13477+2128 HDS1939

 
 
13h 47m 42.40s +21 27' 37.7" P.A. 151 sep 1.3 mag 11.47,13.74 Sp M0 dist. 28.03 pc (91.43 l.y.)
 
 
Coord 2000
13477+2128
Discov num
HDS1939
Comp
Coord arcsec 2000
13 47 42.40 +21 27 37.7
Date first
1991
Date last
2016
Obs
7
Pa first
145
Pa last
151
P.A. Now (θ)
151°
Sep first
1.1
Sep last
1.3
Sep. Now (ρ)
1.3"
Mag pri
11.47
Mag sec
13.74
delta mag (ΔM)
2.27
Spectral class
M0 (red)
Pri motion ra
+080
Sec motion ra
+075
Pri motion dec
-088
Sec motion dec
-083
Notes
rPM=0.059 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
150.7
Precise sep
1.319
Constellation
Bootes
HIP
67309
Tycho2
1466-00272-3
BD
BD+22 2632
Distance
28.03
Distance ly
91.43
last precise pa
150.7
last precise sep
1.319
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
13477+2128 HDS1939 1991 2 144 1.2 11.47 13.74 M0 134742.40+212737.7
13477+2128 HDS1939 2007 3 149 1.3 11.47 13.74 M0 134742.40+212737.7
13477+2128 HDS1939 2010 4 149 1.3 11.47 13.74 M0 134742.40+212737.7
13477+2128 HDS1939 2012 6 151 1.3 11.47 13.74 M0 134742.40+212737.7
13477+2128 HDS1939 2016 7 151 1.3 11.47 13.74 M0 134742.40+212737.7

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