03195-2145 JC    1AC

 
 
03h 19m 30.97s -21 45' 28.3" P.A. 123 sep 38.2 mag 3.91,11.30 Sp M3III dist. 93.37 pc (304.57 l.y.)
 
 
Coord 2000
03195-2145
Discov num
JC    1
Comp
AC
Coord arcsec 2000
03 19 30.97 -21 45 28.3
Date first
1877
Date last
2013
Obs
14
Pa first
99
Pa last
123
P.A. Now (θ)
123°
Sep first
40.0
Sep last
38.2
Sep. Now (ρ)
38.2"
Mag pri
3.91
Mag sec
11.30
delta mag (ΔM)
7.39
Spectral class
M3III (red)
Pri motion ra
+052
Sec motion ra
+008
Pri motion dec
+033
Sec motion dec
-071
Notes
N L U (See Notes, Linear solution, Proper motion indicates non-physical)
This double is not physical.
 
 
03195-2145 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show Tau4 Eri 168460 03195-2145 JC 1 AB 1857 2013 17 291 5.7 3.91 9.50 5.59
Show 168460 03195-2145 JC 1 AC 1877 2013 14 123 38.2 3.91 11.30 7.39 <===
Show 168460 03195-2145 JC 1 AD 1879 1999 2 292 126.9 3.91 12.48 8.57
Show 168460 03195-2145 JC 1 AE 1879 1999 3 273 128.1 3.91 12.58 8.67
Show 168460 03195-2145 JC 1 AF 1836 2015 8 236 163.1 3.91 12.33 8.42
Show 03195-2145 JC 1 Da,Db 2015 2015 1 16 3.5 13.10 13.10 0.00
Septuple system
6 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Eridanus
SAO
168460
HIP
15474
Tycho2
5878-01292-1
HD
20720
HR
1003
GC
3979
BD
BD-22 584
CD
CD-22 1154
Bayer
Tau 4 Eridani
Bayer name
Tau4 Eri
Flamsteed
16 Eridani
Flamsteed name
16 Eri
Distance
93.37
Distance ly
304.57
last precise pa
122.9
last precise sep
38.203
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
03195-2145 JC 1 AC 1964 10 114 39.3 3.91 10.80 M3III N 031930.97-214528.3
03195-2145 JC 1 AC 1999 11 120 39.9 3.91 10.80 M3III N 031930.97-214528.3
03195-2145 JC 1 AC 2013 13 121 39.2 3.91 11.30 M3III NL 031930.97-214528.3

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