12137+2118 HU  570

 
 
12h 13m 43.70s +21 17' 42.1" P.A. 103 sep 3 mag 9.20,11.81 Sp G5 dist. 99.6 pc (324.9 l.y.)
 
 
Coord 2000
12137+2118
Discov num
HU  570
Comp
Coord arcsec 2000
12 13 43.70 +21 17 42.1
Date first
1902
Date last
2017
Obs
21
Pa first
104
Pa last
103
P.A. Now (θ)
103°
Sep first
2.5
Sep last
3.0
Sep. Now (ρ)
3"
Mag pri
9.20
Mag sec
11.81
delta mag (ΔM)
2.61
Spectral class
G5 (yellow)
Pri motion ra
-202
Sec motion ra
-199
Pri motion dec
-077
Sec motion dec
-077
Notes
rPM=0.014 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
103.3
Precise sep
3
Cdsa2 id
HU 570
Constellation
Coma Berenices
SAO
82196
HIP
59630
Tycho2
1444-00616-1
BD
BD+22 2453
Ra deg
12.228805555555555
De deg
21.29502777777778
Distance
99.6
Distance ly
324.9
last precise pa
103.3
last precise sep
3
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12137+2118 HU 570 2002 17 113 2.5 9.20 11.81 G5 121343.70+211742.1
12137+2118 HU 570 2010 19 114 2.6 9.20 11.81 G5 121343.70+211742.1
12137+2118 HU 570 2016 20 115 2.6 9.20 11.81 G5 121343.70+211742.1
12137+2118 HU 570 2017 21 103 3.0 9.20 11.81 G5 121343.70+211742.1

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