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Doubles in session


Current system
04436-0848
STF 590
55 Eri


Nearby doubles
4' : 04432-0848
HJ 2238

22' : 04423-0838
RST4253

40' : 04410-0840
RST4252

43' : 04456-0919
GWP 614

50' : 04433-0937
BU 1384AB

52' : 04406-0912
WOR 17

64' : 04479-0842
HJ 3687

73' : 04393-0813
RST4251AB

80' : 04383-0856
RST4248AB

80' : 04483-0811
UC 1215

82' : 04386-0921
TOK 387

84' : 04431-0725
A 476

87' : 04473-0954
SKF 774

94' : 04437-1021
TDS2950AB

100' : 04398-1010
BVD 72

102' : 04413-1023
TVB 74

108' : 04382-0736
CVR 52

111' : 04374-0951
RST3401

114' : 04438-1041
HDS 610

115' : 04460-0659
BU 186

126' : 04501-0727
TDS2981

127' : 04511-0946
HU 31

131' : 04478-1043
HU 214

131' : 04483-0657
TDS2970

132' : 04399-0650
HJ 25AB

135' : 04518-0751
BU 748



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.

04436-0848 STF 590 (55 Eri)

 
 
04h 43m 35.17s -08° 47' 46.4" P.A. 318.00 sep 9.3 mag 6.74,6.78 Sp G5III dist. 653.59 pc (2132.01 l.y.)
 
 
Coord 2000 04436-0848 Discov num STF 590 Comp Coord arcsec 2000 04 43 35.17 -08 47 46.4
Date first 1783 Date last 2018 Obs 101
Pa first 314 Pa last 317.8 P.A. Now (θ) 317.8°
Sep first 9.2 Sep last 9.334 Sep. Now (ρ) 9.334"
Mag pri 6.74 Mag sec 6.78 delta mag (ΔM) 0.04 Spectral class G5III (yellow)
Pri motion ra +029 Sec motion ra +029
Pri motion dec -029 Sec motion dec -029
Notes N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name 55 Eri Var name DW Eri Constellation Eridanus SAO 131442
HIP 21986 Tycho2 5321-02147-1 Gaia DR2 3185880919107361024 HD 30020
HR 1505 GC 5759 ADS 3409 BD BD-09 969
Flamsteed 55 Eridani Flamsteed name 55 Eri Distance 653.59 Distance ly 2132.01
 
 
WDS 04436-0848 STF 590 (55 Eri) : NOTES
 
 
discov_num notes refcode
STF 590 55 Eri. B is a Delta Scuti-type variable, DW Eri., BD-09@969. Spectral
type F4IIIpSr. Both components are spectroscopic binaries.
H 3 99. MEv2010
 
 
REFERENCES
 
 
refcode metd author reference
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
 
 
DISCOVERER
 
 
idgroup discov author
1 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
04436-0848 STF 590 2007 90 318 9.2 6.74 6.78 G5III N D 044335.17-084746.4
04436-0848 STF 590 2011 91 318 9.2 6.74 6.78 G5III N D 044335.17-084746.4
04436-0848 STF 590 2015 96 319 9.2 6.74 6.78 G5III N 044335.17-084746.4
04436-0848 STF 590 2018 98 319 9.3 6.74 6.78 G5III N 044335.17-084746.4

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

 
 
WDS 04436-0848 STF 590 (55 Eri) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 04436-0848 STF 590 (55 Eri) : MEASURES
 
 
No records found.

 
 
WDS 04436-0848 (55 Eri) : VIRTUAL EYEPIECE
 
 

04436-0848 STF 590A mag 6.74 Sp G5III 04436-0848 STF 590B sep 9.3 P.A. 318.10 mag 6.78 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 04436-0848 (55 Eri) : ALADIN DSS IMAGE @ 04h 43m 35.17s -08° 47' 46.4"
 
 
 
 
WDS 04436-0848 STF 590 (55 Eri) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

04436-0848 STF 590 distance=0' 04432-0848 HJ 2238 distance=4' 04423-0838 RST4253 distance=22' 04410-0840 RST4252 distance=40' 04456-0919 GWP 614 distance=43' 04433-0937 BU 1384AB distance=50' 04433-0937 STF 588AC distance=50' 04406-0912 WOR 17 distance=52' 04479-0842 HJ 3687 distance=64' 04393-0813 RST4251AB distance=73' 04393-0813 TDS2925AC distance=73' 04383-0856 RST4248AB distance=80' 04383-0856 HLN 7AB,C distance=80' 04483-0811 UC 1215 distance=80' 04386-0921 TOK 387 distance=82' 04431-0725 A 476 distance=84' 04473-0954 SKF 774 distance=87' 04437-1021 TDS2950AB distance=94' 04437-1021 DAM1318AB,C distance=94' 04398-1010 BVD 72 distance=100' 04413-1023 TVB 74 distance=102' 04382-0736 CVR 52 distance=108' 04374-0951 RST3401 distance=111' 04438-1041 HDS 610 distance=114' 04460-0659 BU 186 distance=115' 04501-0727 TDS2981 distance=126' 04511-0946 HU 31 distance=127' 04478-1043 HU 214 distance=131' 04483-0657 TDS2970 distance=131' 04399-0650 HJ 25AB distance=132' 04399-0650 HJ 25AC distance=132' 04518-0751 BU 748 distance=135' 04352-0944 STF 570 distance=136' 04429-0629 HJ 26 distance=138' 04401-0640 BRT 368 distance=139' 04413-0631 CTI9207BE distance=141' 04531-0853 BRT 369 distance=141' 04485-1052 RST3402AB distance=144' 04437-0622 SKF1690 distance=147' 04490-1052 KPP 890 distance=149' 04534-0925 RST4256 distance=151' 04533-0756 SKF 775 distance=153' 04469-1117 JNN 28 distance=157' 04481-0625 A 477 distance=159' 04338-0954 UC 1185 distance=160' 04335-0750 TOK 248 distance=161' 04544-0920 HJ 2242 distance=164' 04549-0835 TDS3004 distance=168' 04542-0951 KPP1110 distance=170' 04498-0625 CVR 54 distance=171' 04319-0851 HJ 2234 distance=173' 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 04436-0848 STF 590 318 9.3
Show 04432-0848 HJ 2238 67 18.1 4
Show 04423-0838 RST4253 229 0.7 22
Show 04410-0840 RST4252 71 1.1 40
Show 04456-0919 GWP 614 36 139.9 43
Show 04433-0937 BU 1384 AB 93 8.2 50
Show 04433-0937 STF 588 AC 268 45.4 50
Show 04406-0912 WOR 17 194 2.0 52
Show 04479-0842 HJ 3687 281 24.8 64
Show 04393-0813 RST4251 AB 52 0.2 73
Show 04393-0813 TDS2925 AC 326 0.5 73
Show 04383-0856 RST4248 AB 129 0.3 80
Show 04383-0856 HLN 7 AB,C 165 8.4 80
Show 04483-0811 UC 1215 92 68.5 80
Show 04386-0921 TOK 387 244 0.0 82
Show 04431-0725 A 476 154 0.8 84
Show 04473-0954 SKF 774 18 2.6 87
Show 04437-1021 TDS2950 AB 22 0.5 94
Show 04437-1021 DAM1318 AB,C 230 7.0 94
Show 04398-1010 BVD 72 123 25.1 100
Show 04413-1023 TVB 74 247 22.0 102
Show 04382-0736 CVR 52 196 53.1 108
Show 04374-0951 RST3401 244 0.4 111
Show 04438-1041 HDS 610 195 0.7 114
Show 04460-0659 BU 186 28 0.4 115
Show 04501-0727 TDS2981 26 0.6 126
Show 04511-0946 HU 31 331 1.3 127
Show 04478-1043 HU 214 235 4.6 131
Show 04483-0657 TDS2970 278 0.5 131
Show 04399-0650 HJ 25 AB 85 7.4 132
Show 04399-0650 HJ 25 AC 312 14.9 132
Show 04518-0751 BU 748 127 1.2 135
Show 04352-0944 STF 570 260 12.8 136
Show 04429-0629 HJ 26 289 10.8 138
Show 04401-0640 BRT 368 180 5.0 139
Show 04413-0631 CTI9207 BE 107 2.6 141
Show 04531-0853 BRT 369 100 4.8 141
Show 04485-1052 RST3402 AB 224 1.3 144
Show 04437-0622 SKF1690 82 1.6 147
Show 04490-1052 KPP 890 287 7.4 149
Show 04534-0925 RST4256 294 2.2 151
Show 04533-0756 SKF 775 7 9.9 153
Show 04469-1117 JNN 28 288 1.5 157
Show 04481-0625 A 477 165 0.6 159
Show 04338-0954 UC 1185 206 37.6 160
Show 04335-0750 TOK 248 314 281.2 161
Show 04544-0920 HJ 2242 19 21.4 164
Show 04549-0835 TDS3004 260 0.8 168
Show 04542-0951 KPP1110 337 8.8 170
Show 04498-0625 CVR 54 337 23.9 171
Show 04319-0851 HJ 2234 270 40.7 173

 
 
WDS 04436-0848 : COMPONENTS
 
 
  A
B pa=318.1°
sep=9.28"
 
 
04436-0848 A
 
 
Componente originario normalizzato AB Name 55 Eri Coord arcsec 2000 044335.17-084746.4 Mag 6.74
Spectral class G5III (yellow) PmRA 29.00 PmDE -29.0 SAO 131442
HIP 21986 Tycho2 5321-02147-1 HD 30020 HR 1505
GC 5759 BD BD-09 969 Flamsteed 55 Eridani Flamsteed name 55 Eri
Tycho2
Tycho2 5321-02147-1 Pflag RAmdeg 70.89652464 DEmdeg -8.79622557
PmRA 30.5 PmDE -28.6 E RAmdeg 5 E DEmdeg 5
E pmRA 1.1 E pmDE 1.1 EpRAm 1991.35 EpDEm 1991.01
Num 10 Q RAmdeg 1.4 Q DEmdeg 0.8 Q pmRA 1.3
Q pmDE 0.6 BTmag 7.734 E BTmag 0.016 VTmag 6.737
E VTmag 0.011 Prox 93 TYC T HIP 21986
CCDM A RAdeg 70.89645333 DEdeg -8.79615667 EpRA 1990 1.67
EpDE 1990 1.33 E RAdeg 4.5 E DEdeg 5.3 Posflg
Corr -0.1
SAO
SAO 131442 DelFlag RA1950 PmRA1950 0.001
DE1950 PmDE1950 -0.012 Vmag 6.8 SpType F5
Double code Source 70 CatNum 5759 DM BD-09 969
DMcomp BDsup HD 30020 M HD 0
GC 5759 RA1950rad 1.22686601 DE1950rad -0.15509169 PmRA2000 0.0014
PmDE2000 -0.012
Hipparcos
Catalog H HIP 21986 Proxy H RAhms 04 43 34.73
DEdms -08 47 39.3 Vmag 5.98 VarFlag 2 R Vmag H
RAdeg 70.8947 DEdeg -8.79425 AstroRef B Plx 8.04
CCDM 04436-0848 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual B M HIP BA
Theta 138 Rho 9.287 HD 30020 BD BD-09 969
CD CP Dm number -09 969 VIred 0.67
SpType F4IIIp (Sr) R SpType Coord arcsec 2000 044334.73-084739.3
Hipparcos 2
HIP 21986 Sn 15 So 3 Nc 2
RArad 1.2373459082 DErad -0.1534885477 Plx 1.53 PmRA 31.63
PmDE -26.01 E RArad 2.1 E DErad 1.67 E Plx 3.05
E pmRA 2.45 E pmDE 1.9 Hpmag 6.1193 E Hpmag 0.002
SHp 0.018 VA 2 BV 0.645 E BV 0.007
VI 0.71
CCDM
Ccdm 04436-0848 RComp Comp A Note1
Note2 Discov num DRAs -0.86 DDEs 14.4
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.7 Sp F5 PmNote *
PmRA 28 PmDE -24 Dm number -09 970 Cat1 BD
Name2 131443 Cat2 SAO HD 30021 M HD
ADS BDS A 3409 M ADS BDS N IDS IDS 04388S0859A
HIC 21986
 
 
04436-0848 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 044334.75-084739.5 Mag 6.78 PmRA 29.00
PmDE -29.0 SAO 131443 HIP 21986 Tycho2 5321-02146-1
HD 30021 HR 1506 GC 5760 DM BD-09 970
Flamsteed 55 Eridani Flamsteed name 55 Eri Calc delta mag 0.04 Calc coord yes
Tycho2
Tycho2 5321-02146-1 Pflag RAmdeg 70.89478755 DEmdeg -8.79432409
PmRA 35.6 PmDE -30.7 E RAmdeg 5 E DEmdeg 5
E pmRA 1.2 E pmDE 1.2 EpRAm 1991.41 EpDEm 1991.13
Num 9 Q RAmdeg 1.6 Q DEmdeg 1.4 Q pmRA 1.6
Q pmDE 1.4 BTmag 7.252 E BTmag 0.015 VTmag 6.784
E VTmag 0.011 Prox 93 TYC T HIP 21986
CCDM B RAdeg 70.89470417 DEdeg -8.79425028 EpRA 1990 1.65
EpDE 1990 1.37 E RAdeg 4.5 E DEdeg 5.1 Posflg
Corr -0.1
SAO
SAO 131443 DelFlag RA1950 PmRA1950 0.0017
DE1950 PmDE1950 -0.024 Vmag 6.7 SpType F5
Double code Source 70 CatNum 5760 DM BD-09 970
DMcomp BDsup HD 30021 M HD 0
GC 5760 RA1950rad 1.22690096 DE1950rad -0.15512894 PmRA2000 0.0021
PmDE2000 -0.024
Hipparcos
Catalog H HIP 21986 Proxy H RAhms 04 43 34.73
DEdms -08 47 39.3 Vmag 5.98 VarFlag 2 R Vmag H
RAdeg 70.8947 DEdeg -8.79425 AstroRef B Plx 8.04
CCDM 04436-0848 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual B M HIP BA
Theta 138 Rho 9.287 HD 30020 BD BD-09 969
CD CP Dm number -09 969 VIred 0.67
SpType F4IIIp (Sr) R SpType Coord arcsec 2000 044334.73-084739.3
Hipparcos 2
HIP 21986 Sn 15 So 3 Nc 2
RArad 1.2373459082 DErad -0.1534885477 Plx 1.53 PmRA 31.63
PmDE -26.01 E RArad 2.1 E DErad 1.67 E Plx 3.05
E pmRA 2.45 E pmDE 1.9 Hpmag 6.1193 E Hpmag 0.002
SHp 0.018 VA 2 BV 0.645 E BV 0.007
VI 0.71
CCDM
Ccdm 04436-0848 RComp Comp B Note1
Note2 Discov num STF 590 DRAs -1.35 DDEs 22.3
R dRAs 10 Year 1831 Theta 317 Rho 9.2
Obs 28 Vmag 6.8 Sp F5 PmNote *
PmRA 18 PmDE -12 Dm number -09 969 Cat1 BD
Name2 131442 Cat2 SAO HD 30020 M HD
ADS BDS A 3409 M ADS BDS N IDS IDS 04388S0859B
HIC 21986