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Doubles in session


Current system
09228-0950
A 1342 AB


Nearby doubles
35' : 09244-0925
SKF 786

39' : 09205-0933
SHJ 105AB

52' : 09249-1034
J 1547

53' : 09257-0919
HJ 814

55' : 09193-0933
A 126

57' : 09252-0907
A 1587

59' : 09268-0947
GWP1176

70' : 09188-1025
A 125AB

75' : 09272-0913
A 1588AB

77' : 09240-1105
HU 55

82' : 09283-0959
STF1357AB

83' : 09225-0828
A 1083

85' : 09196-0842
TDS6470

85' : 09276-1036
GWP1181

87' : 09188-0846
LDS3872

87' : 09171-1005
J 1542

92' : 09167-0941
HDO 122

92' : 09279-0858
RST3638

95' : 09165-0959
RST3630

96' : 09289-0916
BEU 13

96' : 09203-0822
AG 339

97' : 09208-1121
BRT3210

97' : 09204-0821
J 1545

98' : 09211-1124
DAM 720

100' : 09294-1013
TDS6596

100' : 09276-0840
H 6 111AB
Alphard



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.

09228-0950 A 1342 AB

 
 
09h 22m 50.87s -09° 50' 19.5" P.A. 54.00 sep 0.1 mag 6.99,7.84 Sp A3V dist. 144.51 pc (471.39 l.y.)
 
 
Coord 2000 09228-0950 Discov num A  1342 Comp AB Coord arcsec 2000 09 22 50.87 -09 50 19.5
Date first 1905 Date last 2022 Obs 80
Pa first 198 Pa last 54.4 P.A. Now (θ) 77.3°
Sep first 0.1 Sep last 0.102 Sep. Now (ρ) 0.079"
Mag pri 6.99 Mag sec 7.84 delta mag (ΔM) 0.85 Spectral class A3V (white)
Pri motion ra -023 Sec motion ra
Pri motion dec -016 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
09228-0950 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 136799 09 22 51 -09 50 20 A 1342 AB 2022 80 54 0.1 6.99 7.84 0.85 Y <===
Show KU Hya 136799 09 22 51 -09 50 20 RST 5568 AB,C 2013 16 209 1.9 6.53 11.60 5.07
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name KU Hya Constellation Hydra SAO 136799 HIP 45999
Tycho2 5463-01516-1 Gaia DR2 5739817903810452352 HD 81009 HR 3724
GC 12936 ADS 7334 BD BD-09 2816 Distance 144.51
Distance ly 471.39
 
 
ORBITAL ELEMENTS
 
 
Period (P)56.61y± 0.22 Periastron (T)2013.51y± 0.1 Semi-major axis (a)0.166a± 0.001
Eccentricity (e)0 Inclination (i)66.7°± 0.5 Longitude of periastron (ω)0°
Node (Ω)24.9°± 0.3 Notesn ReferenceTok2021c
Equinox2000 Last observation2021 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 305.1 0.067
2001 319.9 0.071
2002 332.3 0.079
2003 342.1 0.089
2004 350.0 0.100
2005 356.2 0.111
2006 1.4 0.122
2007 5.7 0.132
2008 9.4 0.141
2009 12.7 0.149
2010 15.7 0.156
2011 18.4 0.161
2012 21.1 0.164
2013 23.6 0.166
2014 26.1 0.166
2015 28.7 0.164
2016 31.3 0.161
2017 34.1 0.156
2018 37.0 0.149
2019 40.3 0.141
2020 44.0 0.132
2021 48.3 0.122
2022 53.5 0.111
2023 59.7 0.100
2024 67.5 0.089
2025 77.3 0.079
2026 89.6 0.071
2027 104.4 0.067
2028 120.3 0.066
2029 135.6 0.069
2030 148.8 0.076
2031 159.4 0.086
2032 167.8 0.096
2033 174.5 0.108
2034 179.9 0.118
2035 184.4 0.129
2036 188.3 0.138
2037 191.7 0.147
2038 194.8 0.154
2039 197.6 0.159
2040 200.3 0.163
2041 202.8 0.165
2042 205.4 0.166
2043 207.9 0.165
2044 210.5 0.162
2045 213.2 0.157
2046 216.1 0.151
2047 219.3 0.144
2048 222.9 0.135
2049 227.0 0.125
2050 231.8 0.114


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds09228-0950e.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
WDS 09228-0950 A 1342 AB : NOTES
 
 
discov_num notes refcode
A 1342 A magnetic and variable star, KU Hya, , 3.41d, 0.05V, is in the system. Mlr1956a
See Baize & Petit (1989) catalog of doubles with variable component. Baz1989d
Combined analysis using speckle, radial velocity, various magnetic
field and polarization measurements. Wad2000
AB: Malkov et al. (2012) derive dynamical, photometric, and
spectroscopic masses 5.13 +/- 1.94, 4.25, and 2.00 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
Baz1989d - Baize, P. & Petit, M. 1989A&AS...77..497B
Baz1989d A&AS 77, 497, 1989
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
Tok2021c orb - Tokovinin, A. 2021IAUDS.203....1S
Tok2021c Inf. Circ. 203, 1, 2021
Wad2000 - Wade, G.A. et al. 2000A&A...361..991W
Wad2000 A&A 361, 991, 2000
 
 
DISCOVERER
 
 
discov author
A Aitken, R.G.
TOK Tokovinin, A., Cantarutti, R., Tighe, R., Schurter, P., van der Bliek, N.,
TOK Martinez, M., & Mondaca, E.
TOK Tokovinin, A., Corbett, H., Fors, O., Howard, W., Law, N.M., Moe, M.,
TOK Tokovinin, A. & Briceno, C.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
09228-0950 A 1342 AB 2006 72 182 0.1 6.99 7.84 A3V -09 2816 NO 092250.87-095019.5
09228-0950 A 1342 AB 2009 73 193 0.2 6.99 7.84 A3V -09 2816 NO 092250.87-095019.5
09228-0950 A 1342 AB 2010 74 198 0.2 6.99 7.84 A3V -09 2816 NO 092250.87-095019.5
09228-0950 A 1342 AB 2013 73 204 0.2 6.99 7.84 A3V -09 2816 NO 092250.87-095019.5
09228-0950 A 1342 AB 2014 76 207 0.2 6.99 7.84 A3V -09 2816 NO 092250.87-095019.5
09228-0950 A 1342 AB 2016 77 34 0.2 6.99 7.84 A3V -09 2816 NO 092250.87-095019.5
09228-0950 A 1342 AB 2018 78 38 0.1 6.99 7.84 A3V -09 2816 NO 092250.87-095019.5
09228-0950 A 1342 AB 2020 79 49 0.1 6.99 7.84 A3V -09 2816 NO 092250.87-095019.5
09228-0950 A 1342 AB 2022 80 54 0.1 6.99 7.84 A3V -09 2816 NO 092250.87-095019.5

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

 
 
WDS 09228-0950 A 1342 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 09228-0950 A 1342 AB : MEASURES
 
 
No records found.

 
 
WDS 09228-0950 : VIRTUAL EYEPIECE
 
 

09228-0950 A 1342A mag 6.99 Sp A3V 09228-0950 A 1342B sep 0.1 P.A. 54.40 mag 7.84 09228-0950 RST5568C sep 1.9 P.A. 208.60 mag 11.6 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 09228-0950 : ALADIN DSS IMAGE @ 09h 22m 50.87s -09° 50' 19.5"
 
 
 
 
WDS 09228-0950 A 1342 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

09228-0950 A 1342AB distance=1' 09228-0950 RST5568AB,C distance=1' 09244-0925 SKF 786 distance=35' 09205-0933 SHJ 105AB distance=39' 09205-0933 GUI 13AD distance=39' 09205-0933 DOO 49BC distance=40' 09249-1034 J 1547 distance=52' 09257-0919 HJ 814 distance=53' 09193-0933 A 126 distance=55' 09252-0907 A 1587 distance=57' 09268-0947 GWP1176 distance=59' 09188-1025 A 125AB distance=70' 09188-1025 A 125AC distance=70' 09272-0913 A 1588AB distance=75' 09272-0913 BU 590AB,C distance=75' 09240-1105 HU 55 distance=77' 09283-0959 STF1357AB distance=82' 09283-0959 FYM 167AC distance=82' 09225-0828 A 1083 distance=83' 09196-0842 TDS6470 distance=85' 09276-1036 GWP1181 distance=85' 09175-1021 GKM9219Aa,Ab distance=86' 09188-0846 LDS3872 distance=87' 09171-1005 J 1542 distance=87' 09167-0941 HDO 122 distance=92' 09279-0858 RST3638 distance=92' 09165-0959 RST3630 distance=95' 09289-0916 BEU 13 distance=96' 09203-0822 AG 339 distance=96' 09208-1121 BRT3210 distance=97' 09204-0821 J 1545 distance=97' 09211-1124 DAM 720 distance=98' 09294-1013 TDS6596 distance=100' 09276-0840 H 6 111AB (Alphard) distance=100' 09276-0840 H 6 111AC (Alphard) distance=100' 09203-0817 GCB 24 distance=101' 09160-1014 KPP 576 distance=104' 09224-0759 TDS6512 distance=112' 09156-1036 MTG 2 distance=117' 09229-0753 BRT 428 distance=117' 09233-0752 UC 1785 distance=119' 09171-0827 J 745 distance=120' 09287-0827 SKF 429 distance=121' 09215-1151 RST3635 distance=122' 09159-0831 J 3249 distance=129' 09207-0742 BGH 4CA distance=131' 09207-0742 TOK 527CD distance=131' 09207-0742 A 1082AB distance=133' 09283-0805 BU 213 distance=133' 09161-0821 BU 212 distance=135' 09149-0845 WEI 21 distance=135' 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 09228-0950 A 1342 AB 54 0.1 1
Show 09228-0950 RST5568 AB,C 209 1.9 1
Show 09244-0925 SKF 786 206 124.7 35
Show 09205-0933 SHJ 105 AB 211 229.1 39
Show 09205-0933 GUI 13 AD 227 122.3 39
Show 09205-0933 DOO 49 BC 199 9.2 40
Show 09249-1034 J 1547 14 9.0 52
Show 09257-0919 HJ 814 346 11.0 53
Show 09193-0933 A 126 122 1.2 55
Show 09252-0907 A 1587 99 1.0 57
Show 09268-0947 GWP1176 219 35.3 59
Show 09188-1025 A 125 AB 30 3.0 70
Show 09188-1025 A 125 AC 80 51.7 70
Show 09272-0913 A 1588 AB 196 0.4 75
Show 09272-0913 BU 590 AB,C 171 10.9 75
Show 09240-1105 HU 55 123 0.7 77
Show 09283-0959 STF1357 AB 54 7.8 82
Show 09283-0959 FYM 167 AC 275 18.3 82
Show 09225-0828 A 1083 58 4.4 83
Show 09196-0842 TDS6470 106 0.4 85
Show 09276-1036 GWP1181 60 93.4 85
Show 09175-1021 GKM9219 Aa,Ab 305 1.0 86
Show 09188-0846 LDS3872 72 28.2 87
Show 09171-1005 J 1542 92 8.5 87
Show 09167-0941 HDO 122 93 8.9 92
Show 09279-0858 RST3638 46 1.1 92
Show 09165-0959 RST3630 232 0.6 95
Show 09289-0916 BEU 13 97 0.5 96
Show 09203-0822 AG 339 29 6.2 96
Show 09208-1121 BRT3210 115 2.9 97
Show 09204-0821 J 1545 19 11.2 97
Show 09211-1124 DAM 720 224 13.9 98
Show 09294-1013 TDS6596 122 0.6 100
Show Alphard 09276-0840 H 6 111 AB 155 284.4 100
Show Alphard 09276-0840 H 6 111 AC 85 257.0 100
Show 09203-0817 GCB 24 298 7.1 101
Show 09160-1014 KPP 576 200 5.4 104
Show 09224-0759 TDS6512 58 0.5 112
Show 09156-1036 MTG 2 305 0.2 117
Show 09229-0753 BRT 428 191 4.3 117
Show 09233-0752 UC 1785 39 52.8 119
Show 09171-0827 J 745 214 3.3 120
Show 09287-0827 SKF 429 259 17.5 121
Show 09215-1151 RST3635 223 4.3 122
Show 09159-0831 J 3249 152 3.7 129
Show 09207-0742 BGH 4 CA 326 135.0 131
Show 09207-0742 TOK 527 CD 342 999.9 131
Show 09207-0742 A 1082 AB 200 0.6 133
Show 09283-0805 BU 213 171 1.9 133
Show 09161-0821 BU 212 197 1.6 135
Show 09149-0845 WEI 21 15 26.5 135

 
 
WDS 09228-0950 : COMPONENTS
 
 
  A B
B pa=54.4°
sep=0.10"
 
C pa=208.6°
sep=1.90"
pa=209.9°
sep=1.99"
 
 
09228-0950 A
 
 
Coord arcsec 2000 092250.87-095019.5 Mag 6.99 Spectral class A3V (white) PmRA -23.00
PmDE -16.0 SAO 136799 HIP 45999 Tycho2 5463-01516-1
HD 81009 HR 3724 GC 12936 BD BD-09 2816
Tycho2
Tycho2 5463-01516-1 Pflag RAmdeg 140.71189840 DEmdeg -9.83880187
PmRA -28.8 PmDE -16.0 E RAmdeg 4 E DEmdeg 4
E pmRA 1.1 E pmDE 1.2 EpRAm 1991.39 EpDEm 1991.39
Num 14 Q RAmdeg 1.2 Q DEmdeg 1.2 Q pmRA 1.3
Q pmDE 1.3 BTmag 6.796 E BTmag 0.015 VTmag 6.541
E VTmag 0.010 Prox 999 TYC T HIP 45999
CCDM AS RAdeg 140.71196528 DEdeg -9.83876472 EpRA 1990 1.75
EpDE 1990 1.69 E RAdeg 3.8 E DEdeg 4.2 Posflg P
Corr 0.2
SAO
SAO 136799 DelFlag RA1950 PmRA1950 -0.0022
DE1950 PmDE1950 -0.026 Vmag 6.5 SpType A2
Double code Source 70 CatNum 12936 DM BD-09 2816
DMcomp BDsup HD 81009 M HD 0
GC 12936 RA1950rad 2.44524309 DE1950rad -0.16797325 PmRA2000 -0.0018
PmDE2000 -0.021
Hipparcos
Catalog H HIP 45999 Proxy H RAhms 09 22 50.87
DEdms -09 50 19.5 Vmag 6.51 VarFlag R Vmag H
RAdeg 140.712 DEdeg -9.83876 AstroRef * Plx 7.2
CCDM -28.31 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source S Qual A M HIP AS
Theta 35 Rho 0.138 HD BD BD-09 2816
CD CP Dm number -09 2816 VIred 0.24
SpType A5spe... R SpType Coord arcsec 2000 092250.87-095019.5
Hipparcos 2
HIP 45999 Sn 55 So 3 Nc 2
RArad 2.4558871796 DErad -0.1717188017 Plx 6.92 PmRA -27.94
PmDE -13.01 E RArad 0.5 E DErad 0.41 E Plx 0.61
E pmRA 0.61 E pmDE 0.36 Hpmag E Hpmag 0.0013
SHp 0.009 VA 0 BV 0.246 E BV 0.006
VI 0.28
CCDM
Ccdm 09228-0950 RComp Comp A Note1
Note2 Discov num DRAs 2.86 DDEs -20.2
R dRAs 10 Year Theta Rho
Obs 3 Vmag 7.3 Sp A2 PmNote *
PmRA -30 PmDE -25 Dm number -09 2816 Cat1 BD
Name2 136799 Cat2 SAO HD 81009 M HD
ADS BDS A 7334 M ADS BDS N IDS IDS 09180S0925A
HIC 45999
 
 
09228-0950 B
 
 
Coord arcsec 2000 092250.88-095019.4 Mag 7.84 Delta magnitude 0.85 Coordinate calculated yes
CCDM
Ccdm 09228-0950 RComp Comp B Note1 *
Note2 Discov num A 1342 DRAs DDEs
R dRAs Year 1959 Theta 027 Rho 0.1
Obs 99 Vmag 7.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 7334 M ADS BDS N N IDS IDS 09180S0925B
HIC 45999
 
 
09228-0950 C
 
 
Coord arcsec 2000 092250.81-095021.2 Mag 11.6 Delta magnitude 4.61 Coordinate calculated yes
CCDM
Ccdm 09228-0950 RComp Comp C Note1
Note2 Discov num RST DRAs DDEs
R dRAs Year 1938 Theta 204 Rho 1.8
Obs 10 Vmag 11.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 7334 M ADS BDS N IDS IDS 09180S0925C
HIC 45999