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Current system
05068-0439
STF 642 AC


Nearby doubles
31' : 05078-0505
BUP 74AB
Cursa

41' : 05064-0520
FOX 139

42' : 05041-0425
GWP 641

49' : 05071-0351
RST4267

50' : 05043-0514
J 319

56' : 05036-0509
HJ 31AB

60' : 05106-0456
A 50

62' : 05096-0356
RST4268

71' : 05046-0542
TDS3057

71' : 05082-0330
OL 94

74' : 05022-0408
CVS 267

75' : 05096-0540
TOI 940AB

81' : 05040-0330
A 2803

82' : 05067-0318
CVS 286

82' : 05013-0431
LDS3634

85' : 05045-0556
DAM 386AB

87' : 05103-0327
J 308

88' : 05027-0542
HJ 2247AB

91' : 05011-0408
RST4264AB

91' : 05043-0602
A 481AB

92' : 05041-0602
B 9002

96' : 05038-0316
SLW 178

98' : 05037-0606
KPP1909

101' : 05135-0439
HJ 2257

102' : 05043-0614
WSP 35AB

104' : 05005-0356
TDS3037



Selections
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Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

05068-0439 STF 642 AC

 
 
05h 06m 45.65s -04° 39' 18.6" P.A. 10.00 sep 52.2 mag 5.12,10.80 Sp B9V+A1V dist. 94.7 pc (308.91 l.y.)
 
 
Coord 2000 05068-0439 Discov num STF 642 Comp AC Coord arcsec 2000 05 06 45.65 -04 39 18.6
Date first 1832 Date last 2011 Obs 11
Pa first 14 Pa last 9.6 P.A. Now (θ) 9.6°
Sep first 47.0 Sep last 52.17 Sep. Now (ρ) 52.17"
Mag pri 5.12 Mag sec 10.80 delta mag (ΔM) 5.68 Spectral class B9V+A1V (blue-white/white)
Pri motion ra +011 Sec motion ra +010
Pri motion dec -001 Sec motion dec -003
Notes N W (See Notes, )
rPM=0.202 (< 0.3, Physical double)
This double is physical.
 
 
05068-0439 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 66 Eri 131777 05 06 46 -04 39 19 HUB 5 AB 1999 1 233 1.6 5.12 9.38 4.26
Show 131777 05 06 46 -04 39 19 STF 642 AC 2011 11 10 52.2 5.12 10.80 5.68 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name NSV1831 Eri Constellation Eridanus SAO 131777 HIP 23794
Tycho2 4758-01506-1 Gaia DR2 3212019815193261568 HD 32964 HR 1657
GC 6246 ADS 3698 BD BD-04 1044 Flamsteed 66 Eridani
Flamsteed name 66 Eri Distance 94.7 Distance ly 308.91
 
 
WDS 05068-0439 STF 642 AC : NOTES
 
 
discov_num notes refcode
STF 642 66 Eri. A is a spectroscopic binary.
 
 
REFERENCES
 
 
refcode metd author reference
Hub2001 A - Hubrig, S., Le Mignant, D., North, P., & Krautter, J. 2001A&A...372..152H
Hub2001 A&A 372, 152, 2001
STFA (F. Struve DD - Appendix list #1) ...................
STFB (F. Struve DD - Appendix list #2) ...................
StF1833A Ma - Struve, F.G.W. 1833MmRAS...5...13H
StF1833A +Mc cited by Herschel (MemRAS 5, 13, 1833)
StF1833B Ma - Struve, F.G.W. 1833AN.....10..389B
StF1833B cited by Bessel (AN 10, 389, 1833)
StF1837 Ma - Struve, F.G.W. 1837AN.....14...249
StF1837 Stellarum duplicium et multiplicium mensurae micrometricae...
StF1837 (Dorpat, Academiae scientiarum caesareae petropolitaneifique), 1837
StF1844A Ma - Struve, F.G.W. 1844QB43.S66.......
StF1844A cited by Smyth (Cycle of Celestial Objects 2, 1844)
StF1852A Ma - Struve, F.G.W. .
StF1852A cited by Bishop (Bishop Obs. Astron. Observations 1852)
StF1865A Ma - Struve, F.G.W. 1865AN.....64...81E
StF1865A cited by Engelmann (AN 64, 81, #1518, 1865)
StF1875A Ma - Struve, F.G.W. 1875AN.....85..323D
StF1875A cited by Doberck, 1875 (see Dob1875b,f,g,h)
StF1878 Ma - Struve, F.G.W. .
StF1878 Pulkova Observations 9, 1878
StF1878B Ma - Struve, F.G.W. 1878Obs.....2..239G
StF1878B cited by Gledhill (Obs 2, 239, 1878)
StF1880A Ma - Struve, F.G.W. 1880Obs.....3..535G
StF1880A cited by Gledhill (Obs 3, 535, 1880)
StF1906A Ma - Struve, F.G.W. 1906QB821.B972.....
StF1906A cited in BDS (Burnham Double Star Cat.), 1906
StF1906B Ma - Struve, F.G.W. 1906MmRAS..56....1L
StF1906B cited by Lewis (MemRAS 56, 1, 1906)
StF1922A Ma - Struve, F.G.W. 1922AN....216...49R
StF1922A cited by Rabe (AN 216, 49, 1922)
StF1932A Ma - Struve, F.G.W. 1932QB821.A43......
StF1932A cited in ADS (Aitken Double Star Cat.), 1932
StF2002 - - Weis, J.
StF2002 F. G. W. Struve's double stars : the Dorpat catalogue; the Pulkovo catalogue
StF2002 USNO Library : QB 821 .S8 W49 2002
StF2022 - - email note from Jan Weis: 6 July 2022
StF9999 Ma - Struve, F.G.W. ...................
StF9999 Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
05068-0439 STF 642 AC 1998 9 10 53.1 5.12 10.70 B9V+A1V N D 050645.65-043918.6
05068-0439 STF 642 AC 2011 10 10 52.2 5.12 10.70 B9V A1V N D 050645.65-043918.6

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

 
 
WDS 05068-0439 STF 642 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 05068-0439 STF 642 AC : MEASURES
 
 
No records found.

 
 
WDS 05068-0439 : VIRTUAL EYEPIECE
 
 

05068-0439 HUB 5A mag 5.12 Sp B9mnp 05068-0439 HUB 5B sep 1.6 P.A. 232.50 mag 9.38 05068-0439 STF 642C sep 52.2 P.A. 9.60 mag 10.8 Sp A1V virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 05068-0439 : ALADIN DSS IMAGE @ 05h 06m 45.65s -04° 39' 18.6"
 
 
 
 
WDS 05068-0439 STF 642 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

05068-0439 STF 642AC distance=0' 05078-0505 BUP 74AB (Cursa) distance=31' 05078-0505 DRS 41AC (Cursa) distance=31' 05064-0520 FOX 139 distance=41' 05041-0425 GWP 641 distance=42' 05071-0351 RST4267 distance=49' 05043-0514 J 319 distance=50' 05036-0509 HJ 31AB distance=56' 05036-0509 SIN 127AC distance=56' 05106-0456 A 50 distance=60' 05096-0356 RST4268 distance=62' 05046-0542 TDS3057 distance=71' 05082-0330 OL 94 distance=71' 05022-0408 CVS 267 distance=74' 05096-0540 TOI 940Aa,Ab distance=75' 05096-0540 TOI 940AB distance=75' 05040-0330 A 2803 distance=81' 05067-0318 CVS 286 distance=82' 05013-0431 LDS3634 distance=82' 05045-0556 DAM 386AB distance=85' 05045-0556 DAM 386AC distance=85' 05103-0327 J 308 distance=87' 05027-0542 HJ 2247CD distance=87' 05027-0542 HJ 2247AB distance=88' 05027-0542 HJ 2247AC distance=88' 05011-0408 RST4264AB distance=91' 05043-0602 A 481AB distance=91' 05041-0602 B 9002 distance=92' 05038-0316 SLW 178 distance=96' 05037-0606 KPP1909 distance=98' 05135-0439 HJ 2257 distance=101' 05043-0614 WSP 35AB distance=102' 05043-0614 WSP 35AC distance=102' 05005-0356 TDS3037 distance=104' 05123-0333 OL 87 distance=106' 05129-0347 BRT 534 distance=107' 05141-0448 RST4269 distance=110' 05036-0259 BAG 41 distance=112' 05070-0631 TDS3069 distance=112' 05127-0330 SKF1327 distance=113' 05132-0539 TDS3112 distance=113' 05051-0631 A 482 distance=115' 05040-0251 STF 639AB distance=116' 05000-0333 JNN 29 distance=122' 05084-0233 BAL 34 distance=129' 04582-0452 SLW 175 distance=129' 05125-0302 A 51 distance=130' 04581-0447 RST4262 distance=131' 05061-0651 SKF 776 distance=133' 05111-0242 BAL 35BC distance=135' 05111-0242 HSW 5BE distance=135' 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 05068-0439 HUB 5 AB 233 1.6
Show 05068-0439 STF 642 AC 10 52.2
Show Cursa 05078-0505 BUP 74 AB 138 118.3 31
Show Cursa 05078-0505 DRS 41 AC 192 204.6 31
Show 05064-0520 FOX 139 61 8.8 41
Show 05041-0425 GWP 641 233 32.6 42
Show 05071-0351 RST4267 224 3.0 49
Show 05043-0514 J 319 234 3.3 50
Show 05036-0509 HJ 31 AB 73 13.9 56
Show 05036-0509 SIN 127 AC 148 25.3 56
Show 05106-0456 A 50 107 3.2 60
Show 05096-0356 RST4268 229 6.8 62
Show 05046-0542 TDS3057 20 0.5 71
Show 05082-0330 OL 94 264 2.6 71
Show 05022-0408 CVS 267 329 0.3 74
Show 05096-0540 TOI 940 Aa,Ab 56 0.1 75
Show 05096-0540 TOI 940 AB 132 2.5 75
Show 05040-0330 A 2803 49 0.3 81
Show 05067-0318 CVS 286 252 1.3 82
Show 05013-0431 LDS3634 253 2.8 82
Show 05045-0556 DAM 386 AB 192 7.9 85
Show 05045-0556 DAM 386 AC 104 17.3 85
Show 05103-0327 J 308 153 3.6 87
Show 05027-0542 HJ 2247 CD 33 1.2 87
Show 05027-0542 HJ 2247 AB 57 20.5 88
Show 05027-0542 HJ 2247 AC 16 33.4 88
Show 05011-0408 RST4264 AB 167 3.4 91
Show 05043-0602 A 481 AB 282 0.4 91
Show 05041-0602 B 9002 227 3.6 92
Show 05038-0316 SLW 178 277 87.9 96
Show 05037-0606 KPP1909 23 15.0 98
Show 05135-0439 HJ 2257 271 32.8 101
Show 05043-0614 WSP 35 AB 260 12.1 102
Show 05043-0614 WSP 35 AC 263 19.8 102
Show 05005-0356 TDS3037 89 0.6 104
Show 05123-0333 OL 87 303 2.4 106
Show 05129-0347 BRT 534 172 4.2 107
Show 05141-0448 RST4269 135 0.2 110
Show 05036-0259 BAG 41 232 0.8 112
Show 05070-0631 TDS3069 134 1.2 112
Show 05127-0330 SKF1327 14.7 113
Show 05132-0539 TDS3112 113 0.5 113
Show 05051-0631 A 482 174 5.0 115
Show 05040-0251 STF 639 AB 81 5.5 116
Show 05000-0333 JNN 29 40 0.1 122
Show 05084-0233 BAL 34 212 11.8 129
Show 04582-0452 SLW 175 240 168.4 129
Show 05125-0302 A 51 105 1.5 130
Show 04581-0447 RST4262 24 0.3 131
Show 05061-0651 SKF 776 64 12.7 133
Show 05111-0242 BAL 35 BC 99 16.1 135

 
 
WDS 05068-0439 : COMPONENTS
 
 
  A B
B pa=232.5°
sep=1.61"
 
C pa=9.6°
sep=52.17"
pa=10.7°
sep=53.35"
 
 
05068-0439 A
 
 
Name 66 Eri Coord arcsec 2000 050645.65-043918.6 Mag 5.12 Spectral class B9mnp (blue-white)
PmRA 7.00 PmDE -9.0 SAO 131777 HIP 23794
Tycho2 4758-01506-1 HD 32964 HR 1657 GC 6246
BD BD-04 1044 Flamsteed 66 Eridani Flamsteed name 66 Eri
Tycho2
Tycho2 4758-01506-1 Pflag X RAmdeg DEmdeg
PmRA PmDE E RAmdeg E DEmdeg
E pmRA E pmDE EpRAm EpDEm
Num Q RAmdeg Q DEmdeg Q pmRA
Q pmDE BTmag 5.026 E BTmag 0.014 VTmag 5.088
E VTmag 0.009 Prox 999 TYC T HIP 23794
CCDM RAdeg 76.69019500 DEdeg -4.65516278 EpRA 1990 1.67
EpDE 1990 1.40 E RAdeg 3.4 E DEdeg 3.6 Posflg
Corr 0.0
SAO
SAO 131777 DelFlag RA1950 PmRA1950 0.0007
DE1950 PmDE1950 0.009 Vmag 5.2 SpType B9
Double code Source 70 CatNum 6246 DM BD-04 1044
DMcomp BDsup HD 32964 M HD 0
GC 6246 RA1950rad 1.32770249 DE1950rad -0.08238912 PmRA2000 0.0011
PmDE2000 0.008
Hipparcos
Catalog H HIP 23794 Proxy RAhms 05 06 45.65
DEdms -04 39 18.6 Vmag 5.12 VarFlag R Vmag H
RAdeg 76.6902 DEdeg -4.65516 AstroRef Plx 11.65
CCDM 05068-0439 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 32964 BD BD-04 1044
CD CP Dm number -04 1044 VIred -0.07
SpType B9.5V R SpType Coord arcsec 2000 050645.65-043918.6
Hipparcos 2
HIP 23794 Sn 5 So 0 Nc 1
RArad 1.3384964122 DErad -0.0812479228 Plx 10.56 PmRA 10.7
PmDE -0.78 E RArad 0.29 E DErad 0.27 E Plx 0.34
E pmRA 0.38 E pmDE 0.35 Hpmag 5.0924 E Hpmag 0.0006
SHp 0.005 VA 0 BV -0.059 E BV 0.003
VI -0.07
CCDM
Ccdm 05068-0439 RComp Comp A Note1
Note2 Discov num DRAs -2.33 DDEs -17.3
R dRAs 10 Year Theta Rho
Obs 2 Vmag 5.3 Sp B9 PmNote *
PmRA 9 PmDE 9 Dm number -04 1044 Cat1 BD
Name2 131777 Cat2 SAO HD 32964 M HD
ADS BDS A 3698 M ADS BDS N IDS IDS 05018S0447A
HIC 23794
 
 
05068-0439 B
 
 
Coord arcsec 2000 050645.56-043919.6 Mag 9.38 Calc delta mag 4.26 Calc coord yes
CCDM
Ccdm 05068-0439 RComp Comp B Note1
Note2 Discov num STF 642 DRAs -1.71 DDEs 34.7
R dRAs 90 Year 1879 Theta 009 Rho 52.8
Obs 6 Vmag 8.5 Sp PmNote
PmRA 9 PmDE 9 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 3698 M ADS BDS N IDS IDS 05018S0447B
HIC
 
 
05068-0439 C
 
 
Coord arcsec 2000 050646.23-043827.2 Mag 10.8 Spectral class A1V (white) PmRA 10.00
PmDE -3.0 Calc delta mag 5.68 Calc coord yes