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Current system
16384+3514
COU 985


Nearby doubles
31' : 16408+3524
KPP4011

38' : 16413+3505
KPP3414

39' : 16355+3501
BWL 44AB

45' : 16368+3434
TDT 4

50' : 16350+3447
RAO 350

51' : 16353+3441
KPP4008

60' : 16337+3500
HJ 586

66' : 16352+3606
TDS9980

66' : 16434+3539
COU 986

67' : 16332+3535
POP 89

72' : 16403+3406
UC 3204

82' : 16391+3353
CVR1670

82' : 16343+3409
TDS9976

83' : 16381+3636
SKF1762

84' : 16448+3544
STF2097AB

85' : 16371+3351
POP 2AB

88' : 16364+3349
STF2069

91' : 16310+3514
HDS2332AB

94' : 16458+3538
STF2101AB

94' : 16308+3527
ALI 135

103' : 16450+3412
UC 3222

103' : 16301+3459
KPP4002

108' : 16354+3655
BU 952AB

114' : 16450+3355
POP 5

114' : 16392+3707
SLW1191

119' : 16290+3543
CVR1666



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

16384+3514 COU 985

 
 
16h 38m 24.13s +35° 13' 34.5" P.A. 81.00 sep 0.3 mag 9.40,9.70 Sp K2 dist. 87.95 pc (286.89 l.y.)
 
 
Coord 2000 16384+3514 Discov num COU 985 Comp Coord arcsec 2000 16 38 24.13 +35 13 34.5
Date first 1973 Date last 2016 Obs 36
Pa first 48 Pa last 81.3 P.A. Now (θ) 271.5°
Sep first 0.2 Sep last 0.334 Sep. Now (ρ) 0.334"
Mag pri 9.40 Mag sec 9.70 delta mag (ΔM) 0.3 Spectral class K2 (yellow-orange)
Pri motion ra +052 Sec motion ra
Pri motion dec -089 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Hercules HIP 81470 Tycho2 2588-00318-1 Gaia DR2 1327584596036545536
BD BD+35 2844 Distance 87.95 Distance ly 286.89
 
 
ORBITAL ELEMENTS
 
 
Period (P)81.97y Periastron (T)1986.18y Semi-major axis (a)0.282a
Eccentricity (e)0.27 Inclination (i)59.1° Longitude of periastron (ω)34.5°
Node (Ω)78.9° Notesn ReferenceDoc2019h
Equinox2000 Last observation2012 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 223.5 0.189
2001 228.0 0.204
2002 231.9 0.219
2003 235.2 0.233
2004 238.2 0.247
2005 240.9 0.260
2006 243.4 0.272
2007 245.6 0.283
2008 247.7 0.293
2009 249.6 0.303
2010 251.5 0.311
2011 253.2 0.318
2012 254.9 0.324
2013 256.5 0.330
2014 258.1 0.334
2015 259.6 0.338
2016 261.1 0.340
2017 262.6 0.342
2018 264.0 0.343
2019 265.5 0.343
2020 267.0 0.342
2021 268.5 0.340
2022 270.0 0.337
2023 271.5 0.334
2024 273.1 0.330
2025 274.7 0.325
2026 276.3 0.320
2027 278.1 0.314
2028 279.8 0.307
2029 281.7 0.300
2030 283.7 0.292


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


 
  


wds16384%2B3514c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 16384+3514 COU 985 : NOTES
 
 
discov_num notes refcode
COU 985 A premature orbit has been computed.
Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
masses of 5.46 +/- 4.84, 2.16, and 0.79 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
Doc2019h orb - Docobo, J.A. & Ling, J.F. 2019IAUDS.199S...1D
Doc2019h Inf. Circ. 199, 1, 2019
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
 
 
DISCOVERER
 
 
idgroup discov author
1 COU Couteau, P.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16384+3514 COU 985 2001 19 50 0.2 9.40 9.70 K2 NOD 163824.13+351334.5
16384+3514 COU 985 2006 20 65 0.3 9.40 9.70 K2 NOD 163824.13+351334.5
16384+3514 COU 985 2009 22 69 0.3 9.40 9.70 K2 NOD 163824.13+351334.5
16384+3514 COU 985 2010 28 70 0.3 9.40 9.70 K2 NO 163824.13+351334.5
16384+3514 COU 985 2016 29 81 0.3 9.40 9.70 K2 NO 163824.13+351334.5

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

 
 
WDS 16384+3514 COU 985 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 16384+3514 COU 985 : MEASURES
 
 
No records found.

 
 
WDS 16384+3514 : VIRTUAL EYEPIECE
 
 

16384+3514 COU 985A mag 9.4 Sp K2 16384+3514 COU 985B sep 0.3 P.A. 79.40 mag 9.7 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 16384+3514 : ALADIN DSS IMAGE @ 16h 38m 24.13s +35° 13' 34.5"
 
 
 
 
WDS 16384+3514 COU 985 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

16384+3514 COU 985 distance=0' 16408+3524 KPP4011 distance=31' 16413+3505 KPP3414 distance=38' 16355+3501 BWL 44AB distance=39' 16355+3501 BWL 44AB,C distance=39' 16368+3434 TDT 4 distance=45' 16350+3447 RAO 350 distance=50' 16353+3441 KPP4008 distance=51' 16337+3500 HJ 586 distance=60' 16352+3606 TDS9980 distance=66' 16434+3539 COU 986 distance=66' 16332+3535 POP 89 distance=67' 16403+3406 UC 3204 distance=72' 16391+3353 CVR1670 distance=82' 16343+3409 TDS9976 distance=82' 16381+3636 SKF1762 distance=83' 16448+3544 STF2097AB distance=84' 16448+3544 STF2097AC distance=84' 16448+3544 POP1222AD distance=84' 16371+3351 POP 2AB distance=85' 16371+3351 LNA 9Aa,Ab distance=85' 16364+3349 STF2069 distance=88' 16310+3514 HDS2332AB distance=91' 16310+3514 RBR 47AC distance=91' 16458+3538 STF2101AB distance=94' 16458+3538 KPR 3AC distance=94' 16458+3538 TOK 606AD distance=94' 16308+3527 ALI 135 distance=94' 16450+3412 UC 3222 distance=103' 16301+3459 KPP4002 distance=103' 16354+3655 BU 952BC distance=108' 16354+3655 BU 952AB distance=108' 16354+3655 BU 952AD distance=108' 16450+3355 POP 5 distance=114' 16392+3707 SLW1191 distance=114' 16290+3543 CVR1666 distance=119' 16377+3712 NSN 58 distance=119' 16328+3650 LDS4677 distance=120' 16455+3350 SKF 262 distance=122' 16351+3318 JOD 10 distance=123' 16431+3321 GRV 935 distance=127' 16320+3334 LDS4676 distance=128' 16454+3651 SKF 263 distance=130' 16489+3520 CRB 116 distance=130' 16301+3353 HU 1173 distance=131' 16487+3556 STF2104AB distance=133' 16487+3556 WAL 74AC distance=133' 16352+3721 PAR 2 distance=133' 16288+3413 RAO 669 distance=133' 16315+3331 BU 816 distance=134' 16363+3727 GRV1222 distance=137' 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 16384+3514 COU 985 81 0.3
Show 16408+3524 KPP4011 58 1.5 31
Show 16413+3505 KPP3414 219 22.0 38
Show 16355+3501 BWL 44 AB 26 0.1 39
Show 16355+3501 BWL 44 AB,C 207 2.2 39
Show 16368+3434 TDT 4 190 2.5 45
Show 16350+3447 RAO 350 220 1.2 50
Show 16353+3441 KPP4008 144 2.3 51
Show 16337+3500 HJ 586 236 9.5 60
Show 16352+3606 TDS9980 359 0.7 66
Show 16434+3539 COU 986 221 1.3 66
Show 16332+3535 POP 89 170 3.2 67
Show 16403+3406 UC 3204 254 17.1 72
Show 16391+3353 CVR1670 235 3.5 82
Show 16343+3409 TDS9976 71 0.8 82
Show 16381+3636 SKF1762 267 1.3 83
Show 16448+3544 STF2097 AB 80 1.9 84
Show 16448+3544 STF2097 AC 183 45.0 84
Show 16448+3544 POP1222 AD 7 158.5 84
Show 16371+3351 POP 2 AB 135 4.7 85
Show 16371+3351 LNA 9 Aa,Ab 171 0.8 85
Show 16364+3349 STF2069 82 35.7 88
Show 16310+3514 HDS2332 AB 214 0.2 91
Show 16310+3514 RBR 47 AC 42 0.9 91
Show 16458+3538 STF2101 AB 47 4.1 94
Show 16458+3538 KPR 3 AC 88 235.0 94
Show 16458+3538 TOK 606 AD 122 978.0 94
Show 16308+3527 ALI 135 349 5.2 94
Show 16450+3412 UC 3222 33 44.6 103
Show 16301+3459 KPP4002 292 1.8 103
Show 16354+3655 BU 952 BC 194 5.2 108
Show 16354+3655 BU 952 AB 151 3.2 108
Show 16354+3655 BU 952 AD 265 91.9 108
Show 16450+3355 POP 5 140 0.7 114
Show 16392+3707 SLW1191 96 155.2 114
Show 16290+3543 CVR1666 66 3.6 119
Show 16377+3712 NSN 58 239 23.4 119
Show 16328+3650 LDS4677 118 64.0 120
Show 16455+3350 SKF 262 146 8.2 122
Show 16351+3318 JOD 10 140 0.9 123
Show 16431+3321 GRV 935 293 10.5 127
Show 16320+3334 LDS4676 32 326.5 128
Show 16454+3651 SKF 263 13 5.8 130
Show 16489+3520 CRB 116 236 19.2 130
Show 16301+3353 HU 1173 66 0.2 131
Show 16487+3556 STF2104 AB 18 5.7 133
Show 16487+3556 WAL 74 AC 216 97.8 133
Show 16352+3721 PAR 2 337 6.5 133
Show 16288+3413 RAO 669 199 1.3 133
Show 16315+3331 BU 816 221 4.9 134
Show 16363+3727 GRV1222 343 21.2 137

 
 
WDS 16384+3514 : COMPONENTS
 
 
  A
B pa=79.4°
sep=0.27"
 
 
16384+3514 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 163824.13+351334.5 Mag 9.4 Spectral class K2 (yellow-orange)
PmRA 52.00 PmDE -89.0 HIP 81470 BD BD+35 2844
Hipparcos
Catalog H HIP 81470 Proxy RAhms 16 38 24.13
DEdms +35 13 34.5 Vmag 9.5 VarFlag R Vmag H
RAdeg 249.601 DEdeg 35.2262 AstroRef Plx 11.49
CCDM 16384+3514 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD BD BD+35 2844
CD CP Dm number +35 2844 VIred 1.33
SpType K2 R SpType Coord arcsec 2000 163824.13+351334.5
Hipparcos 2
HIP 81470 Sn 5 So 0 Nc 1
RArad 4.3563510261 DErad 0.6148140487 Plx 11.37 PmRA 58.1
PmDE -81.67 E RArad 0.86 E DErad 0.95 E Plx 1.19
E pmRA 0.95 E pmDE 1.22 Hpmag 9.6426 E Hpmag 0.0027
SHp 0.034 VA 0 BV 0.724 E BV 0.028
VI 0.78
CCDM
Ccdm 16384+3514 RComp Comp A Note1
Note2 Discov num DRAs 0.31 DDEs -24.2
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.4 Sp K2 PmNote *
PmRA 78 PmDE -58 Dm number +35 2844 Cat1 BD
Name2 +35 1428 Cat2 AGK2/3 HD M HD
ADS BDS M ADS BDS N IDS IDS 16347N3526A
HIC 81470
 
 
16384+3514 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 163824.15+351334.6 Mag 9.7 Tycho2 2588-00318-1
Calc delta mag 0.3 Calc coord yes
Tycho2
Tycho2 2588-00318-1 Pflag RAmdeg 249.60069253 DEmdeg 35.22605229
PmRA 56.2 PmDE -82.3 E RAmdeg 13 E DEmdeg 13
E pmRA 1.8 E pmDE 1.8 EpRAm 1990.06 EpDEm 1990.03
Num 9 Q RAmdeg 0.7 Q DEmdeg 1.0 Q pmRA 0.7
Q pmDE 1.0 BTmag 10.446 E BTmag 0.029 VTmag 9.634
E VTmag 0.021 Prox 999 TYC T HIP 81470
CCDM RAdeg 249.60053361 DEdeg 35.22624472 EpRA 1990 1.67
EpDE 1990 1.62 E RAdeg 13.8 E DEdeg 14.0 Posflg
Corr 0.0
CCDM
Ccdm 16384+3514 RComp Comp B Note1
Note2 Discov num COU 985 DRAs DDEs
R dRAs Year 1973 Theta 48 Rho 0.2
Obs 1 Vmag 9.7 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 16347N3526B
HIC 81470