09285+0903 STF 1356 (Ome Leo)

 
 
09h 28m 27.41s +09° 03' 24.4" P.A. 116.00 sep 0.9 mag 5.69,7.28 Sp F9IV dist. 33.17 pc (108.2 l.y.)
 
 
Coord 2000 09285+0903 Discov num STF1356 Comp Coord arcsec 2000 09 28 27.41 +09 03 24.4
Date first 1825 Date last 2021 Obs 691
Pa first 154 Pa last 116.3 P.A. Now (θ) 117.5°
Sep first 1.0 Sep last 0.92 Sep. Now (ρ) 0.926"
Mag pri 5.69 Mag sec 7.28 delta mag (ΔM) 1.59 Spectral class F9IV (yellow-white)
Pri motion ra +050 Sec motion ra +050
Pri motion dec -005 Sec motion dec -005
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Ome Leo Constellation Leo SAO 117717 HIP 46454
Tycho2 0820-01635-1 HD 81858 HR 3754 GC 13062
ADS 7390 BD BD+09 2188 Bayer Omega Leonis Bayer name Ome Leo
Flamsteed 2 Leonis Flamsteed name 2 Leo Distance 33.17 Distance ly 108.2
Bayer greek ω Leo
 
 
ORBITAL ELEMENTS
 
 
Period (P)43089d (117.97y)± 26 Periastron (T)36649m (1959.219y)± 11 Semi-major axis (a)0.8599a± 0.0022
Eccentricity (e)0.5619± 0.0014 Inclination (i)65.347°± 0.093 Longitude of periastron (ω)302.54°± 0.14
Node (Ω)325.982°± 0.074 Notesn ReferenceMut2010b
Equinox2000 Last observation2008 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 84.5 0.578
2001 86.8 0.593
2002 88.9 0.609
2003 91.0 0.624
2004 92.9 0.640
2005 94.8 0.656
2006 96.5 0.673
2007 98.2 0.689
2008 99.8 0.705
2009 101.3 0.721
2010 102.8 0.738
2011 104.2 0.754
2012 105.5 0.770
2013 106.8 0.785
2014 108.1 0.801
2015 109.3 0.816
2016 110.4 0.831
2017 111.5 0.846
2018 112.6 0.860
2019 113.6 0.874
2020 114.6 0.888
2021 115.6 0.901
2022 116.5 0.914
2023 117.5 0.926
2024 118.4 0.938
2025 119.2 0.950
2026 120.1 0.961
2027 120.9 0.971
2028 121.7 0.981
2029 122.5 0.990
2030 123.3 0.999


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



 
 


wds09285%2B0903b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
WDS 09285+0903 STF 1356 (Ome Leo) : NOTES
 
 
discov_num notes refcode
STF1356 ome Leo = 2 Leo. Mlr1956a
Chevalier identified this star as ome Leo, but gave incorrect Che1911
coordinates, leading to its initial designation as 09283+0903 CHE 137. Hrt2012b
Giant primary according to isochrone fit.
1980.019: This observation of omega Leo by Weigelt (1983) was Wgt1983
incorrectly attributed to 09412+0954 = omi Leo in earlier editions
of both the interferometric catalog and the WDS. As a result, omi Leo
was incorrectly assigned the discoverer designation WGT 1.
H 1 26. MEv2010
Combined spectroscopic/astrometric solution of SB1. Calculated masses
1.92 +/- 0.96 and 0.28 +/- 0.92 Msun; values are poorly constrained. Mut2010b
Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
masses of 1.67 +/- 0.24, 2.14, and 1.27 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
Che1911 Ma - Chevalier, Stanislas .
Che1911 +Pa Shanghai Obs. Zo-Se 7, B1, 1911 (corrections are described in Hrt2012b)
Hrt2012b E2 - Hartkopf, W.I. ...................
Hrt2012b Webb Soc., Double Star Circ. 20, 2012
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
Mlr1956a Mc - Muller, P. 1956JO.....39..127M
Mlr1956a J. Obs. 39, 127, 1956
Mut2010b Kp - Muterspaugh, M.W., Hartkopf, W.I., Lane. B.F., O'Connell, J., Williamson, M., 2010AJ....140.1623M
Mut2010b Kulkarni, S.R., Konacki, M., Burke, B.F., Colavita, M.M., Shao, M., &
Mut2010b Wiktorowicz, S.J.
Mut2010b AJ 140, 1623, 2010
Wgt1983 S j Weigelt, G.P. & Wirnitzer, B. 1983OptL....8..389W
Wgt1983 Optics Lett 8, 389, 1983
 
 
DISCOVERER
 
 
idgroup discov author
1 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
09285+0903 STF1356 2006 623 96 0.7 5.69 7.28 F9IV NOD 092827.41+090324.4
09285+0903 STF1356 2009 627 101 0.7 5.69 7.28 F9IV NOD 092827.41+090324.4
09285+0903 STF1356 2010 655 108 0.8 5.69 7.28 F9IV NOD 092827.41+090324.4
09285+0903 STF1356 2011 658 106 0.8 5.69 7.28 F9IV NOD 092827.41+090324.4
09285+0903 STF1356 2013 660 107 0.8 5.69 7.28 F9IV NOD 092827.41+090324.4
09285+0903 STF1356 2014 650 108 0.8 5.69 7.28 F9IV NOD 092827.41+090324.4
09285+0903 STF1356 2015 654 110 0.8 5.69 7.28 F9IV NOD 092827.41+090324.4
09285+0903 STF1356 2016 655 109 0.8 5.69 7.28 F9IV NO 092827.41+090324.4
09285+0903 STF1356 2017 665 112 0.9 5.69 7.28 F9IV NO 092827.41+090324.4
09285+0903 STF1356 2018 668 117 1.0 5.69 7.28 F9IV NO 092827.41+090324.4
09285+0903 STF1356 2019 686 115 0.9 5.69 7.28 F9IV NO 092827.41+090324.4
09285+0903 STF1356 2020 687 114 1.0 5.69 7.28 F9IV NO 092827.41+090324.4
09285+0903 STF1356 2021 690 116 0.9 5.69 7.28 F9IV NO 092827.41+090324.4

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

 
 
WDS 09285+0903 STF 1356 (Ome Leo) : VISUAL OBSERVATIONS REPORTS
 
 
Show date username difficulty separation pa_estim interest notes
Show 21/04/21 Adam Long easy separated 150 interesting Plenty of space between at 320x in 14", DM appeared less than stats.

 
 
WDS 09285+0903 STF 1356 (Ome Leo) : MEASURES
 
 
No records found.

 
 
WDS 09285+0903 (Ome Leo) : VIRTUAL EYEPIECE
 
 

09285+0903 STF1356A mag 5.69 Sp F9IV 09285+0903 STF1356B sep 0.9 P.A. 116.60 mag 7.28 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.

Radius:
Components only
 
 
WDS 09285+0903 (Ome Leo) : ALADIN DSS IMAGE @ 09h 28m 27.41s +09° 03' 24.4"
 
 
 
 
WDS 09285+0903 STF 1356 (Ome Leo) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


09285+0903  STF1356 distance=0' 09276+0901  SLW 357 distance=14' 09276+0858  HEI 489 distance=14' 09290+0938  CHE 138AB distance=36' 09290+0938  LAD   1AC distance=36' 09261+0842  CHE 135 distance=41' 09312+0908  CHE 139 distance=43' 09313+0913  SKF1720 distance=44' 09312+0845  CHE 140 distance=46' 09279+0818  A  2978 distance=47' 09260+0937  LDS3890 distance=50' 09319+0911  OCC 891 distance=52' 09285+0811  H 4  47 distance=53' 09262+0823  CHE 136 distance=53' 09322+0854  OCC9149 distance=56' 09325+0906  XMI  93 distance=60' 09325+0840  SLW 364 distance=64' 09320+0943  SHJ 107 distance=66' 09333+0910  A  2756AB distance=72' 09332+0927  SKF1721 distance=74' 09233+0921  HEI 487 distance=79' 09338+0910  GWP1194 distance=79' 09291+1024  CVR1225 distance=82' 09295+1029  GWP1185 distance=87' 09306+1036  STF1360AB distance=98' 09306+1036  STF1360AC distance=98' 09306+1036  STF1360AD distance=98' 09225+0843  HJ 5477 distance=99' 09232+1008  J   386 distance=101' 09290+1047  TDS6592 distance=105' 09347+0811  OCC 385 distance=107' 09337+1021  CVR1228 distance=110' 09242+1033  OCC 549 distance=110' 09344+1009  HJ  816 distance=111' 09275+1054  J   388 distance=112' 09323+1046  ARY  50 distance=119' 09358+0952  OCC 568 distance=120' 09344+1025  SLW 368 distance=121' 09209+0816  DAM1601 distance=122' 09204+0834  GTZ   7 distance=124' 09261+0704  GWP1173 distance=125' 09369+0927  DAL  17 distance=127' 09207+0810  A  2976AB distance=127' 09207+0810  A  2976BC distance=128' 09198+0844  GWP1161 distance=130' 09245+1100  HJ  811 distance=131' 09226+0725  A  2977 distance=132' 09357+1023  GWP1200 distance=134' 09205+0752  BRT2148 distance=138' 09195+0947  OCC 933 distance=140' 09345+0716  GWP1197 distance=140' grafico limitrofi
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Pass over with the mouse cursor to display the catalog designation.

Show name coord_2000 discov# comp pa sep dist(')
Show 09285+0903 STF1356 116 0.9
Show 09276+0901 SLW 357 51 20.4 14
Show 09276+0858 HEI 489 183 0.6 14
Show 09290+0938 CHE 138 AB 6 28.3 36
Show 09290+0938 LAD 1 AC 204 9.1 36
Show 09261+0842 CHE 135 116 2.7 41
Show 09312+0908 CHE 139 56 12.2 43
Show 09313+0913 SKF1720 306 1.5 44
Show 09312+0845 CHE 140 203 25.1 46
Show 09279+0818 A 2978 102 1.3 47
Show 09260+0937 LDS3890 46 15.8 50
Show 09319+0911 OCC 891 -1 0.1 52
Show 09285+0811 H 4 47 80 25.2 53
Show 09262+0823 CHE 136 143 20.8 53
Show 09322+0854 OCC9149 -1 0.4 56
Show 09325+0906 XMI 93 196 21.8 60
Show 09325+0840 SLW 364 213 132.3 64
Show 09320+0943 SHJ 107 77 37.1 66
Show 09333+0910 A 2756 AB 359 1.4 72
Show 09332+0927 SKF1721 36 1.3 74
Show 09233+0921 HEI 487 104 2.3 79
Show 09338+0910 GWP1194 17 102.7 79
Show 09291+1024 CVR1225 78 3.1 82
Show 09295+1029 GWP1185 300 41.6 87
Show 09306+1036 STF1360 AB 242 13.8 98
Show 09306+1036 STF1360 AC 76 104.8 98
Show 09306+1036 STF1360 AD 61 176.4 98
Show 09225+0843 HJ 5477 327 30.5 99
Show 09232+1008 J 386 53 0.5 101
Show 09290+1047 TDS6592 239 1.2 105
Show 09347+0811 OCC 385 -1 0.5 107
Show 09337+1021 CVR1228 72 4.3 110
Show 09242+1033 OCC 549 -1 0.1 110
Show 09344+1009 HJ 816 16 12.7 111
Show 09275+1054 J 388 351 4.9 112
Show 09323+1046 ARY 50 253 120.2 119
Show 09358+0952 OCC 568 -1 0.4 120
Show 09344+1025 SLW 368 339 11.3 121
Show 09209+0816 DAM1601 317 13.8 122
Show 09204+0834 GTZ 7 238 15.4 124
Show 09261+0704 GWP1173 252 541.5 125
Show 09369+0927 DAL 17 279 29.0 127
Show 09207+0810 A 2976 AB 237 28.6 127
Show 09207+0810 A 2976 BC 137 1.0 128
Show 09198+0844 GWP1161 332 10.1 130
Show 09245+1100 HJ 811 37 16.6 131
Show 09226+0725 A 2977 267 1.6 132
Show 09357+1023 GWP1200 40 21.8 134
Show 09205+0752 BRT2148 37 3.3 138
Show 09195+0947 OCC 933 -1 0.1 140
Show 09345+0716 GWP1197 104 30.7 140

 
 
WDS 09285+0903 : COMPONENTS
 
 
  A
B pa=116.6°
sep=0.91"
 
 
09285+0903 A
 
 
Componente originario normalizzato AB Name Ome Leo Coord arcsec 2000 092827.41+090324.4 Mag 5.69
Spectral class F9IV (yellow-white) PmRA 50.00 PmDE -5.0 SAO 117717
HIP 46454 Tycho2 0820-01635-1 HD 81858 HR 3754
GC 13062 BD BD+09 2188 Bayer Omega Leonis Bayer name Ome
Flamsteed 2 Leonis Flamsteed name 2 Leo
Tycho2
Tycho2 0820-01635-1 Pflag RAmdeg 142.11422732 DEmdeg 9.05678227
PmRA 50.4 PmDE -5.0 E RAmdeg 4 E DEmdeg 4
E pmRA 0.9 E pmDE 0.9 EpRAm 1991.45 EpDEm 1991.25
Num 18 Q RAmdeg 1.5 Q DEmdeg 1.0 Q pmRA 1.4
Q pmDE 1.0 BTmag 6.171 E BTmag 0.015 VTmag 5.507
E VTmag 0.010 Prox 999 TYC T HIP 46454
CCDM AB RAdeg 142.11411139 DEdeg 9.05679417 EpRA 1990 1.80
EpDE 1990 1.58 E RAdeg 3.6 E DEdeg 4.3 Posflg P
Corr 0.0
SAO
SAO 117717 DelFlag RA1950 PmRA1950 0.0036
DE1950 PmDE1950 -0.007 Vmag 5.5 SpType G0
Double code Source 70 CatNum 13062 DM BD+09 2188
DMcomp BDsup HD 81858 M HD 0
GC 13062 RA1950rad 2.46868516 DE1950rad 0.16188903 PmRA2000 0.0037
PmDE2000 -0.004
Hipparcos
Catalog H HIP 46454 Proxy H RAhms 09 28 27.38
DEdms +09 03 24.4 Vmag 5.4 VarFlag R Vmag H
RAdeg 142.114 DEdeg 9.05677 AstroRef A Plx 29.05
CCDM 09285+0903 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 59 Rho 0.471 HD 81858 BD BD+09 2188
CD CP Dm number +09 2188 VIred 0.67
SpType F9V R SpType Coord arcsec 2000 092827.38+090324.4
Hipparcos 2
HIP 46454 Sn 15 So 3 Nc 2
RArad 2.4803584325 DErad 0.1580704704 Plx 30.15 PmRA 36.98
PmDE 5.78 E RArad 1.47 E DErad 0.71 E Plx 1.45
E pmRA 2.3 E pmDE 0.7 Hpmag 5.5324 E Hpmag 0.0009
SHp 0.004 VA 0 BV 0.605 E BV 0.005
VI 0.67
CCDM
Ccdm 09285+0903 RComp Comp A Note1
Note2 Discov num DRAs -2.57 DDEs 23.8
R dRAs 10 Year Theta Rho
Obs 2 Vmag 5.9 Sp G0 PmNote *
PmRA 59 PmDE -21 Dm number +09 2188 Cat1 BD
Name2 +09 1210 Cat2 AGK2/3 HD 81858 M HD
ADS BDS A 7390 M ADS BDS N IDS IDS 09231N0930A
HIC 46454
 
 
09285+0903 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 092827.46+090324.0 Mag 7.28 PmRA 50.00
PmDE -5.0 Calc delta mag 1.59 Calc coord yes
CCDM
Ccdm 09285+0903 RComp Comp B Note1 *
Note2 Discov num STF1356 DRAs DDEs
R dRAs Year 1825 Theta Rho
Obs 99 Vmag 6.7 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 7390 M ADS BDS N IDS IDS 09231N0930B
HIC 46454