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Current system
04584-0344
HDS 644
HD 31768


Nearby doubles
15' : 04587-0330
UC 1246

19' : 04575-0335
RST4261

26' : 05000-0333
JNN 29

31' : 04577-0316
CVR 454

33' : 05005-0356
TDS3037

36' : 04562-0331
HDS 640

37' : 04561-0354
HDS 639

40' : 04558-0344
RST4258AB

45' : 04569-0422
KPP 116

47' : 05011-0408
RST4264AB

48' : 04553-0352
RST4257AB

55' : 05001-0255
SLW 176

63' : 05022-0408
CVS 267

63' : 04581-0447
RST4262

65' : 05013-0431
LDS3634

66' : 04569-0243
UC 1240

67' : 04545-0314
RST5501

67' : 04549-0303
J 712

68' : 04582-0452
SLW 175

73' : 04547-0257
J 1348

82' : 04553-0450
HJ 2243

84' : 04536-0302
J 711

85' : 05040-0330
A 2803

85' : 05038-0316
SLW 178

86' : 04578-0219
LDS3629

90' : 05036-0259
BAG 41



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.

04584-0344 HDS 644 (HD 31768)

 
 
04h 58m 26.15s -03° 43' 58.8" P.A. 178.00 sep 0.7 mag 7.12,10.40 Sp F5 dist. 50.84 pc (165.84 l.y.)
 
 
Coord 2000 04584-0344 Discov num HDS 644 Comp Coord arcsec 2000 04 58 26.15 -03 43 58.8
Date first 1991 Date last 2021 Obs 29
Pa first 103 Pa last 178.3 P.A. Now (θ) 178.3°
Sep first 0.6 Sep last 0.699 Sep. Now (ρ) 0.699"
Mag pri 7.12 Mag sec 10.40 delta mag (ΔM) 3.28 Spectral class F5 (yellow-white)
Pri motion ra +078 Sec motion ra
Pri motion dec +048 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 31768 Constellation Orion SAO 131645 HIP 23116
Tycho2 4741-01620-1 Gaia DR2 3212750058416680320 HD 31768 GC 6067
BD BD-03 953 Distance 50.84 Distance ly 165.84
 
 
ORBITAL ELEMENTS
 
 
Period (P)127y Periastron (T)1944.9y Semi-major axis (a)0.743a
Eccentricity (e)0.3 Inclination (i)55.1° Longitude of periastron (ω)283.4°
Node (Ω)36.9° Notes ReferenceTok2019d
Equinox2000 Last observation2019 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 126.6 0.546
2001 129.5 0.548
2002 132.3 0.551
2003 135.1 0.554
2004 137.9 0.558
2005 140.6 0.562
2006 143.3 0.568
2007 145.9 0.573
2008 148.5 0.580
2009 151.0 0.586
2010 153.5 0.594
2011 155.9 0.601
2012 158.2 0.609
2013 160.5 0.618
2014 162.7 0.626
2015 164.8 0.635
2016 166.9 0.644
2017 168.9 0.653
2018 170.9 0.662
2019 172.8 0.671
2020 174.7 0.680
2021 176.5 0.689
2022 178.3 0.698
2023 180.0 0.706
2024 181.7 0.715
2025 183.4 0.723
2026 185.0 0.730
2027 186.6 0.737
2028 188.1 0.744
2029 189.7 0.751
2030 191.2 0.756


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


 
  


wds04584-0344a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 04584-0344 HDS 644 (HD 31768) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Tok2019d orb - Tokovinin, A. 2018IAUDS.198....1C
Tok2019d Inf. Circ. 198, 1, 2019
 
 
DISCOVERER
 
 
idgroup discov author
1 HDS Hipparcos Double Star (from additional DD list)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
04584-0344 HDS 644 2001 2 323 0.8 7.12 10.40 F5 D 045826.15-034358.8
04584-0344 HDS 644 2008 3 330 0.6 7.12 10.40 F5 D 045826.15-034358.8
04584-0344 HDS 644 2010 6 333 0.6 7.12 10.40 F5 D 045826.15-034358.8
04584-0344 HDS 644 2012 7 160 0.6 7.12 10.40 F5 D 045826.15-034358.8
04584-0344 HDS 644 2015 10 165 0.6 7.12 10.40 F5 045826.15-034358.8
04584-0344 HDS 644 2017 14 170 0.7 7.12 10.40 F5 045826.15-034358.8
04584-0344 HDS 644 2018 16 173 0.7 7.12 10.40 F5 045826.15-034358.8
04584-0344 HDS 644 2019 24 175 0.7 7.12 10.40 F5 O 045826.15-034358.8
04584-0344 HDS 644 2020 25 176 0.7 7.12 10.40 F5 O 045826.15-034358.8
04584-0344 HDS 644 2021 29 178 0.7 7.12 10.40 F5 O 045826.15-034358.8

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

 
 
WDS 04584-0344 HDS 644 (HD 31768) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 04584-0344 HDS 644 (HD 31768) : MEASURES
 
 
No records found.

 
 
WDS 04584-0344 (HD 31768) : VIRTUAL EYEPIECE
 
 

04584-0344 HDS 644A mag 7.12 Sp F5 04584-0344 HDS 644B sep 0.7 P.A. 178.30 mag 10.4 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 04584-0344 (HD 31768) : ALADIN DSS IMAGE @ 04h 58m 26.15s -03° 43' 58.8"
 
 
 
 
WDS 04584-0344 HDS 644 (HD 31768) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

04584-0344 HDS 644 distance=0' 04587-0330 UC 1246 distance=15' 04575-0335 RST4261 distance=19' 05000-0333 JNN 29 distance=26' 04577-0316 CVR 454 distance=31' 05005-0356 TDS3037 distance=33' 04562-0331 HDS 640 distance=36' 04561-0354 HDS 639 distance=37' 04558-0344 RST4258AB distance=40' 04558-0344 UC 1234AC distance=40' 04569-0422 KPP 116 distance=45' 05011-0408 RST4264AB distance=47' 04553-0352 RST4257AB distance=48' 04553-0352 HJ 352AB,C distance=48' 04553-0352 HJ 352CD distance=49' 05001-0255 SLW 176 distance=55' 05022-0408 CVS 267 distance=63' 04581-0447 RST4262 distance=63' 05013-0431 LDS3634 distance=65' 04569-0243 UC 1240 distance=66' 04545-0314 RST5501 distance=67' 04549-0303 J 712 distance=67' 04582-0452 SLW 175 distance=68' 04547-0257 J 1348 distance=73' 04553-0450 HJ 2243 distance=82' 04536-0302 J 711 distance=84' 05040-0330 A 2803 distance=85' 05038-0316 SLW 178 distance=85' 04578-0219 LDS3629 distance=86' 05036-0259 BAG 41 distance=90' 04582-0213 HJ 689 distance=92' 04564-0510 HDS 641Aa,Ab distance=92' 04564-0510 SHJ 48AB distance=92' 04564-0510 GMC 11AC distance=92' 04544-0233 TVB 80 distance=94' 04542-0452 SLW 174 distance=94' 05041-0425 GWP 641 distance=95' 05040-0251 STF 639AB distance=99' 05007-0204 VIG 7AB distance=106' 05007-0204 VIG 7AC distance=106' 05007-0204 VIG 7AD distance=106' 05007-0204 VIG 7AE distance=106' 05007-0204 VIG 7AF distance=106' 05007-0204 VIG 7AG distance=106' 05037-0232 J 307A,BC distance=107' 05037-0232 J 307BC distance=107' 04516-0258 UC 1224 distance=113' 04592-0151 UC 1251 distance=114' 05036-0509 HJ 31AB distance=116' 05036-0509 SIN 127AC distance=116' 04563-0152 A 115 distance=117' 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 04584-0344 HDS 644 178 0.7
Show 04587-0330 UC 1246 176 10.4 15
Show 04575-0335 RST4261 96 1.4 19
Show 05000-0333 JNN 29 40 0.1 26
Show 04577-0316 CVR 454 39 16.2 31
Show 05005-0356 TDS3037 89 0.6 33
Show 04562-0331 HDS 640 170 0.2 36
Show 04561-0354 HDS 639 118 0.6 37
Show 04558-0344 RST4258 AB 66 2.1 40
Show 04558-0344 UC 1234 AC 296 33.7 40
Show 04569-0422 KPP 116 87 3.6 45
Show 05011-0408 RST4264 AB 167 3.4 47
Show 04553-0352 RST4257 AB 42 0.1 48
Show 04553-0352 HJ 352 AB,C 345 52.1 48
Show 04553-0352 HJ 352 CD 161 15.8 49
Show 05001-0255 SLW 176 285 9.0 55
Show 05022-0408 CVS 267 329 0.3 63
Show 04581-0447 RST4262 24 0.3 63
Show 05013-0431 LDS3634 253 2.8 65
Show 04569-0243 UC 1240 341 40.0 66
Show 04545-0314 RST5501 144 0.1 67
Show 04549-0303 J 712 172 2.4 67
Show 04582-0452 SLW 175 240 168.4 68
Show 04547-0257 J 1348 94 4.9 73
Show 04553-0450 HJ 2243 149 5.8 82
Show 04536-0302 J 711 175 3.0 84
Show 05040-0330 A 2803 49 0.3 85
Show 05038-0316 SLW 178 277 87.9 85
Show 04578-0219 LDS3629 266 167.2 86
Show 05036-0259 BAG 41 232 0.8 90
Show 04582-0213 HJ 689 277 20.9 92
Show 04564-0510 HDS 641 Aa,Ab 65 0.4 92
Show 04564-0510 SHJ 48 AB 76 66.1 92
Show 04564-0510 GMC 11 AC 331 127.1 92
Show 04544-0233 TVB 80 321 20.7 94
Show 04542-0452 SLW 174 140 129.0 94
Show 05041-0425 GWP 641 233 32.6 95
Show 05040-0251 STF 639 AB 81 5.5 99
Show 05007-0204 VIG 7 AB 309 6.5 106
Show 05007-0204 VIG 7 AC 99 8.0 106
Show 05007-0204 VIG 7 AD 329 9.2 106
Show 05007-0204 VIG 7 AE 29 9.7 106
Show 05007-0204 VIG 7 AF 174 11.4 106
Show 05007-0204 VIG 7 AG 73 13.6 106
Show 05037-0232 J 307 A,BC 320 53.5 107
Show 05037-0232 J 307 BC 197 0.3 107
Show 04516-0258 UC 1224 178 12.6 113
Show 04592-0151 UC 1251 87 14.4 114
Show 05036-0509 HJ 31 AB 73 13.9 116
Show 05036-0509 SIN 127 AC 148 25.3 116
Show 04563-0152 A 115 250 1.2 117

 
 
WDS 04584-0344 : COMPONENTS
 
 
  A
B pa=178.3°
sep=0.70"
 
 
04584-0344 A
 
 
Componente originario normalizzato AB Name HD 31768 Coord arcsec 2000 045826.15-034358.8 Mag 7.12
Spectral class F5 (yellow-white) PmRA 78.00 PmDE 48.0 SAO 131645
HIP 23116 Tycho2 4741-01620-1 HD 31768 GC 6067
BD BD-03 953
Tycho2
Tycho2 4741-01620-1 Pflag RAmdeg 74.60915521 DEmdeg -3.73290540
PmRA 71.2 PmDE 41.5 E RAmdeg 4 E DEmdeg 5
E pmRA 1.2 E pmDE 1.3 EpRAm 1991.40 EpDEm 1991.09
Num 13 Q RAmdeg 1.2 Q DEmdeg 1.2 Q pmRA 1.2
Q pmDE 1.2 BTmag 7.559 E BTmag 0.016 VTmag 7.028
E VTmag 0.010 Prox 999 TYC T HIP 23116
CCDM AB RAdeg 74.60899111 DEdeg -3.73300306 EpRA 1990 1.72
EpDE 1990 1.50 E RAdeg 4.2 E DEdeg 4.9 Posflg P
Corr 0.0
SAO
SAO 131645 DelFlag RA1950 PmRA1950 0.0044
DE1950 PmDE1950 0.004 Vmag 7 SpType F5
Double code Source 70 CatNum 6067 DM BD-03 953
DMcomp BDsup HD 31768 M HD 0
GC 6067 RA1950rad 1.2912873 DE1950rad -0.06648445 PmRA2000 0.0047
PmDE2000 0.003
Hipparcos
Catalog H HIP 23116 Proxy H RAhms 04 58 26.15
DEdms -03 43 58.8 Vmag 6.97 VarFlag R Vmag G
RAdeg 74.609 DEdeg -3.733 AstroRef A Plx 20.13
CCDM 04584-0344 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 103 Rho 0.554 HD 31768 BD BD-03 953
CD CP Dm number -03 953 VIred 0.59
SpType F5 R SpType Coord arcsec 2000 045826.15-034358.8
Hipparcos 2
HIP 23116 Sn 15 So 3 Nc 2
RArad 1.3021722787 DErad -0.0651532063 Plx 19.67 PmRA 76.29
PmDE 48.59 E RArad 0.59 E DErad 0.49 E Plx 0.73
E pmRA 0.77 E pmDE 0.62 Hpmag 7.0698 E Hpmag 0.0011
SHp 0.007 VA 0 BV 0.516 E BV 0.007
VI 0.59
CCDM
Ccdm 04584-0344 RComp Comp A Note1
Note2 Discov num DRAs 2.20 DDEs 1.6
R dRAs 82 Year Theta Rho
Obs 2 Vmag 7.1 Sp F5 PmNote *
PmRA 78 PmDE 48 Dm number -03 953 Cat1 BD
Name2 131645 Cat2 SAO HD 31768 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 23116
 
 
04584-0344 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 045826.15-034359.5 Mag 10.4 Calc delta mag 3.28
Calc coord yes
CCDM
Ccdm 04584-0344 RComp Comp B Note1
Note2 Discov num HDS DRAs 2.24 DDEs 1.5
R dRAs 82 Year 1991 Theta 103 Rho 0.6
Obs 1 Vmag 10.4 Sp PmNote *
PmRA 78 PmDE 48 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 23116