09228-0950 RST 5568 AB,C (KU Hya)

 
 
09h 22m 50.87s -09° 50' 19.5" P.A. 209.00 sep 1.9 mag 6.53,11.60 Sp A3V dist. 144.51 pc (471.39 l.y.)
 
 
Coord 2000 09228-0950 Discov num RST5568 Comp AB,C Coord arcsec 2000 09 22 50.87 -09 50 19.5
Date first 1938 Date last 2013 Obs 16
Pa first 203 Pa last 208.6 P.A. Now (θ) 208.6°
Sep first 1.9 Sep last 1.9 Sep. Now (ρ) 1.9"
Mag pri 6.53 Mag sec 11.60 delta mag (ΔM) 5.07 Spectral class A3V (white)
Pri motion ra -023 Sec motion ra
Pri motion dec -016 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
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 2020 79 49 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
ADS 7334 BD BD-09 2816 Distance 144.51 Distance ly 471.39
 
 
WDS 09228-0950 RST 5568 AB,C (KU Hya) : 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
Wad2000 - Wade, G.A. et al. 2000A&A...361..991W
Wad2000 A&A 361, 991, 2000
 
 
DISCOVERER
 
 
idgroup discov author
1 A Aitken, R.G.
312 RST Rossiter, R.A.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
09228-0950 RST5568 AB,C 1976 12 209 2.0 6.53 11.60 A3V N 092250.87-095019.5
09228-0950 RST5568 AB,C 2009 14 210 1.9 6.53 11.60 A3V N 092250.87-095019.5
09228-0950 RST5568 AB,C 2013 16 209 1.9 6.53 11.60 A3V N 092250.87-095019.5

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WDS 09228-0950 RST 5568 AB,C (KU Hya) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 09228-0950 RST 5568 AB,C (KU Hya) : MEASURES
 
 
No records found.

 
 
WDS 09228-0950 (KU Hya) : VIRTUAL EYEPIECE
 
 

09228-0950 A  1342A mag 6.99 Sp A3V 09228-0950 A  1342B sep 0.1 P.A. 48.20 mag 7.84 09228-0950 RST5568C sep 1.9 P.A. 208.20 mag 11.6 virtual eyepiece
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Radius:
Components only
 
 
WDS 09228-0950 (KU Hya) : ALADIN DSS IMAGE @ 09h 22m 50.87s -09° 50' 19.5"
 
 
 
 
WDS 09228-0950 RST 5568 AB,C (KU Hya) : 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' 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' 09230-0735  UC 1784 distance=136' 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 09228-0950 A 1342 AB 49 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 7.7 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 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 98 0.5 96
Show 09203-0822 AG 339 28 6.1 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 45 0.1 117
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 212 198 1.6 135
Show 09149-0845 WEI 21 15 26.5 135
Show 09230-0735 UC 1784 267 23.7 136

 
 
WDS 09228-0950 : COMPONENTS
 
 
  A B
B pa=48.2°
sep=0.12"
 
C pa=208.2°
sep=1.89"
pa=209.4°
sep=2.01"
 
 
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 ADS 7334
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 09228-0950 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source S Qual A M HIP AS
Theta 35 Rho 0.138 HD 81009 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 6.582 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 Calc delta mag 0.85 Calc coord 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 Calc delta mag 4.61 Calc coord 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