18121+4644 COU 2118 (HD 167260)

 
 
18h 12m 05.16s +46° 44' 11.9" P.A. 274.00 sep 0.1 mag 8.71,11.07 Sp G5 dist. 98.62 pc (321.7 l.y.)
 
 
Coord 2000 18121+4644 Discov num COU2118 Comp Coord arcsec 2000 18 12 05.16 +46 44 11.9
Date first 1982 Date last 2014 Obs 12
Pa first 42 Pa last 274 P.A. Now (θ) 274°
Sep first 0.2 Sep last 0.129 Sep. Now (ρ) 0.129"
Mag pri 8.71 Mag sec 11.07 delta mag (ΔM) 2.36 Spectral class G5 (yellow)
Pri motion ra -057 Sec motion ra
Pri motion dec -058 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 167260 Constellation Hercules SAO 47298 HIP 89186
Tycho2 3525-02233-1 Gaia DR2 2122323905675529728 HD 167260 BD BD+46 2441
Distance 98.62 Distance ly 321.7
 
 
ORBITAL ELEMENTS
 
 
Period (P)25.2y Periastron (T)1994.61y Semi-major axis (a)0.143a
Eccentricity (e)0.55 Inclination (i)37.5° Longitude of periastron (ω)73°
Node (Ω)150° Notes ReferenceCou1999b
Equinox Last observation Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 354.3 0.158
2001 1.5 0.168
2002 8.1 0.175
2003 14.3 0.179
2004 20.2 0.182
2005 26.0 0.183
2006 31.8 0.182
2007 37.7 0.181
2008 43.7 0.178
2009 49.9 0.174
2010 56.5 0.170
2011 63.4 0.164
2012 70.9 0.158
2013 79.0 0.151
2014 87.9 0.143
2015 98.0 0.134
2016 109.8 0.123
2017 124.0 0.110
2018 143.0 0.092
2019 173.4 0.068
2020 232.6 0.052
2021 290.5 0.071
2022 317.7 0.100
2023 333.2 0.124
2024 344.0 0.142
2025 352.7 0.156
2026 0.1 0.166
2027 6.8 0.174
2028 13.1 0.178
2029 19.0 0.181
2030 24.9 0.183


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


 
  


wds18121%2B4644a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 18121+4644 COU 2118 (HD 167260) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Cou1999b orb - Couteau, P. .
Cou1999b Cat. de 2700 Etoiles Doubles "COU", 1999 Obs. de la Cote d'Azur, 3rd ed.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18121+4644 COU2118 1996 11 23 0.1 11.07 8.71 G5 O 181205.16+464411.9
18121+4644 COU2118 2014 12 274 0.1 8.71 11.07 G5 O 181205.16+464411.9

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

 
 
WDS 18121+4644 COU 2118 (HD 167260) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18121+4644 COU 2118 (HD 167260) : MEASURES
 
 
No records found.

 
 
WDS 18121+4644 (HD 167260) : VIRTUAL EYEPIECE
 
 

18121+4644 COU2118A mag 8.71 Sp G5 18121+4644 COU2118B sep 0.1 P.A. 275.80 mag 11.07 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 18121+4644 (HD 167260) : ALADIN DSS IMAGE @ 18h 12m 05.16s +46° 44' 11.9"
 
 
 
 
WDS 18121+4644 COU 2118 (HD 167260) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18121+4644 COU2118 distance=0' 18119+4733 COU2117 distance=49' 18069+4647 ES 1157BC distance=54' 18069+4647 ES 1157AB distance=54' 18069+4647 ES 1157AD distance=54' 18093+4555 WFC 205 distance=57' 18145+4737 COU2119 distance=59' 18161+4729 COU2120 distance=62' 18075+4552 KUI 85 (Nova Hercules) distance=71' 18117+4758 COU2116 distance=74' 18047+4650 COU2115AB distance=77' 18047+4650 GII 258Aa,Ab distance=77' 18197+4654 TDS 916 distance=79' 18179+4743 TDT 780 distance=84' 18193+4724 ES 1158 distance=84' 18103+4521 LDS4777 distance=85' 18192+4754 UC 3553 distance=101' 18044+4749 KPP 409 distance=102' 18099+4824 STF2293AB distance=103' 18146+4827 SHN 228 distance=107' 18024+4604 BVD 260 distance=109' 18095+4829 TDT 713 distance=109' 18049+4808 STT 343 distance=111' 18182+4509 HDS2588 distance=115' 18188+4510 WOL 2 distance=118' 18224+4545 A 700 distance=123' 18004+4611 J 756 distance=125' 18003+4548 ES 1260 distance=135' 18253+4653 BU 134 distance=136' 18197+4453 ES 2665AB distance=137' 18197+4453 WAL 90AC distance=137' 18031+4828 STF2277BC distance=138' 18031+4828 STF2277AB distance=138' 18031+4828 STF2277AC distance=138' 18015+4517 STF2270 distance=141' 18169+4856 LDS5174AB distance=141' 18221+4821 HU 582 distance=141' 18064+4437 COU1926 distance=141' 18242+4540 UC 240 distance=142' 18011+4521 STF3129 distance=142' 18022+4506 CBL 73 distance=143' 18072+4430 BRT1914 distance=145' 17578+4635 BDK 9 distance=147' 18264+4649 STT 352 distance=148' 18162+4423 ES 1421 distance=148' 18156+4417 ES 1420AB distance=152' 18156+4417 ES 1420AC distance=152' 18030+4442 ES 1416 distance=154' 17590+4811 COU1925 distance=158' 18084+4407 HDS2554 distance=163' 18083+4406 KPP4086CD distance=163' 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 18121+4644 COU2118 274 0.1
Show 18119+4733 COU2117 119 0.4 49
Show 18069+4647 ES 1157 BC 11 2.8 54
Show 18069+4647 ES 1157 AB 178 29.3 54
Show 18069+4647 ES 1157 AD 236 49.7 54
Show 18093+4555 WFC 205 50 6.5 57
Show 18145+4737 COU2119 275 1.3 59
Show 18161+4729 COU2120 107 3.2 62
Show Nova Hercules 18075+4552 KUI 85 130 3.1 71
Show 18117+4758 COU2116 302 1.4 74
Show 18047+4650 COU2115 AB 42 0.3 77
Show 18047+4650 GII 258 Aa,Ab 114 0.1 77
Show 18197+4654 TDS 916 201 0.9 79
Show 18179+4743 TDT 780 165 0.5 84
Show 18193+4724 ES 1158 197 4.9 84
Show 18103+4521 LDS4777 60 56.3 85
Show 18192+4754 UC 3553 99 15.8 101
Show 18044+4749 KPP 409 91 4.9 102
Show 18099+4824 STF2293 AB 83 12.8 103
Show 18146+4827 SHN 228 -1 0.1 107
Show 18024+4604 BVD 260 65 21.4 109
Show 18095+4829 TDT 713 332 0.5 109
Show 18049+4808 STT 343 79 3.3 111
Show 18182+4509 HDS2588 31 0.4 115
Show 18188+4510 WOL 2 183 1.3 118
Show 18224+4545 A 700 128 0.6 123
Show 18004+4611 J 756 181 3.5 125
Show 18003+4548 ES 1260 203 3.0 135
Show 18253+4653 BU 134 125 1.1 136
Show 18197+4453 ES 2665 AB 21 9.9 137
Show 18197+4453 WAL 90 AC 334 77.1 137
Show 18031+4828 STF2277 BC 300 126.4 138
Show 18031+4828 STF2277 AB 128 26.8 138
Show 18031+4828 STF2277 AC 297 99.7 138
Show 18015+4517 STF2270 212 6.3 141
Show 18169+4856 LDS5174 AB 155 109.7 141
Show 18221+4821 HU 582 191 2.3 141
Show 18064+4437 COU1926 124 0.3 141
Show 18242+4540 UC 240 314 63.6 142
Show 18011+4521 STF3129 168 30.8 142
Show 18022+4506 CBL 73 293 31.7 143
Show 18072+4430 BRT1914 160 4.1 145
Show 17578+4635 BDK 9 131 197.0 147
Show 18264+4649 STT 352 221 24.2 148
Show 18162+4423 ES 1421 345 11.8 148
Show 18156+4417 ES 1420 AB 66 8.3 152
Show 18156+4417 ES 1420 AC 9 14.6 152
Show 18030+4442 ES 1416 73 1.5 154
Show 17590+4811 COU1925 38 0.2 158
Show 18084+4407 HDS2554 205 0.1 163
Show 18083+4406 KPP4086 CD 236 2.9 163

 
 
WDS 18121+4644 : COMPONENTS
 
 
  A
B pa=275.8°
sep=0.09"
 
 
18121+4644 A
 
 
Componente originario normalizzato AB Name HD 167260 Coord arcsec 2000 181205.16+464411.9 Mag 8.71
Spectral class G5 (yellow) PmRA -57.00 PmDE -58.0 SAO 47298
HIP 89186 Tycho2 3525-02233-1 HD 167260 BD BD+46 2441
Tycho2
Tycho2 3525-02233-1 Pflag RAmdeg 273.02129800 DEmdeg 46.73651329
PmRA -57.5 PmDE -54.5 E RAmdeg 8 E DEmdeg 8
E pmRA 1.2 E pmDE 1.2 EpRAm 1990.74 EpDEm 1990.75
Num 8 Q RAmdeg 1.1 Q DEmdeg 1.4 Q pmRA 1.1
Q pmDE 1.4 BTmag 9.135 E BTmag 0.018 VTmag 8.532
E VTmag 0.013 Prox 999 TYC T HIP 89186
CCDM AB RAdeg 273.02149472 DEdeg 46.73664222 EpRA 1990 1.51
EpDE 1990 1.49 E RAdeg 7.5 E DEdeg 7.5 Posflg P
Corr 0.0
SAO
SAO 47298 DelFlag RA1950 PmRA1950 -0.0075
DE1950 PmDE1950 -0.05 Vmag 8.3 SpType G5
Double code Source 3 CatNum 1332 DM BD+46 2441
DMcomp BDsup HD 167260 M HD 0
GC RA1950rad 4.75911054 DE1950rad 0.81547761 PmRA2000 -0.0069
PmDE2000 -0.05
Hipparcos
Catalog H HIP 89186 Proxy H RAhms 18 12 05.16
DEdms +46 44 11.9 Vmag 8.48 VarFlag R Vmag H
RAdeg 273.021 DEdeg 46.7366 AstroRef * Plx 9.74
CCDM 18121+4644 N CCDM M Nsys 1 Ncomp 2
MultFlag C Source S Qual B M HIP BA
Theta 222 Rho 0.199 HD 167260 BD BD+46 2441
CD CP Dm number +46 2441 VIred 0.65
SpType G5 R SpType Coord arcsec 2000 181205.16+464411.9
Hipparcos 2
HIP 89186 Sn 55 So 3 Nc 2
RArad 4.7651240719 DErad 0.8157083465 Plx 10.14 PmRA -60.76
PmDE -57.49 E RArad 0.6 E DErad 0.57 E Plx 0.64
E pmRA 0.71 E pmDE 0.68 Hpmag 8.5965 E Hpmag 0.0013
SHp 0.012 VA 0 BV 0.559 E BV 0.016
VI 0.63
CCDM
Ccdm 18121+4644 RComp Comp A Note1
Note2 Discov num DRAs -0.89 DDEs 11.0
R dRAs 81 Year Theta Rho
Obs 2 Vmag 8.5 Sp G5 PmNote @
PmRA -57 PmDE -59 Dm number +46 2441 Cat1 BD
Name2 +46 1332 Cat2 AGK2/3 HD 167260 M HD
ADS BDS M ADS BDS N IDS IDS 18094N4644A
HIC 89186
 
 
18121+4644 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 181205.15+464411.9 Mag 11.07 Calc delta mag 2.36
Calc coord yes
CCDM
Ccdm 18121+4644 RComp Comp B Note1
Note2 Discov num COU2118 DRAs DDEs
R dRAs Year 1988 Theta 50 Rho 0.1
Obs 3 Vmag 8.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 18094N4644B
HIC 89186