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Current system
05484+2052
STT 118 AB


Nearby doubles
8' : 05485+2059
TDS3353

12' : 05476+2056
BU 91AB

12' : 05489+2101
BU 93AB

15' : 05481+2106
BU 92

28' : 05485+2118
GIC 60

31' : 05474+2025
STJ 29

40' : 05505+2027
COU 372

40' : 05507+2027
J 1047

42' : 05462+2024
COU 371

43' : 05460+2119
STF 787AB

47' : 05484+2138
J 2732

51' : 05460+2015
STF 786AB

51' : 05458+2130
J 2731AB

52' : 05519+2037
HU 448

54' : 05482+2145
SLE 282

55' : 05494+2145
BRT2332

58' : 05479+1954
BRT2331

59' : 05524+2038
TDS3389

59' : 05511+2008
HU 40

60' : 05447+2121
KPP 30

61' : 05496+2150
AG 100

63' : 05472+2153
HU 39

63' : 05456+2141
J 1905

64' : 05476+2155
BKO 312AB

65' : 05491+1949
OCC9113AB

65' : 05528+2110
HDS 789



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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.

05484+2052 STT 118 AB

 
 
05h 48m 22.36s +20° 52' 10.3" P.A. 320.00 sep 0.1 mag 6.32,7.57 Sp B9Vn dist. 167.5 pc (546.38 l.y.)
 
 
Coord 2000 05484+2052 Discov num STT 118 Comp AB Coord arcsec 2000 05 48 22.36 +20 52 10.3
Date first 1843 Date last 2018 Obs 66
Pa first 335 Pa last 319.6 P.A. Now (θ) 319.6°
Sep first 0.4 Sep last 0.149 Sep. Now (ρ) 0.149"
Mag pri 6.32 Mag sec 7.57 delta mag (ΔM) 1.25 Spectral class B9Vn (blue-white)
Pri motion ra +007 Sec motion ra
Pri motion dec -018 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
05484+2052 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 77578 05 48 22 +20 52 10 STT 118 AB 2018 66 320 0.1 6.32 7.57 1.25 Y <===
Show HD 38693 77578 05 48 22 +20 52 10 STTA 67 AB,C 2013 33 162 75.4 6.01 8.29 2.28
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Taurus SAO 77578 HIP 27421 Tycho2 1311-02653-1
Gaia DR2 3400081795838800896 HD 38670 HR 1997 GC 7266
ADS 4392 BD BD+20 1105 Distance 167.5 Distance ly 546.38
 
 
ORBITAL ELEMENTS
 
 
Period (P)231.5y Periastron (T)2003y Semi-major axis (a)0.365a
Eccentricity (e)0.834 Inclination (i)91.2° Longitude of periastron (ω)351.2°
Node (Ω)137.9° Notesn ReferenceTok2017c
Equinox2000 Last observation2016 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 144.9 0.015
2001 140.2 0.034
2002 138.9 0.050
2003 138.1 0.060
2004 137.4 0.060
2005 136.7 0.053
2006 135.6 0.040
2007 133.3 0.026
2008 124.7 0.011
2009 346.1 0.006
2010 326.2 0.021
2011 323.1 0.036
2012 321.8 0.051
2013 321.1 0.066
2014 320.7 0.080
2015 320.3 0.094
2016 320.1 0.108
2017 319.9 0.121
2018 319.8 0.134
2019 319.6 0.147
2020 319.5 0.159
2021 319.5 0.171
2022 319.4 0.183
2023 319.3 0.195
2024 319.3 0.206
2025 319.2 0.217
2026 319.2 0.228
2027 319.1 0.238
2028 319.1 0.249
2029 319.0 0.259
2030 319.0 0.269


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


 
  


wds05484%2B2052e.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 05484+2052 STT 118 AB : NOTES
 
 
discov_num notes refcode
STT 118 A is a spectroscopic binary. A premature visual orbit has been
computed.
 
 
REFERENCES
 
 
refcode metd author reference
Tok2017c orb - Tokovinin, A. 2017IAUDS.193....1T
Tok2017c Inf. Circ. 193, 1, 2017
 
 
DISCOVERER
 
 
idgroup discov author
1 STT Struve, O.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
05484+2052 STT 118 AB 1991 59 306 0.1 6.32 7.57 B9Vn NOD 054822.36+205210.3
05484+2052 STT 118 AB 2014 62 141 0.1 6.32 7.57 B9Vn NOD 054822.36+205210.3
05484+2052 STT 118 AB 2015 63 140 0.1 6.32 7.57 B9Vn NOD 054822.36+205210.3
05484+2052 STT 118 AB 2016 64 320 0.1 6.32 7.57 B9Vn NO 054822.36+205210.3
05484+2052 STT 118 AB 2018 66 320 0.1 6.32 7.57 B9Vn NO 054822.36+205210.3

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

 
 
WDS 05484+2052 STT 118 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 05484+2052 STT 118 AB : MEASURES
 
 
No records found.

 
 
WDS 05484+2052 : VIRTUAL EYEPIECE
 
 

05484+2052 STT 118A mag 6.32 Sp B9Vn 05484+2052 STT 118B sep 0.1 P.A. 321.50 mag 7.57 05484+2052 STTA 67C sep 75.0 P.A. 163.00 mag 8.29 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 05484+2052 : ALADIN DSS IMAGE @ 05h 48m 22.36s +20° 52' 10.3"
 
 
 
 
WDS 05484+2052 STT 118 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

05484+2052 STT 118AB distance=0' 05485+2059 TDS3353 distance=8' 05476+2056 BU 91AB distance=12' 05476+2056 OCC9110Aa,Ab distance=12' 05489+2101 BU 93AB distance=12' 05489+2101 BU 93BC distance=12' 05489+2101 BU 93BD distance=12' 05481+2106 BU 92 distance=15' 05485+2118 GIC 60 distance=28' 05474+2025 STJ 29 distance=31' 05505+2027 COU 372 distance=40' 05507+2027 J 1047 distance=40' 05460+2119 ARY 6DF distance=41' 05462+2024 COU 371 distance=42' 05460+2119 STF 787AB distance=43' 05460+2119 STF 787AC distance=43' 05460+2119 ARY 6AD distance=43' 05460+2119 ARY 6AE distance=43' 05484+2138 J 2732 distance=47' 05460+2015 STF 786AB distance=51' 05460+2015 WAL 40AC distance=51' 05458+2130 J 2731AB distance=51' 05458+2130 J 2731AC distance=51' 05519+2037 HU 448 distance=52' 05482+2145 SLE 282 distance=54' 05494+2145 BRT2332 distance=55' 05524+2042 OCC 627Da,Db distance=58' 05524+2042 DAM1338DI distance=58' 05479+1954 BRT2331 distance=58' 05524+2038 TDS3389 distance=59' 05511+2008 HU 40 distance=59' 05447+2121 KPP 30 distance=60' 05496+2150 AG 100 distance=61' 05472+2153 HU 39 distance=63' 05456+2141 J 1905 distance=63' 05476+2155 BKO 312CD distance=64' 05476+2155 BKO 312AB distance=64' 05491+1949 OCC9113AB distance=65' 05491+1949 OCC9113AC distance=65' 05528+2110 HDS 789 distance=65' 05478+2156 BKO 313 distance=65' 05530+2047 ARY 39AB distance=65' 05530+2047 ARY 39AC distance=65' 05494+1949 BRT2333 distance=66' 05523+2018 BRT2334 distance=66' 05477+2157 SLE 280 distance=66' 05436+2042 A 2112AB distance=68' 05436+2042 A 2112AC distance=68' 05480+2204 CVR 60 distance=72' 05449+2149 TDS3322 distance=75' 05533+2018 RBR 37 distance=78' 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 05484+2052 STT 118 AB 320 0.1
Show 05484+2052 STTA 67 AB,C 162 75.4
Show 05485+2059 TDS3353 252 1.2 8
Show 05476+2056 BU 91 AB 89 1.5 12
Show 05476+2056 OCC9110 Aa,Ab -1 0.0 12
Show 05489+2101 BU 93 AB 122 60.0 12
Show 05489+2101 BU 93 BC 162 6.1 12
Show 05489+2101 BU 93 BD 328 10.3 12
Show 05481+2106 BU 92 171 9.6 15
Show 05485+2118 GIC 60 177 80.8 28
Show 05474+2025 STJ 29 21 1.5 31
Show 05505+2027 COU 372 30 1.1 40
Show 05507+2027 J 1047 286 2.2 40
Show 05460+2119 ARY 6 DF 268 60.4 41
Show 05462+2024 COU 371 60 0.7 42
Show 05460+2119 STF 787 AB 54 0.6 43
Show 05460+2119 STF 787 AC 31 15.5 43
Show 05460+2119 ARY 6 AD 160 124.5 43
Show 05460+2119 ARY 6 AE 233 72.9 43
Show 05484+2138 J 2732 325 7.4 47
Show 05460+2015 STF 786 AB 336 6.5 51
Show 05460+2015 WAL 40 AC 332 16.4 51
Show 05458+2130 J 2731 AB 40 5.2 51
Show 05458+2130 J 2731 AC 248 6.3 51
Show 05519+2037 HU 448 238 2.5 52
Show 05482+2145 SLE 282 147 13.8 54
Show 05494+2145 BRT2332 10 2.8 55
Show 05524+2042 OCC 627 Da,Db -1 0.1 58
Show 05524+2042 DAM1338 DI 57 22.2 58
Show 05479+1954 BRT2331 204 4.9 58
Show 05524+2038 TDS3389 97 0.5 59
Show 05511+2008 HU 40 17 3.7 59
Show 05447+2121 KPP 30 224 5.6 60
Show 05496+2150 AG 100 240 32.5 61
Show 05472+2153 HU 39 21 0.2 63
Show 05456+2141 J 1905 265 5.9 63
Show 05476+2155 BKO 312 CD 104 3.2 64
Show 05476+2155 BKO 312 AB 222 5.3 64
Show 05491+1949 OCC9113 AB -1 0.0 65
Show 05491+1949 OCC9113 AC -1 0.0 65
Show 05528+2110 HDS 789 251 10.6 65
Show 05478+2156 BKO 313 158 10.6 65
Show 05530+2047 ARY 39 AB 185 33.4 65
Show 05530+2047 ARY 39 AC 301 117.3 65
Show 05494+1949 BRT2333 268 2.9 66
Show 05523+2018 BRT2334 79 3.6 66
Show 05477+2157 SLE 280 233 11.6 66
Show 05436+2042 A 2112 AB 328 3.9 68
Show 05436+2042 A 2112 AC 100 20.9 68
Show 05480+2204 CVR 60 318 87.9 72
Show 05449+2149 TDS3322 90 0.6 75

 
 
WDS 05484+2052 : COMPONENTS
 
 
  A B
B pa=321.5°
sep=0.14"
 
C pa=163.0°
sep=74.95"
pa=163.0°
sep=75.09"
 
 
05484+2052 A
 
 
Coord arcsec 2000 054822.36+205210.3 Mag 6.32 Spectral class B9Vn (blue-white) PmRA 7.00
PmDE -18.0 SAO 77578 HIP 27421 Tycho2 1311-02653-1
HD 38670 HR 1997 GC 7266 BD BD+20 1105
Tycho2
Tycho2 1311-02653-1 Pflag RAmdeg 87.09320537 DEmdeg 20.86947509
PmRA 10.0 PmDE -19.9 E RAmdeg 4 E DEmdeg 4
E pmRA 0.9 E pmDE 0.9 EpRAm 1991.42 EpDEm 1991.37
Num 17 Q RAmdeg 1.0 Q DEmdeg 1.2 Q pmRA 1.0
Q pmDE 1.1 BTmag 5.944 E BTmag 0.015 VTmag 6.011
E VTmag 0.010 Prox 754 TYC T HIP 27421
CCDM AB RAdeg 87.09318083 DEdeg 20.86952083 EpRA 1990 1.76
EpDE 1990 1.71 E RAdeg 3.7 E DEdeg 4.1 Posflg P
Corr -0.1
SAO
SAO 77578 DelFlag RA1950 PmRA1950 0.0011
DE1950 PmDE1950 -0.017 Vmag 5.9 SpType B9
Double code Source 70 CatNum 7266 DM BD+20 1105
DMcomp BDsup HD 38670 M HD 0
GC 7266 RA1950rad 1.50703345 DE1950rad 0.36396742 PmRA2000 0.001
PmDE2000 -0.016
Hipparcos
Catalog H HIP 27421 Proxy H RAhms 05 48 22.36
DEdms +20 52 10.3 Vmag 6.03 VarFlag R Vmag H
RAdeg 87.0932 DEdeg 20.8695 AstroRef * Plx 5.48
CCDM 05484+2052 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source S Qual A M HIP AB
Theta 306 Rho 0.137 HD 38670 BD BD+20 1105
CD CP Dm number +20 1105 VIred -0.04
SpType B9Vn R SpType Coord arcsec 2000 054822.36+205210.3
Hipparcos 2
HIP 27421 Sn 55 So 3 Nc 2
RArad 1.5200627027 DErad 0.3642419125 Plx 5.97 PmRA 8.03
PmDE -17.98 E RArad 0.64 E DErad 0.45 E Plx 0.73
E pmRA 0.86 E pmDE 0.54 Hpmag 6.0194 E Hpmag 0.0008
SHp 0.005 VA 0 BV -0.051 E BV 0.006
VI -0.03
CCDM
Ccdm 05484+2052 RComp Comp A Note1
Note2 Discov num DRAs -1.70 DDEs 10.5
R dRAs 10 Year Theta Rho
Obs 3 Vmag 6.1 Sp B9 PmNote *
PmRA -3 PmDE -13 Dm number +20 1105 Cat1 BD
Name2 +20 568 Cat2 AGK2/3 HD 38670 M HD
ADS BDS A 4392 M ADS BDS N IDS IDS 05424N2050A
HIC 27421
 
 
05484+2052 B
 
 
Coord arcsec 2000 054822.35+205210.4 Mag 7.57 Calc delta mag 1.25 Calc coord yes
CCDM
Ccdm 05484+2052 RComp Comp B Note1
Note2 Discov num STT 118 DRAs DDEs
R dRAs Year 1854 Theta 318 Rho 0.6
Obs 17 Vmag 7.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 4392 M ADS BDS N IDS IDS 05424N2050B
HIC 27421
 
 
05484+2052 C
 
 
Coord arcsec 2000 054823.92+205058.6 Mag 8.29 PmRA 9.00 PmDE -20.0
SAO 77579 Tycho2 1311-03147-1 HD 38693 DM BD+20 1106
Calc delta mag 1.97 Calc coord yes
Tycho2
Tycho2 1311-03147-1 Pflag RAmdeg 87.10017786 DEmdeg 20.84957241
PmRA 9.1 PmDE -20.6 E RAmdeg 7 E DEmdeg 9
E pmRA 1.0 E pmDE 1.0 EpRAm 1990.79 EpDEm 1990.24
Num 13 Q RAmdeg 0.9 Q DEmdeg 0.8 Q pmRA 1.0
Q pmDE 0.9 BTmag 8.390 E BTmag 0.019 VTmag 8.289
E VTmag 0.015 Prox 754 TYC T HIP
CCDM RAdeg 87.10015528 DEdeg 20.84961944 EpRA 1990 1.84
EpDE 1990 1.77 E RAdeg 6.7 E DEdeg 8.6 Posflg
Corr -0.1
SAO
SAO 77579 DelFlag RA1950 PmRA1950 0.001
DE1950 PmDE1950 -0.021 Vmag 8.5 SpType A0
Double code Source 35 CatNum 1973 DM BD+20 1106
DMcomp BDsup HD 38693 M HD 0
GC RA1950rad 1.50715583 DE1950rad 0.3636208 PmRA2000 0.0009
PmDE2000 -0.02
CCDM
Ccdm 05484+2052 RComp Comp C Note1
Note2 Discov num STT4067 DRAs -0.02 DDEs -62.2
R dRAs 10 Year 1849 Theta 161 Rho 75.5
Obs 11 Vmag 8.6 Sp A PmNote *
PmRA -6 PmDE -31 Dm number +20 1106 Cat1 BD
Name2 +20 569 Cat2 AGK2/3 HD 38693 M HD
ADS BDS A 4392 M ADS BDS N IDS IDS 05424N2050C
HIC