09256+5401 STF1346AB (21 UMa)

 
 
09h 25m 37.88s +54 00' 57.5" P.A. 314 sep 5.8 mag 7.69,8.59 Sp A2V dist. 196.08 pc (639.61 l.y.)
 
 
Coord 2000
09256+5401
Discov num
STF1346
Comp
AB
Coord arcsec 2000
09 25 37.88 +54 00 57.5
Date first
1822
Date last
2017
Obs
65
Pa first
309
Pa last
314
P.A. Now (θ)
314°
Sep first
6.5
Sep last
5.8
Sep. Now (ρ)
5.8"
Mag pri
7.69
Mag sec
8.59
delta mag (ΔM)
0.9
Spectral class
A2V (white)
Pri motion ra
-035
Sec motion ra
-038
Pri motion dec
-022
Sec motion dec
-023
Notes
N (See Notes)
rPM=0.071 (< 0.3, Physical double)
This double is physical.
 
 
09256+5401 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 21 UMa 27249 09256+5401 STF1346 AB 1822 2017 65 314 5.8 7.69 8.59 0.90 <===
Show 27249 09256+5401 STF1346 BC 1879 2003 5 188 94.2 8.59 11.80 3.21
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
314
Precise sep
5.762
Name
21 UMa
Cdsa2 id
STF 1346 AB
Constellation
Ursa Major
SAO
27249
HIP
46239
Tycho2
3806-01555-1
HD
81104
BD
BD+54 1299
Flamsteed
21 Ursae Majoris
Flamsteed name
21 UMa
Ra deg
9.427188888888889
De deg
54.015972222222224
Distance
196.08
Distance ly
639.61
last precise pa
314
last precise sep
5.762
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
09256+5401 STF1346 AB 2003 61 314 5.7 7.69 8.59 A2V D 092537.88+540057.5
09256+5401 STF1346 AB 2014 64 315 5.8 7.69 8.59 A2V N D 092537.88+540057.5
09256+5401 STF1346 AB 2016 64 314 5.7 7.69 8.59 A2V N 092537.88+540057.5
09256+5401 STF1346 AB 2017 65 314 5.8 7.69 8.59 A2V N 092537.88+540057.5

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