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Doubles in session


Current system
09167-0621
KUI 40
23 Hya


Nearby doubles
39' : 09160-0659
J 2650

43' : 09169-0538
HJ 127

51' : 09170-0531
GWP1155

58' : 09169-0524
OSO 27AB

73' : 09124-0656
A 2973

77' : 09185-0733
J 2651

79' : 09124-0707
GAA 7

81' : 09124-0709
HJ 807AB

92' : 09155-0751
RST3629

96' : 09122-0729
A 2972

100' : 09207-0742
A 1082AB

112' : 09228-0516
UC 1782

113' : 09110-0736
RST3626

117' : 09143-0430
RST4432

120' : 09230-0735
UC 1784

121' : 09161-0821
BU 212

121' : 09240-0532
HJ 2496

122' : 09109-0455
HJ 2485

124' : 09225-0454
GWP1165

126' : 09171-0827
J 745

126' : 09151-0825
GCB 22

128' : 09234-0503
GIC 85

129' : 09203-0817
GCB 24

130' : 09159-0831
J 3249

130' : 09224-0759
TDS6512

130' : 09085-0538
A 123AB



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.

09167-0621 KUI 40 (23 Hya)

 
 
09h 16m 41.72s -06° 21' 11.4" P.A. 287.00 sep 1.3 mag 5.30,10.80 Sp K2III dist. 75.24 pc (245.43 l.y.)
 
 
Coord 2000 09167-0621 Discov num KUI  40 Comp Coord arcsec 2000 09 16 41.72 -06 21 11.4
Date first 1936 Date last 2019 Obs 26
Pa first 282 Pa last 287.4 P.A. Now (θ) 287.4°
Sep first 1.6 Sep last 1.34 Sep. Now (ρ) 1.34"
Mag pri 5.30 Mag sec 10.80 delta mag (ΔM) 5.5 Spectral class K2III (yellow-orange)
Pri motion ra +024 Sec motion ra
Pri motion dec +006 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name 23 Hya Constellation Hydra SAO 136725 HIP 45527
Tycho2 4892-01405-1 Gaia DR2 5746003103393343232 HD 79910 HR 3681
GC 12800 BD BD-05 2762 Flamsteed 23 Hydrae Flamsteed name 23 Hya
FK5 2739 Distance 75.24 Distance ly 245.43
 
 
ORBITAL ELEMENTS
 
 
Period (P)922d (2.52y) Periastron (T)48797.8516d (1992.48y)± 25.6477 Semi-major axis (a)10.64m± 2.79
Eccentricity (e)0.293 Inclination (i)92.6°± 4.66 Longitude of periastron (ω)92.27°
Node (Ω)282.8°± 5.28 Notesn ReferenceHIP1997d
Equinox Last observation1991 Grade9(1=Definitive, 9=Indet.)
label theta rho
2000-01-01 270.9 0.002
2001-01-01 97.0 0.005
2002-01-01 283.9 0.010
2003-01-01 102.5 0.010
2004-01-01 292.1 0.004
2005-01-01 277.2 0.003
2006-01-01 98.0 0.006
2007-01-01 284.2 0.010
2008-01-01 102.9 0.010
2009-01-01 295.5 0.003
2010-01-01 279.4 0.005
2011-01-01 98.8 0.007
2012-01-01 284.6 0.010
2013-01-01 103.3 0.009
2014-01-01 302.0 0.002
2015-01-01 280.5 0.006
2016-01-01 99.5 0.008
2017-01-01 285.0 0.009
2018-01-01 103.7 0.008
2019-01-01 319.9 0.001
2020-01-01 281.3 0.007
2021-01-01 100.0 0.008
2022-01-01 285.4 0.009
2023-01-01 104.3 0.007
2024-01-01 24.5 0.001
2025-01-01 281.8 0.008
2026-01-01 100.4 0.009
2027-01-01 285.9 0.008
2028-01-01 105.1 0.006
2029-01-01 73.0 0.001
2030-01-01 282.3 0.009


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


 
  


wds09167-0621r.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 09167-0621 KUI 40 (23 Hya) : NOTES
 
 
discov_num notes refcode
KUI 40 23 Hya. A is a long-period spectroscopic binary.
Hipparcos astrometric solution adopted some elements from the orbit of HIP1997d
Jones (1928). Jon1928c
 
 
REFERENCES
 
 
refcode metd author reference
HIP1997d orb - Hipparcos 1997yCat.1239....0E
HIP1997d Hipparcos Catalog, ESA SP-1200, 1997
HIP1997d (DMSA/O Orbital Solutions)
Jon1928c - Jones, H.S. 1928MNRAS..88..652J
Jon1928c MNRAS 88, 652, 1928
 
 
DISCOVERER
 
 
idgroup discov author
1 KUI Kuiper, G.P., Schilt, van den Bos, W., and van Gent
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
09167-0621 KUI 40 1959 7 283 1.6 5.30 10.80 K2III NO 091641.72-062111.4
09167-0621 KUI 40 2009 8 286 1.4 5.30 10.80 K2III NO 091641.72-062111.4
09167-0621 KUI 40 2010 10 286 1.4 5.30 10.80 K2III NO 091641.72-062111.4
09167-0621 KUI 40 2015 13 287 1.4 5.30 10.80 K2III NO 091641.72-062111.4
09167-0621 KUI 40 2017 21 287 1.3 5.30 10.80 K2III NO 091641.72-062111.4
09167-0621 KUI 40 2018 22 287 1.4 5.30 10.80 K2III NO 091641.72-062111.4
09167-0621 KUI 40 2019 26 287 1.3 5.30 10.80 K2III NO 091641.72-062111.4

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

 
 
WDS 09167-0621 KUI 40 (23 Hya) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 09167-0621 KUI 40 (23 Hya) : MEASURES
 
 
No records found.

 
 
WDS 09167-0621 (23 Hya) : VIRTUAL EYEPIECE
 
 

09167-0621 KUI 40A mag 5.3 Sp K2III 09167-0621 KUI 40B sep 1.3 P.A. 287.50 mag 10.8 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 09167-0621 (23 Hya) : ALADIN DSS IMAGE @ 09h 16m 41.72s -06° 21' 11.4"
 
 
 
 
WDS 09167-0621 KUI 40 (23 Hya) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

09167-0621 KUI 40 distance=0' 09160-0659 J 2650 distance=39' 09169-0538 HJ 127 distance=43' 09170-0531 GWP1155 distance=51' 09169-0524 OSO 27AB distance=58' 09169-0524 OSO 27AC distance=58' 09124-0656 A 2973 distance=73' 09185-0733 J 2651 distance=77' 09124-0707 GAA 7 distance=79' 09124-0709 HJ 807AB distance=81' 09124-0709 HJ 807AC distance=81' 09155-0751 RST3629 distance=92' 09122-0729 A 2972 distance=96' 09207-0742 A 1082AB distance=100' 09207-0742 BGH 4CA distance=103' 09207-0742 TOK 527CD distance=103' 09228-0516 UC 1782 distance=112' 09110-0736 RST3626 distance=113' 09143-0430 RST4432 distance=117' 09230-0735 UC 1784 distance=120' 09161-0821 BU 212 distance=121' 09240-0532 HJ 2496 distance=121' 09143-0817 BU 908A,BC distance=121' 09109-0455 HJ 2485 distance=122' 09143-0817 BU 908BC distance=122' 09143-0817 BU 908BD distance=122' 09225-0454 GWP1165 distance=124' 09171-0827 J 745 distance=126' 09151-0825 GCB 22 distance=126' 09234-0503 GIC 85 distance=128' 09085-0538 A 123CD distance=129' 09203-0817 GCB 24 distance=129' 09159-0831 J 3249 distance=130' 09224-0759 TDS6512 distance=130' 09085-0538 A 123AB distance=130' 09085-0538 A 123AC distance=130' 09229-0753 BRT 428 distance=131' 09244-0725 HEI 352 distance=132' 09204-0821 J 1545 distance=132' 09203-0822 AG 339 distance=133' 09255-0557 KPP 586 distance=134' 09233-0752 UC 1785 distance=134' 09079-0708 STF1316BC distance=140' 09079-0708 STF1316AB distance=140' 09079-0708 STF1316AC distance=140' 09079-0708 TOK 64Aa,Ab distance=140' 09261-0641 SKF 787 distance=142' 09197-0405 GWP1160 distance=144' 09214-0415 HJ 132 distance=145' 09196-0842 TDS6470 distance=147' 09149-0845 WEI 21 distance=147' 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 09167-0621 KUI 40 287 1.3
Show 09160-0659 J 2650 19 8.2 39
Show 09169-0538 HJ 127 285 12.6 43
Show 09170-0531 GWP1155 202 17.8 51
Show 09169-0524 OSO 27 AB 73 10.6 58
Show 09169-0524 OSO 27 AC 321 20.2 58
Show 09124-0656 A 2973 12 2.9 73
Show 09185-0733 J 2651 209 3.9 77
Show 09124-0707 GAA 7 73 0.0 79
Show 09124-0709 HJ 807 AB 291 14.8 81
Show 09124-0709 HJ 807 AC 51 20.0 81
Show 09155-0751 RST3629 345 1.0 92
Show 09122-0729 A 2972 341 4.4 96
Show 09207-0742 A 1082 AB 200 0.6 100
Show 09207-0742 BGH 4 CA 326 135.0 103
Show 09207-0742 TOK 527 CD 342 999.9 103
Show 09228-0516 UC 1782 310 34.0 112
Show 09110-0736 RST3626 22 0.2 113
Show 09143-0430 RST4432 173 1.5 117
Show 09230-0735 UC 1784 267 23.7 120
Show 09161-0821 BU 212 198 1.6 121
Show 09240-0532 HJ 2496 48 19.5 121
Show 09143-0817 BU 908 A,BC 182 60.8 121
Show 09109-0455 HJ 2485 171 6.1 122
Show 09143-0817 BU 908 BC 233 0.9 122
Show 09143-0817 BU 908 BD 299 34.1 122
Show 09225-0454 GWP1165 238 8.2 124
Show 09171-0827 J 745 214 3.3 126
Show 09151-0825 GCB 22 109 6.4 126
Show 09234-0503 GIC 85 108 13.6 128
Show 09085-0538 A 123 CD 178 4.6 129
Show 09203-0817 GCB 24 298 7.1 129
Show 09159-0831 J 3249 152 3.7 130
Show 09224-0759 TDS6512 58 0.5 130
Show 09085-0538 A 123 AB 327 1.5 130
Show 09085-0538 A 123 AC 149 143.2 130
Show 09229-0753 BRT 428 191 4.3 131
Show 09244-0725 HEI 352 219 2.6 132
Show 09204-0821 J 1545 19 11.2 132
Show 09203-0822 AG 339 28 6.1 133
Show 09255-0557 KPP 586 13 5.5 134
Show 09233-0752 UC 1785 39 52.8 134
Show 09079-0708 STF1316 BC 296 14.2 140
Show 09079-0708 STF1316 AB 136 7.2 140
Show 09079-0708 STF1316 AC 280 8.1 140
Show 09079-0708 TOK 64 Aa,Ab 294 0.4 140
Show 09261-0641 SKF 787 151 11.7 142
Show 09197-0405 GWP1160 146 9.9 144
Show 09214-0415 HJ 132 237 27.1 145
Show 09196-0842 TDS6470 106 0.4 147
Show 09149-0845 WEI 21 15 26.5 147

 
 
WDS 09167-0621 : COMPONENTS
 
 
  A
B pa=287.5°
sep=1.33"
 
 
09167-0621 A
 
 
Componente originario normalizzato AB Name 23 Hya Coord arcsec 2000 091641.72-062111.4 Mag 5.3
Spectral class K2III (yellow-orange) PmRA 24.00 PmDE 6.0 SAO 136725
HIP 45527 Tycho2 4892-01405-1 HD 79910 HR 3681
GC 12800 BD BD-05 2762 Flamsteed 23 Hydrae Flamsteed name 23 Hya
FK5 2739
Tycho2
Tycho2 4892-01405-1 Pflag RAmdeg 139.17389971 DEmdeg -6.35314797
PmRA 24.6 PmDE 2.7 E RAmdeg 4 E DEmdeg 4
E pmRA 0.8 E pmDE 0.8 EpRAm 1991.25 EpDEm 1991.36
Num 20 Q RAmdeg 1.0 Q DEmdeg 1.0 Q pmRA 0.9
Q pmDE 1.0 BTmag 6.753 E BTmag 0.015 VTmag 5.362
E VTmag 0.009 Prox 999 TYC T HIP 45527
CCDM RAdeg 139.17384333 DEdeg -6.35315417 EpRA 1990 1.77
EpDE 1990 1.76 E RAdeg 3.6 E DEdeg 3.9 Posflg
Corr 0.1
SAO
SAO 136725 DelFlag RA1950 PmRA1950 0.0011
DE1950 PmDE1950 0.002 Vmag 5.4 SpType K0
Double code Source 70 CatNum 12800 DM BD-05 2762
DMcomp BDsup HD 79910 M HD 0
GC 12800 RA1950rad 2.41820581 DE1950rad -0.10722473 PmRA2000 0.0014
PmDE2000 0.006
Hipparcos
Catalog H HIP 45527 Proxy RAhms 09 16 41.72
DEdms -06 21 11.4 Vmag 5.24 VarFlag R Vmag H
RAdeg 139.174 DEdeg -6.35315 AstroRef + Plx 11.7
CCDM 09167-0621 N CCDM I Nsys 1 Ncomp 1
MultFlag O Source Qual M HIP
Theta Rho HD 79910 BD BD-05 2762
CD CP Dm number -05 2762 VIred 1.18
SpType K2III R SpType Coord arcsec 2000 091641.72-062111.4
Hipparcos 2
HIP 45527 Sn 75 So 4 Nc 1
RArad 2.4290417496 DErad -0.1108834735 Plx 13.29 PmRA 26.49
PmDE 3.66 E RArad 0.46 E DErad 0.39 E Plx 0.54
E pmRA 0.6 E pmDE 0.5 Hpmag 5.3985 E Hpmag 0.0008
SHp 0.006 VA 0 BV 1.172 E BV 0.002
VI 1.18
CCDM
Ccdm 09167-0621 RComp Comp A Note1
Note2 % Discov num DRAs -0.28 DDEs -11.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 5.4 Sp K0 PmNote *
PmRA 15 PmDE -1 Dm number -05 2762 Cat1 BD
Name2 136725 Cat2 SAO HD 79910 M HD
ADS BDS M ADS BDS N IDS IDS 09117S0556A
HIC 45527
 
 
09167-0621 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 091641.63-062111.0 Mag 10.8 Calc delta mag 5.5
Calc coord yes
CCDM
Ccdm 09167-0621 RComp Comp B Note1
Note2 Discov num KUI 40 DRAs DDEs
R dRAs Year 1936 Theta 282 Rho 1.6
Obs 7 Vmag 11.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 09117S0556B
HIC 45527