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Current system
04021-3429
BU 1004 AB
HD 25535


Nearby doubles
68' : 04030-3322
BRT1587

68' : 04049-3527
I 152AB

84' : 04085-3407
UC 1122

87' : 03589-3547
HDS 503

89' : 04049-3550
HJ 3622

90' : 04069-3323
HDS 520

94' : 03546-3442
JSP 49

104' : 04036-3611
WHI 5

104' : 03537-3420
WSP 98

107' : 04052-3250
TDS2745

110' : 03540-3343
TVB 59

116' : 03548-3542
TOK 82

121' : 04051-3623
HDS 517

124' : 03594-3627
TOI2486AB

124' : 03595-3629
LDS3547AB

125' : 04045-3229
COO 20

125' : 04083-3251
I 153

131' : 04120-3346
HJ 3627

136' : 04068-3227
HJ 3623

141' : 04014-3649
R 33

141' : 04026-3208
RST2330

144' : 04023-3206
DAM 399

144' : 04126-3331
TDS2786

145' : 04030-3205
DAM 400

146' : 03586-3648
HDS 502

146' : 04022-3203
TDS2724



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.

04021-3429 BU 1004 AB (HD 25535)

 
 
04h 02m 03.44s -34° 28' 55.7" P.A. 45.00 sep 1.1 mag 7.26,7.94 Sp G1/2V dist. 51.68 pc (168.58 l.y.)
 
 
Coord 2000 04021-3429 Discov num BU 1004 Comp AB Coord arcsec 2000 04 02 03.44 -34 28 55.7
Date first 1881 Date last 2021 Obs 95
Pa first 154 Pa last 44.9 P.A. Now (θ) 44.9°
Sep first 1.8 Sep last 1.102 Sep. Now (ρ) 1.102"
Mag pri 7.26 Mag sec 7.94 delta mag (ΔM) 0.68 Spectral class G1/2V (yellow)
Pri motion ra +374 Sec motion ra +374
Pri motion dec -012 Sec motion dec -012
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
04021-3429 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 25535 194709 04 02 03 -34 28 56 BU 1004 AB 2021 95 45 1.1 7.26 7.94 0.68 Y <===
Show 194709 04 02 03 -34 28 56 BU 1004 AC 2015 16 171 40.5 7.26 11.49 4.23
Show 194709 04 02 03 -34 28 56 LDS 3551 AD 2015 3 313 64.2 7.26 17.80 10.54
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 25535 Constellation Eridanus SAO 194709 HIP 18824
Tycho2 7033-01517-1 HD 25535 GC 4853 CD CD-34 1491
Distance 51.68 Distance ly 168.58
 
 
ORBITAL ELEMENTS
 
 
Period (P)393.4481y± 171.921 Periastron (T)2045.0551y± 10.2052 Semi-major axis (a)1.74415a± 0.34539
Eccentricity (e)0.50566± 0.13326 Inclination (i)136.38°± 9.411 Longitude of periastron (ω)63.95°± 14.492
Node (Ω)44.176°± 26.634 Notesn ReferenceIzm2019
Equinox Last observation2015 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 71.5 1.297
2001 70.4 1.289
2002 69.4 1.282
2003 68.3 1.274
2004 67.2 1.265
2005 66.1 1.257
2006 65.0 1.248
2007 63.9 1.239
2008 62.8 1.230
2009 61.6 1.220
2010 60.4 1.210
2011 59.2 1.200
2012 58.0 1.190
2013 56.8 1.179
2014 55.5 1.168
2015 54.2 1.156
2016 52.9 1.144
2017 51.6 1.132
2018 50.2 1.119
2019 48.8 1.106
2020 47.3 1.092
2021 45.9 1.078
2022 44.4 1.064
2023 42.8 1.049
2024 41.2 1.034
2025 39.5 1.018
2026 37.8 1.002
2027 36.1 0.986
2028 34.3 0.969
2029 32.4 0.951
2030 30.4 0.934


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


 
  


wds04021-3429c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 04021-3429 BU 1004 AB (HD 25535) : NOTES
 
 
discov_num notes refcode
BU 1004 HIP 18824. See Allen et al. (2000) for information on metallicity, AlC2000
LDS3551 age, galactic orbital parameters, etc.
BU 1004 AC: Optical pair, based on study of relative motion of the components
using the method of apparent motion parameters. Kiy2008
LDS3551 AD: Holberg et al. (2013): D at 64" is CPM, WD(DA9.9) Hbg2013
 
 
REFERENCES
 
 
refcode metd author reference
AlC2000 Po - Allen, C., Poveda, A., & Herrera, M 2000A&A...356..529A
AlC2000 A&A 356, 529, 2000
Hbg2013 not - Holberg, J. B., Oswalt, T. D., & Sion, E. M. 2013MNRAS.435.2077H
Hbg2013 MNRAS 435, 2077, 2013
Izm2019 orb u Izmailov, I.S. 2019AstL...45...30I
Izm2019 Ast. Lett. 45, 30, 2019
Izm2019 (Orbital elements from weighted solutions used when available (Table 2),
Izm2019 unweighted elements (Table 1) used for remaining 29 systems.)
Kiy2008 - Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S. 2008SvAL...32..405K
Kiy2008 SvAL 34, 405, 2008
 
 
DISCOVERER
 
 
idgroup discov author
1 BU Burnham, S.W. (BU 1 - 81)
179 LDS Luyten p.m. catalog (from additional DD list)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
04021-3429 BU 1004 AB 2002 62 70 1.2 7.26 7.94 G1/2V NOD 040203.44-342855.7
04021-3429 BU 1004 AB 2008 64 62 1.2 7.26 7.94 G1/2V NOD 040203.44-342855.7
04021-3429 BU 1004 AB 2009 67 60 1.2 7.26 7.94 G1/2V NOD 040203.44-342855.7
04021-3429 BU 1004 AB 2010 69 59 1.2 7.26 7.94 G1/2V NOD 040203.44-342855.7
04021-3429 BU 1004 AB 2013 70 57 1.2 7.26 7.94 G1/2V NO 040203.44-342855.7
04021-3429 BU 1004 AB 2014 73 55 1.2 7.26 7.94 G1/2V NO 040203.44-342855.7
04021-3429 BU 1004 AB 2015 75 53 1.2 7.26 7.94 G1/2V NO 040203.44-342855.7
04021-3429 BU 1004 AB 2017 78 51 1.1 7.26 7.94 G1/2V NO 040203.44-342855.7
04021-3429 BU 1004 AB 2018 82 49 1.1 7.26 7.94 G1/2V NO 040203.44-342855.7
04021-3429 BU 1004 AB 2019 86 48 1.1 7.26 7.94 G1/2V NO 040203.44-342855.7
04021-3429 BU 1004 AB 2020 91 46 1.1 7.26 7.94 G1/2V NO 040203.44-342855.7
04021-3429 BU 1004 AB 2021 95 45 1.1 7.26 7.94 G1/2V NO 040203.44-342855.7

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

 
 
WDS 04021-3429 BU 1004 AB (HD 25535) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 04021-3429 BU 1004 AB (HD 25535) : MEASURES
 
 
No records found.

 
 
WDS 04021-3429 (HD 25535) : VIRTUAL EYEPIECE
 
 

04021-3429 BU 1004A mag 7.26 Sp G1/2V 04021-3429 BU 1004B sep 1.0 P.A. 39.40 mag 7.94 04021-3429 BU 1004C sep 40.3 P.A. 172.80 mag 11.49 04021-3429 LDS3551D sep 58.5 P.A. 318.90 mag 17.8 Sp DA9.9 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 04021-3429 (HD 25535) : ALADIN DSS IMAGE @ 04h 02m 03.44s -34° 28' 55.7"
 
 
 
 
WDS 04021-3429 BU 1004 AB (HD 25535) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

04021-3429 BU 1004AB distance=0' 04030-3322 BRT1587 distance=68' 04049-3527 I 152AB distance=68' 04049-3527 CHR 224AC distance=68' 04049-3527 CHR 224BC distance=68' 04085-3407 UC 1122 distance=84' 03589-3547 HDS 503 distance=87' 04049-3550 HJ 3622 distance=89' 04069-3323 HDS 520 distance=90' 03546-3442 JSP 49 distance=94' 03566-3313 TOK 820Aa,Ab distance=102' 04036-3611 WHI 5 distance=104' 03537-3420 WSP 98 distance=104' 04052-3250 TDS2745 distance=107' 03540-3343 TVB 59 distance=110' 03548-3542 TOK 82 distance=116' 04051-3623 HDS 517 distance=121' 03594-3627 TOI2486AB distance=124' 03594-3627 TOI2486AC distance=124' 03595-3629 LDS3547AB distance=124' 03595-3629 LDS3547AD distance=124' 04045-3229 COO 20 distance=125' 04083-3251 I 153 distance=125' 04120-3346 HJ 3627 distance=131' 04068-3227 HJ 3623 distance=136' 04014-3649 R 33 distance=141' 04026-3208 RST2330 distance=141' 04023-3206 DAM 399 distance=144' 04126-3331 TDS2786 distance=144' 04030-3205 DAM 400 distance=145' 03586-3648 HDS 502 distance=146' 04022-3203 TDS2724 distance=146' 03523-3303 KPP 765 distance=149' 03565-3642 BAS 2 distance=149' 04111-3252 UC 1128AC distance=149' 04002-3659 UC 1097 distance=152' 04067-3649 UC 1116 distance=152' 04000-3158 LDS3548 distance=154' 03500-3338 RST2325 distance=158' 04014-3706 HJ 3614 distance=159' 04123-3605 NSN 204 distance=159' 03495-3504 LDS3537 distance=159' 04006-3707 R 32 distance=159' 04125-3609 HJ 3628 distance=163' 04136-3604 UC 1135 distance=171' 03484-3502 UC 1067 distance=172' 03495-3301 RSS 69 distance=180' 04162-3324 KPP3561 distance=188' 03470-3352 TDS2654 distance=191' 04028-3115 HDS 511 distance=195' 04127-3206 JSP 53 distance=196' 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 04021-3429 BU 1004 AB 45 1.1
Show 04021-3429 BU 1004 AC 171 40.5
Show 04021-3429 LDS3551 AD 313 64.2
Show 04030-3322 BRT1587 269 2.4 68
Show 04049-3527 I 152 AB 74 1.0 68
Show 04049-3527 CHR 224 AC 75 1.0 68
Show 04049-3527 CHR 224 BC 110 0.3 68
Show 04085-3407 UC 1122 23 30.6 84
Show 03589-3547 HDS 503 58 0.4 87
Show 04049-3550 HJ 3622 113 10.2 89
Show 04069-3323 HDS 520 352 1.8 90
Show 03546-3442 JSP 49 247 4.1 94
Show 03566-3313 TOK 820 Aa,Ab 180 0.1 102
Show 04036-3611 WHI 5 145 1.1 104
Show 03537-3420 WSP 98 225 12.2 104
Show 04052-3250 TDS2745 310 0.6 107
Show 03540-3343 TVB 59 151 2.7 110
Show 03548-3542 TOK 82 291 17.4 116
Show 04051-3623 HDS 517 4 7.1 121
Show 03594-3627 TOI2486 AB 242 1.6 124
Show 03594-3627 TOI2486 AC 39 23.8 124
Show 03595-3629 LDS3547 AB 39 23.8 124
Show 03595-3629 LDS3547 AD 242 1.6 124
Show 04045-3229 COO 20 353 8.8 125
Show 04083-3251 I 153 348 1.2 125
Show 04120-3346 HJ 3627 277 25.7 131
Show 04068-3227 HJ 3623 268 5.2 136
Show 04014-3649 R 33 256 16.7 141
Show 04026-3208 RST2330 123 2.7 141
Show 04023-3206 DAM 399 165 8.8 144
Show 04126-3331 TDS2786 164 0.6 144
Show 04030-3205 DAM 400 229 5.0 145
Show 03586-3648 HDS 502 249 0.2 146
Show 04022-3203 TDS2724 330 0.4 146
Show 03523-3303 KPP 765 142 6.6 149
Show 03565-3642 BAS 2 73 1.0 149
Show 04111-3252 UC 1128 AC 266 44.4 149
Show 04002-3659 UC 1097 71 21.3 152
Show 04067-3649 UC 1116 109 44.6 152
Show 04000-3158 LDS3548 276 10.2 154
Show 03500-3338 RST2325 91 1.7 158
Show 04014-3706 HJ 3614 53 13.9 159
Show 04123-3605 NSN 204 241 6.4 159
Show 03495-3504 LDS3537 184 2.7 159
Show 04006-3707 R 32 188 29.3 159
Show 04125-3609 HJ 3628 50 49.7 163
Show 04136-3604 UC 1135 52 13.4 171
Show 03484-3502 UC 1067 210 60.0 172
Show 03495-3301 RSS 69 135 12.8 180
Show 04162-3324 KPP3561 49 2.0 188
Show 03470-3352 TDS2654 307 0.8 191

 
 
WDS 04021-3429 : COMPONENTS
 
 
  A B C
B pa=39.4°
sep=1.01"
 
C pa=172.8°
sep=40.31"
pa=173.8°
sep=41.01"
 
D pa=318.9°
sep=58.52"
pa=317.9°
sep=58.36"
pa=332.7°
sep=94.69"
 
 
04021-3429 A
 
 
Name HD 25535 Coord arcsec 2000 040203.44-342855.7 Mag 7.26 Spectral class G1/2V (yellow)
PmRA 374.00 PmDE -12.0 SAO 194709 HIP 18824
Tycho2 7033-01517-1 HD 25535 GC 4853 CD CD-34 1491
Tycho2
Tycho2 7033-01517-1 Pflag P RAmdeg 60.51447989 DEmdeg -34.48213444
PmRA 373.5 PmDE -12.3 E RAmdeg 5 E DEmdeg 4
E pmRA 2.1 E pmDE 2.1 EpRAm 1991.55 EpDEm 1991.63
Num 7 Q RAmdeg 1.4 Q DEmdeg 0.8 Q pmRA 1.4
Q pmDE 0.8 BTmag 7.939 E BTmag 0.016 VTmag 7.257
E VTmag 0.010 Prox 14 TYC T HIP 18824
CCDM A RAdeg 60.51330861 DEdeg -34.48212306 EpRA 1990 1.64
EpDE 1990 1.69 E RAdeg 4.5 E DEdeg 4.2 Posflg D
Corr 0.0
SAO
SAO 194709 DelFlag RA1950 PmRA1950 0.0307
DE1950 PmDE1950 0.009 Vmag 6.7 SpType G0
Double code Source 70 CatNum 4853 DM CD-34 1491
DMcomp BDsup HD 25535 M HD 0
GC 4853 RA1950rad 1.0477919 DE1950rad -0.60422818 PmRA2000 0.0311
PmDE2000 0.005
Hipparcos
Catalog H HIP 18824 Proxy H RAhms 04 02 03.18
DEdms -34 28 55.6 Vmag 6.73 VarFlag R Vmag G
RAdeg 60.5133 DEdeg -34.4821 AstroRef A Plx 19.15
CCDM 04021-3429 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 80 Rho 1.358 HD 25535 BD
CD CD-34 1491 CP Dm number -34 1491 VIred 0.7
SpType G1/G2V R SpType Coord arcsec 2000 040203.18-342855.6
Hipparcos 2
HIP 18824 Sn 15 So 3 Nc 2
RArad 1.0561556012 DErad -0.6018265661 Plx 19.35 PmRA 379.84
PmDE -15.67 E RArad 0.4 E DErad 0.54 E Plx 0.63
E pmRA 0.41 E pmDE 0.63 Hpmag 6.8645 E Hpmag 0.0011
SHp 0.009 VA 0 BV 0.628 E BV 0.004
VI 0.7
CCDM
Ccdm 04021-3429 RComp Comp A Note1
Note2 Discov num DRAs -2.47 DDEs 3.9
R dRAs 10 Year Theta Rho
Obs 3 Vmag 7.2 Sp G0 PmNote *
PmRA 383 PmDE -10 Dm number -34 1491 Cat1 CD
Name2 194709 Cat2 SAO HD 25535 M HD
ADS BDS B 2016 M ADS BDS N IDS IDS 03582S3446A
HIC 18824
 
 
04021-3429 B
 
 
Coord arcsec 2000 040203.49-342854.9 Mag 7.94 PmRA 374.00 PmDE -12.0
Tycho2 7033-01517-2 Calc delta mag 0.68 Calc coord yes
Tycho2
Tycho2 7033-01517-2 Pflag P RAmdeg 60.51447989 DEmdeg -34.48213444
PmRA 373.5 PmDE -12.3 E RAmdeg 5 E DEmdeg 4
E pmRA 2.1 E pmDE 2.1 EpRAm 1991.55 EpDEm 1991.63
Num 7 Q RAmdeg 1.4 Q DEmdeg 0.8 Q pmRA 1.4
Q pmDE 0.8 BTmag 8.642 E BTmag 0.017 VTmag 7.939
E VTmag 0.011 Prox 14 TYC HIP 18824
CCDM B RAdeg 60.51375944 DEdeg -34.48205861 EpRA 1990 1.65
EpDE 1990 1.68 E RAdeg 5.8 E DEdeg 5.4 Posflg D
Corr 0.0
CCDM
Ccdm 04021-3429 RComp Comp B Note1
Note2 Discov num BU 1004 DRAs DDEs
R dRAs Year 1959 Theta 106 Rho 1.5
Obs 99 Vmag 7.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B 2016 M ADS BDS N IDS IDS 03582S3446B
HIC 18824
 
 
04021-3429 C
 
 
Coord arcsec 2000 040203.85-342935.7 Mag 11.49 PmRA 70.00 PmDE 4.0
Calc delta mag 4.23 Calc coord yes
CCDM
Ccdm 04021-3429 RComp Comp C Note1
Note2 Discov num BU 1004 DRAs DDEs
R dRAs Year 1955 Theta 149 Rho 47.9
Obs 7 Vmag 11.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B 2016 M ADS BDS N IDS IDS 03582S3446C
HIC
 
 
04021-3429 D
 
 
Coord arcsec 2000 040200.33-342811.6 Mag 17.8 Spectral class DA9.9 (white dwarf) Calc delta mag 10.54
Calc coord yes