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Current system
08474-1703
BU 586
HD 75098


Nearby doubles
27' : 08476-1637
KPP2159

27' : 08484-1641
POC 2

31' : 08494-1711
POC 3

32' : 08495-1706
LDS3824

51' : 08438-1701
LDS 231

53' : 08457-1750
A 3066

58' : 08481-1800
DAM1486

62' : 08489-1800
TDS6113

62' : 08485-1803
A 3067

71' : 08457-1810
TDS6082

72' : 08444-1801
RST2579

72' : 08523-1657
TDS 498

74' : 08497-1809
A 3069

74' : 08504-1604
TDS6127

76' : 08474-1548
HDS1272

79' : 08421-1726
HO 529

82' : 08417-1715
RST3602

89' : 08413-1646
GWP1067

92' : 08536-1722
TOK 666

95' : 08409-1720
A 3065

103' : 08409-1619
ALD 38

105' : 08542-1629
GWP1104

105' : 08421-1552
GWP1068

105' : 08417-1557
HJ 4124AB

105' : 08518-1827
TDS 497

108' : 08412-1602
TOI 564



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.

08474-1703 BU 586 (HD 75098)

 
 
08h 47m 21.48s -17° 03' 10.3" P.A. 232.00 sep 0.3 mag 7.10,7.73 Sp G0+A2 dist. 189.04 pc (616.65 l.y.)
 
 
Coord 2000 08474-1703 Discov num BU  586 Comp Coord arcsec 2000 08 47 21.48 -17 03 10.3
Date first 1878 Date last 2018 Obs 24
Pa first 53 Pa last 231.6 P.A. Now (θ) 231.6°
Sep first 0.8 Sep last 0.266 Sep. Now (ρ) 0.266"
Mag pri 7.10 Mag sec 7.73 delta mag (ΔM) 0.63 Spectral class G0+A2 (yellow/white)
Pri motion ra -015 Sec motion ra
Pri motion dec -008 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 75098 Constellation Hydra SAO 154636 HIP 43152
Tycho2 6016-02968-1 Gaia DR2 5709058447549378304 HD 75098 GC 12131
ADS 6999 BD BD-16 2589 Distance 189.04 Distance ly 616.65
 
 
ORBITAL ELEMENTS
 
 
Period (P)442.24y Periastron (T)2009.74y Semi-major axis (a)0.538a
Eccentricity (e)0.529 Inclination (i)63.9° Longitude of periastron (ω)317.3°
Node (Ω)239.7° Notes ReferenceTok2015c
Equinox2000 Last observation2014 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 186.0 0.138
2001 190.4 0.143
2002 194.6 0.148
2003 198.4 0.155
2004 202.0 0.161
2005 205.2 0.168
2006 208.2 0.175
2007 211.0 0.182
2008 213.6 0.189
2009 216.0 0.196
2010 218.2 0.203
2011 220.2 0.210
2012 222.2 0.216
2013 224.0 0.223
2014 225.7 0.229
2015 227.3 0.235
2016 228.9 0.241
2017 230.4 0.247
2018 231.8 0.252
2019 233.1 0.257
2020 234.4 0.262
2021 235.7 0.266
2022 236.9 0.270
2023 238.1 0.274
2024 239.3 0.278
2025 240.4 0.281
2026 241.5 0.284
2027 242.6 0.286
2028 243.6 0.289
2029 244.7 0.291
2030 245.7 0.293


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


 
  


wds08474-1703b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 08474-1703 BU 586 (HD 75098) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Tok2015c orb+j Tokovinin, A., Mason, B.D., Hartkopf, W.I., Mendez, R.A., & Horch, E.P. 2015AJ....150...50T
Tok2015c +St AJ 150, 50, 2015 (some measures corrected in Tok2017b) 2017AJ....154..110T
 
 
DISCOVERER
 
 
idgroup discov author
1 BU Burnham, S.W. (BU 1 - 81)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
08474-1703 BU 586 2006 19 28 0.2 7.10 7.73 G0+A2 O 084721.48-170310.3
08474-1703 BU 586 2009 20 216 0.2 7.10 7.73 G0+A2 O 084721.48-170310.3
08474-1703 BU 586 2011 21 41 0.2 7.10 7.73 G0 A2 O 084721.48-170310.3
08474-1703 BU 586 2013 22 44 0.2 7.10 7.73 G0 A2 O 084721.48-170310.3
08474-1703 BU 586 2014 23 226 0.2 7.10 7.73 G0+A2 O 084721.48-170310.3
08474-1703 BU 586 2018 24 232 0.3 7.10 7.73 G0+A2 O 084721.48-170310.3

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

 
 
WDS 08474-1703 BU 586 (HD 75098) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 08474-1703 BU 586 (HD 75098) : MEASURES
 
 
No records found.

 
 
WDS 08474-1703 (HD 75098) : VIRTUAL EYEPIECE
 
 

08474-1703 BU 586A mag 7.1 Sp G0 08474-1703 BU 586B sep 0.3 P.A. 230.30 mag 7.73 Sp A2 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 08474-1703 (HD 75098) : ALADIN DSS IMAGE @ 08h 47m 21.48s -17° 03' 10.3"
 
 
 
 
WDS 08474-1703 BU 586 (HD 75098) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

08474-1703 BU 586 distance=0' 08476-1637 KPP2159 distance=27' 08484-1641 POC 2 distance=27' 08494-1711 POC 3 distance=31' 08495-1706 LDS3824 distance=32' 08438-1701 LDS 231 distance=51' 08457-1750 A 3066 distance=53' 08481-1800 DAM1486 distance=58' 08489-1800 TDS6113 distance=62' 08485-1803 A 3067 distance=62' 08457-1810 TDS6082 distance=71' 08444-1801 RST2579 distance=72' 08523-1657 TDS 498 distance=72' 08497-1809 A 3069 distance=74' 08504-1604 TDS6127 distance=74' 08474-1548 HDS1272 distance=76' 08421-1726 HO 529 distance=79' 08417-1715 RST3602 distance=82' 08413-1646 GWP1067 distance=89' 08536-1722 TOK 666 distance=92' 08409-1720 A 3065 distance=95' 08409-1619 ALD 38 distance=103' 08542-1629 GWP1104 distance=105' 08421-1552 GWP1068 distance=105' 08417-1557 HJ 4124AB distance=105' 08518-1827 TDS 497 distance=105' 08412-1602 TOI 564 distance=108' 08431-1833 LDS3811 distance=109' 08408-1605 GWP1065 distance=111' 08550-1640 UC 1729 distance=112' 08477-1856 J 2647 distance=115' 08527-1535 RST3611 distance=117' 08476-1859 LDS 235 distance=117' 08523-1837 GWP1095 distance=118' 08399-1802 J 2061 distance=122' 08418-1530 J 2644 distance=124' 08441-1506 GWP1072 distance=127' 08516-1510 UC 1724 distance=129' 08514-1859 NSN 339 distance=130' 08392-1602 A 3063AB distance=133' 08392-1602 A 3063AB,C distance=133' 08442-1908 TDS6066 distance=133' 08552-1814 S 585 distance=133' 08381-1736 KPP1505 distance=137' 08568-1726 ARG 72AB distance=138' 08568-1726 SHY 533BC distance=138' 08397-1828 BRT1465 distance=139' 08380-1750 GWP1053 distance=142' 08491-1440 HJ 797 distance=146' 08389-1825 TDS6007 distance=146' 08403-1518 A 3064 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 08474-1703 BU 586 232 0.3
Show 08476-1637 KPP2159 20 17.7 27
Show 08484-1641 POC 2 75 6.1 27
Show 08494-1711 POC 3 227 7.8 31
Show 08495-1706 LDS3824 48 10.8 32
Show 08438-1701 LDS 231 66 261.1 51
Show 08457-1750 A 3066 50 0.4 53
Show 08481-1800 DAM1486 275 1.0 58
Show 08489-1800 TDS6113 124 0.6 62
Show 08485-1803 A 3067 39 1.7 62
Show 08457-1810 TDS6082 164 2.1 71
Show 08444-1801 RST2579 49 1.1 72
Show 08523-1657 TDS 498 349 1.9 72
Show 08497-1809 A 3069 297 1.1 74
Show 08504-1604 TDS6127 17 2.0 74
Show 08474-1548 HDS1272 94 0.5 76
Show 08421-1726 HO 529 196 0.3 79
Show 08417-1715 RST3602 173 0.9 82
Show 08413-1646 GWP1067 293 561.3 89
Show 08536-1722 TOK 666 118 27.8 92
Show 08409-1720 A 3065 280 0.3 95
Show 08409-1619 ALD 38 250 1.4 103
Show 08542-1629 GWP1104 261 104.8 105
Show 08421-1552 GWP1068 146 24.6 105
Show 08417-1557 HJ 4124 AB 88 25.0 105
Show 08518-1827 TDS 497 218 2.0 105
Show 08412-1602 TOI 564 74 0.7 108
Show 08431-1833 LDS3811 341 17.0 109
Show 08408-1605 GWP1065 151 130.2 111
Show 08550-1640 UC 1729 73 11.0 112
Show 08477-1856 J 2647 114 6.2 115
Show 08527-1535 RST3611 42 1.1 117
Show 08476-1859 LDS 235 238 30.4 117
Show 08523-1837 GWP1095 298 35.5 118
Show 08399-1802 J 2061 30 5.5 122
Show 08418-1530 J 2644 217 6.7 124
Show 08441-1506 GWP1072 213 9.3 127
Show 08516-1510 UC 1724 89 35.4 129
Show 08514-1859 NSN 339 242 3.9 130
Show 08392-1602 A 3063 AB 310 0.5 133
Show 08392-1602 A 3063 AB,C 236 12.6 133
Show 08442-1908 TDS6066 243 0.8 133
Show 08552-1814 S 585 151 64.2 133
Show 08381-1736 KPP1505 119 11.4 137
Show 08568-1726 ARG 72 AB 182 4.2 138
Show 08568-1726 SHY 533 BC 152 999.9 138
Show 08397-1828 BRT1465 149 3.6 139
Show 08380-1750 GWP1053 303 39.0 142
Show 08491-1440 HJ 797 138 16.6 146
Show 08389-1825 TDS6007 102 0.7 146
Show 08403-1518 A 3064 354 0.7 147

 
 
WDS 08474-1703 : COMPONENTS
 
 
  A
B pa=230.3°
sep=0.26"
 
 
08474-1703 A
 
 
Componente originario normalizzato AB Name HD 75098 Coord arcsec 2000 084721.48-170310.3 Mag 7.1
Spectral class G0 (yellow) PmRA -15.00 PmDE -8.0 SAO 154636
HIP 43152 Tycho2 6016-02968-1 HD 75098 GC 12131
BD BD-16 2589
Tycho2
Tycho2 6016-02968-1 Pflag RAmdeg 131.83945525 DEmdeg -17.05287360
PmRA -13.8 PmDE -7.6 E RAmdeg 4 E DEmdeg 5
E pmRA 1.3 E pmDE 1.3 EpRAm 1991.52 EpDEm 1991.11
Num 13 Q RAmdeg 2.0 Q DEmdeg 1.6 Q pmRA 2.2
Q pmDE 1.6 BTmag 7.323 E BTmag 0.015 VTmag 6.574
E VTmag 0.010 Prox 999 TYC T HIP 43152
CCDM AB RAdeg 131.83948806 DEdeg -17.05285583 EpRA 1990 1.75
EpDE 1990 1.50 E RAdeg 4.0 E DEdeg 4.6 Posflg P
Corr -0.1
SAO
SAO 154636 DelFlag RA1950 PmRA1950 0.0004
DE1950 PmDE1950 -0.042 Vmag 6.6 SpType +++
Double code Source 70 CatNum 12131 DM BD-16 2589
DMcomp BDsup HD 75098 M HD 9
GC 12131 RA1950rad 2.29097071 DE1950rad -0.29441179 PmRA2000 0.0008
PmDE2000 -0.038
Hipparcos
Catalog H HIP 43152 Proxy H RAhms 08 47 21.48
DEdms -17 03 10.3 Vmag 6.48 VarFlag R Vmag H
RAdeg 131.839 DEdeg -17.0529 AstroRef * Plx 4.28
CCDM 08474-1703 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source S Qual A M HIP AB
Theta 141 Rho 0.121 HD 75098 BD BD-16 2589
CD CP Dm number -16 2589 VIred 0.73
SpType A2V R SpType Coord arcsec 2000 084721.48-170310.3
Hipparcos 2
HIP 43152 Sn 55 So 3 Nc 2
RArad 2.3010331577 DErad -0.2976284247 Plx 5.29 PmRA -13.34
PmDE -9.96 E RArad 0.56 E DErad 0.37 E Plx 0.62
E pmRA 0.79 E pmDE 0.4 Hpmag 6.6177 E Hpmag 0.001
SHp 0.009 VA 0 BV 0.679 E BV 0.006
VI 0.74
CCDM
Ccdm 08474-1703 RComp Comp A Note1
Note2 Discov num DRAs -2.35 DDEs -13.4
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.8 Sp G0 PmNote *
PmRA 9 PmDE -41 Dm number -16 2589 Cat1 BD
Name2 154636 Cat2 SAO HD 75098 M HD
ADS BDS A 6999 M ADS BDS N IDS IDS 08427S1641A
HIC 43152
 
 
08474-1703 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 084721.47-170310.5 Mag 7.73 Spectral class A2 (white)
Calc delta mag 0.63 Calc coord yes
CCDM
Ccdm 08474-1703 RComp Comp B Note1
Note2 Discov num BU 586 DRAs DDEs
R dRAs Year 1960 Theta 081 Rho 0.3
Obs 11 Vmag 9.3 Sp A2 PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD 75099 M HD
ADS BDS A 6999 M ADS BDS N N IDS IDS 08427S1641B
HIC 43152