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Doubles in session


Current system
08316+3458
HU 716
HD 71974


Nearby doubles
8' : 08320+3504
CVR1151

17' : 08303+3456
SKF 656

24' : 08299+3510
SKF 655

26' : 08318+3524
ES 2161

28' : 08311+3431
HU 627

40' : 08286+3502
WOR 19

41' : 08283+3504
HU 715

44' : 08281+3505
SKF 644

54' : 08356+3517
LDS3799

54' : 08355+3436
AG 153

58' : 08360+3441
SKF 688

62' : 08354+3419
TDS5956

71' : 08281+3554
HDS1208

72' : 08334+3348
MLB 838

73' : 08262+3528
COU1891

74' : 08335+3346
MLB 839

74' : 08347+3601
SKF 685

75' : 08366+3541
SKF 693

76' : 08255+3452
LDS3788

78' : 08350+3353
TDS 478

80' : 08372+3420
ES 2346

88' : 08363+3352
COU1892AB

88' : 08368+3557
ES 2104

90' : 08283+3338
SEI 500

91' : 08386+3429
HJ 453

92' : 08245+3435
ES 2280



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.

08316+3458 HU 716 (HD 71974)

 
 
08h 31m 35.03s +34° 57' 58.5" P.A. 42.00 sep 0.3 mag 7.58,9.02 Sp G5 dist. 28.22 pc (92.05 l.y.)
 
 
Coord 2000 08316+3458 Discov num HU  716 Comp Coord arcsec 2000 08 31 35.03 +34 57 58.5
Date first 1904 Date last 2009 Obs 61
Pa first 105 Pa last 42.1 P.A. Now (θ) 121.9°
Sep first 0.4 Sep last 0.27 Sep. Now (ρ) 0.482"
Mag pri 7.58 Mag sec 9.02 delta mag (ΔM) 1.44 Spectral class G5 (yellow)
Pri motion ra -006 Sec motion ra -006
Pri motion dec +017 Sec motion dec +017
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 71974 Constellation Lynx SAO 60870 HIP 41820
Tycho2 2486-00303-1 Gaia DR2 903616971110812544 HD 71974 GC 11649
ADS 6851 BD BD+35 1834 Distance 28.22 Distance ly 92.05
 
 
ORBITAL ELEMENTS
 
 
Period (P)31.3y Periastron (T)1984y Semi-major axis (a)0.41a
Eccentricity (e)0.71 Inclination (i)120° Longitude of periastron (ω)243°
Node (Ω)143° Notesn ReferenceSod1999
Equinox2000 Last observation Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 97.3 0.440
2001 93.7 0.422
2002 89.7 0.403
2003 85.3 0.383
2004 80.3 0.361
2005 74.8 0.339
2006 68.4 0.317
2007 61.2 0.296
2008 52.9 0.276
2009 43.4 0.259
2010 32.5 0.244
2011 20.5 0.232
2012 7.3 0.222
2013 352.7 0.209
2014 335.3 0.183
2015 303.7 0.108
2016 182.8 0.099
2017 152.4 0.219
2018 142.4 0.306
2019 136.4 0.367
2020 131.9 0.411
2021 128.2 0.443
2022 124.9 0.466
2023 121.9 0.482
2024 119.0 0.491
2025 116.2 0.495
2026 113.4 0.495
2027 110.6 0.491
2028 107.8 0.484
2029 104.8 0.473
2030 101.7 0.460


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


 
  


wds08316%2B3458a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 08316+3458 HU 716 (HD 71974) : NOTES
 
 
discov_num notes refcode
HU 716 Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
masses of 1.58 +/- 0.23, 1.77, and 0.95 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
Sod1999 orb - Soderhjelm, S. 1999A&A...341..121S
Sod1999 A&A 341, 121, 1999
 
 
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
08316+3458 HU 716 1991 53 119 0.4 7.58 9.02 G5 NOD 083135.03+345758.5
08316+3458 HU 716 2007 54 57 0.3 7.58 9.02 G5 NOD 083135.03+345758.5
08316+3458 HU 716 2009 58 42 0.3 7.58 9.02 G5 NOD 083135.03+345758.5

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

 
 
WDS 08316+3458 HU 716 (HD 71974) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 08316+3458 HU 716 (HD 71974) : MEASURES
 
 
No records found.

 
 
WDS 08316+3458 (HD 71974) : VIRTUAL EYEPIECE
 
 

08316+3458 HU 716A mag 7.58 Sp G5 08316+3458 HU 716B sep 0.2 P.A. 36.50 mag 9.02 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 08316+3458 (HD 71974) : ALADIN DSS IMAGE @ 08h 31m 35.03s +34° 57' 58.5"
 
 
 
 
WDS 08316+3458 HU 716 (HD 71974) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

08316+3458 HU 716 distance=0' 08320+3504 CVR1151 distance=8' 08303+3456 SKF 656 distance=17' 08299+3510 SKF 655 distance=24' 08318+3524 ES 2161 distance=26' 08311+3431 HU 627 distance=28' 08286+3502 WOR 19 distance=40' 08283+3504 HU 715 distance=41' 08281+3505 SKF 644 distance=44' 08356+3517 LDS3799 distance=54' 08355+3436 AG 153 distance=54' 08360+3441 SKF 688 distance=58' 08354+3419 TDS5956 distance=62' 08281+3554 HDS1208 distance=71' 08334+3348 MLB 838 distance=72' 08262+3528 COU1891 distance=73' 08335+3346 MLB 839 distance=74' 08347+3601 SKF 685 distance=74' 08366+3541 SKF 693 distance=75' 08255+3452 LDS3788 distance=76' 08350+3353 TDS 478 distance=78' 08372+3420 ES 2346 distance=80' 08363+3352 COU1892AB distance=88' 08363+3352 GII 163Aa,Ab distance=88' 08368+3557 ES 2104 distance=88' 08283+3338 SEI 500 distance=90' 08386+3429 HJ 453 distance=91' 08245+3435 ES 2280 distance=92' 08332+3326 STF1240AB distance=95' 08332+3326 STF1240AC distance=95' 08281+3332 STT 193 distance=97' 08262+3608 ES 2160 distance=97' 08395+3454 TDS 483 distance=98' 08320+3319 SKF 667 distance=99' 08245+3409 ES 2345AB distance=101' 08245+3409 SIN 38AC distance=101' 08245+3409 SIN 38AD distance=101' 08285+3634 SKF 648 distance=104' 08263+3335 SEI 496 distance=106' 08284+3316 SKF 647 distance=109' 08394+3408 TDS6011 distance=109' 08319+3309 STF1238 distance=110' 08407+3508 HJ 793 distance=112' 08407+3449 HDS1249 distance=113' 08240+3352 SLW 249 distance=116' 08314+3655 SLW 259 distance=117' 08309+3259 CBL 256 distance=119' 08414+3508 UC 1699 distance=122' 08406+3550 TDS6026 distance=123' 08278+3304 SEI 498 distance=124' 08221+3418 KPP1856 distance=124' 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 08316+3458 HU 716 42 0.3
Show 08320+3504 CVR1151 11 4.7 8
Show 08303+3456 SKF 656 312 2.0 17
Show 08299+3510 SKF 655 180 1.0 24
Show 08318+3524 ES 2161 30 1.9 26
Show 08311+3431 HU 627 274 1.1 28
Show 08286+3502 WOR 19 349 0.5 40
Show 08283+3504 HU 715 189 2.6 41
Show 08281+3505 SKF 644 25 1.7 44
Show 08356+3517 LDS3799 235 11.9 54
Show 08355+3436 AG 153 90 3.0 54
Show 08360+3441 SKF 688 65 1.2 58
Show 08354+3419 TDS5956 94 0.5 62
Show 08281+3554 HDS1208 205 0.2 71
Show 08334+3348 MLB 838 18 4.8 72
Show 08262+3528 COU1891 160 0.8 73
Show 08335+3346 MLB 839 282 11.1 74
Show 08347+3601 SKF 685 249 1.5 74
Show 08366+3541 SKF 693 64 1.0 75
Show 08255+3452 LDS3788 311 211.9 76
Show 08350+3353 TDS 478 122 1.5 78
Show 08372+3420 ES 2346 199 2.0 80
Show 08363+3352 COU1892 AB 61 0.7 88
Show 08363+3352 GII 163 Aa,Ab 169 0.1 88
Show 08368+3557 ES 2104 166 3.1 88
Show 08283+3338 SEI 500 173 0.6 90
Show 08386+3429 HJ 453 103 19.3 91
Show 08245+3435 ES 2280 267 4.1 92
Show 08332+3326 STF1240 AB 80 28.8 95
Show 08332+3326 STF1240 AC 242 51.3 95
Show 08281+3332 STT 193 298 13.7 97
Show 08262+3608 ES 2160 343 3.5 97
Show 08395+3454 TDS 483 209 3.2 98
Show 08320+3319 SKF 667 242 1.6 99
Show 08245+3409 ES 2345 AB 213 5.9 101
Show 08245+3409 SIN 38 AC 234 48.7 101
Show 08245+3409 SIN 38 AD 302 98.8 101
Show 08285+3634 SKF 648 235 6.3 104
Show 08263+3335 SEI 496 138 4.2 106
Show 08284+3316 SKF 647 158 2.2 109
Show 08394+3408 TDS6011 297 0.4 109
Show 08319+3309 STF1238 321 29.4 110
Show 08407+3508 HJ 793 252 11.1 112
Show 08407+3449 HDS1249 246 1.0 113
Show 08240+3352 SLW 249 13 14.0 116
Show 08314+3655 SLW 259 179 24.6 117
Show 08309+3259 CBL 256 158 65.0 119
Show 08414+3508 UC 1699 298 15.4 122
Show 08406+3550 TDS6026 137 0.7 123
Show 08278+3304 SEI 498 159 4.3 124
Show 08221+3418 KPP1856 64 14.4 124

 
 
WDS 08316+3458 : COMPONENTS
 
 
  A
B pa=36.5°
sep=0.25"
 
 
08316+3458 A
 
 
Componente originario normalizzato AB Name HD 71974 Coord arcsec 2000 083135.03+345758.5 Mag 7.58
Spectral class G5 (yellow) PmRA -6.00 PmDE 17.0 SAO 60870
HIP 41820 Tycho2 2486-00303-1 HD 71974 GC 11649
BD BD+35 1834
Tycho2
Tycho2 2486-00303-1 Pflag RAmdeg 127.89597650 DEmdeg 34.96623284
PmRA -5.9 PmDE 16.9 E RAmdeg 4 E DEmdeg 5
E pmRA 1.4 E pmDE 1.5 EpRAm 1991.58 EpDEm 1991.30
Num 11 Q RAmdeg 1.8 Q DEmdeg 1.2 Q pmRA 1.9
Q pmDE 1.2 BTmag 8.161 E BTmag 0.016 VTmag 7.355
E VTmag 0.010 Prox 999 TYC T HIP 41820
CCDM AB RAdeg 127.89599278 DEdeg 34.96619361 EpRA 1990 1.80
EpDE 1990 1.60 E RAdeg 4.2 E DEdeg 4.9 Posflg P
Corr 0.3
SAO
SAO 60870 DelFlag RA1950 PmRA1950 -0.0021
DE1950 PmDE1950 0.01 Vmag 7.3 SpType G5
Double code Source 70 CatNum 11649 DM BD+35 1834
DMcomp BDsup HD 71974 M HD 0
GC 11649 RA1950rad 2.21831879 DE1950rad 0.61322829 PmRA2000 -0.0021
PmDE2000 0.014
Hipparcos
Catalog H HIP 41820 Proxy H RAhms 08 31 35.03
DEdms +34 57 58.3 Vmag 7.26 VarFlag R Vmag H
RAdeg 127.896 DEdeg 34.9662 AstroRef A Plx 34.83
CCDM 08316+3458 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 123 Rho 0.479 HD 71974 BD BD+35 1834
CD CP Dm number +35 1834 VIred 0.77
SpType G5 R SpType Coord arcsec 2000 083135.03+345758.3
Hipparcos 2
HIP 41820 Sn 15 So 3 Nc 2
RArad 2.2322058625 DErad 0.6102753153 Plx 35.43 PmRA -19.27
PmDE 10.22 E RArad 0.66 E DErad 0.42 E Plx 0.73
E pmRA 0.77 E pmDE 0.57 Hpmag 7.4024 E Hpmag 0.0013
SHp 0.011 VA 0 BV 0.73 E BV 0.008
VI 0.78
CCDM
Ccdm 08316+3458 RComp Comp A Note1
Note2 Discov num DRAs -1.05 DDEs -1.2
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.5 Sp G5 PmNote *
PmRA -25 PmDE 19 Dm number +35 1834 Cat1 BD
Name2 +35 839 Cat2 AGK2/3 HD 71974 M HD
ADS BDS A 6851 M ADS BDS N IDS IDS 08252N3518A
HIC 41820
 
 
08316+3458 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 083135.04+345758.7 Mag 9.02 PmRA -6.00
PmDE 17.0 Calc delta mag 1.44 Calc coord yes
CCDM
Ccdm 08316+3458 RComp Comp B Note1 *
Note2 Discov num HU 716 DRAs DDEs
R dRAs Year 1902 Theta Rho
Obs 24 Vmag 9.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 6851 M ADS BDS N IDS IDS 08252N3518B
HIC 41820