11503+3741 HDS1670AB (HU UMa)

 
 
11h 50m 19.06s +37 40' 51.7" P.A. 22 sep 1.2 mag 11.95,12.50 Sp M0V dist. 63.65 pc (207.63 l.y.)
 
 
Coord 2000
11503+3741
Discov num
HDS1670
Comp
AB
Coord arcsec 2000
11 50 19.06 +37 40 51.7
Date first
1991
Date last
2012
Obs
5
Pa first
28
Pa last
22
P.A. Now (θ)
22°
Sep first
1.2
Sep last
1.2
Sep. Now (ρ)
1.2"
Mag pri
11.95
Mag sec
12.50
delta mag (ΔM)
0.55
Spectral class
M0V (red)
Pri motion ra
-131
Sec motion ra
-131
Pri motion dec
-074
Sec motion dec
-074
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
11503+3741 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show HU UMa 11503+3741 HDS1670 AB 1991 2012 5 22 1.2 11.95 12.50 0.55 <===
Show 11503+3741 HJ 510 AB,C 1827 2016 13 253 25.0 11.95 11.88 0.07
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
21.7
Precise sep
1.239
Var name
HU UMa
Cdsa2 id
HDS 1670 AB
Constellation
Ursa Major
HIP
57731
Tycho2
3014-00564-1
Ra deg
11.838627777777779
De deg
37.68102777777778
Distance
63.65
Distance ly
207.63
last precise pa
21.7
last precise sep
1.239
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
11503+3741 HDS1670 AB 1991 2 24 1.4 11.95 12.50 M0V 115019.06+374051.7
11503+3741 HDS1670 AB 2008 3 23 1.2 11.95 12.50 M0V N 115019.06+374051.7
11503+3741 HDS1670 AB 2012 5 22 1.2 11.95 12.50 M0V N 115019.06+374051.7

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