18422+8818 HJ 2971AB

 
 
18h 42m 13.39s +88 18' 10.9" P.A. 164 sep 48.1 mag 9.93,12.61 Sp K8 dist. 39 pc (127.22 l.y.)
 
 
Coord 2000
18422+8818
Discov num
HJ 2971
Comp
AB
Coord arcsec 2000
18 42 13.39 +88 18 10.9
Date first
2000
Date last
2000
Obs
1
Pa first
164
Pa last
164
P.A. Now (θ)
164°
Sep first
48.1
Sep last
48.1
Sep. Now (ρ)
48.1"
Mag pri
9.93
Mag sec
12.61
delta mag (ΔM)
2.68
Spectral class
K8 (yellow-orange)
Pri motion ra
-093
Sec motion ra
-005
Pri motion dec
+146
Sec motion dec
+002
Notes
rPM=0.975
This double is not physical.
 
 
18422+8818 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 3184 18422+8818 HJ 2971 AB 2000 2000 1 164 48.1 9.93 12.61 2.68 <===
Show 3184 18422+8818 HJ 2971 AC 1966 2012 6 65 28.4 9.93 11.53 1.60
Show 18422+8818 HJ 2971 BC 2000 2004 2 11 61.0 12.61 11.53 1.08
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
163.9
Precise sep
48.11
Constellation
Ursa Minor
SAO
3184
HIP
91720
Tycho2
4660-00194-1
BD
BD+87 183
Distance
39
Distance ly
127.22
last precise pa
163.9
last precise sep
48.11
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18422+8818 HJ 2971 AB 1966 2 226 12.0 9.76 12.68 K8 184213.31+881810.9
18422+8818 HJ 2971 AB 2000 1 164 48.1 9.93 12.61 K8 184213.31+881810.9

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