPM=0.121 (< 0.3, Physical double)
This double is physical.
 
 
08458+4853 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 42532 08 45 47 +48 52 44 SDK 2 AB 2016 10 84 20.2 7.50 15.00 7.50 <===
Show 42532 08 45 47 +48 52 44 SKF 2821 AC 2015 3 151 4.3 7.50 15.00 7.50
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
83.9
Precise sep
20.202
Constellation
Ursa Major
SAO
42532
HIP
42994
Tycho2
3420-01971-1
Gaia DR2
1015082573717077504
HD
74389
BD
BD+49 1766
Distance
111.48
Distance ly
363.65
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
08458+4853 SDK 2 AB 2013 8 84 20.2 7.50 15.00 A2V+DA 084546.93+485243.6
08458+4853 SDK 2 AB 2015 9 84 20.2 7.50 15.00 A2V+DA1.3 T 084546.93+485243.6

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