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Doubles in session


Current system
04239+0928
HU 304
66 Tau


Nearby doubles
14' : 04230+0924
YSC 31AB

28' : 04235+0954
ITO 24AB

36' : 04250+0856
HEI 641

44' : 04210+0935
LDS5542

59' : 04278+0932
SKF1829

64' : 04268+0843
HJ 678AB

68' : 04278+1001
STF 549AB

72' : 04280+1004
A 2033

75' : 04208+1026
LDS5541

85' : 04217+1046
TOK 84

87' : 04253+0804
WIS 106

88' : 04252+0803
LDS3584

90' : 04275+1039
STZ 7

96' : 04268+1052
PAT 8

96' : 04301+0902
CBL 225

103' : 04170+0941
UC 1145

104' : 04300+1016
LDS5568

107' : 04288+1045
GWP 587

113' : 04224+1118
PAT 5

115' : 04285+1059
HEI 457

116' : 04233+1123
STF 535

116' : 04192+1100
BPM 98

117' : 04220+0734
SKF1688

118' : 04275+1113
BU 1186

119' : 04259+1123
GWP 584

122' : 04159+0957
LDS5526



Selections
Full WDS
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.

04239+0928 HU 304 (66 Tau)

 
 
04h 23m 51.84s +09° 27' 39.5" P.A. 35.00 sep 0.3 mag 5.80,5.90 Sp A0V+A1V dist. 121.36 pc (395.88 l.y.)
 
 
Coord 2000 04239+0928 Discov num HU  304 Comp Coord arcsec 2000 04 23 51.84 +09 27 39.5
Date first 1901 Date last 2018 Obs 146
Pa first 24 Pa last 35 P.A. Now (θ) 41°
Sep first 0.3 Sep last 0.306 Sep. Now (ρ) 0.312"
Mag pri 5.80 Mag sec 5.90 delta mag (ΔM) 0.1 Spectral class A0V+A1V (white/white)
Pri motion ra -024 Sec motion ra
Pri motion dec -005 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name 66 Tau Constellation Taurus SAO 111791 HIP 20522
Tycho2 0672-01284-1 HD 27820 HR 1381 GC 5325
ADS 3182 BD BD+09 570 Flamsteed 66 Tauri Flamsteed name 66 Tau
Distance 121.36 Distance ly 395.88
 
 
ORBITAL ELEMENTS
 
 
Period (P)54.77y Periastron (T)1937.24y Semi-major axis (a)0.188a
Eccentricity (e)0.72 Inclination (i)34.2° Longitude of periastron (ω)332°
Node (Ω)239.8° Notesn ReferenceHrt2000b
Equinox Last observation1997 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 354.2 0.167
2001 358.6 0.181
2002 2.4 0.194
2003 5.7 0.207
2004 8.6 0.218
2005 11.3 0.229
2006 13.7 0.240
2007 16.0 0.249
2008 18.0 0.258
2009 20.0 0.266
2010 21.8 0.273
2011 23.6 0.280
2012 25.2 0.286
2013 26.8 0.292
2014 28.4 0.296
2015 29.9 0.301
2016 31.3 0.304
2017 32.7 0.307
2018 34.1 0.310
2019 35.5 0.311
2020 36.9 0.312
2021 38.3 0.313
2022 39.6 0.313
2023 41.0 0.312
2024 42.4 0.311
2025 43.7 0.308
2026 45.2 0.306
2027 46.6 0.302
2028 48.1 0.298
2029 49.6 0.293
2030 51.2 0.287


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.


 
  


wds04239%2B0928a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 04239+0928 HU 304 (66 Tau) : NOTES
 
 
discov_num notes refcode
HU 304 66 Tau.
Spectral types and masses of components assigned by ten Brummelaar et
al., based on adaptive optics observations. TtB2000
Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
masses of 4.81 +/- 1.40, 6.11, and 4.43 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
Hrt2000b orb - Hartkopf, W.I. 2000IAUDS.141....1H
Hrt2000b Inf. Circ. 141, 1, 2000
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
TtB2000 Ac j ten Brummelaar, T.A., Mason, B.D., McAlister, H.A., Roberts, L.C., Jr., 2000AJ....119.2403T
TtB2000 Turner, N.H., Hartkopf, W.I., & Bagnuolo, W.G., Jr.
TtB2000 AJ 119, 2403, 2000 (magnitude differences from Mt. Wilson AO)
 
 
DISCOVERER
 
 
idgroup discov author
1 HU Hussey, W.F.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
04239+0928 HU 304 2005 136 12 0.2 5.80 5.90 A0V+A1V NOD 042351.84+092739.5
04239+0928 HU 304 2008 139 19 0.3 5.80 5.90 A0V+A1V NOD 042351.84+092739.5
04239+0928 HU 304 2009 142 22 0.3 5.80 5.90 A0V+A1V NOD 042351.84+092739.5
04239+0928 HU 304 2010 143 21 0.3 5.80 5.90 A0V+A1V NOD 042351.84+092739.5
04239+0928 HU 304 2013 144 26 0.3 5.80 5.90 A0V A1V NOD 042351.84+092739.5
04239+0928 HU 304 2016 144 31 0.3 5.80 5.90 A0V+A1V NO 042351.84+092739.5
04239+0928 HU 304 2018 146 35 0.3 5.80 5.90 A0V+A1V NO 042351.84+092739.5

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

 
 
WDS 04239+0928 HU 304 (66 Tau) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 04239+0928 HU 304 (66 Tau) : MEASURES
 
 
No records found.

 
 
WDS 04239+0928 (66 Tau) : VIRTUAL EYEPIECE
 
 

04239+0928 HU 304A mag 5.8 Sp A0V 04239+0928 HU 304B sep 0.3 P.A. 34.60 mag 5.9 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 04239+0928 (66 Tau) : ALADIN DSS IMAGE @ 04h 23m 51.84s +09° 27' 39.5"
 
 
 
 
WDS 04239+0928 HU 304 (66 Tau) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

04239+0928 HU 304 distance=0' 04230+0924 YSC 31AB distance=14' 04230+0924 GII 128Aa,Ab distance=14' 04235+0954 ITO 24AB distance=28' 04235+0954 ITO 24AC distance=28' 04235+0954 ITO 24AD distance=28' 04250+0856 HEI 641 distance=36' 04210+0935 LDS5542 distance=44' 04278+0932 SKF1829 distance=59' 04268+0843 HEI 642Aa,Ab distance=64' 04268+0843 HJ 678AB distance=64' 04268+0843 OPI 2AC distance=64' 04268+0843 TOB 367AD distance=64' 04278+1001 STF 549AB distance=68' 04278+1001 BU 1534AC distance=68' 04280+1004 A 2033 distance=72' 04208+1026 LDS5541 distance=75' 04217+1046 TOK 84 distance=85' 04253+0804 WIS 106 distance=87' 04252+0803 LDS3584 distance=88' 04275+1039 STZ 7 distance=90' 04268+1052 PAT 8 distance=96' 04301+0902 CBL 225 distance=96' 04170+0941 UC 1145 distance=103' 04300+1016 LDS5568 distance=104' 04288+1045 GWP 587 distance=107' 04224+1118 PAT 5 distance=113' 04285+1059 HEI 457 distance=115' 04233+1123 STF 535 distance=116' 04192+1100 BPM 98 distance=116' 04220+0734 SKF1688 distance=117' 04275+1113 BU 1186 distance=118' 04259+1123 GWP 584 distance=119' 04159+0957 LDS5526 distance=122' 04237+1131 LSC 30 distance=124' 04266+1125 LDS5560 distance=125' 04250+0719 GWP 583 distance=131' 04295+1113 GWP 590 distance=135' 04226+0711 GWP 579 distance=138' 04317+1044 LDS5571 distance=139' 04241+0707 OSW 80 distance=141' 04324+0827 NSN 548 distance=141' 04145+0857 LDS3565 distance=141' 04324+1038 HDS 588 distance=145' 04224+1153 WIS 105 distance=148' 04139+0916 BU 547AB distance=148' 04139+0916 BU 547AC distance=148' 04328+0820 LIT 12 distance=149' 04278+1144 MET 39 distance=149' 04216+0658 A 1835 distance=154' 04319+0749 BRT2596 distance=154' 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 04239+0928 HU 304 35 0.3
Show 04230+0924 YSC 31 AB 108 0.5 14
Show 04230+0924 GII 128 Aa,Ab 129 0.1 14
Show 04235+0954 ITO 24 AB 356 1.6 28
Show 04235+0954 ITO 24 AC 307 6.7 28
Show 04235+0954 ITO 24 AD 257 10.6 28
Show 04250+0856 HEI 641 275 2.8 36
Show 04210+0935 LDS5542 343 29.9 44
Show 04278+0932 SKF1829 349 64.3 59
Show 04268+0843 HEI 642 Aa,Ab 109 1.6 64
Show 04268+0843 HJ 678 AB 293 20.8 64
Show 04268+0843 OPI 2 AC 266 165.3 64
Show 04268+0843 TOB 367 AD 277 94.7 64
Show 04278+1001 STF 549 AB 157 25.3 68
Show 04278+1001 BU 1534 AC 350 18.4 68
Show 04280+1004 A 2033 217 0.8 72
Show 04208+1026 LDS5541 342 9.1 75
Show 04217+1046 TOK 84 15 17.7 85
Show 04253+0804 WIS 106 317 999.9 87
Show 04252+0803 LDS3584 22 73.4 88
Show 04275+1039 STZ 7 130 5.3 90
Show 04268+1052 PAT 8 159 0.2 96
Show 04301+0902 CBL 225 252 16.1 96
Show 04170+0941 UC 1145 59 15.1 103
Show 04300+1016 LDS5568 76 59.6 104
Show 04288+1045 GWP 587 245 55.6 107
Show 04224+1118 PAT 5 159 0.0 113
Show 04285+1059 HEI 457 111 1.4 115
Show 04233+1123 STF 535 267 1.1 116
Show 04192+1100 BPM 98 216 109.3 116
Show 04220+0734 SKF1688 289 1.2 117
Show 04275+1113 BU 1186 78 0.1 118
Show 04259+1123 GWP 584 322 5.8 119
Show 04159+0957 LDS5526 200 9.0 122
Show 04237+1131 LSC 30 61 0.0 124
Show 04266+1125 LDS5560 71 19.4 125
Show 04250+0719 GWP 583 236 6.8 131
Show 04295+1113 GWP 590 296 20.3 135
Show 04226+0711 GWP 579 37 48.6 138
Show 04317+1044 LDS5571 148 35.3 139
Show 04241+0707 OSW 80 262 59.5 141
Show 04324+0827 NSN 548 297 3.4 141
Show 04145+0857 LDS3565 127 24.5 141
Show 04324+1038 HDS 588 248 4.0 145
Show 04224+1153 WIS 105 300 999.9 148
Show 04139+0916 BU 547 AB 339 1.3 148
Show 04139+0916 BU 547 AC 228 28.2 148
Show 04328+0820 LIT 12 41 12.0 149
Show 04278+1144 MET 39 249 9.8 149
Show 04216+0658 A 1835 16 0.2 154
Show 04319+0749 BRT2596 325 6.6 154

 
 
WDS 04239+0928 : COMPONENTS
 
 
  A
B pa=34.6°
sep=0.30"
 
 
04239+0928 A
 
 
Componente originario normalizzato AB Name 66 Tau Coord arcsec 2000 042351.84+092739.5 Mag 5.8
Spectral class A0V (white) PmRA -24.00 PmDE -5.0 SAO 111791
HIP 20522 Tycho2 0672-01284-1 HD 27820 HR 1381
GC 5325 BD BD+09 570 Flamsteed 66 Tauri Flamsteed name 66 Tau
Tycho2
Tycho2 0672-01284-1 Pflag RAmdeg 65.96593538 DEmdeg 9.46096563
PmRA -21.3 PmDE -6.6 E RAmdeg 4 E DEmdeg 4
E pmRA 1.4 E pmDE 1.3 EpRAm 1991.59 EpDEm 1991.53
Num 10 Q RAmdeg 1.0 Q DEmdeg 1.0 Q pmRA 1.1
Q pmDE 1.2 BTmag 5.202 E BTmag 0.014 VTmag 5.109
E VTmag 0.009 Prox 999 TYC T HIP 20522
CCDM RAdeg 65.96598500 DEdeg 9.46098083 EpRA 1990 1.75
EpDE 1990 1.69 E RAdeg 3.6 E DEdeg 3.9 Posflg
Corr -0.4
SAO
SAO 111791 DelFlag RA1950 PmRA1950 -0.0012
DE1950 PmDE1950 -0.006 Vmag 5.1 SpType A2
Double code Source 70 CatNum 5325 DM BD+09 570
DMcomp BDsup HD 27820 M HD 0
GC 5325 RA1950rad 1.13941564 DE1950rad 0.16312134 PmRA2000 -0.001
PmDE2000 -0.008
Hipparcos
Catalog H HIP 20522 Proxy RAhms 04 23 51.84
DEdms +09 27 39.5 Vmag 5.1 VarFlag R Vmag H
RAdeg 65.966 DEdeg 9.46098 AstroRef Plx 8.23
CCDM 04239+0928 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 27820 BD BD+09 570
CD CP Dm number +09 570 VIred 0.12
SpType A3V R SpType Coord arcsec 2000 042351.84+092739.5
Hipparcos 2
HIP 20522 Sn 5 So 0 Nc 1
RArad 1.1513237159 DErad 0.1651253119 Plx 8.24 PmRA -20.32
PmDE -5.32 E RArad 0.25 E DErad 0.22 E Plx 0.31
E pmRA 0.32 E pmDE 0.28 Hpmag 5.143 E Hpmag 0.0009
SHp 0.004 VA 0 BV 0.074 E BV 0.006
VI 0.12
CCDM
Ccdm 04239+0928 RComp Comp A Note1
Note2 Discov num DRAs -2.23 DDEs -20.8
R dRAs 10 Year Theta Rho
Obs 2 Vmag 5.9 Sp A2 PmNote *
PmRA -39 PmDE -8 Dm number +09 570 Cat1 BD
Name2 +09 402 Cat2 AGK2/3 HD 27820 M HD
ADS BDS A 3182 M ADS BDS N IDS IDS 04184N0914A
HIC 20522
 
 
04239+0928 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 042351.85+092739.8 Mag 5.9 Spectral class A1V (white)
Calc delta mag 0.1 Calc coord yes
CCDM
Ccdm 04239+0928 RComp Comp B Note1 *
Note2 Discov num HU 304 DRAs DDEs
R dRAs Year 1901 Theta Rho
Obs 99 Vmag 5.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 3182 M ADS BDS N IDS IDS 04184N0914B
HIC 20522