03195-2145 JC 1 AB (Tau4 Eri)

03h 19m 30.97s -21° 45' 28.3" P.A. 290.00 sep 5.8 mag 3.91,9.50 Sp M3III dist. 93.37 pc (304.57 l.y.)

Coord 2000 03195-2145 Discov num JC    1 Comp AB Coord arcsec 2000 03 19 30.97 -21 45 28.3
Date first 1857 Date last 2016 Obs 18
Pa first 287 Pa last 290 P.A. Now (θ) 290°
Sep first 5.5 Sep last 5.802 Sep. Now (ρ) 5.802"
Mag pri 3.91 Mag sec 9.50 delta mag (ΔM) 5.59 Spectral class M3III (red)
Pri motion ra +051 Sec motion ra
Pri motion dec +032 Sec motion dec
Notes N (See Notes)




Nature of this double is uncertain.



03195-2145 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Tau4 Eri 168460 03 19 31 -21 45 28 JC 1 AB 2016 18 290 5.8 3.91 9.50 5.59 <===
Show 168460 03 19 31 -21 45 28 JC 1 AC 2013 14 123 38.2 3.91 11.30 7.39
Show 168460 03 19 31 -21 45 28 JC 1 AD 1999 2 292 126.9 3.91 12.48 8.57
Show 168460 03 19 31 -21 45 28 JC 1 AE 1999 3 273 128.1 3.91 12.58 8.67
Show 168460 03 19 31 -21 45 28 JC 1 AF 2015 8 236 163.1 3.91 12.33 8.42
Show 03 19 23 -21 44 40 JC 1 Da,Db 2016 3 18 2.9 13.10 13.10 0.00


Septuple system
6 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Name Tau4 Eri Constellation Eridanus SAO 168460 HIP 15474
Tycho2 5878-01292-1 Gaia DR2 5099455184967337600 HD 20720 HR 1003
GC 3979 ADS 2472 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 Bayer greek τ4 Eri