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Current system
03177+3838
STT 53 AB
HD 20347


Nearby doubles
18' : 03166+3826
TDS2512

26' : 03155+3840
AG 64

28' : 03200+3845
BRT2205

36' : 03203+3857
KPP 97

42' : 03159+3805
WEY 1

47' : 03211+3902
ALI 775

49' : 03138+3854
ITF 91

50' : 03138+3856
ITF 85AB

51' : 03148+3802
TDS2495

58' : 03136+3909
STF 364

58' : 03128+3836
ALI 771

59' : 03191+3934
MET 26AB

62' : 03170+3939
LDS2840

67' : 03234+3847
ALI 776

69' : 03236+3829
LDS3486

71' : 03123+3808
ES 2457

74' : 03227+3922
MLB 918AB

74' : 03208+3943
RAO 187

77' : 03115+3900
UC 963

77' : 03135+3938
LDS2837

79' : 03156+3724
BWL 13AB

79' : 03134+3738
CRB 56

82' : 03198+3956
LDS2841

82' : 03138+3733
AG 63AB

83' : 03113+3805
ALI 514

87' : 03245+3804
RAO 188



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.

03177+3838 STT 53 AB (HD 20347)

 
 
03h 17m 44.01s +38° 38' 21.1" P.A. 232.00 sep 0.6 mag 7.73,8.50 Sp G0 dist. 60.1 pc (196.05 l.y.)
 
 
Coord 2000 03177+3838 Discov num STT  53 Comp AB Coord arcsec 2000 03 17 44.01 +38 38 21.1
Date first 1843 Date last 2018 Obs 151
Pa first 270 Pa last 231.9 P.A. Now (θ) 225°
Sep first 0.7 Sep last 0.55 Sep. Now (ρ) 0.518"
Mag pri 7.73 Mag sec 8.50 delta mag (ΔM) 0.77 Spectral class G0 (yellow)
Pri motion ra +112 Sec motion ra +112
Pri motion dec -044 Sec motion dec -044
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
03177+3838 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 20347 56320 03 17 44 +38 38 21 STT 53 AB 2018 151 232 0.6 7.73 8.50 0.77 Y <===
Show 56320 03 17 44 +38 38 21 TOK 237 AC 2002 6 180 106.6 7.73 13.34 5.61
Show 03 17 44 +38 36 34 RAO 10 Ca,Cb 2016 3 222 1.6 13.00 17.00 4.00
Quadruple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 20347 Constellation Perseus SAO 56320 HIP 15329
Tycho2 2848-01379-1 Gaia DR2 235543604311944320 HD 20347 GC 3926
ADS 2446 BD BD+38 689 Distance 60.1 Distance ly 196.05
 
 
ORBITAL ELEMENTS
 
 
Period (P)114.3y± 0.96 Periastron (T)1931.8y± 1 Semi-major axis (a)0.71a± 0.024
Eccentricity (e)0.86± 0.01 Inclination (i)121.7°± 1.7 Longitude of periastron (ω)70.9°± 2.1
Node (Ω)135.1°± 3 Notesn ReferenceRbr2018
Equinox2000 Last observation Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 250.3 0.726
2001 249.5 0.719
2002 248.6 0.712
2003 247.8 0.705
2004 246.9 0.698
2005 246.0 0.690
2006 245.1 0.682
2007 244.2 0.674
2008 243.3 0.666
2009 242.3 0.657
2010 241.3 0.649
2011 240.3 0.640
2012 239.2 0.631
2013 238.1 0.621
2014 237.0 0.612
2015 235.8 0.602
2016 234.7 0.592
2017 233.4 0.582
2018 232.1 0.572
2019 230.8 0.561
2020 229.4 0.551
2021 228.0 0.540
2022 226.5 0.529
2023 225.0 0.518
2024 223.3 0.506
2025 221.6 0.494
2026 219.8 0.483
2027 218.0 0.471
2028 216.0 0.459
2029 213.9 0.446
2030 211.7 0.434


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


 
  


wds03177%2B3838f.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 03177+3838 STT 53 AB (HD 20347) : NOTES
 
 
discov_num notes refcode
STT 53 Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
masses of 2.51 +/- 0.99, 2.40, and 1.05 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
Rbr2018 A j Roberts, L.C., Jr. & Mason, B.D. 2018MNRAS.473.4497R
Rbr2018 +orb MNRAS 473, 4497, 2018
 
 
DISCOVERER
 
 
idgroup discov author
1 RAO Robo AO (Palomar 60" AO project or KPNO 2.1m)
1 RAO Law, N.M., Morton, T., Baranec, C., Riddle, R., Ravichandran, G., Ziegler, C.,
1 RAO Johnson, J.A., Tendulkar, S.P., Bui, K., Burse, M.P., Das, H., Dekany, R., et al.
2 RAO Riddle, R.L., Tokovinin, A., Mason, B.D., Hartkopf, W.I., Roberts, L.C., Jr.,
2 RAO Baranec, C., Law, N.M., Bui, K., Burse, M.P., Das, H.K., Dekany, R.G.,
2 RAO Kulkarni, S., Punnadi, S., Ramaprakash, A.N., & Tendulkar, S.P.
7 RAO Baranec, C., Ziegler, C., Law, N.M., Morton, T., Riddle, R.L., Atkinson, D.,
7 RAO Schonhut, J., & Crepp, J.
8 RAO Ziegler, C., Law, N.M., Nicholas, M., Morton, T., Baranec, C., Riddle, R.L.,
8 RAO Atkinson, D., Baker, A., Roberts, S., & Ciardi, D.R.
9 RAO Schonhut-Stasik, J.S., Baranec, C., Huber, D., Ziegler, C., Atkinson, D., Gaidos,
9 RAO E., Law, N.M., Riddle, R., Hagelberg, J., van der Marel, N., & Hodapp, K.W.
10 RAO Hillenbrand, L.A., Zhang, C., Riddle, R.L., Baranec, C., Ziegler, C., Law, N.M. &
10 RAO Stauffer, J.
12 RAO Ziegler, C., Law, N.M., Baranec, C., Riddle, R., Duev, D.A., Howard, W.,
12 RAO Jensen-Clem, R., Kulkarni, S.R., Morton, T. & Salama, M.
13 RAO Ziegler, C., Law, N.M., Baranec, C., Morton, T., Riddle, R., De Lee, N., Huber, D.,
13 RAO Mahadevan, S. & Pepper, J.
14 RAO Bowler, B.P., Hinkley, S., Ziegler, C., Baranec, C., Gizis, J.E., Law, N.M., Liu,
14 RAO M.C., Shah, V.S., Shkolnik, E.L., Riaz, B. & Riddle, R.
15 RAO Schonhut-Stasik, J.S., Huber, D., Baranec, C., Lamman, C., Salama, M., Jensen-Clem,
15 RAO R., Duev, D.A., Riddle, R., Kulkarni, S.R. & Law, N.M.
16 RAO Lamman, C., Baranec, C., Berta-Thompson, Z.K., Law, N.M., Schonhut-Stasik, J.,
16 RAO Ziegler, C., Salama, M., Jensen-Clem, R., Duev, D.A., Riddle, R., Kulkarni, S.R.,
16 RAO Winters, J.G. & Irwin, J.M.
19 RAO Salama, M., Ou, J., Barance, C., Liu, M.C., Bowler, B.P., Barnes, P., Bonnet, M.,
19 RAO Chun, M., Duev, D.A., Goebel, S., Hall, D., Jacobson, S., Jensen-Clem, R., Law,
19 RAO N.M., Lockhart, C., Riddle, R., Situ, H., Warmbier, E. & Zhang, Z.
20 RAO Salama, M., Ziegler, C., Baranec, C., Liu, M.C., Law, N.M., Riddle, R., Henry,
20 RAO T.J., Winters, J.G., Jao, W.-C., Ou, J. & Ruiz, A.H.
21 STT Struve, O.
58 TOK Tokovinin, A.A.
105 TOK Tokovinin, A.A., Balega, Y.Y., Pluzhnik, E.A., Shatsky, N.I., Gorynya, N.A., &
105 TOK Weigelt, G.
119 TOK Tokovinin, A., Cantarutti, R., Tighe, R., Schurter, P., van der Bliek, N.,
119 TOK Martinez, M., & Mondaca, E.
187 TOK Tokovinin, A., Corbett, H., Fors, O., Howard, W., Law, N.M., Moe, M.,
187 TOK Ratzloff, J. & Walter, F.M.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
03177+3838 STT 53 AB 2012 143 237 0.6 7.73 8.50 G0 NO 031744.01+383821.1
03177+3838 STT 53 AB 2014 144 237 0.6 7.73 8.50 G0 NO 031744.01+383821.1
03177+3838 STT 53 AB 2016 149 233 0.6 7.73 8.50 G0 NO 031744.01+383821.1
03177+3838 STT 53 AB 2018 151 232 0.5 7.73 8.50 G0 NO 031744.01+383821.1

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

 
 
WDS 03177+3838 STT 53 AB (HD 20347) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 03177+3838 STT 53 AB (HD 20347) : MEASURES
 
 
No records found.

 
 
WDS 03177+3838 (HD 20347) : VIRTUAL EYEPIECE
 
 

03177+3838 STT 53A mag 7.73 Sp G0 03177+3838 STT 53B sep 0.5 P.A. 224.90 mag 8.5 03177+3838 RAO 10C sep 106.9 P.A. 179.80 mag 13 03177+3838 RAO 10Cb sep 108.1 P.A. 180.30 mag 17 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 03177+3838 (HD 20347) : ALADIN DSS IMAGE @ 03h 17m 44.01s +38° 38' 21.1"
 
 
 
 
WDS 03177+3838 STT 53 AB (HD 20347) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

03177+3838 STT 53AB distance=0' 03177+3838 RAO 10Ca,Cb distance=2' 03166+3826 TDS2512 distance=18' 03155+3840 AG 64 distance=26' 03200+3845 BRT2205 distance=28' 03203+3857 KPP 97 distance=36' 03159+3805 WEY 1 distance=42' 03211+3902 ALI 775 distance=47' 03138+3854 ITF 91 distance=49' 03138+3856 ITF 85AB distance=50' 03138+3856 ITF 85AC distance=50' 03148+3802 TDS2495 distance=51' 03138+3856 UC 43BC distance=51' 03136+3909 STF 364 distance=58' 03128+3836 ALI 771 distance=58' 03191+3934 MET 26AB distance=59' 03191+3934 MET 26AC distance=59' 03170+3939 LDS2840 distance=62' 03234+3847 ALI 776 distance=67' 03236+3829 LDS3486 distance=69' 03123+3808 ES 2457 distance=71' 03227+3922 MLB 918AB distance=74' 03227+3922 MLB 918AC distance=74' 03208+3943 RAO 187 distance=74' 03115+3900 UC 963 distance=77' 03135+3938 LDS2837 distance=77' 03156+3724 BWL 13AB distance=79' 03156+3724 BWL 13AC distance=79' 03134+3738 CRB 56 distance=79' 03198+3956 LDS2841 distance=82' 03138+3733 COU1075Aa,Ab distance=82' 03138+3733 AG 63AB distance=82' 03113+3805 ALI 514 distance=83' 03245+3804 RAO 188 distance=87' 03252+3837 COU1383 distance=88' 03253+3825 ES 2147 distance=90' 03113+3937 BLL 10 (Gorgonea quarta) distance=96' 03237+3946 ALI1033 distance=97' 03128+3720 WZ 6 distance=101' 03208+4015 ALI1032 distance=104' 03247+3946 LDS2847 distance=106' 03223+4010 LDS2845 distance=107' 03161+3654 COU1076 distance=107' 03122+3713 STF 360 distance=108' 03120+3713 TDS2475 distance=110' 03171+4029 STF 369 distance=111' 03171+3648 ES 2557AC distance=111' 03171+3648 DAM 33AB distance=111' 03183+3646 ALI 279 distance=113' 03085+3910 AG 62BC distance=113' 03085+3910 AG 62AB distance=113' 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 03177+3838 STT 53 AB 232 0.6
Show 03177+3838 TOK 237 AC 180 106.6
Show 03177+3838 RAO 10 Ca,Cb 222 1.6 2
Show 03166+3826 TDS2512 118 0.5 18
Show 03155+3840 AG 64 238 8.8 26
Show 03200+3845 BRT2205 157 5.5 28
Show 03203+3857 KPP 97 205 3.7 36
Show 03159+3805 WEY 1 259 1.0 42
Show 03211+3902 ALI 775 192 12.5 47
Show 03138+3854 ITF 91 263 5.4 49
Show 03138+3856 ITF 85 AB 229 182.8 50
Show 03138+3856 ITF 85 AC 241 234.4 50
Show 03148+3802 TDS2495 258 0.5 51
Show 03138+3856 UC 43 BC 274 65.8 51
Show 03136+3909 STF 364 311 11.7 58
Show 03128+3836 ALI 771 193 9.1 58
Show 03191+3934 MET 26 AB 287 7.7 59
Show 03191+3934 MET 26 AC 334 10.2 59
Show 03170+3939 LDS2840 321 32.2 62
Show 03234+3847 ALI 776 341 13.1 67
Show 03236+3829 LDS3486 98 289.4 69
Show 03123+3808 ES 2457 19 4.2 71
Show 03227+3922 MLB 918 AB 320 6.1 74
Show 03227+3922 MLB 918 AC 125 40.8 74
Show 03208+3943 RAO 187 294 0.8 74
Show 03115+3900 UC 963 233 49.7 77
Show 03135+3938 LDS2837 194 3.0 77
Show 03156+3724 BWL 13 AB 338 2.0 79
Show 03156+3724 BWL 13 AC 318 6.7 79
Show 03134+3738 CRB 56 135 16.9 79
Show 03198+3956 LDS2841 344 17.0 82
Show 03138+3733 COU1075 Aa,Ab 40 0.9 82
Show 03138+3733 AG 63 AB 130 5.2 82
Show 03113+3805 ALI 514 210 12.2 83
Show 03245+3804 RAO 188 322 2.7 87
Show 03252+3837 COU1383 284 0.8 88
Show 03253+3825 ES 2147 54 2.9 90
Show Gorgonea quarta 03113+3937 BLL 10 112 180.8 96
Show 03237+3946 ALI1033 284 5.8 97
Show 03128+3720 WZ 6 202 7.0 101
Show 03208+4015 ALI1032 260 7.8 104
Show 03247+3946 LDS2847 164 65.6 106
Show 03223+4010 LDS2845 116 9.2 107
Show 03161+3654 COU1076 91 1.1 107
Show 03122+3713 STF 360 124 3.0 108
Show 03120+3713 TDS2475 138 2.6 110
Show 03171+4029 STF 369 29 3.6 111
Show 03171+3648 ES 2557 AC 60 3.4 111
Show 03171+3648 DAM 33 AB 65 1.5 111
Show 03183+3646 ALI 279 333 5.6 113
Show 03085+3910 AG 62 BC 216 23.9 113

 
 
WDS 03177+3838 : COMPONENTS
 
 
  A B C
B pa=224.9°
sep=0.48"
 
C pa=179.8°
sep=106.90"
pa=179.6°
sep=106.56"
 
Cb pa=180.3°
sep=108.09"
pa=180.1°
sep=107.75"
pa=215.5°
sep=1.47"
 
 
03177+3838 A
 
 
Name HD 20347 Coord arcsec 2000 031744.01+383821.1 Mag 7.73 Spectral class G0 (yellow)
PmRA 112.00 PmDE -44.0 SAO 56320 HIP 15329
Tycho2 2848-01379-1 HD 20347 GC 3926 ADS 2446
BD BD+38 689
Tycho2
Tycho2 2848-01379-1 Pflag P RAmdeg 49.43333249 DEmdeg 38.63918667
PmRA 112.1 PmDE -44.2 E RAmdeg 5 E DEmdeg 6
E pmRA 2.4 E pmDE 2.2 EpRAm 1991.62 EpDEm 1991.41
Num 5 Q RAmdeg 1.4 Q DEmdeg 2.0 Q pmRA 1.5
Q pmDE 2.0 BTmag 8.398 E BTmag 0.017 VTmag 7.730
E VTmag 0.012 Prox 8 TYC T HIP 15329
CCDM A RAdeg 49.43307361 DEdeg 38.63930500 EpRA 1990 1.70
EpDE 1990 1.54 E RAdeg 5.3 E DEdeg 6.0 Posflg D
Corr -0.1
SAO
SAO 56320 DelFlag RA1950 PmRA1950 0.0102
DE1950 PmDE1950 -0.035 Vmag 7.3 SpType G0
Double code Source 70 CatNum 3926 DM BD+38 689
DMcomp BDsup HD 20347 M HD 0
GC 3926 RA1950rad 0.84863506 DE1950rad 0.67120707 PmRA2000 0.0102
PmDE2000 -0.038
Hipparcos
Catalog H HIP 15329 Proxy H RAhms 03 17 43.94
DEdms +38 38 21.5 Vmag 7.26 VarFlag R Vmag H
RAdeg 49.4331 DEdeg 38.6393 AstroRef A Plx 13.94
CCDM 03177+3838 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 256 Rho 0.798 HD 20347 BD BD+38 689
CD CP Dm number +38 689 VIred 0.68
SpType G0 R SpType Coord arcsec 2000 031743.94+383821.5
Hipparcos 2
HIP 15329 Sn 15 So 3 Nc 2
RArad 0.8627697446 DErad 0.6743831973 Plx 16.64 PmRA 108.55
PmDE -38.83 E RArad 1.59 E DErad 0.75 E Plx 1.61
E pmRA 2.39 E pmDE 1.51 Hpmag 7.3841 E Hpmag 0.0013
SHp 0.01 VA 0 BV 0.609 E BV 0
VI 0.68
CCDM
Ccdm 03177+3838 RComp Comp A Note1
Note2 Discov num DRAs 1.94 DDEs 19.8
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.7 Sp G0 PmNote *
PmRA 104 PmDE -62 Dm number +38 689 Cat1 BD
Name2 +38 371 Cat2 AGK2/3 HD 20347 M HD
ADS BDS A 2446 M ADS BDS N IDS IDS 03113N3816A
HIC 15329
 
 
03177+3838 B
 
 
Coord arcsec 2000 031743.98+383820.8 Mag 8.5 PmRA 112.00 PmDE -44.0
Tycho2 2848-01379-2 Calc delta mag 0.77 Calc coord yes
Tycho2
Tycho2 2848-01379-2 Pflag P RAmdeg 49.43333249 DEmdeg 38.63918667
PmRA 112.1 PmDE -44.2 E RAmdeg 5 E DEmdeg 6
E pmRA 2.4 E pmDE 2.2 EpRAm 1991.62 EpDEm 1991.41
Num 5 Q RAmdeg 1.4 Q DEmdeg 2.0 Q pmRA 1.5
Q pmDE 2.0 BTmag 9.120 E BTmag 0.019 VTmag 8.497
E VTmag 0.015 Prox 8 TYC T HIP 15329
CCDM B RAdeg 49.43279444 DEdeg 38.63924889 EpRA 1990 1.70
EpDE 1990 1.54 E RAdeg 7.5 E DEdeg 8.8 Posflg D
Corr -0.1
CCDM
Ccdm 03177+3838 RComp Comp B Note1 *
Note2 Discov num STT 53 DRAs DDEs
R dRAs Year 1845 Theta Rho
Obs 99 Vmag 8.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 2446 M ADS BDS N IDS IDS 03113N3816B
HIC 15329
 
 
03177+3838 C
 
 
Coord arcsec 2000 031744.04+383634.2 Coord calc 031744.05+383634.5 Mag 13 Mag composta 13.34
PmRA 107.00 PmDE -42.0 Calc delta mag 5.27
 
 
03177+3838 Cb
 
 
Coord arcsec 2000 031743.97+383633.0 Mag 17 Calc delta mag 9.27 Calc coord yes