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Current system
02305-4342
ELP 1 Aa,Ab


Nearby doubles
29' : 02302-4315
HDS 326

31' : 02288-4407
B 2557

61' : 02344-4259
HJ 3510

88' : 02351-4230
HJ 3513

91' : 02223-4324
LDS3377

97' : 02268-4215
LIT 7

102' : 02221-4259
I 1141

107' : 02351-4518
BRT 650

112' : 02289-4153
B 2558

113' : 02398-4254
B 2075AB

116' : 02349-4157
DON 36

118' : 02197-4350
TDS2203

125' : 02359-4533
RST 54

149' : 02426-4454
DON 38

153' : 02288-4613
LDS 76

155' : 02175-4244
UC 711

156' : 02180-4230
UC 713

157' : 02398-4144
TDS2324

158' : 02434-4232
BVD 65

160' : 02452-4344
CPO 29AB

166' : 02418-4536
HDS 353

166' : 02164-4448
KPP2844

171' : 02435-4207
TDS2342

173' : 02329-4633
UC 757

174' : 02285-4051
RST1240

176' : 02383-4110
HDS 344



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.

02305-4342 ELP 1 Aa,Ab

 
 
02h 30m 32.41s -43° 42' 23.3" P.A. 66.00 sep 0.1 mag 10.20,11.10 Sp K5Ve
 
 
Coord 2000 02305-4342 Discov num ELP   1 Comp Aa,Ab Coord arcsec 2000 02 30 32.41 -43 42 23.3
Date first 2006 Date last 2021 Obs 14
Pa first 295 Pa last 66.1 P.A. Now (θ) 28.1°
Sep first 0.1 Sep last 0.115 Sep. Now (ρ) 0.099"
Mag pri 10.20 Mag sec 11.10 delta mag (ΔM) 0.9 Spectral class K5Ve (yellow-orange)
Pri motion ra +080 Sec motion ra
Pri motion dec -013 Sec motion dec
Notes O R (Orbital solution, Red magnitudes)
This double is physical.
 
 
02305-4342 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 02 30 32 -43 42 23 ELP 1 Aa,Ab 2021 14 66 0.1 10.20 11.10 0.90 Y <===
Show 02 30 32 -43 42 23 SKF 1427 AB 2015 8 120 173.0 10.31 11.92 1.61
Triple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Eridanus Tycho2 7558-00655-1 Gaia DR2 4946633857666189952
 
 
ORBITAL ELEMENTS
 
 
Period (P)14.42y± 1.36 Periastron (T)2020y± 5.2 Semi-major axis (a)0.13a± 0.008
Eccentricity (e)0.032± 0.017 Inclination (i)139.7°± 4.1 Longitude of periastron (ω)14.7°± 3.6
Node (Ω)122.3°± 5.5 Notes ReferenceTok2020e
Equinox Last observation Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 256.9 0.114
2001 229.0 0.102
2002 197.2 0.101
2003 167.7 0.110
2004 143.7 0.121
2005 122.9 0.126
2006 102.0 0.121
2007 77.6 0.109
2008 47.4 0.099
2009 14.5 0.101
2010 346.2 0.113
2011 323.9 0.127
2012 305.2 0.134
2013 287.1 0.131
2014 266.8 0.120
2015 241.5 0.106
2016 210.7 0.100
2017 179.4 0.105
2018 153.2 0.117
2019 131.4 0.125
2020 111.0 0.124
2021 88.5 0.114
2022 60.8 0.102
2023 28.1 0.099
2024 357.3 0.107
2025 332.7 0.122
2026 312.9 0.132
2027 294.8 0.133
2028 275.8 0.125
2029 252.8 0.112
2030 224.1 0.101


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


 
  


wds02305-4342b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 02305-4342 ELP 1 Aa,Ab : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Tok2020e St j Tokovinin, A., Mason, B.D., Mendez, R.A., Costa, E. & Horch, E.P. 2020AJ....160....7T
Tok2020e +orb AJ 160, 7, 2020
 
 
DISCOVERER
 
 
idgroup discov author
1 ELP Elliott, P., Huelamo, N., Bouy, H., Bayo, A., Melo, C.H.F., Torres, C.A.O.,
1 ELP Sterzik, M.F., Quast, G.R., Chauvin, G., & Barrado, D.
4 SKF Skiff, B.A.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
02305-4342 ELP 1 Aa,Ab 2015 3 219 0.1 10.20 11.10 K5Ve R 023032.41-434223.3
02305-4342 ELP 1 Aa,Ab 2017 6 160 0.1 10.20 11.10 K5Ve R 023032.41-434223.3
02305-4342 ELP 1 Aa,Ab 2018 9 136 0.1 10.20 11.10 K5Ve O R 023032.41-434223.3
02305-4342 ELP 1 Aa,Ab 2019 11 112 0.1 10.20 11.10 K5Ve O R 023032.41-434223.3
02305-4342 ELP 1 Aa,Ab 2020 12 93 0.1 10.20 11.10 K5Ve O R 023032.41-434223.3
02305-4342 ELP 1 Aa,Ab 2021 14 66 0.1 10.20 11.10 K5Ve O R 023032.41-434223.3

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

 
 
WDS 02305-4342 ELP 1 Aa,Ab : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 02305-4342 ELP 1 Aa,Ab : MEASURES
 
 
No records found.

 
 
WDS 02305-4342 : VIRTUAL EYEPIECE
 
 

02305-4342 SKF1427A mag 10.31 Sp K5Ve 02305-4342 ELP 1Ab sep 0.1 P.A. 58.50 mag 11.1 02305-4342 SKF1427B sep 138.4 P.A. 128.40 mag 11.92 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 02305-4342 : ALADIN DSS IMAGE @ 02h 30m 32.41s -43° 42' 23.3"
 
 
 
 
WDS 02305-4342 ELP 1 Aa,Ab : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

02305-4342 ELP 1Aa,Ab distance=0' 02302-4315 HDS 326 distance=29' 02288-4407 B 2557 distance=31' 02344-4259 HJ 3510 distance=61' 02351-4230 HJ 3513 distance=88' 02223-4324 LDS3377 distance=91' 02268-4215 LIT 7 distance=97' 02221-4259 I 1141 distance=102' 02351-4518 BRT 650 distance=107' 02289-4153 B 2558 distance=112' 02398-4254 B 2075AB distance=113' 02398-4254 DAM 397AC distance=113' 02349-4157 DON 36 distance=116' 02197-4350 TDS2203 distance=118' 02359-4533 RST 54 distance=125' 02426-4454 DON 38 distance=149' 02288-4613 LDS 76 distance=153' 02175-4244 UC 711 distance=155' 02180-4230 UC 713 distance=156' 02398-4144 TDS2324 distance=157' 02434-4232 BVD 65 distance=158' 02452-4344 CPO 29AB distance=160' 02452-4344 BRG 15Aa,Ab distance=160' 02418-4536 HDS 353 distance=166' 02164-4448 KPP2844 distance=166' 02435-4207 TDS2342 distance=171' 02329-4633 UC 757 distance=173' 02285-4051 RST1240 distance=174' 02383-4110 HDS 344 distance=176' 02312-4046 RST3368 distance=177' 02202-4123 B 1433 distance=180' 02444-4206 UC 794 distance=181' 02410-4605 TDS2334 distance=182' 02467-4300 RSS 60 distance=182' 02478-4350 UC 810 distance=188' 02330-4034 KPP3493 distance=191' 02483-4412 UC 814 distance=195' 02185-4114 KPP1401 distance=200' 02260-4029 TDS2246 distance=200' 02372-4036 WG 14 distance=201' 02164-4558 KPP1255 distance=203' 02129-4508 TDS2159 distance=208' 02295-4014 TDS2266 distance=209' 02137-4205 TDS2170 distance=209' 02361-4705 DAM1291A,BC distance=211' 02361-4705 TDS 88BC distance=212' 02297-4714 RST2281AB distance=212' 02482-4520 DON 41 distance=213' 02482-4215 KPP2845 distance=213' 02315-4001 TOI2417 distance=222' 02503-4250 BRT 652 distance=222' 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 02305-4342 SKF1427 AB 120 173.0
Show 02305-4342 ELP 1 Aa,Ab 66 0.1
Show 02302-4315 HDS 326 8 11.1 29
Show 02288-4407 B 2557 265 12.2 31
Show 02344-4259 HJ 3510 11 9.1 61
Show 02351-4230 HJ 3513 161 14.7 88
Show 02223-4324 LDS3377 113 2.3 91
Show 02268-4215 LIT 7 237 14.6 97
Show 02221-4259 I 1141 98 0.5 102
Show 02351-4518 BRT 650 91 3.9 107
Show 02289-4153 B 2558 75 18.5 112
Show 02398-4254 B 2075 AB 8 25.4 113
Show 02398-4254 DAM 397 AC 100 29.4 113
Show 02349-4157 DON 36 110 0.3 116
Show 02197-4350 TDS2203 119 0.5 118
Show 02359-4533 RST 54 178 0.8 125
Show 02426-4454 DON 38 135 0.4 149
Show 02288-4613 LDS 76 21 5.7 153
Show 02175-4244 UC 711 143 36.2 155
Show 02180-4230 UC 713 32 24.9 156
Show 02398-4144 TDS2324 223 1.9 157
Show 02434-4232 BVD 65 330 32.1 158
Show 02452-4344 CPO 29 AB 241 44.7 160
Show 02452-4344 BRG 15 Aa,Ab 37 0.4 160
Show 02418-4536 HDS 353 351 0.2 166
Show 02164-4448 KPP2844 281 2.8 166
Show 02435-4207 TDS2342 309 2.1 171
Show 02329-4633 UC 757 205 45.4 173
Show 02285-4051 RST1240 249 0.3 174
Show 02383-4110 HDS 344 298 0.2 176
Show 02312-4046 RST3368 339 0.4 177
Show 02202-4123 B 1433 160 6.5 180
Show 02444-4206 UC 794 133 72.2 181
Show 02410-4605 TDS2334 74 2.6 182
Show 02467-4300 RSS 60 233 20.2 182
Show 02478-4350 UC 810 215 9.4 188
Show 02330-4034 KPP3493 92 2.2 191
Show 02483-4412 UC 814 163 64.8 195
Show 02185-4114 KPP1401 10 10.5 200
Show 02260-4029 TDS2246 28 1.9 200
Show 02372-4036 WG 14 252 3.0 201
Show 02164-4558 KPP1255 80 9.6 203
Show 02129-4508 TDS2159 314 0.8 208
Show 02295-4014 TDS2266 200 0.7 209
Show 02137-4205 TDS2170 346 0.7 209
Show 02361-4705 DAM1291 A,BC 176 31.1 211
Show 02361-4705 TDS 88 BC 338 1.8 212
Show 02297-4714 RST2281 AB 269 1.4 212
Show 02482-4520 DON 41 104 0.9 213
Show 02482-4215 KPP2845 79 6.8 213
Show 02315-4001 TOI2417 285 1.9 222

 
 
WDS 02305-4342 : COMPONENTS
 
 
  A Ab
Ab pa=58.5°
sep=0.09"
 
B pa=128.4°
sep=138.45"
pa=128.4°
sep=138.42"
 
 
02305-4342 A
 
 
Coord arcsec 2000 023032.41-434223.3 Mag 10.31 Spectral class K5Ve (yellow-orange) PmRA 80.00
PmDE -13.0 Tycho2 7558-00655-1
Tycho2
Tycho2 7558-00655-1 Pflag RAmdeg 37.63503356 DEmdeg -43.70647050
PmRA 80.5 PmDE -14.9 E RAmdeg 29 E DEmdeg 32
E pmRA 1.6 E pmDE 1.6 EpRAm 1977.69 EpDEm 1980.34
Num 4 Q RAmdeg 0.6 Q DEmdeg 0.5 Q pmRA 0.6
Q pmDE 0.6 BTmag 11.794 E BTmag 0.082 VTmag 10.537
E VTmag 0.046 Prox 999 TYC T HIP
CCDM RAdeg 37.63477528 DEdeg -43.70643667 EpRA 1990 1.54
EpDE 1990 1.53 E RAdeg 37.9 E DEdeg 39.4 Posflg
Corr 0.1
 
 
02305-4342 Ab
 
 
Coord arcsec 2000 023032.42-434223.3 Mag 11.1 Calc delta mag 0.9 Calc coord yes
 
 
02305-4342 B
 
 
Coord arcsec 2000 023042.42-434349.3 Mag 11.92 PmRA 83.00 PmDE -9.0
Calc delta mag 1.72 Calc coord yes