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Doubles in session


Current system
08289-1552
RST 4403
HD 71811


Nearby doubles
7' : 08291-1546
A 3060

32' : 08307-1610
GWP1027

38' : 08274-1523
TDS5836

47' : 08276-1511
RST4400

54' : 08259-1623
HDS1199

57' : 08328-1559
KPP2258

60' : 08251-1613
HJ 786

63' : 08327-1521
BRT 572

64' : 08317-1640
LDS 222

72' : 08240-1548
RST4396

73' : 08296-1704
GWP1026AB

73' : 08326-1502
B 2528

75' : 08320-1653
TOI 575AB

77' : 08282-1438
J 2641

89' : 08332-1657
J 2059

90' : 08227-1555
HDS1194

91' : 08352-1550
J 1525

100' : 08287-1732
ARG 20

102' : 08246-1711
LDS3789

103' : 08361-1553
BRT 573

105' : 08283-1736
GWP1023

112' : 08366-1540
GWP1049

117' : 08358-1452
RST3598

117' : 08247-1731
J 2058

118' : 08216-1646
RST3588

119' : 08264-1745
ARA 213



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.

08289-1552 RST 4403 (HD 71811)

 
 
08h 28m 56.65s -15° 52' 13.8" P.A. 256.00 sep 1.4 mag 8.64,11.96 Sp K1V dist. 35.3 pc (115.15 l.y.)
 
 
Coord 2000 08289-1552 Discov num RST4403 Comp Coord arcsec 2000 08 28 56.65 -15 52 13.8
Date first 1940 Date last 2019 Obs 12
Pa first 13 Pa last 256 P.A. Now (θ) 256°
Sep first 1.6 Sep last 1.354 Sep. Now (ρ) 1.354"
Mag pri 8.64 Mag sec 11.96 delta mag (ΔM) 3.32 Spectral class K1V (yellow-orange)
Pri motion ra +154 Sec motion ra +153
Pri motion dec -147 Sec motion dec -142
Notes O (Orbital solution)
rPM=0.024 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 71811 Constellation Hydra SAO 154301 HIP 41609
Tycho2 5998-01012-1 Gaia DR2 5721995606302873472 HD 71811 BD BD-15 2454
Distance 35.3 Distance ly 115.15
 
 
ORBITAL ELEMENTS
 
 
Period (P)205.6y± 2.4 Periastron (T)2149.6y± 3.8 Semi-major axis (a)1.191a± 0.21
Eccentricity (e)0.183± 0.034 Inclination (i)160°± 5.9 Longitude of periastron (ω)25.8°± 2.8
Node (Ω)67.5°± 2.2 Notes ReferenceHor2021b
Equinox Last observation Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 282.2 1.232
2001 280.7 1.240
2002 279.3 1.248
2003 277.8 1.255
2004 276.3 1.262
2005 274.9 1.270
2006 273.5 1.277
2007 272.1 1.283
2008 270.7 1.290
2009 269.3 1.297
2010 268.0 1.303
2011 266.6 1.309
2012 265.3 1.315
2013 264.0 1.321
2014 262.7 1.327
2015 261.4 1.332
2016 260.1 1.337
2017 258.8 1.342
2018 257.5 1.347
2019 256.3 1.352
2020 255.0 1.356
2021 253.8 1.360
2022 252.5 1.364
2023 251.3 1.368
2024 250.1 1.371
2025 248.9 1.375
2026 247.7 1.378
2027 246.5 1.381
2028 245.3 1.383
2029 244.1 1.386
2030 242.9 1.388


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


 
  


wds08289-1552a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 08289-1552 RST 4403 (HD 71811) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Hor2021b S Horch, E.P., Broderick, K.G., Casetti-Dinescu, D.I., Henry, T.J., Fekel, F.C., 2021AJ....161..295H
Hor2021b Mutterspaugh, M.W., Willmarth, D.W., Winters, J.G., van Belle, G.T., Clark, C.A. &
Hor2021b Everett, M.E.
Hor2021b AJ 161, 295, 2021
 
 
DISCOVERER
 
 
idgroup discov author
1 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
08289-1552 RST4403 1991 5 296 1.2 8.64 11.96 K1V 082856.65-155213.8
08289-1552 RST4403 2009 6 269 1.3 8.64 11.96 K1V 082856.65-155213.8
08289-1552 RST4403 2012 8 264 1.3 8.64 11.96 K1V 082856.65-155213.8
08289-1552 RST4403 2014 9 263 1.3 8.64 11.96 K1V 082856.65-155213.8
08289-1552 RST4403 2018 10 257 1.4 8.64 11.96 K1V 082856.65-155213.8
08289-1552 RST4403 2019 11 256 1.4 8.64 11.96 K1V 082856.65-155213.8

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

 
 
WDS 08289-1552 RST 4403 (HD 71811) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 08289-1552 RST 4403 (HD 71811) : MEASURES
 
 
No records found.

 
 
WDS 08289-1552 (HD 71811) : VIRTUAL EYEPIECE
 
 

08289-1552 RST4403A mag 8.64 Sp K1V 08289-1552 RST4403B sep 1.3 P.A. 255.50 mag 11.96 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 08289-1552 (HD 71811) : ALADIN DSS IMAGE @ 08h 28m 56.65s -15° 52' 13.8"
 
 
 
 
WDS 08289-1552 RST 4403 (HD 71811) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

08289-1552 RST4403 distance=0' 08291-1546 A 3060 distance=7' 08307-1610 GWP1027 distance=32' 08274-1523 TDS5836 distance=38' 08276-1511 RST4400 distance=47' 08259-1623 HDS1199 distance=54' 08328-1559 KPP2258 distance=57' 08251-1613 HJ 786 distance=60' 08327-1521 BRT 572 distance=63' 08317-1640 LDS 222 distance=64' 08240-1548 RST4396 distance=72' 08296-1704 GWP1026AB distance=73' 08326-1502 B 2528 distance=73' 08320-1653 TOI 575AB distance=75' 08320-1653 TOI 575AC distance=75' 08282-1438 J 2641 distance=77' 08332-1657 J 2059 distance=89' 08227-1555 HDS1194 distance=90' 08352-1550 J 1525 distance=91' 08287-1732 ARG 20 distance=100' 08246-1711 LDS3789 distance=102' 08361-1553 BRT 573 distance=103' 08283-1736 GWP1023 distance=105' 08366-1540 GWP1049 distance=112' 08338-1424 A 2366BC distance=113' 08338-1424 A 2366A,BC distance=113' 08358-1452 RST3598 distance=117' 08247-1731 J 2058 distance=117' 08216-1646 RST3588 distance=118' 08264-1745 ARA 213 distance=119' 08289-1752 RST3595 distance=120' 08232-1720 ARA 212 distance=121' 08215-1452 NSN 341 distance=124' 08248-1404 BRT1904 distance=124' 08322-1750 GWP1034 distance=127' 08345-1414 BRT1905 distance=128' 08203-1452 RST3586 distance=140' 08202-1450 TDS5734 distance=142' 08219-1413 TDS5760 distance=143' 08392-1602 A 3063AB distance=148' 08392-1602 A 3063AB,C distance=148' 08167-1559 OL 211 distance=149' 08301-1821 HJ 4100 distance=150' 08187-1512 TOK 884 distance=153' 08349-1759 TVB 196 distance=154' 08325-1817 ARA 215 distance=155' 08233-1804 BHA 56 distance=155' 08319-1821 FEN 15 distance=155' 08181-1554 DAM 848 distance=156' 08212-1745 RST3587 distance=159' 08328-1323 BRT2710 distance=160' 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 08289-1552 RST4403 256 1.4
Show 08291-1546 A 3060 105 5.3 7
Show 08307-1610 GWP1027 170 15.3 32
Show 08274-1523 TDS5836 163 1.6 38
Show 08276-1511 RST4400 9 2.2 47
Show 08259-1623 HDS1199 142 0.6 54
Show 08328-1559 KPP2258 311 18.8 57
Show 08251-1613 HJ 786 297 12.1 60
Show 08327-1521 BRT 572 275 4.3 63
Show 08317-1640 LDS 222 257 6.8 64
Show 08240-1548 RST4396 146 0.9 72
Show 08296-1704 GWP1026 AB 33 35.2 73
Show 08326-1502 B 2528 204 0.3 73
Show 08320-1653 TOI 575 AB 14 0.6 75
Show 08320-1653 TOI 575 AC 262 5.4 75
Show 08282-1438 J 2641 145 6.0 77
Show 08332-1657 J 2059 48 6.7 89
Show 08227-1555 HDS1194 193 0.2 90
Show 08352-1550 J 1525 147 8.0 91
Show 08287-1732 ARG 20 173 15.0 100
Show 08246-1711 LDS3789 88 16.8 102
Show 08361-1553 BRT 573 75 4.6 103
Show 08283-1736 GWP1023 6 18.0 105
Show 08366-1540 GWP1049 102 7.8 112
Show 08338-1424 A 2366 BC 42 0.6 113
Show 08338-1424 A 2366 A,BC 139 65.2 113
Show 08358-1452 RST3598 252 2.1 117
Show 08247-1731 J 2058 329 6.8 117
Show 08216-1646 RST3588 242 1.8 118
Show 08264-1745 ARA 213 138 24.2 119
Show 08289-1752 RST3595 133 0.8 120
Show 08232-1720 ARA 212 271 9.8 121
Show 08215-1452 NSN 341 274 4.2 124
Show 08248-1404 BRT1904 230 2.7 124
Show 08322-1750 GWP1034 271 10.1 127
Show 08345-1414 BRT1905 41 6.2 128
Show 08203-1452 RST3586 2 0.5 140
Show 08202-1450 TDS5734 349 0.8 142
Show 08219-1413 TDS5760 175 1.6 143
Show 08392-1602 A 3063 AB 310 0.5 148
Show 08392-1602 A 3063 AB,C 236 12.6 148
Show 08167-1559 OL 211 9 8.9 149
Show 08301-1821 HJ 4100 180 22.4 150
Show 08187-1512 TOK 884 110 0.1 153
Show 08349-1759 TVB 196 158 17.3 154
Show 08325-1817 ARA 215 47 9.2 155
Show 08233-1804 BHA 56 271 18.6 155
Show 08319-1821 FEN 15 163 5.2 155
Show 08181-1554 DAM 848 154 14.4 156
Show 08212-1745 RST3587 84 4.6 159
Show 08328-1323 BRT2710 300 2.6 160

 
 
WDS 08289-1552 : COMPONENTS
 
 
  A
B pa=255.5°
sep=1.31"
 
 
08289-1552 A
 
 
Componente originario normalizzato AB Name HD 71811 Coord arcsec 2000 082856.65-155213.8 Mag 8.64
Spectral class K1V (yellow-orange) PmRA 154.00 PmDE -147.0 SAO 154301
HIP 41609 Tycho2 5998-01012-1 HD 71811 BD BD-15 2454
Tycho2
Tycho2 5998-01012-1 Pflag RAmdeg 127.23603305 DEmdeg -15.87049210
PmRA 154.1 PmDE -146.6 E RAmdeg 10 E DEmdeg 11
E pmRA 1.1 E pmDE 1.1 EpRAm 1990.04 EpDEm 1988.89
Num 9 Q RAmdeg 1.0 Q DEmdeg 0.8 Q pmRA 1.1
Q pmDE 0.8 BTmag 9.733 E BTmag 0.026 VTmag 8.637
E VTmag 0.016 Prox 12 TYC T HIP 41609
CCDM A RAdeg 127.23566722 DEdeg -15.87015361 EpRA 1990 1.77
EpDE 1990 1.69 E RAdeg 9.7 E DEdeg 11.5 Posflg
Corr -0.1
SAO
SAO 154301 DelFlag RA1950 PmRA1950 0.0125
DE1950 PmDE1950 -0.138 Vmag 8.2 SpType K0
Double code Source 21 CatNum 3380 DM BD-15 2454
DMcomp BDsup HD 71811 M HD 0
GC RA1950rad 2.21056782 DE1950rad -0.27403501 PmRA2000 0.0129
PmDE2000 -0.134
Hipparcos
Catalog H HIP 41609 Proxy H RAhms 08 28 56.56
DEdms -15 52 12.5 Vmag 8.49 VarFlag R Vmag G
RAdeg 127.236 DEdeg -15.8701 AstroRef A Plx 29.69
CCDM 08289-1552 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual B M HIP AB
Theta 296 Rho 1.166 HD 71811 BD BD-15 2454
CD CP Dm number -15 2454 VIred 0.97
SpType K1V R SpType Coord arcsec 2000 082856.56-155212.5
Hipparcos 2
HIP 41609 Sn 15 So 3 Nc 2
RArad 2.2206809535 DErad -0.2769861295 Plx 28.33 PmRA 153.53
PmDE -143.42 E RArad 1.05 E DErad 0.79 E Plx 1.25
E pmRA 1.19 E pmDE 0.82 Hpmag 8.6241 E Hpmag 0.0018
SHp 0.012 VA 0 BV 0.926 E BV 0.015
VI 0.97
CCDM
Ccdm 08289-1552 RComp Comp A Note1
Note2 Discov num DRAs 2.77 DDEs -13.0
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.7 Sp K0 PmNote *
PmRA 181 PmDE -138 Dm number -15 2454 Cat1 BD
Name2 154301 Cat2 SAO HD 71811 M HD
ADS BDS M ADS BDS N IDS IDS 08243S1532A
HIC 41609
 
 
08289-1552 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 082856.56-155214.1 Mag 11.96 PmRA 153.00
PmDE -142.0 Calc delta mag 3.32 Calc coord yes
CCDM
Ccdm 08289-1552 RComp Comp B Note1
Note2 Discov num RST4403 DRAs DDEs
R dRAs Year 1950 Theta 359 Rho 1.5
Obs 3 Vmag 11.7 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 08243S1532B
HIC 41609