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Doubles in session


Current system
01398-5612
DUN 5
p Eri


Nearby doubles
16' : 01403-5557
UC 600

28' : 01384-5546
WSP 97AB

32' : 01411-5542
UC 602

49' : 01435-5649
UC 613

64' : 01472-5627
HU 1555

64' : 01339-5531
RST1221

65' : 01377-5714
KRV 54

67' : 01342-5700
HU 1345

70' : 01460-5658
FAL 2

77' : 01459-5515
RST 40

79' : 01476-5529
NSN 209

80' : 01433-5458
RST 39

85' : 01430-5451
SLR 3

85' : 01362-5731
I 714

113' : 01432-5801
HDS 229AB

116' : 01328-5752
UC 576

117' : 01270-5702
TDS1880

120' : 01261-5650
BRT2529

121' : 01430-5414
HU 1554

126' : 01518-5458
HDS 253AB

133' : 01394-5824
TDS1943

136' : 01420-5357
BRT2018

144' : 01389-5835
HU 1553

146' : 01535-5443
TDS2042

147' : 01568-5653
RST 42

148' : 01572-5550
SKF1516



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.

01398-5612 DUN 5 (p Eri)

 
 
01h 39m 47.83s -56° 11' 36.0" P.A. 185.00 sep 11.3 mag 5.78,5.90 Sp K0V+K5V dist. 7.82 pc (25.51 l.y.)
 
 
Coord 2000 01398-5612 Discov num DUN   5 Comp Coord arcsec 2000 01 39 47.83 -56 11 36.0
Date first 1825 Date last 2024 Obs 178
Pa first 343 Pa last 184.6 P.A. Now (θ) 184.6°
Sep first 2.5 Sep last 11.321 Sep. Now (ρ) 11.321"
Mag pri 5.78 Mag sec 5.90 delta mag (ΔM) 0.12 Spectral class K0V+K5V (yellow-orange/yellow-orange)
Pri motion ra +262 Sec motion ra +309
Pri motion dec +015 Sec motion dec +011
Notes N O T (See Notes, Orbital solution, Parallax indicates physical)
rPM=0.153 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name p Eri Constellation Eridanus SAO 232490 HIP 7751
Tycho2 8478-01394-2 Gaia DR2 4911306239828325632 HD 10360 HR 486
GC 2030 CD CD-56 328 CP CP-56 329 Distance 7.82
Distance ly 25.51
 
 
ORBITAL ELEMENTS
 
 
Period (P)467.699574y Periastron (T)1806.598955y Semi-major axis (a)7.95563a
Eccentricity (e)0.462287 Inclination (i)135.4299° Longitude of periastron (ω)18.0095°
Node (Ω)13.8831° Notesn ReferenceKpp2020f
Equinox Last observation Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 190.4 11.358
2001 190.1 11.368
2002 189.9 11.377
2003 189.7 11.385
2004 189.4 11.393
2005 189.2 11.401
2006 189.0 11.408
2007 188.7 11.415
2008 188.5 11.421
2009 188.3 11.426
2010 188.0 11.431
2011 187.8 11.436
2012 187.5 11.440
2013 187.3 11.444
2014 187.1 11.447
2015 186.8 11.450
2016 186.6 11.452
2017 186.4 11.453
2018 186.1 11.455
2019 185.9 11.455
2020 185.7 11.455
2021 185.4 11.455
2022 185.2 11.455
2023 185.0 11.453
2024 184.7 11.452
2025 184.5 11.449
2026 184.3 11.447
2027 184.0 11.444
2028 183.8 11.440
2029 183.6 11.436
2030 183.3 11.432
2031 183.1 11.427
2032 182.8 11.421
2033 182.6 11.415
2034 182.4 11.409
2035 182.1 11.402
2036 181.9 11.394
2037 181.7 11.387
2038 181.4 11.378
2039 181.2 11.370
2040 181.0 11.361
2041 180.7 11.351
2042 180.5 11.341
2043 180.2 11.330
2044 180.0 11.319
2045 179.8 11.308
2046 179.5 11.296
2047 179.3 11.284
2048 179.0 11.271
2049 178.8 11.257
2050 178.5 11.244


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds01398-5612e.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
WDS 01398-5612 DUN 5 (p Eri) : NOTES
 
 
discov_num notes refcode
DUN 5 Some measures have been corrected by Andrew James (personal
correspondance). Note that this is p Eri, not rho Eri
(03027-0741BU 11).
Measures of 1947.60 and 1947.84 made by triangulation of multiple Der9999
measures.
 
 
REFERENCES
 
 
refcode metd author reference
Der9999 Po - ...................
Der9999 Unpublished, manuscript or reference not found.
Kpp2020f Hg+ j Knapp, W.R.A. 2020JDSO...16..229K
Kpp2020f +C JDSO 16, 229, 2020
Kpp2020f
 
 
DISCOVERER
 
 
discov author
DUN Dunlop, J.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
01398-5612 DUN 5 2002 159 190 11.4 5.78 5.90 K0V K5V -56 329 NOD 013947.55-561136.2
01398-5612 DUN 5 2009 161 188 11.6 5.78 5.90 K0V K5V -56 329 NOD 013947.55-561136.2
01398-5612 DUN 5 2013 164 187 11.4 5.78 5.90 K0V K5V -56 329 NO 013947.55-561136.2
01398-5612 DUN 5 2016 167 186 11.5 5.78 5.90 K0V+K5V -56 329 NO 013947.83-561136.0
01398-5612 DUN 5 2017 173 187 11.4 5.78 5.90 K0V+K5V -56 329 NO 013947.83-561136.0
01398-5612 DUN 5 2019 176 186 11.3 5.78 5.90 K0V+K5V -56 329 NO 013947.83-561136.0
01398-5612 DUN 5 2024 178 185 11.3 5.78 5.90 K0V+K5V -56 329 NO T 013947.83-561136.0

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

 
 
WDS 01398-5612 DUN 5 (p Eri) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 01398-5612 DUN 5 (p Eri) : MEASURES
 
 
No records found.

 
 
WDS 01398-5612 (p Eri) : VIRTUAL EYEPIECE
 
 

01398-5612 DUN 5A mag 5.78 Sp K0V 01398-5612 DUN 5B sep 11.3 P.A. 184.60 mag 5.9 Sp K5V 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 01398-5612 (p Eri) : ALADIN DSS IMAGE @ 01h 39m 47.83s -56° 11' 36.0"
 
 
 
 
WDS 01398-5612 DUN 5 (p Eri) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

01398-5612 DUN 5 distance=0' 02165-5131 SHY 130DF distance=16' 01403-5557 UC 600 distance=16' 01384-5546 WSP 97AB distance=28' 01411-5542 UC 602 distance=32' 01435-5649 UC 613 distance=49' 01472-5627 HU 1555 distance=64' 01339-5531 RST1221 distance=64' 01377-5714 KRV 54 distance=65' 01342-5700 HU 1345 distance=67' 01460-5658 FAL 2 distance=70' 01459-5515 RST 40 distance=77' 01476-5529 NSN 209 distance=79' 01433-5458 RST 39 distance=80' 01430-5451 SLR 3 distance=85' 01362-5731 I 714 distance=85' 01432-5801 HDS 229AB distance=113' 01432-5801 SKF 417AC distance=113' 01328-5752 UC 576 distance=116' 01270-5702 TDS1880 distance=117' 01261-5650 BRT2529 distance=120' 01430-5414 HU 1554 distance=121' 01518-5458 HDS 253AB distance=126' 01518-5458 SHY 128AC distance=126' 01394-5824 TDS1943 distance=133' 01420-5357 BRT2018 distance=136' 01389-5835 HU 1553 distance=144' 01535-5443 TDS2042 distance=146' 01568-5653 RST 42 distance=147' 01572-5550 SKF1516 distance=148' 01228-5712 WIS 29 distance=153' 01234-5729 CVN 35 distance=156' 01396-5336 HDS 219 distance=157' 01465-5340 TSN9001Ba,Bb distance=163' 01589-5652 LDS 63 distance=163' 01430-5329 KPP1069 distance=166' 01388-5327 DUN 4 distance=166' 01231-5444 LDS 47 distance=168' 01212-5505 RST1215 distance=171' 01205-5720 HJ 3430AB distance=174' 01205-5720 TOK 454AC distance=174' 01429-5908 JSP 24 distance=178' 01220-5759 HDS 177 distance=181' 01357-5312 HJ 3449 distance=184' 01316-5322 I 264AB distance=184' 01316-5322 HJ 3444AB,C distance=184' 01213-5434 GKM9022Aa,Ab distance=186' 01213-5434 GKM9022AB distance=186' 01231-5411 HDS 179 distance=187' 01314-5907 HLN 2 distance=189' 01341-5919 HJ 3446 distance=193' 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 01398-5612 DUN 5 185 11.3 0
Show 02165-5131 SHY 130 DF 244 999.9 16
Show 01403-5557 UC 600 74 37.4 16
Show 01384-5546 WSP 97 AB 271 5.9 28
Show 01411-5542 UC 602 42 18.1 32
Show 01435-5649 UC 613 53 33.4 49
Show 01472-5627 HU 1555 91 8.6 64
Show 01339-5531 RST1221 328 2.4 64
Show 01377-5714 KRV 54 309 0.3 65
Show 01342-5700 HU 1345 200 5.5 67
Show 01460-5658 FAL 2 348 6.3 70
Show 01459-5515 RST 40 270 0.4 77
Show 01476-5529 NSN 209 154 7.2 79
Show 01433-5458 RST 39 10 0.7 80
Show 01430-5451 SLR 3 230 0.5 85
Show 01362-5731 I 714 10 1.2 85
Show 01432-5801 HDS 229 AB 355 16.7 113
Show 01432-5801 SKF 417 AC 103 25.3 113
Show 01328-5752 UC 576 125 27.6 116
Show 01270-5702 TDS1880 266 0.6 117
Show 01261-5650 BRT2529 123 3.9 120
Show 01430-5414 HU 1554 282 5.6 121
Show 01518-5458 HDS 253 AB 218 2.5 126
Show 01518-5458 SHY 128 AC 216 999.9 126
Show 01394-5824 TDS1943 178 0.8 133
Show 01420-5357 BRT2018 138 5.0 136
Show 01389-5835 HU 1553 9 2.1 144
Show 01535-5443 TDS2042 303 1.9 146
Show 01568-5653 RST 42 22 1.0 147
Show 01572-5550 SKF1516 247 6.4 148
Show 01228-5712 WIS 29 44 522.9 153
Show 01234-5729 CVN 35 322 10.8 156
Show 01396-5336 HDS 219 186 1.5 157
Show 01465-5340 TSN9001 Ba,Bb 148 0.0 163
Show 01589-5652 LDS 63 128 36.0 163
Show 01430-5329 KPP1069 4 8.5 166
Show 01388-5327 DUN 4 105 10.2 166
Show 01231-5444 LDS 47 72 231.3 168
Show 01212-5505 RST1215 22 1.2 171
Show 01205-5720 HJ 3430 AB 224 3.2 174
Show 01205-5720 TOK 454 AC 129 999.9 174
Show 01429-5908 JSP 24 236 0.7 178
Show 01220-5759 HDS 177 298 1.5 181
Show 01357-5312 HJ 3449 194 30.8 184
Show 01316-5322 I 264 AB 22 0.8 184
Show 01316-5322 HJ 3444 AB,C 7 39.2 184
Show 01213-5434 GKM9022 Aa,Ab 312 0.2 186
Show 01213-5434 GKM9022 AB 15 1.3 186
Show 01231-5411 HDS 179 113 0.1 187
Show 01314-5907 HLN 2 252 2.0 189
Show 01341-5919 HJ 3446 311 22.2 193

 
 
WDS 01398-5612 : COMPONENTS
 
 
  A
B pa=184.6°
sep=11.32"
 
 
01398-5612 A
 
 
Name p Eri Coord arcsec 2000 013947.83-561136.0 Mag 5.78 Spectral class K0V (yellow-orange)
PmRA 262.00 PmDE 15.0 SAO 232490 HIP 7751
Tycho2 8478-01394-2 HD 10360 HR 486 GC 2030
CD CD-56 328 CP CP-56 329
Tycho2
Tycho2 8478-01394-2 Pflag X RAmdeg DEmdeg
PmRA PmDE E RAmdeg E DEmdeg
E pmRA E pmDE EpRAm EpDEm
Num Q RAmdeg Q DEmdeg Q pmRA
Q pmDE BTmag 6.765 E BTmag 0.015 VTmag 5.781
E VTmag 0.009 Prox 114 TYC HIP 7751
CCDM A RAdeg 24.94814583 DEdeg -56.19337750 EpRA 1990 1.83
EpDE 1990 1.61 E RAdeg 3.5 E DEdeg 3.8 Posflg
Corr 0.2
SAO
SAO 232490 DelFlag RA1950 PmRA1950 0.0337
DE1950 PmDE1950 0.027 Vmag 5.3 SpType G5
Double code Source 70 CatNum 2030 DM CP-56 329
DMcomp BDsup HD 10360 M HD 9
GC 2030 RA1950rad 0.42718847 DE1950rad -0.98520167 PmRA2000 0.0334
PmDE2000 0.02
Hipparcos
Catalog H HIP 7751 Proxy RAhms 01 39 47.24
DEdms -56 11 47.2 Vmag 5.76 VarFlag R Vmag H
RAdeg 24.9468 DEdeg -56.1964 AstroRef B Plx 122.75
CCDM 286.10 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual D M HIP BA
Theta 12 Rho 11.263 HD BD
CD CD-56 328 CP CP-56 329 Dm number -56 328 VIred 0.93
SpType K0V R SpType Coord arcsec 2000 013947.24-561147.2
Hipparcos 2
HIP 7751 Sn 15 So 3 Nc 2
RArad 0.4354046475 DErad -0.9808129451 Plx 127.84 PmRA 282.16
PmDE 10.56 E RArad 1.56 E DErad 1.92 E Plx 2.19
E pmRA 2.16 E pmDE 1.88 Hpmag E Hpmag 0.0205
SHp 0.012 VA 0 BV 0.88 E BV 0.4
VI 0.93
CCDM
Ccdm 01398-5612 RComp Comp A Note1
Note2 Discov num DRAs 0.01 DDEs 22.9
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.0 Sp G5 PmNote *
PmRA 288 PmDE 35 Dm number -56 329 Cat1 CPD
Name2 Cat2 HD 10361 M HD
ADS BDS M ADS BDS N IDS IDS 01360S5642A
HIC 7751
 
 
01398-5612 B
 
 
Coord arcsec 2000 013947.72-561147.3 Mag 5.9 Spectral class K5V (yellow-orange) PmRA 309.00
PmDE 11.0 Tycho2 8478-01394-1 HD 10361 HR 487
Delta magnitude 0.12 Coordinate calculated yes
Tycho2
Tycho2 8478-01394-1 Pflag RAmdeg 24.94815552 DEmdeg -56.19648348
PmRA 302.6 PmDE -14.1 E RAmdeg 4 E DEmdeg 4
E pmRA 1.4 E pmDE 1.3 EpRAm 1991.62 EpDEm 1991.47
Num 8 Q RAmdeg 2.5 Q DEmdeg 1.5 Q pmRA 2.5
Q pmDE 1.5 BTmag 6.917 E BTmag 0.014 VTmag 5.897
E VTmag 0.009 Prox 114 TYC T HIP 7751
CCDM B RAdeg 24.94691056 DEdeg -56.19645056 EpRA 1990 1.76
EpDE 1990 1.62 E RAdeg 3.5 E DEdeg 3.8 Posflg
Corr 0.2
CCDM
Ccdm 01398-5612 RComp Comp B Note1 *
Note2 Discov num DUN 5 DRAs -0.45 DDEs 13.4
R dRAs 10 Year 1835 Theta Rho
Obs 99 Vmag 6.0 Sp G5 PmNote *
PmRA 312 PmDE -13 Dm number Cat1
Name2 Cat2 HD 10360 M HD
ADS BDS M ADS BDS N IDS IDS 01360S5642B
HIC 7751