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Current system
04275+1113
BU 1186
HD 28217


Nearby doubles
18' : 04266+1125
LDS5560

21' : 04285+1059
HEI 457

23' : 04268+1052
PAT 8

27' : 04259+1123
GWP 584

31' : 04295+1113
GWP 590

32' : 04278+1144
MET 39

34' : 04288+1045
GWP 587

34' : 04275+1039
STZ 7

59' : 04237+1131
LSC 30

63' : 04233+1123
STF 535

64' : 04256+1210
ITO 27

67' : 04297+1211
HDS 578

69' : 04300+1016
LDS5568

69' : 04317+1044
LDS5571

69' : 04280+1004
A 2033

72' : 04278+1001
STF 549AB

75' : 04224+1118
PAT 5

78' : 04248+1219
RED 30

79' : 04274+1232
LDS5562

81' : 04324+1038
HDS 588

83' : 04261+1233
SKF1807

85' : 04224+1153
WIS 105

88' : 04296+1234
LDS5567

90' : 04268+1240
WOR 15

90' : 04217+1046
TOK 84

96' : 04246+1238
LDS5553



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.

04275+1113 BU 1186 (HD 28217)

 
 
04h 27m 28.77s +11° 12' 44.4" P.A. 78.00 sep 0.1 mag 6.07,7.94 Sp B8IV dist. 180.18 pc (587.75 l.y.)
 
 
Coord 2000 04275+1113 Discov num BU 1186 Comp Coord arcsec 2000 04 27 28.77 +11 12 44.4
Date first 1890 Date last 1996 Obs 41
Pa first 182 Pa last 78.1 P.A. Now (θ) 78.1°
Sep first 0.6 Sep last 0.127 Sep. Now (ρ) 0.127"
Mag pri 6.07 Mag sec 7.94 delta mag (ΔM) 1.87 Spectral class B8IV (blue-white)
Pri motion ra -005 Sec motion ra
Pri motion dec -008 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 28217 Constellation Taurus SAO 93943 HIP 20804
Tycho2 0672-01283-1 Gaia DR2 3306058021059565568 HD 28217 HR 1402
GC 5408 ADS 3228 BD BD+10 577 Distance 180.18
Distance ly 587.75
 
 
ORBITAL ELEMENTS
 
 
Period (P)160.59y Periastron (T)2005.8y Semi-major axis (a)0.401a
Eccentricity (e)0.74 Inclination (i)118.6° Longitude of periastron (ω)27.3°
Node (Ω)5.4° Notesn ReferenceOle2005a
Equinox2000 Last observation1996 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 45.2 0.114
2001 36.4 0.115
2002 27.8 0.116
2003 19.2 0.116
2004 10.4 0.113
2005 0.7 0.105
2006 348.9 0.093
2007 332.7 0.077
2008 309.4 0.065
2009 280.5 0.064
2010 255.4 0.075
2011 238.5 0.093
2012 227.7 0.115
2013 220.3 0.138
2014 215.1 0.160
2015 211.1 0.183
2016 208.0 0.204
2017 205.5 0.225
2018 203.4 0.244
2019 201.6 0.263
2020 200.0 0.282
2021 198.6 0.299
2022 197.4 0.316
2023 196.3 0.332
2024 195.3 0.347
2025 194.4 0.362
2026 193.5 0.376
2027 192.7 0.390
2028 192.0 0.403
2029 191.3 0.416
2030 190.6 0.428


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


 
  


wds04275%2B1113a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic