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Current system
09290+1917
COU 936
HD 81899


Nearby doubles
18' : 09300+1928
OCC 48

49' : 09260+1854
COU 935

50' : 09269+1837
LDS3894

63' : 09320+2003
STF1364AB

66' : 09244+1912
KPP 191

68' : 09308+1815
TOK 887

72' : 09305+2026
A 130

81' : 09258+2023
OCC9032

83' : 09347+1858
CVR1230

85' : 09231+1909
GWP1166

94' : 09245+1808
A 2477

97' : 09241+1811
OCC 162

104' : 09268+2056
LDS3892

105' : 09357+1836
COU 385

105' : 09278+1734
HJ 464

105' : 09341+2034
UC 1810

108' : 09364+1856
COU 386AB

108' : 09218+1845
TOK 667

110' : 09215+1943
A 127

110' : 09368+1914
HJ 468

117' : 09286+1721
BPM 561

117' : 09255+2103
NSN 35

123' : 09292+2120
TDS6593

129' : 09311+2123
BRT2400

132' : 09266+1710
GWP1175

135' : 09319+2125
DBR 5



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.

09290+1917 COU 936 (HD 81899)

 
 
09h 29m 00.67s +19° 17' 18.6" P.A. 226.00 sep 1.0 mag 8.42,9.96 Sp F5 dist. 83.13 pc (271.17 l.y.)
 
 
Coord 2000 09290+1917 Discov num COU 936 Comp Coord arcsec 2000 09 29 00.67 +19 17 18.6
Date first 1973 Date last 2017 Obs 20
Pa first 239 Pa last 225.8 P.A. Now (θ) 225.8°
Sep first 0.5 Sep last 0.956 Sep. Now (ρ) 0.956"
Mag pri 8.42 Mag sec 9.96 delta mag (ΔM) 1.54 Spectral class F5 (yellow-white)
Pri motion ra +026 Sec motion ra +026
Pri motion dec +033 Sec motion dec +033
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 81899 Constellation Leo SAO 98596 HIP 46501
Tycho2 1406-01207-1 Gaia DR2 634098255638793600 HD 81899 BD BD+19 2218
Distance 83.13 Distance ly 271.17
 
 
ORBITAL ELEMENTS
 
 
Period (P)180.5y± 16.3 Periastron (T)1945.3y± 2.4 Semi-major axis (a)0.565a± 0.032
Eccentricity (e)0.738± 0.065 Inclination (i)108.6°± 5 Longitude of periastron (ω)8.4°± 7.7
Node (Ω)45°± 1.9 Notes ReferenceBAE2021
Equinox Last observation Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 227.8 0.864
2001 227.6 0.871
2002 227.4 0.878
2003 227.3 0.885
2004 227.1 0.891
2005 226.9 0.898
2006 226.8 0.904
2007 226.6 0.909
2008 226.4 0.915
2009 226.3 0.920
2010 226.1 0.925
2011 225.9 0.930
2012 225.8 0.934
2013 225.6 0.938
2014 225.5 0.942
2015 225.3 0.946
2016 225.2 0.950
2017 225.0 0.953
2018 224.9 0.956
2019 224.7 0.959
2020 224.6 0.961
2021 224.4 0.964
2022 224.3 0.966
2023 224.1 0.968
2024 224.0 0.969
2025 223.8 0.971
2026 223.7 0.972
2027 223.5 0.973
2028 223.4 0.974
2029 223.2 0.974
2030 223.1 0.975


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


 
  


wds09290%2B1917a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 09290+1917 COU 936 (HD 81899) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
BAE2021 orb j Baidin, A.E. & Krechet, V.G. 2021AstBu..76...84B
BAE2021 Astrophys. Bull. 76, 84, 2021
 
 
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
09290+1917 COU 936 2004 10 227 0.9 8.42 9.96 F5 D 092900.67+191718.6
09290+1917 COU 936 2010 12 226 0.9 8.42 9.96 F5 D 092900.67+191718.6
09290+1917 COU 936 2012 13 226 1.0 8.42 9.96 F5 092900.67+191718.6
09290+1917 COU 936 2017 14 226 1.0 8.42 9.96 F5 092900.67+191718.6

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

 
 
WDS 09290+1917 COU 936 (HD 81899) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 09290+1917 COU 936 (HD 81899) : MEASURES
 
 
No records found.

 
 
WDS 09290+1917 (HD 81899) : VIRTUAL EYEPIECE
 
 

09290+1917 COU 936A mag 8.42 Sp F5 09290+1917 COU 936B sep 0.9 P.A. 224.10 mag 9.96 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 09290+1917 (HD 81899) : ALADIN DSS IMAGE @ 09h 29m 00.67s +19° 17' 18.6"
 
 
 
 
WDS 09290+1917 COU 936 (HD 81899) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

09290+1917 COU 936 distance=1' 09300+1928 OCC 48 distance=18' 09260+1854 COU 935 distance=49' 09269+1837 LDS3894 distance=50' 09320+2003 STF1364AB distance=63' 09320+2003 HJ 466AC distance=63' 09244+1912 KPP 191 distance=66' 09308+1815 TOK 887 distance=68' 09305+2026 A 130 distance=72' 09258+2023 OCC9032 distance=81' 09347+1858 CVR1230 distance=83' 09231+1909 GWP1166 distance=85' 09245+1808 A 2477 distance=94' 09241+1811 OCC 162 distance=97' 09268+2056 LDS3892 distance=104' 09357+1836 COU 385 distance=105' 09278+1734 HJ 464 distance=105' 09341+2034 UC 1810 distance=105' 09364+1856 CHR 248Aa,Ab distance=108' 09364+1856 COU 386AB distance=108' 09218+1845 TOK 667 distance=108' 09215+1943 A 127 distance=110' 09368+1914 HJ 468 distance=110' 09286+1721 BPM 561 distance=117' 09255+2103 NSN 35 distance=117' 09292+2120 TDS6593 distance=123' 09311+2123 BRT2400 distance=129' 09266+1710 GWP1175 distance=132' 09319+2125 DBR 5 distance=135' 09324+2129 DBR 7 distance=140' 09273+2139 GRV 787 distance=144' 09356+1729 BPM 563 distance=144' 09198+1816 GWP1162 distance=145' 09186+1953 SKF 31 distance=153' 09389+2018 OCC 701AB distance=153' 09389+2018 DAM1681AB,C distance=153' 09191+1819 XMI 90 distance=153' 09181+1934 XMI 89 distance=156' 09183+1847 COU 384 distance=156' 09396+1823 COU 387 distance=161' 09322+2151 BU 909 distance=161' 09404+1936 KU 98 distance=163' 09346+1656 GWP1198 distance=163' 09318+1639 CVR1226 distance=164' 09192+2045 UC 1776 distance=164' 09188+1756 BRT2522 distance=166' 09173+1838 COU 383 distance=171' 09186+2049 HO 43 distance=173' 09180+1803 OCC 739 distance=173' 09349+2152 COU 282 distance=176' 09278+2212 SLW 358 distance=176' 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 09290+1917 COU 936 226 1.0 1
Show 09300+1928 OCC 48 -1 0.1 18
Show 09260+1854 COU 935 240 0.9 49
Show 09269+1837 LDS3894 54 45.7 50
Show 09320+2003 STF1364 AB 155 16.2 63
Show 09320+2003 HJ 466 AC 297 34.7 63
Show 09244+1912 KPP 191 144 4.9 66
Show 09308+1815 TOK 887 229 0.2 68
Show 09305+2026 A 130 280 1.0 72
Show 09258+2023 OCC9032 50 0.0 81
Show 09347+1858 CVR1230 57 3.6 83
Show 09231+1909 GWP1166 268 33.9 85
Show 09245+1808 A 2477 5 0.5 94
Show 09241+1811 OCC 162 -1 0.1 97
Show 09268+2056 LDS3892 311 24.6 104
Show 09357+1836 COU 385 153 0.7 105
Show 09278+1734 HJ 464 168 19.1 105
Show 09341+2034 UC 1810 236 24.5 105
Show 09364+1856 CHR 248 Aa,Ab 242 0.1 108
Show 09364+1856 COU 386 AB 231 0.8 108
Show 09218+1845 TOK 667 352 22.6 108
Show 09215+1943 A 127 32 1.5 110
Show 09368+1914 HJ 468 305 15.9 110
Show 09286+1721 BPM 561 351 40.5 117
Show 09255+2103 NSN 35 14 17.3 117
Show 09292+2120 TDS6593 165 0.7 123
Show 09311+2123 BRT2400 242 4.7 129
Show 09266+1710 GWP1175 241 94.5 132
Show 09319+2125 DBR 5 284 2.5 135
Show 09324+2129 DBR 7 103 3.7 140
Show 09273+2139 GRV 787 45 39.4 144
Show 09356+1729 BPM 563 122 111.6 144
Show 09198+1816 GWP1162 48 22.6 145
Show 09186+1953 SKF 31 252 2.3 153
Show 09389+2018 OCC 701 AB -1 0.1 153
Show 09389+2018 DAM1681 AB,C 123 10.0 153
Show 09191+1819 XMI 90 44 19.5 153
Show 09181+1934 XMI 89 163 15.7 156
Show 09183+1847 COU 384 56 0.2 156
Show 09396+1823 COU 387 257 0.6 161
Show 09322+2151 BU 909 90 6.2 161
Show 09404+1936 KU 98 341 56.7 163
Show 09346+1656 GWP1198 322 45.7 163
Show 09318+1639 CVR1226 313 4.1 164
Show 09192+2045 UC 1776 169 6.2 164
Show 09188+1756 BRT2522 32 5.1 166
Show 09173+1838 COU 383 45 0.7 171
Show 09186+2049 HO 43 97 0.6 173
Show 09180+1803 OCC 739 -1 0.1 173
Show 09349+2152 COU 282 301 1.2 176
Show 09278+2212 SLW 358 186 163.8 176

 
 
WDS 09290+1917 : COMPONENTS
 
 
  A
B pa=224.1°
sep=0.93"
 
 
09290+1917 A
 
 
Componente originario normalizzato AB Name HD 81899 Coord arcsec 2000 092900.67+191718.6 Mag 8.42
Spectral class F5 (yellow-white) PmRA 26.00 PmDE 33.0 SAO 98596
HIP 46501 Tycho2 1406-01207-1 HD 81899 BD BD+19 2218
Tycho2
Tycho2 1406-01207-1 Pflag RAmdeg 142.25278042 DEmdeg 19.28848263
PmRA 25.8 PmDE 33.2 E RAmdeg 6 E DEmdeg 7
E pmRA 0.8 E pmDE 0.8 EpRAm 1990.77 EpDEm 1990.24
Num 18 Q RAmdeg 1.2 Q DEmdeg 1.6 Q pmRA 1.1
Q pmDE 1.5 BTmag 8.797 E BTmag 0.018 VTmag 8.264
E VTmag 0.013 Prox 999 TYC T HIP 46501
CCDM AB RAdeg 142.25271806 DEdeg 19.28840500 EpRA 1990 1.73
EpDE 1990 1.58 E RAdeg 5.7 E DEdeg 7.2 Posflg P
Corr 0.1
SAO
SAO 98596 DelFlag RA1950 PmRA1950 0.0019
DE1950 PmDE1950 0.024 Vmag 8 SpType F5
Double code Source 28 CatNum 3824 DM BD+19 2218
DMcomp BDsup HD 81899 M HD 0
GC RA1950rad 2.47053549 DE1950rad 0.34046057 PmRA2000 0.0019
PmDE2000 0.029
Hipparcos
Catalog H HIP 46501 Proxy H RAhms 09 29 00.65
DEdms +19 17 18.3 Vmag 8.14 VarFlag R Vmag H
RAdeg 142.253 DEdeg 19.2884 AstroRef A Plx 11.99
CCDM 09290+1917 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 229 Rho 0.801 HD 81899 BD BD+19 2218
CD CP Dm number +19 2218 VIred 0.55
SpType F5 R SpType Coord arcsec 2000 092900.65+191718.3
Hipparcos 2
HIP 46501 Sn 15 So 3 Nc 2
RArad 2.4827783646 DErad 0.336646323 Plx 12.03 PmRA 23.31
PmDE 34.88 E RArad 1.04 E DErad 0.65 E Plx 1.2
E pmRA 1.16 E pmDE 0.67 Hpmag 8.2495 E Hpmag 0.0011
SHp 0.009 VA 0 BV 0.492 E BV 0.016
VI 0.56
CCDM
Ccdm 09290+1917 RComp Comp A Note1
Note2 Discov num DRAs 0.64 DDEs 18.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.2 Sp F5 PmNote *
PmRA 28 PmDE 30 Dm number +19 2218 Cat1 BD
Name2 +19 977 Cat2 AGK2/3 HD 81899 M HD
ADS BDS M ADS BDS N IDS IDS 09234N1944A
HIC 46501
 
 
09290+1917 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 092900.62+191717.9 Mag 9.96 PmRA 26.00
PmDE 33.0 Calc delta mag 1.54 Calc coord yes
CCDM
Ccdm 09290+1917 RComp Comp B Note1
Note2 Discov num COU 936 DRAs DDEs
R dRAs Year 1973 Theta 239 Rho 0.5
Obs 1 Vmag 9.1 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 09234N1944B
HIC 46501