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Doubles in session


Current system
04312+5858
STI 2051 AB


Nearby doubles
25' : 04333+5921
TOR 7

27' : 04343+5910
DAL 23

32' : 04337+5924
STI 526

33' : 04352+5858
LDS3594

34' : 04300+5827
KPP2032

42' : 04357+5836
STI2057

46' : 04277+5935
BWL 16

48' : 04357+5932
TDS2904

49' : 04297+5945
STI 518AB

49' : 04352+5821
NSN 21

53' : 04296+5950
STI 517

55' : 04328+5805
STI2054

56' : 04268+5814
HDS 571

56' : 04340+5808
STI2055

65' : 04359+5806
TDS2908

74' : 04230+5937
KUI 16AB

76' : 04382+5952
STI 528

81' : 04216+5828
STI2045

87' : 04259+6015
STF 526AB

87' : 04422+5845
ES 56

87' : 04417+5933
STI 530

90' : 04270+5735
OPI 3

91' : 04429+5859
TDS2942

95' : 04307+5725
PRU 1

97' : 04437+5857
TDS2949

99' : 04433+5931
A 1013



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.

04312+5858 STI 2051 AB

 
 
04h 31m 11.52s +58° 58' 37.5" P.A. 59.00 sep 11.0 mag 11.38,12.13 Sp M4.0V+DC5 dist. 5.58 pc (18.2 l.y.)
 
 
Coord 2000 04312+5858 Discov num STI2051 Comp AB Coord arcsec 2000 04 31 11.52 +58 58 37.5
Date first 1908 Date last 2020 Obs 111
Pa first 145 Pa last 58.6 P.A. Now (θ) 58.6°
Sep first 6.9 Sep last 10.99 Sep. Now (ρ) 10.99"
Mag pri 11.38 Mag sec 12.13 delta mag (ΔM) 0.75 Spectral class M4.0V+DC5 (red/white dwarf)
Pri motion ra +130 Sec motion ra +134
Pri motion dec -205 Sec motion dec -196
Notes N C P (See Notes, Has orbit and linear solution, 100-year proper motion)
rPM=0.041 (< 0.3, Physical double)
This double is physical.
 
 
04312+5858 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 04 31 12 +58 58 38 STI 2051 AB 2020 111 59 11.0 11.38 12.13 0.75 Y <===
Show 04 31 12 +58 58 38 PWS 2 AC 2000 2 326 139.3 10.97 15.31 4.34
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Camelopardalis HIP 21088 Tycho2 3744-00412-1 GL Gl 169.1A
Distance 5.58 Distance ly 18.2
 
 
ORBITAL ELEMENTS
 
 
Period (P)1799.89y Periastron (T)1798.9864y Semi-major axis (a)32.2191a
Eccentricity (e)0.7054 Inclination (i)105.2509° Longitude of periastron (ω)333.2549°
Node (Ω)10.3888° Notesn ReferenceKpp2020f
Equinox Last observation Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 245.1 8.962
2001 244.6 9.039
2002 244.1 9.116
2003 243.7 9.193
2004 243.2 9.271
2005 242.7 9.349
2006 242.3 9.428
2007 241.9 9.507
2008 241.5 9.586
2009 241.0 9.666
2010 240.6 9.746
2011 240.2 9.827
2012 239.8 9.907
2013 239.4 9.989
2014 239.0 10.070
2015 238.7 10.152
2016 238.3 10.234
2017 237.9 10.316
2018 237.6 10.398
2019 237.2 10.481
2020 236.9 10.564
2021 236.5 10.647
2022 236.2 10.730
2023 235.8 10.814
2024 235.5 10.898
2025 235.2 10.982
2026 234.9 11.066
2027 234.6 11.150
2028 234.3 11.235
2029 233.9 11.320
2030 233.6 11.404


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


 
  


wds04309%2B5902a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
SUSPECTED ORBITAL ELEMENTS
 
 
Identifier04312+5858 STI2051 A
coord_arcsec_2000043111.52+585837.5
Period (P)23y Periastron (T)1966y Semi-major axis (a)0.07a
Eccentricity (e)0.3 Inclination (i)65° Longitude of periastron (ω)73°
Node (Ω)97° Notesn ReferenceStr1977
Equinox Last observation1977 Grade9(1=Definitive, 9=Indet.)
label theta rho
2000 324.1 0.049
2001 339.2 0.042
2002 358.4 0.038
2003 20.0 0.038
2004 39.9 0.041
2005 55.8 0.047
2006 68.0 0.054
2007 77.8 0.059
2008 86.3 0.061
2009 94.5 0.060
2010 104.1 0.053
2011 118.6 0.040
2012 151.1 0.024
2013 215.3 0.024
2014 249.9 0.039
2015 264.2 0.054
2016 272.8 0.065
2017 279.3 0.072
2018 285.1 0.074
2019 290.8 0.073
2020 297.0 0.069
2021 304.1 0.063
2022 312.8 0.056
2023 324.1 0.049
2024 339.2 0.042
2025 358.4 0.038
2026 20.0 0.038
2027 39.9 0.041
2028 55.8 0.047
2029 68.0 0.054
2030 77.8 0.059


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


 
  


wds04309%2B5902r.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 04312+5858 STI 2051 AB : NOTES
 
 
discov_num notes refcode
STI2051 A is an astrometric binary. B (mag. 12.44, 8", DC) is a white dwarf,
in slow retrograde motion about the mass-center. A very large proper
proper motion brought this pair close to a 13th magnitude star which
was measured as the C component by Pauwels & Lampens. Pws1993
Also known as HDS 584.
B: Teff = 7122 +/- 122 K, R = 0.0114 +/- 0.0004 \rsun, M = 0.675 +/- BdH2017b
0.051 \msun.
AB: Rectilinear solutions by Cvetkovic (2015) Cve2015b
and Cvetkovic et al. (2016). Cve2016
Despite the linear solution, based on proper motion and parallax
is physical.
 
 
REFERENCES
 
 
refcode metd author reference
BdH2017b not - Bond, H.E., Bergeron, P. & Bedard, A. 2017ApJ...848...16B
BdH2017b ApJ 848, 16, 2017
Cve2015b orb - Cvetkovic, Z. 2015IAUDS.187....1C
Cve2015b +lin Inf. Circ. 187, 1, 2015
Cve2016 C j Cvetkovic, Z., Pavlovic, R. & Boeva, S. 2016AJ....151...58C
Cve2016 +lin AJ 151, 58, 2016
Kpp2020f Hg+ j Knapp, W.R.A. 2020JDSO...16..229K
Kpp2020f +C JDSO 16, 229, 2020
Kpp2020f +orb
Pws1993 Pa - Pauwels, T. & Lampens, P. 1993BAORB..10..216P
Pws1993 Bull. R. Astron. Obs. Belgium 10, 216, 1993
 
 
DISCOVERER
 
 
idgroup discov author
1 STI Stein, J. (see Vat1926)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
04312+5858 STI2051 AB 2006 78 62 9.4 11.38 12.13 NVDP 043110.05+585855.4
04312+5858 STI2051 AB 2010 83 61 10.1 11.38 12.13 NVDP 043110.09+585855.2
04312+5858 STI2051 AB 2012 85 60 10.0 11.38 12.13 M4.0V+DC5 NVDP 043110.05+585855.4
04312+5858 STI2051 AB 2015 88 60 10.2 11.38 12.13 M4.0V+DC5 NL P 043111.52+585837.5
04312+5858 STI2051 AB 2017 99 59 10.3 11.38 12.13 M4.0V+DC5 NL P 043111.52+585837.5
04312+5858 STI2051 AB 2019 103 57 10.6 11.38 12.13 M4.0V+DC5 NLVP 043111.52+585837.5
04312+5858 STI2051 AB 2020 110 59 11.0 11.38 12.13 M4.0V+DC5 NLVP 043111.52+585837.5

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

 
 
WDS 04312+5858 STI 2051 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 04312+5858 STI 2051 AB : MEASURES
 
 
No records found.

 
 
WDS 04312+5858 : VIRTUAL EYEPIECE
 
 

04312+5858 STI2051A mag 11.38 Sp M4.0V 04312+5858 STI2051B sep 7.5 P.A. 40.20 mag 12.13 Sp DC5 04312+5858 PWS 2C sep 121.8 P.A. 340.50 mag 15.31 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 04312+5858 : ALADIN DSS IMAGE @ 04h 31m 11.52s +58° 58' 37.5"
 
 
 
 
WDS 04312+5858 STI 2051 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

04312+5858 STI2051AB distance=0' 04333+5921 TOR 7 distance=25' 04343+5910 DAL 23 distance=27' 04337+5924 STI 526 distance=32' 04352+5858 LDS3594 distance=33' 04300+5827 KPP2032 distance=34' 04357+5836 STI2057 distance=42' 04277+5935 BWL 16 distance=46' 04357+5932 TDS2904 distance=48' 04297+5945 STI 518BC distance=49' 04297+5945 STI 518AB distance=49' 04352+5821 NSN 21 distance=49' 04296+5950 STI 517 distance=53' 04328+5805 STI2054 distance=55' 04268+5814 HDS 571 distance=56' 04340+5808 STI2055 distance=56' 04359+5806 TDS2908 distance=65' 04230+5937 KUI 16AB distance=74' 04230+5937 ARG 100AB,C distance=74' 04382+5952 STI 528 distance=76' 04216+5828 STI2045 distance=81' 04259+6015 STF 526AB distance=87' 04259+6015 WAL 30AC distance=87' 04422+5845 ES 56 distance=87' 04417+5933 STI 530 distance=87' 04270+5735 OPI 3 distance=90' 04429+5859 TDS2942 distance=91' 04307+5725 PRU 1 distance=95' 04437+5857 TDS2949 distance=97' 04433+5931 A 1013 distance=99' 04319+5718 STI2052AB distance=101' 04319+5718 FYM 370AC distance=101' 04219+5749 BRG 34AB distance=101' 04181+5906 TDS2813 distance=102' 04441+5922 STI 535 distance=103' 04179+5847 STF 511 distance=104' 04321+5713 A 1008 distance=107' 04449+5846 TDS 144 distance=107' 04210+5748 MLB 117 distance=108' 04419+6016 STI 531 distance=112' 04456+5842 LDS3611 distance=113' 04355+6047 KPP3580 distance=113' 04162+5914 LDS3566 distance=116' 04464+5851 TDS2963 distance=119' 04467+5907 STI2069 distance=120' 04290+5659 MLB 118 distance=122' 04242+6048 STI 511 distance=122' 04381+5707 HDS 598 distance=125' 04458+5806 CVR 53 distance=126' 04149+5824 LDS9165AB distance=132' 04186+6030 STT 75 distance=132' 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 04312+5858 STI2051 AB 59 11.0
Show 04312+5858 PWS 2 AC 326 139.3
Show 04333+5921 TOR 7 205 4.5 25
Show 04343+5910 DAL 23 111 4.5 27
Show 04337+5924 STI 526 109 11.4 32
Show 04352+5858 LDS3594 80 2.0 33
Show 04300+5827 KPP2032 105 16.2 34
Show 04357+5836 STI2057 94 13.8 42
Show 04277+5935 BWL 16 184 4.2 46
Show 04357+5932 TDS2904 245 1.7 48
Show 04297+5945 STI 518 BC 89 6.7 49
Show 04297+5945 STI 518 AB 144 8.6 49
Show 04352+5821 NSN 21 83 0.7 49
Show 04296+5950 STI 517 34 7.7 53
Show 04328+5805 STI2054 305 15.7 55
Show 04268+5814 HDS 571 39 0.2 56
Show 04340+5808 STI2055 330 4.8 56
Show 04359+5806 TDS2908 344 2.3 65
Show 04230+5937 KUI 16 AB 196 1.2 74
Show 04230+5937 ARG 100 AB,C 60 32.5 74
Show 04382+5952 STI 528 249 3.7 76
Show 04216+5828 STI2045 108 11.1 81
Show 04259+6015 STF 526 AB 55 6.0 87
Show 04259+6015 WAL 30 AC 310 59.1 87
Show 04422+5845 ES 56 206 9.4 87
Show 04417+5933 STI 530 257 14.0 87
Show 04270+5735 OPI 3 176 20.7 90
Show 04429+5859 TDS2942 71 1.1 91
Show 04307+5725 PRU 1 222 0.1 95
Show 04437+5857 TDS2949 112 0.6 97
Show 04433+5931 A 1013 301 0.4 99
Show 04319+5718 STI2052 AB 289 3.9 101
Show 04319+5718 FYM 370 AC 255 14.2 101
Show 04219+5749 BRG 34 AB 297 6.1 101
Show 04181+5906 TDS2813 329 0.5 102
Show 04441+5922 STI 535 231 11.7 103
Show 04179+5847 STF 511 67 0.5 104
Show 04321+5713 A 1008 141 3.4 107
Show 04449+5846 TDS 144 253 1.6 107
Show 04210+5748 MLB 117 74 5.3 108
Show 04419+6016 STI 531 124 8.9 112
Show 04456+5842 LDS3611 292 51.3 113
Show 04355+6047 KPP3580 63 11.6 113
Show 04162+5914 LDS3566 276 207.7 116
Show 04464+5851 TDS2963 140 0.5 119
Show 04467+5907 STI2069 347 3.7 120
Show 04290+5659 MLB 118 153 7.0 122
Show 04242+6048 STI 511 10 7.8 122
Show 04381+5707 HDS 598 334 0.2 125
Show 04458+5806 CVR 53 2 82.1 126
Show 04149+5824 LDS9165 AB 122 8.4 132

 
 
WDS 04312+5858 : COMPONENTS
 
 
  A B
B pa=40.2°
sep=7.49"
 
C pa=340.5°
sep=121.80"
pa=337.4°
sep=118.19"
 
 
04312+5858 A
 
 
Coord arcsec 2000 043111.52+585837.5 Mag 11.38 Spectral class M4.0V (red) PmRA 130.00
PmDE -205.0 HIP 21088 Tycho2 3744-00412-1
Tycho2
Tycho2 3744-00412-1 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 13.279 E BTmag 0.312 VTmag 11.377
E VTmag 0.088 Prox 82 TYC HIP 21088
CCDM A RAdeg 67.79207222 DEdeg 58.98200833 EpRA 1990 1.58
EpDE 1990 1.38 E RAdeg 63.2 E DEdeg 74.8 Posflg
Corr 0.1
Hipparcos
Catalog H HIP 21088 Proxy H RAhms 04 31 10.05
DEdms +58 58 55.4 Vmag 10.82 VarFlag R Vmag G
RAdeg 67.7919 DEdeg 58.9821 AstroRef A Plx 181.36
CCDM 04312+5858 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual D M HIP AB
Theta 69 Rho 8.35 HD BD
CD CP Dm number VIred 1.13
SpType R SpType Coord arcsec 2000 043110.05+585855.4
Hipparcos 2
HIP 21088 Sn 15 So 3 Nc 2
RArad 1.1831911466 DErad 1.0294310196 Plx 179.27 PmRA 1302.66
PmDE -2046.7 E RArad 2.62 E DErad 2.03 E Plx 3.23
E pmRA 3.47 E pmDE 2.65 Hpmag 10.7934 E Hpmag 0.0041
SHp 0.03 VA 0 BV 1.17 E BV 0.042
VI 1.13
CCDM
Ccdm 04312+5858 RComp Comp A Note1
Note2 @ Discov num DRAs 0.11 DDEs 44.4
R dRAs 63 Year Theta Rho
Obs 3 Vmag 12.7 Sp PmNote
PmRA 1374 PmDE -1947 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 04224N5849A
HIC 21088
 
 
04312+5858 B
 
 
Coord arcsec 2000 043112.15+585843.2 Mag 12.13 Spectral class DC5 (white dwarf) PmRA 134.00
PmDE -196.0 Calc delta mag 0.75 Calc coord yes
CCDM
Ccdm 04312+5858 RComp Comp B Note1
Note2 Discov num STI2051 DRAs 0.81 DDEs 41.8
R dRAs 63 Year 1938 Theta 115 Rho 6.0
Obs 3 Vmag 12.7 Sp PmNote
PmRA 1374 PmDE -1947 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 04224N5849B
HIC 21088
 
 
04312+5858 C
 
 
Coord arcsec 2000 043106.26+590032.3 Mag 15.31 PmRA 0.00 PmDE 0.0
Calc delta mag 3.93 Calc coord yes
CCDM
Ccdm 04312+5858 RComp Comp C Note1
Note2 Discov num PWS 2 DRAs -10.82 DDEs 153.4
R dRAs 63 Year 1938 Theta 176 Rho 12.0
Obs 1 Vmag 13.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS * IDS 04224N5849C
HIC