10283+4013 HJ 2531

 
 
10h 28m 20.85s +40 12' 37.9" P.A. 4 sep 8.6 mag 9.73,10.95 Sp F8 dist. 178.89 pc (583.54 l.y.)
 
 
Coord 2000
10283+4013
Discov num
HJ 2531
Comp
Coord arcsec 2000
10 28 20.85 +40 12 37.9
Date first
1831
Date last
2017
Obs
18
Pa first
5
Pa last
4
P.A. Now (θ)
Sep first
9.0
Sep last
8.6
Sep. Now (ρ)
8.6"
Mag pri
9.73
Mag sec
10.95
delta mag (ΔM)
1.22
Spectral class
F8 (yellow-white)
Pri motion ra
+012
Sec motion ra
+013
Pri motion dec
-035
Sec motion dec
-033
Notes
rPM=0.06 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
4.1
Precise sep
8.647
Constellation
Ursa Major
SAO
43354
HIP
51269
Tycho2
3005-00990-1
BD
BD+40 2331
Distance
178.89
Distance ly
583.54
last precise pa
4.1
last precise sep
8.647
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
10283+4013 HJ 2531 1998 13 3 8.6 9.73 10.95 F8 D 102820.85+401237.9
10283+4013 HJ 2531 2010 14 3 8.7 9.73 10.95 F8 D 102820.85+401237.9
10283+4013 HJ 2531 2017 18 4 8.6 9.73 10.95 F8 102820.85+401237.9

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