10311-2411 B   201AB

 
 
10h 31m 04.97s -24 10' 47.3" P.A. 68 sep 2 mag 7.82,11.67 Sp A9/F0III dist. 193.05 pc (629.73 l.y.)
 
 
Coord 2000
10311-2411
Discov num
B   201
Comp
AB
Coord arcsec 2000
10 31 04.97 -24 10 47.3
Date first
1926
Date last
2017
Obs
17
Pa first
66
Pa last
68
P.A. Now (θ)
68°
Sep first
1.7
Sep last
2.0
Sep. Now (ρ)
2"
Mag pri
7.82
Mag sec
11.67
delta mag (ΔM)
3.85
Spectral class
A9/F0III (white)
Pri motion ra
+006
Sec motion ra
+009
Pri motion dec
-023
Sec motion dec
-021
Notes
rPM=0.152 (< 0.3, Physical double)
This double is physical.
 
 
10311-2411 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 178922 10311-2411 CHR 132 Aa,Ab 1987 1989 2 193 0.1 8.30
Show 178922 10311-2411 B 201 AB 1926 2017 17 68 2.0 7.82 11.67 3.85 <===
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
68.3
Precise sep
1.995
Constellation
Hydra
SAO
178922
HIP
51501
Tycho2
6620-00751-1
HD
91172
CD
CD-23 9339
CP
CP-23 4960
Distance
193.05
Distance ly
629.73
last precise pa
68.3
last precise sep
1.995
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
10311-2411 B 201 AB 1991 5 67 1.9 7.82 11.67 103104.97-241047.3
10311-2411 B 201 AB 2009 6 67 2.0 7.82 11.67 103104.97-241047.3
10311-2411 B 201 AB 2010 7 68 2.0 7.82 11.67 103104.97-241047.3
10311-2411 B 201 AB 2012 8 68 2.0 7.82 11.67 103104.97-241047.3
10311-2411 B 201 AB 2013 10 68 2.0 7.82 11.67 103104.97-241047.3
10311-2411 B 201 AB 2014 12 68 2.0 7.82 11.67 A9/F0III 103104.97-241047.3
10311-2411 B 201 AB 2015 14 68 2.0 7.82 11.67 A9/F0III 103104.97-241047.3
10311-2411 B 201 AB 2017 17 68 2.0 7.82 11.67 A9/F0III 103104.97-241047.3

If you need more information about this double, apply for a data request form to the WDS.