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Doubles in session


Current system
02539-4436
I 1480
HD 18198


Nearby doubles
27' : 02563-4440
DON1060

43' : 02561-4401
UC 883

47' : 02507-4405
TNN 5

50' : 02508-4514
COO 16

51' : 02586-4444
DON 44

53' : 02542-4529
TSN 73

65' : 02483-4412
UC 814

66' : 02529-4331
UC 835

75' : 02482-4520
DON 41

75' : 02552-4549
CPO 113

80' : 02478-4350
UC 810

81' : 02576-4546
LDS 84

85' : 03009-4517
HDS 384

100' : 02590-4313
TVB 45

101' : 03005-4325
CPO 115

107' : 02452-4344
CPO 29AB

110' : 02508-4251
I 1143

111' : 02574-4252
KPP3507

114' : 02503-4250
BRT 652

116' : 02568-4246
HJ 3544

116' : 03046-4425
LDS3451

119' : 03040-4526
B 2079

121' : 02426-4454
DON 38

121' : 02511-4634
TDS2372

124' : 02467-4300
RSS 60

141' : 02418-4536
HDS 353



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.

02539-4436 I 1480 (HD 18198)

 
 
02h 53m 51.15s -44° 36' 20.4" P.A. 115.00 sep 0.4 mag 7.95,9.76 Sp K0:III+ dist. 70.97 pc (231.5 l.y.)
 
 
Coord 2000 02539-4436 Discov num I  1480 Comp Coord arcsec 2000 02 53 51.15 -44 36 20.4
Date first 1927 Date last 2019 Obs 19
Pa first 126 Pa last 114.8 P.A. Now (θ) 119°
Sep first 0.4 Sep last 0.422 Sep. Now (ρ) 0.471"
Mag pri 7.95 Mag sec 9.76 delta mag (ΔM) 1.81 Spectral class K0:III+ (yellow-orange)
Pri motion ra +102 Sec motion ra +102
Pri motion dec +060 Sec motion dec +060
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 18198 Constellation Eridanus SAO 216086 HIP 13498
Tycho2 7566-00827-1 Gaia DR2 4755117967402573056 HD 18198 GC 3490
CD CD-45 946 CP CP-45 288 Distance 70.97 Distance ly 231.5
 
 
ORBITAL ELEMENTS
 
 
Period (P)51.46y± 0.82 Periastron (T)2007.24y± 0.14 Semi-major axis (a)0.2967a± 0.0044
Eccentricity (e)0.774± 0.013 Inclination (i)49.5°± 1.9 Longitude of periastron (ω)16.2°± 1.7
Node (Ω)298.3°± 1.3 Notes ReferenceTok2016c
Equinox2000 Last observation2015 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 158.6 0.252
2001 163.1 0.223
2002 169.0 0.191
2003 177.3 0.159
2004 190.0 0.126
2005 211.3 0.095
2006 247.3 0.076
2007 295.6 0.069
2008 2.8 0.057
2009 58.0 0.088
2010 79.2 0.136
2011 89.4 0.181
2012 95.8 0.221
2013 100.2 0.258
2014 103.5 0.291
2015 106.3 0.320
2016 108.5 0.347
2017 110.5 0.370
2018 112.3 0.392
2019 113.8 0.411
2020 115.3 0.429
2021 116.6 0.445
2022 117.8 0.458
2023 119.0 0.471
2024 120.1 0.481
2025 121.2 0.490
2026 122.2 0.498
2027 123.2 0.504
2028 124.2 0.509
2029 125.2 0.513
2030 126.2 0.515


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


 
  


wds02539-4436a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 02539-4436 I 1480 (HD 18198) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Tok2016c orb+j Tokovinin, A. 2016AJ....152...11T
Tok2016c +St AJ 152, 11, 2016
 
 
DISCOVERER
 
 
idgroup discov author
1 I Innes, R.T.A.
5 I MNRAS 57, 533, 1897 (data also in I__1897b,
5 I I__1897c)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
02539-4436 I 1480 1991 14 140 0.4 7.95 9.76 K0:III+ D 025351.15-443620.4
02539-4436 I 1480 2010 15 89 0.2 7.95 9.76 K0:III+ D 025351.15-443620.4
02539-4436 I 1480 2015 17 106 0.3 7.95 9.76 K0:III+ O 025351.15-443620.4
02539-4436 I 1480 2017 18 112 0.4 7.95 9.76 K0:III+ O 025351.15-443620.4
02539-4436 I 1480 2019 19 115 0.4 7.95 9.76 K0:III+ O 025351.15-443620.4

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

 
 
WDS 02539-4436 I 1480 (HD 18198) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 02539-4436 I 1480 (HD 18198) : MEASURES
 
 
No records found.

 
 
WDS 02539-4436 (HD 18198) : VIRTUAL EYEPIECE
 
 

02539-4436 I 1480A mag 7.95 Sp K0:III 02539-4436 I 1480B sep 0.3 P.A. 123.00 mag 9.76 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 02539-4436 (HD 18198) : ALADIN DSS IMAGE @ 02h 53m 51.15s -44° 36' 20.4"
 
 
 
 
WDS 02539-4436 I 1480 (HD 18198) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

02539-4436 I 1480 distance=1' 02563-4440 DON1060 distance=27' 02561-4401 UC 883 distance=43' 02507-4405 TNN 5 distance=47' 02508-4514 COO 16 distance=50' 02586-4444 DON 44 distance=51' 02542-4529 TSN 73 distance=53' 02483-4412 UC 814 distance=65' 02529-4331 UC 835 distance=66' 02482-4520 DON 41 distance=75' 02552-4549 CPO 113 distance=75' 02478-4350 UC 810 distance=80' 02576-4546 LDS 84 distance=81' 03009-4517 HDS 384 distance=85' 02590-4313 TVB 45 distance=100' 03005-4325 CPO 115 distance=101' 02452-4344 CPO 29AB distance=107' 02452-4344 BRG 15Aa,Ab distance=107' 02508-4251 I 1143 distance=110' 02574-4252 KPP3507 distance=111' 02503-4250 BRT 652 distance=114' 02568-4246 HJ 3544 distance=116' 03046-4425 LDS3451 distance=116' 03040-4526 B 2079 distance=119' 02426-4454 DON 38 distance=121' 02511-4634 TDS2372 distance=121' 02467-4300 RSS 60 distance=124' 02507-4646 KPP1742AC distance=135' 02418-4536 HDS 353 distance=141' 03049-4559 TDS2437 distance=143' 02525-4707 KPP2810AB distance=152' 02486-4701 CPO 112 distance=155' 02482-4215 KPP2845 distance=155' 03087-4413 HDS 398 distance=161' 02410-4605 TDS2334 distance=163' 02583-4201 KPP2212 distance=164' 03069-4611 TDS2448 distance=168' 03066-4259 UC 948 distance=169' 02434-4232 BVD 65 distance=169' 03071-4252 DON 45 distance=178' 03075-4622 TDS2450 distance=179' 02444-4206 UC 794 distance=183' 02582-4734 TDS2398 distance=184' 02398-4254 B 2075AB distance=184' 02398-4254 DAM 397AC distance=184' 02486-4139 WIS 74 distance=187' 02435-4207 TDS2342 distance=188' 02583-4132 UC 918 distance=191' 03021-4728 TDS2421 distance=193' 03111-4535 UC 962 distance=193' 02527-4124 I 412 distance=194' 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 02539-4436 I 1480 115 0.4 1
Show 02563-4440 DON1060 351 5.6 27
Show 02561-4401 UC 883 304 13.1 43
Show 02507-4405 TNN 5 156 6.5 47
Show 02508-4514 COO 16 181 3.5 50
Show 02586-4444 DON 44 345 2.3 51
Show 02542-4529 TSN 73 46 124.9 53
Show 02483-4412 UC 814 163 64.8 65
Show 02529-4331 UC 835 292 23.3 66
Show 02482-4520 DON 41 104 0.9 75
Show 02552-4549 CPO 113 320 10.0 75
Show 02478-4350 UC 810 215 9.4 80
Show 02576-4546 LDS 84 154 16.3 81
Show 03009-4517 HDS 384 200 0.3 85
Show 02590-4313 TVB 45 229 6.0 100
Show 03005-4325 CPO 115 185 6.6 101
Show 02452-4344 CPO 29 AB 241 44.7 107
Show 02452-4344 BRG 15 Aa,Ab 37 0.4 107
Show 02508-4251 I 1143 351 0.4 110
Show 02574-4252 KPP3507 218 1.4 111
Show 02503-4250 BRT 652 159 3.4 114
Show 02568-4246 HJ 3544 193 4.2 116
Show 03046-4425 LDS3451 244 12.4 116
Show 03040-4526 B 2079 316 7.9 119
Show 02426-4454 DON 38 135 0.4 121
Show 02511-4634 TDS2372 124 0.5 121
Show 02467-4300 RSS 60 233 20.2 124
Show 02507-4646 KPP1742 AC 90 13.4 135
Show 02418-4536 HDS 353 351 0.2 141
Show 03049-4559 TDS2437 132 0.9 143
Show 02525-4707 KPP2810 AB 340 5.1 152
Show 02486-4701 CPO 112 180 4.1 155
Show 02482-4215 KPP2845 79 6.8 155
Show 03087-4413 HDS 398 89 0.1 161
Show 02410-4605 TDS2334 74 2.6 163
Show 02583-4201 KPP2212 293 18.3 164
Show 03069-4611 TDS2448 309 0.5 168
Show 03066-4259 UC 948 266 94.5 169
Show 02434-4232 BVD 65 330 32.1 169
Show 03071-4252 DON 45 271 1.7 178
Show 03075-4622 TDS2450 96 0.6 179
Show 02444-4206 UC 794 133 72.2 183
Show 02582-4734 TDS2398 274 1.1 184
Show 02398-4254 B 2075 AB 8 25.4 184
Show 02398-4254 DAM 397 AC 100 29.4 184
Show 02486-4139 WIS 74 154 788.2 187
Show 02435-4207 TDS2342 309 2.1 188
Show 02583-4132 UC 918 148 17.4 191
Show 03021-4728 TDS2421 258 0.4 193
Show 03111-4535 UC 962 243 79.0 193
Show 02527-4124 I 412 288 20.3 194

 
 
WDS 02539-4436 : COMPONENTS
 
 
  A
B pa=123.0°
sep=0.33"
 
 
02539-4436 A
 
 
Componente originario normalizzato AB Name HD 18198 Coord arcsec 2000 025351.15-443620.4 Mag 7.95
Spectral class K0:III (yellow-orange) PmRA 102.00 PmDE 60.0 SAO 216086
HIP 13498 Tycho2 7566-00827-1 HD 18198 GC 3490
CD CD-45 946 CP CP-45 288
Tycho2
Tycho2 7566-00827-1 Pflag RAmdeg 43.46312161 DEmdeg -44.60566775
PmRA 102.1 PmDE 59.7 E RAmdeg 5 E DEmdeg 5
E pmRA 1.1 E pmDE 1.1 EpRAm 1991.19 EpDEm 1991.22
Num 13 Q RAmdeg 1.4 Q DEmdeg 0.8 Q pmRA 1.4
Q pmDE 0.8 BTmag 8.502 E BTmag 0.015 VTmag 7.801
E VTmag 0.011 Prox 999 TYC T HIP 13498
CCDM AB RAdeg 43.46278806 DEdeg -44.60580722 EpRA 1990 1.62
EpDE 1990 1.58 E RAdeg 5.1 E DEdeg 5.1 Posflg P
Corr 0.2
SAO
SAO 216086 DelFlag RA1950 PmRA1950 0.0081
DE1950 PmDE1950 0.051 Vmag 7.9 SpType G0
Double code Source 70 CatNum 3490 DM CD-45 946
DMcomp BDsup HD 18198 M HD 0
GC 3490 RA1950rad 0.75064866 DE1950rad -0.78207299 PmRA2000 0.0086
PmDE2000 0.046
Hipparcos
Catalog H HIP 13498 Proxy H RAhms 02 53 51.06
DEdms -44 36 20.9 Vmag 7.7 VarFlag R Vmag H
RAdeg 43.4628 DEdeg -44.6058 AstroRef A Plx 14.84
CCDM 02539-4436 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 140 Rho 0.437 HD 18198 BD
CD CD-45 946 CP CP-45 288 Dm number -45 946 VIred 0.67
SpType K0:III+... R SpType Coord arcsec 2000 025351.06-443620.9
Hipparcos 2
HIP 13498 Sn 15 So 3 Nc 2
RArad 0.7585682337 DErad -0.7785180261 Plx 14.09 PmRA 106.79
PmDE 56.03 E RArad 0.58 E DErad 0.69 E Plx 0.73
E pmRA 0.63 E pmDE 0.85 Hpmag 7.8358 E Hpmag 0.0012
SHp 0.014 VA 0 BV 0.648 E BV 0.01
VI 0.71
CCDM
Ccdm 02539-4436 RComp Comp A Note1
Note2 Discov num DRAs -2.81 DDEs -21.0
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.3 Sp G0 PmNote *
PmRA 101 PmDE 54 Dm number -45 946 Cat1 CD
Name2 216086 Cat2 SAO HD 18198 M HD
ADS BDS M ADS BDS N IDS IDS 02502S4501A
HIC 13498
 
 
02539-4436 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 025351.18-443620.6 Mag 9.76 PmRA 102.00
PmDE 60.0 Calc delta mag 1.81 Calc coord yes
CCDM
Ccdm 02539-4436 RComp Comp B Note1
Note2 Discov num I 1480 DRAs DDEs
R dRAs Year 1946 Theta 145 Rho 0.3
Obs 5 Vmag 9.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 02502S4501B
HIC 13498