stampa
Login

A workbench to forge your own double stars?
Create your account here!


Search



Actions
Advanced Search
Go to Simbad
New report
New measure
Login


Computed Lists
Populars
Latest Populars
Doubles in session


Current system
08427+0935
ST 8 AB


Nearby doubles
25' : 08440+0917
SKF 498

38' : 08423+0857
J 382

46' : 08456+0915
J 2063

58' : 08398+0856
LDS3806

58' : 08440+0839
TDS6064

62' : 08412+0837
UC 122

63' : 08385+0936
GWP1055

72' : 08457+1029
TDS6081

78' : 08460+0833
KPP1972

81' : 08382+0849
SLW 273

81' : 08441+0816
SKF 499

82' : 08471+0845
STF1277

83' : 08436+0812
DAM1476

83' : 08417+1059
HJ 101

88' : 08440+0808
BRT2602

90' : 08367+0948
J 1007

91' : 08454+0812
GWP1077

91' : 08454+1055
UC 124

91' : 08476+1029
CVR1165

93' : 08391+1048
GWP1059

97' : 08378+1037
GWP1052

98' : 08437+1109
BRT1255

101' : 08389+0811
STF1252

103' : 08359+0947
KRU 3

104' : 08359+0955
STF1246

105' : 08357+0930
FAL 24



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.

08427+0935 ST 8 AB

 
 
08h 42m 44.52s +09° 33' 24.1" P.A. 30.00 sep 1.7 mag 9.70,13.20 Sp M0.5V+M0V dist. 15.43 pc (50.33 l.y.)
 
 
Coord 2000 08427+0935 Discov num ST    8 Comp AB Coord arcsec 2000 08 42 44.52 +09 33 24.1
Date first 1937 Date last 2021 Obs 12
Pa first 177 Pa last 29.8 P.A. Now (θ) 29.8°
Sep first 2.0 Sep last 1.697 Sep. Now (ρ) 1.697"
Mag pri 9.70 Mag sec 13.20 delta mag (ΔM) 3.5 Spectral class M0.5V+M0V (red/red)
Pri motion ra +224 Sec motion ra +200
Pri motion dec -632 Sec motion dec -575
Notes N O T (See Notes, Orbital solution, Parallax indicates physical)
rPM=0.092 (< 0.3, Physical double)
This double is physical.
 
 
08427+0935 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 08 42 45 +09 33 24 ST 8 AB 2021 12 30 1.7 9.70 13.20 3.50 Y <===
Show 08 42 45 +09 33 24 LUY 6218 AB,C 2016 16 96 114.6 9.65 11.80 2.15
Show 08 42 52 +09 33 11 CRC 17 CD 2013 2 144 5.6 8.10
Quadruple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cancer HIP 42748 Tycho2 0810-02829-1 GL Gl 319A
BD BD+10 1857 Distance 15.43 Distance ly 50.33
 
 
ORBITAL ELEMENTS
 
 
Period (P)123.76y± 0.5 Periastron (T)1925.36y± 0.62 Semi-major axis (a)2.664a± 0.031
Eccentricity (e)0.617± 0.009 Inclination (i)106.5°± 0.8 Longitude of periastron (ω)260.5°± 3.6
Node (Ω)180.5°± 0.8 Notesn ReferenceMsn2021d
Equinox Last observation2019 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 83.8 1.193
2001 80.6 1.196
2002 77.4 1.202
2003 74.2 1.210
2004 71.1 1.222
2005 68.0 1.236
2006 65.0 1.253
2007 62.1 1.272
2008 59.3 1.293
2009 56.6 1.316
2010 54.0 1.341
2011 51.5 1.367
2012 49.1 1.395
2013 46.7 1.424
2014 44.5 1.454
2015 42.4 1.485
2016 40.3 1.516
2017 38.4 1.548
2018 36.5 1.579
2019 34.7 1.611
2020 32.9 1.642
2021 31.2 1.672
2022 29.6 1.702
2023 28.0 1.730
2024 26.5 1.758
2025 25.1 1.783
2026 23.6 1.807
2027 22.2 1.829
2028 20.9 1.848
2029 19.5 1.865
2030 18.2 1.878


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


 
  


wds08427%2B0935a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 08427+0935 ST 8 AB : NOTES
 
 
discov_num notes refcode
ST 8 KUI.
LUY6218 AB,C: SHY 48. Bayesian analysis by Shaya & Olling (2011) indicates Shy2011
very high (near 100%) probability pair is physical.
 
 
REFERENCES
 
 
refcode metd author reference
Msn2021d orb - Josties, J., Greaves, & Mason, B.D. 2021IAUDS.205....1M
Msn2021d Inf. Circ. 205, 1, 2021
Shy2011 - Shaya, E.J. & Olling, R. 2011ApJS..192....2S
Shy2011 ApJS 192, 2, 2011
Shy2011 (Statistical analysis of probability that wide Hipparcos pairs are physical. Pairs
Shy2011 added to WDS only if probability 90% or greater.)
 
 
DISCOVERER
 
 
idgroup discov author
1 CRC Cortes-Contreras, M., Caballero, J.A. & Montes, D.
4 CRC Cortes-Contreras, M., Bejar, V.J.S., Caballero, J.A., Gauza, B., Montes, D.,
4 CRC Alonso-Floriano, F.J., Jeffers, S.V., Morales, J.C., Reiners, A., Ribas, I.,
4 CRC Schofer, P., Quirrenbach, A., Amado, P.J., Mundt, R. & Seifert, W.
5 LUY Luyten, W.J.
80 ST Stearns, C.L.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
08427+0935 ST 8 AB 2004 6 68 1.2 9.70 13.20 M0 N 084244.52+093324.1
08427+0935 ST 8 AB 2008 7 59 1.3 9.70 13.20 K7D N 084244.52+093324.1
08427+0935 ST 8 AB 2017 8 38 1.6 9.70 13.20 K7V+M0V N W 084244.52+093324.1
08427+0935 ST 8 AB 2019 9 33 1.6 9.70 13.20 K7V+M0V N 084244.52+093324.1
08427+0935 ST 8 AB 2021 12 30 1.7 9.70 13.20 M0.5V+M0V NT 084244.52+093324.1

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

 
 
WDS 08427+0935 ST 8 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 08427+0935 ST 8 AB : MEASURES
 
 
No records found.

 
 
WDS 08427+0935 : VIRTUAL EYEPIECE
 
 

08427+0935 ST 8A mag 9.7 Sp M0.5V 08427+0935 ST 8B sep 1.7 P.A. 29.50 mag 13.2 Sp M0V 08427+0935 CRC 17C sep 114.8 P.A. 96.50 mag 8.1 Sp M2.5V 08427+0935 CRC 17D sep 118.6 P.A. 98.50 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 08427+0935 : ALADIN DSS IMAGE @ 08h 42m 44.52s +09° 33' 24.1"
 
 
 
 
WDS 08427+0935 ST 8 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

08427+0935 ST 8AB distance=0' 08427+0935 CRC 17CD distance=2' 08440+0917 SKF 498 distance=25' 08423+0857 J 382 distance=38' 08456+0915 J 2063 distance=46' 08398+0856 LDS3806 distance=58' 08440+0839 TDS6064 distance=58' 08412+0837 UC 122 distance=62' 08385+0936 GWP1055 distance=63' 08457+1029 TDS6081 distance=72' 08460+0833 KPP1972 distance=78' 08382+0849 SLW 273 distance=81' 08441+0816 SKF 499 distance=81' 08471+0845 STF1277 distance=82' 08436+0812 DAM1476 distance=83' 08417+1059 HJ 101 distance=83' 08440+0808 BRT2602 distance=88' 08367+0948 J 1007 distance=90' 08454+0812 GWP1077 distance=91' 08454+1055 UC 124 distance=91' 08476+1029 CVR1165 distance=91' 08391+1048 GWP1059 distance=93' 08378+1037 GWP1052 distance=97' 08437+1109 BRT1255 distance=98' 08389+0811 STF1252 distance=101' 08359+0947 KRU 3 distance=103' 08359+0955 STF1246 distance=104' 08357+0930 FAL 24 distance=105' 08358+0958 GWP1047 distance=107' 08474+0812 GWP1083 distance=107' 08466+0803 GRV 769 distance=107' 08480+0820 SKF 727 distance=108' 08495+0852 BU 1068AB distance=109' 08495+0852 BU 1068AB,C distance=109' 08410+0745 SKF 711 distance=112' 08365+0826 SKF 691 distance=115' 08504+0920 GRV 772 distance=115' 08472+1110 STF1276AB distance=117' 08472+1110 SLE1024AC distance=117' 08461+0748 J 735 distance=117' 08356+1024 BPM 449 distance=117' 08355+1027 CVR1152 distance=120' 08462+0744 LDS3817 distance=121' 08475+1111 SKF1709 distance=121' 08442+0732 TDS6065 distance=123' 08398+1131 ENG 36AB distance=126' 08367+1102 CVR 498 distance=127' 08449+0730 SLW 288 distance=128' 08398+1131 BUP 119BC distance=129' 08457+1134 CVR1162 distance=129' 08346+0847 TDS5948 distance=129' 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 08427+0935 ST 8 AB 30 1.7
Show 08427+0935 LUY6218 AB,C 96 114.6
Show 08427+0935 CRC 17 CD 144 5.6 2
Show 08440+0917 SKF 498 107 0.9 25
Show 08423+0857 J 382 43 4.3 38
Show 08456+0915 J 2063 114 7.6 46
Show 08398+0856 LDS3806 89 6.6 58
Show 08440+0839 TDS6064 99 0.6 58
Show 08412+0837 UC 122 281 20.9 62
Show 08385+0936 GWP1055 47 122.6 63
Show 08457+1029 TDS6081 114 0.6 72
Show 08460+0833 KPP1972 73 15.6 78
Show 08382+0849 SLW 273 308 12.9 81
Show 08441+0816 SKF 499 195 1.6 81
Show 08471+0845 STF1277 272 16.1 82
Show 08436+0812 DAM1476 204 0.8 83
Show 08417+1059 HJ 101 61 11.7 83
Show 08440+0808 BRT2602 162 3.5 88
Show 08367+0948 J 1007 239 5.0 90
Show 08454+0812 GWP1077 346 14.3 91
Show 08454+1055 UC 124 61 13.5 91
Show 08476+1029 CVR1165 58 4.4 91
Show 08391+1048 GWP1059 225 8.9 93
Show 08378+1037 GWP1052 190 66.6 97
Show 08437+1109 BRT1255 359 4.0 98
Show 08389+0811 STF1252 47 20.2 101
Show 08359+0947 KRU 3 168 14.2 103
Show 08359+0955 STF1246 116 10.6 104
Show 08357+0930 FAL 24 333 8.3 105
Show 08358+0958 GWP1047 143 12.9 107
Show 08474+0812 GWP1083 245 15.2 107
Show 08466+0803 GRV 769 153 18.3 107
Show 08480+0820 SKF 727 328 1.0 108
Show 08495+0852 BU 1068 AB 321 0.4 109
Show 08495+0852 BU 1068 AB,C 313 17.7 109
Show 08410+0745 SKF 711 76 1.4 112
Show 08365+0826 SKF 691 200 1.0 115
Show 08504+0920 GRV 772 175 20.2 115
Show 08472+1110 STF1276 AB 353 12.7 117
Show 08472+1110 SLE1024 AC 321 115.2 117
Show 08461+0748 J 735 340 2.8 117
Show 08356+1024 BPM 449 187 90.0 117
Show 08355+1027 CVR1152 123 3.9 120
Show 08462+0744 LDS3817 3 47.8 121
Show 08475+1111 SKF1709 50 1.5 121
Show 08442+0732 TDS6065 104 1.7 123
Show 08398+1131 ENG 36 AB 337 176.9 126
Show 08367+1102 CVR 498 1 11.5 127
Show 08449+0730 SLW 288 68 34.9 128
Show 08398+1131 BUP 119 BC 13 30.7 129
Show 08457+1134 CVR1162 202 3.4 129

 
 
WDS 08427+0935 : COMPONENTS
 
 
  A B C
B pa=29.5°
sep=1.69"
 
C pa=96.5°
sep=114.77"
pa=97.2°
sep=114.12"
 
D pa=98.5°
sep=118.59"
pa=99.2°
sep=118.00"
pa=144.4°
sep=5.59"
 
 
08427+0935 A
 
 
Coord arcsec 2000 084244.52+093324.1 Mag 9.7 Spectral class M0.5V (red) PmRA 224.00
PmDE -632.0 HIP 42748 Tycho2 0810-02829-1 BD BD+10 1857
Tycho2
Tycho2 0810-02829-1 Pflag RAmdeg 130.68553607 DEmdeg 9.55672020
PmRA 210.0 PmDE -623.3 E RAmdeg 21 E DEmdeg 27
E pmRA 1.6 E pmDE 1.5 EpRAm 1989.50 EpDEm 1986.99
Num 6 Q RAmdeg 0.4 Q DEmdeg 1.4 Q pmRA 0.4
Q pmDE 1.4 BTmag 11.454 E BTmag 0.072 VTmag 9.780
E VTmag 0.028 Prox 781 TYC T HIP 42748
CCDM RAdeg 130.68504528 DEdeg 9.55822222 EpRA 1990 1.70
EpDE 1990 1.32 E RAdeg 20.5 E DEdeg 27.5 Posflg
Corr 0.1
Hipparcos
Catalog H HIP 42748 Proxy RAhms 08 42 44.40
DEdms +09 33 29.7 Vmag 9.62 VarFlag R Vmag G
RAdeg 130.685 DEdeg 9.55824 AstroRef Plx 74.95
CCDM 08427+0933 N CCDM I Nsys 1 Ncomp 1
MultFlag X Source Qual S M HIP
Theta Rho HD BD BD+10 1857
CD CP Dm number +10 1857 VIred 1.85
SpType M0 R SpType Coord arcsec 2000 084244.40+093329.7
Hipparcos 2
HIP 42748 Sn 5 So 2 Nc 1
RArad 2.2808837391 DErad 0.1668227528 Plx 64.8 PmRA 214.59
PmDE -633.35 E RArad 2.14 E DErad 1.22 E Plx 2.35
E pmRA 3.05 E pmDE 1.91 Hpmag 9.6987 E Hpmag 0.0025
SHp 0.024 VA 0 BV 1.4 E BV 0.042
VI 1.85
 
 
08427+0935 B
 
 
Coord arcsec 2000 084244.58+093325.6 Mag 13.2 Spectral class M0V (red) PmRA 200.00
PmDE -575.0 Calc delta mag 3.5 Calc coord yes
 
 
08427+0935 C
 
 
Coord arcsec 2000 084252.23+093311.2 Coord calc 084252.23+093311.2 Mag 8.1 Spectral class M2.5V (red)
PmRA 223.00 PmDE -614.0 Calc delta mag 1.6
 
 
08427+0935 D
 
 
Coord arcsec 2000 084252.45+093306.7 HIP 42762 Calc delta mag 9.7 Calc coord yes
Hipparcos
Catalog H HIP 42762 Proxy RAhms 08 42 52.10
DEdms +09 33 16.5 Vmag 11.83 VarFlag R Vmag G
RAdeg 130.717 DEdeg 9.5546 AstroRef Plx 64.56
CCDM N CCDM Nsys Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD BD
CD CP Dm number VIred 2.44
SpType M5 R SpType Coord arcsec 2000 084252.10+093316.5
Hipparcos 2
HIP 42762 Sn 5 So 0 Nc 1
RArad 2.2814432335 DErad 0.1667591717 Plx 66.96 PmRA 224.38
PmDE -615.61 E RArad 3.6 E DErad 2 E Plx 3.91
E pmRA 5.15 E pmDE 3.02 Hpmag 11.7866 E Hpmag 0.0087
SHp 0.073 VA 0 BV 1.55 E BV 0.04
VI 2.44