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
 
 
WDS 03195-2145 JC 1 AB (Tau4 Eri) : NOTES
 
 
discov_num notes refcode
JC 1 tau 4 Eri = 16 Eri. A is an irregular variable.
AC: Optical pair, based on study of relative motion of the components
using the method of apparent motion parameters. Kiy2008
AC: Rectilinear solution by Hurowitz et al. (2013). USN2013a
 
 
REFERENCES
 
 
refcode metd author reference
Kiy2008 - Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S. 2008SvAL...32..405K
Kiy2008 SvAL 34, 405, 2008
USN2013a lin - Hurowitz, J.L., Hartkopf, W.I., & Mason, B.D. 2013IAUDS.181....1H
USN2013a Inf. Circ. 181, 1, 2013
 
 
DISCOVERER
 
 
idgroup discov author
1 JC Jacob, W.S.
 
 
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 AB 1987 16 289 5.9 3.91 9.50 M3III N 031930.97-214528.3
03195-2145 JC 1 AB 2013 17 291 5.7 3.91 9.50 M3III N 031930.97-214528.3
03195-2145 JC 1 AB 2016 18 290 5.8 3.91 9.50 M3III N 031930.97-214528.3

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WDS 03195-2145 JC 1 AB (Tau4 Eri) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 03195-2145 JC 1 AB (Tau4 Eri) : MEASURES
 
 
No records found.

 
 
WDS 03195-2145 (Tau4 Eri) : VIRTUAL EYEPIECE
 
 

03195-2145 JC 1A mag 3.91 Sp M3III 03195-2145 JC 1B sep 5.4 P.A. 291.40 mag 9.5 03195-2145 JC 1C sep 36.3 P.A. 124.90 mag 11.3 03195-2145 JC 1D sep 127.1 P.A. 292.30 mag 13.1 03195-2145 JC 1Db sep 127.4 P.A. 293.60 mag 13.1 03195-2145 JC 1E sep 119.0 P.A. 272.80 mag 12.58 03195-2145 JC 1F sep 155.2 P.A. 233.90 mag 12.33 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 03195-2145 (Tau4 Eri) : ALADIN DSS IMAGE @ 03h 19m 30.97s -21° 45' 28.3"
 
 
 
 
WDS 03195-2145 JC 1 AB (Tau4 Eri) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

03195-2145 JC 1AB distance=0' 03195-2145 JC 1Da,Db distance=3' 03168-2204 I 465 distance=43' 03184-2231 SEE 23 distance=48' 03189-2054 ARA1266 distance=52' 03172-2041 SKF 422 distance=72' 03247-2131 HJ 3574 distance=75' 03172-2302 H N 18 distance=83' 03140-2115 BRT 299 distance=83' 03227-2258 UC 996 distance=85' 03234-2253 ARA1975 distance=86' 03152-2037 DON 49 distance=92' 03217-2019 HJ 3570 distance=92' 03203-2007 LDS3480 distance=99' 03125-2130 LDS3465 distance=100' 03163-2010 ARA 834 distance=106' 03128-2244 ARA1973 distance=110' 03231-2323 KPP2451 distance=110' 03168-1956 HJ 3561 distance=116' 03270-2047 CLZ 13 distance=120' 03109-2200 B 683 distance=121' 03251-2321 UC 1002 distance=124' 03106-2146 DON1061 distance=125' 03217-1943 RST2304 distance=126' 03105-2145 SKF2170 distance=126' 03103-2244 STN 6 distance=142' 03142-1942 TDS2490 distance=145' 03165-2411 RST2299 distance=152' 03161-1921 LSC 24 distance=153' 03304-2202 DON 51 distance=153' 03200-1911 UC 985 distance=155' 03269-2344 RSS 4 distance=157' 03105-2012 SKF2169 distance=158' 03107-2007 CBL 120 distance=159' 03132-1936 DON 46 distance=160' 03181-1904 I 341AB distance=163' 03181-1904 I 341AC distance=163' 03246-1915 RST2307 distance=167' 03121-2400 TDS2477 distance=170' 03289-1959 I 720AB distance=170' 03289-1959 I 720BC distance=170' 03281-1945 SKF2172 distance=171' 03278-2352 LDS3496 distance=173' 03214-1852 LDS5421 distance=175' 03312-2253 LDS3499 distance=176' 03282-2413 TDS2555 distance=191' 03256-1855 GWP 468 distance=191' 03204-1835 UC 987 distance=192' 03187-1834 HJ 3565 distance=193' 03059-2113 ARA1264 distance=194' 03294-2406 GAA 18 distance=196' grafico limitrofi
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show 03195-2145 JC 1 AB 290 5.8
Show 03195-2145 JC 1 AC 123 38.2
Show 03195-2145 JC 1 AD 292 126.9
Show 03195-2145 JC 1 AE 273 128.1
Show 03195-2145 JC 1 AF 236 163.1
Show 03195-2145 JC 1 Da,Db 18 2.9 3
Show 03168-2204 I 465 54 1.4 43
Show 03184-2231 SEE 23 127 0.1 48
Show 03189-2054 ARA1266 93 10.6 52
Show 03172-2041 SKF 422 52 5.7 72
Show 03247-2131 HJ 3574 86 16.4 75
Show 03172-2302 H N 18 256 9.0 83
Show 03140-2115 BRT 299 54 5.0 83
Show 03227-2258 UC 996 130 15.2 85
Show 03234-2253 ARA1975 246 10.9 86
Show 03152-2037 DON 49 256 2.2 92
Show 03217-2019 HJ 3570 256 34.0 92
Show 03203-2007 LDS3480 30 27.2 99
Show 03125-2130 LDS3465 73 3.7 100
Show 03163-2010 ARA 834 203 9.4 106
Show 03128-2244 ARA1973 146 11.4 110
Show 03231-2323 KPP2451 218 21.6 110
Show 03168-1956 HJ 3561 152 25.7 116
Show 03270-2047 CLZ 13 28 61.9 120
Show 03109-2200 B 683 58 7.1 121
Show 03251-2321 UC 1002 191 63.0 124
Show 03106-2146 DON1061 174 4.2 125
Show 03217-1943 RST2304 91 2.1 126
Show 03105-2145 SKF2170 1 12.0 126
Show 03103-2244 STN 6 354 4.8 142
Show 03142-1942 TDS2490 270 0.4 145
Show 03165-2411 RST2299 190 4.1 152
Show 03161-1921 LSC 24 343 0.1 153
Show 03304-2202 DON 51 183 0.6 153
Show 03200-1911 UC 985 49 24.2 155
Show 03269-2344 RSS 4 29 26.2 157
Show 03105-2012 SKF2169 162 81.9 158
Show 03107-2007 CBL 120 314 59.8 159
Show 03132-1936 DON 46 339 5.0 160
Show 03181-1904 I 341 AB 160 4.1 163
Show 03181-1904 I 341 AC 94 52.9 163
Show 03246-1915 RST2307 218 1.2 167
Show 03121-2400 TDS2477 231 1.0 170
Show 03289-1959 I 720 AB 44 25.9 170
Show 03289-1959 I 720 BC 343 2.3 170
Show 03281-1945 SKF2172 341 71.9 171
Show 03278-2352 LDS3496 321 14.1 173
Show 03214-1852 LDS5421 166 25.9 175
Show 03312-2253 LDS3499 55 11.8 176
Show 03282-2413 TDS2555 22 0.5 191
Show 03256-1855 GWP 468 199 50.0 191

 
 
WDS 03195-2145 : COMPONENTS
 
 
  A B C D Db E
B pa=291.4°
sep=5.44"
 
C pa=124.9°
sep=36.31"
pa=123.1°
sep=41.61"
 
D pa=292.3°
sep=127.08"
pa=292.3°
sep=121.64"
pa=295.1°
sep=162.71"
 
Db pa=293.6°
sep=127.41"
pa=293.7°
sep=121.98"
pa=296.1°
sep=163.17"
pa=16.4°
sep=2.89"
 
E pa=272.8°
sep=119.03"
pa=271.9°
sep=113.88"
pa=280.1°
sep=151.03"
pa=181.8°
sep=42.41"
pa=182.7°
sep=45.21"
 
F pa=233.9°
sep=155.25"
pa=232.2°
sep=152.39"
pa=245.5°
sep=170.58"
pa=183.2°
sep=139.88"
pa=183.5°
sep=142.69"
pa=183.9°
sep=97.49"
 
 
03195-2145 A
 
 
Name Tau4 Eri Coord arcsec 2000 031930.97-214528.3 Mag 3.91 Spectral class M3III (red)
PmRA 51.00 PmDE 32.0 SAO 168460 HIP 15474
Tycho2 5878-01292-1 HD 20720 HR 1003 GC 3979
ADS 2472 BD BD-22 584 CD CD-22 1154 Bayer Tau 4 Eridani
Bayer name Tau4 Flamsteed 16 Eridani Flamsteed name 16 Eri
Tycho2
Tycho2 5878-01292-1 Pflag RAmdeg 49.87917285 DEmdeg -21.75786579
PmRA 50.6 PmDE 31.6 E RAmdeg 3 E DEmdeg 3
E pmRA 0.8 E pmDE 0.8 EpRAm 1991.35 EpDEm 1991.49
Num 16 Q RAmdeg 1.3 Q DEmdeg 1.0 Q pmRA 1.1
Q pmDE 1.0 BTmag 5.787 E BTmag 0.014 VTmag 3.910
E VTmag 0.009 Prox 999 TYC T HIP 15474
CCDM RAdeg 49.87904556 DEdeg -21.75793861 EpRA 1990 1.58
EpDE 1990 1.72 E RAdeg 3.2 E DEdeg 3.3 Posflg
Corr -0.1
SAO
SAO 168460 DelFlag RA1950 PmRA1950 0.0034
DE1950 PmDE1950 0.036 Vmag 4 SpType Mb
Double code Source 70 CatNum 3979 DM BD-22 584
DMcomp BDsup HD 20720 M HD 0
GC 3979 RA1950rad 0.86084519 DE1950rad -0.38290401 PmRA2000 0.0037
PmDE2000 0.033
Hipparcos
Catalog H HIP 15474 Proxy RAhms 03 19 30.97
DEdms -21 45 28.6 Vmag 3.7 VarFlag 2 R Vmag H
RAdeg 49.879 DEdeg -21.7579 AstroRef * Plx 12.63
CCDM 03195-2146 N CCDM I Nsys 1 Ncomp 1
MultFlag V Source Qual M HIP
Theta Rho HD 20720 BD BD-22 584
CD CD-22 1154 CP Dm number -22 584 VIred 2.42
SpType M3/M4III R SpType Coord arcsec 2000 031930.97-214528.6
Hipparcos 2
HIP 15474 Sn 5 So 5 Nc 1
RArad 0.8705534791 DErad -0.3797477351 Plx 10.71 PmRA 51.89
PmDE 32.92 E RArad 0.33 E DErad 0.35 E Plx 0.54
E pmRA 0.46 E pmDE 0.56 Hpmag 3.7303 E Hpmag 0.0024
SHp 0.022 VA 2 BV 1.614 E BV 0.002
VI 2.42
 
 
03195-2145 B
 
 
Coord arcsec 2000 031930.61-214526.3 Mag 9.5 Calc delta mag 5.59 Calc coord yes
 
 
03195-2145 C
 
 
Coord arcsec 2000 031933.11-214549.1 Mag 11.3 PmRA 8.00 PmDE -71.0
Calc delta mag 7.39 Calc coord yes
 
 
03195-2145 D
 
 
Coord arcsec 2000 031922.53-214440.1 Coord calc 031923.12-214441.2 Mag 13.1 Mag composta 12.48
PmRA 4.00 PmDE 15.0 Calc delta mag 9.19
 
 
03195-2145 Db
 
 
Coord arcsec 2000 031922.59-214437.3 Mag 13.1 Calc delta mag 9.19 Calc coord yes
 
 
03195-2145 E
 
 
Coord arcsec 2000 031922.44-214522.5 Mag 12.58 PmRA 62.00 PmDE -26.0
Calc delta mag 8.67 Calc coord yes
 
 
03195-2145 F
 
 
Coord arcsec 2000 031921.96-214659.8 Mag 12.33 PmRA 43.00 PmDE 7.0
Tycho2 5878-00345-1 Calc delta mag 8.42 Calc coord yes
Tycho2
Tycho2 5878-00345-1 Pflag RAmdeg 49.83866304 DEmdeg -21.78314948
PmRA 38.2 PmDE 12.7 E RAmdeg 116 E DEmdeg 137
E pmRA 3.8 E pmDE 4.1 EpRAm 1973.42 EpDEm 1968.28
Num 3 Q RAmdeg 1.2 Q DEmdeg 1.0 Q pmRA 1.2
Q pmDE 1.0 BTmag 12.353 E BTmag 0.165 VTmag 12.331
E VTmag 0.196 Prox 999 TYC HIP
CCDM RAdeg 49.83856833 DEdeg -21.78317861 EpRA 1990 1.69
EpDE 1990 1.69 E RAdeg 135.3 E DEdeg 168.4 Posflg
Corr 0.1