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Current system
03006+4753
A 1529
HD 18549


Nearby doubles
27' : 02583+4740
J 886

37' : 03021+4827
HDS 387

39' : 03011+4715
A 1283

42' : 03007+4835
TDS2412

50' : 02557+4746
ES 1217AB

55' : 03000+4847
ALT 9

56' : 02594+4847
ALT 12

57' : 03011+4849
ALT 15

58' : 02594+4849
ALT 11

58' : 03040+4707
WFC 12

59' : 03058+4818
COU2016

59' : 03012+4852
HU 1051

59' : 03031+4846
LAD 5AB

60' : 03034+4846
LAD 3

60' : 02566+4710
STF 324AB

61' : 03022+4852
ALT 14

62' : 02591+4853
ALT 2

63' : 03036+4849
HU 541AB

64' : 03007+4650
HDS 383

65' : 02594+4856
COU2163

66' : 03001+4858
ALT 3

67' : 02588+4857
ALT 17

68' : 03067+4823
KPP 917

69' : 02580+4650
VLM 7

70' : 02580+4858
ALT 18

72' : 03018+4904
ALT 19



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.

03006+4753 A 1529 (HD 18549)

 
 
03h 00m 37.99s +47° 53' 06.4" P.A. 170.00 sep 0.2 mag 8.10,9.68 Sp A2 dist. 336.7 pc (1098.32 l.y.)
 
 
Coord 2000 03006+4753 Discov num A  1529 Comp Coord arcsec 2000 03 00 37.99 +47 53 06.4
Date first 1907 Date last 2017 Obs 23
Pa first 166 Pa last 169.9 P.A. Now (θ) 167.3°
Sep first 0.3 Sep last 0.211 Sep. Now (ρ) 0.311"
Mag pri 8.10 Mag sec 9.68 delta mag (ΔM) 1.58 Spectral class A2 (white)
Pri motion ra -008 Sec motion ra
Pri motion dec -012 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 18549 Constellation Perseus SAO 38504 HIP 14029
Tycho2 3314-01458-1 Gaia DR2 434579192038469248 HD 18549 ADS 2271
BD BD+47 752 Distance 336.7 Distance ly 1098.32
 
 
ORBITAL ELEMENTS
 
 
Period (P)105.48y± 2 Periastron (T)1966y± 5 Semi-major axis (a)0.159a± 0.005
Eccentricity (e)0.731± 0.1 Inclination (i)98°± 0.5 Longitude of periastron (ω)208.1°± 1.5
Node (Ω)165.4°± 3 Notesn ReferenceTam2006
Equinox2000 Last observation2004 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 163.6 0.245
2001 163.5 0.246
2002 163.3 0.248
2003 163.2 0.249
2004 163.1 0.250
2005 163.0 0.251
2006 162.8 0.251
2007 162.7 0.252
2008 162.6 0.252
2009 162.4 0.252
2010 162.3 0.252
2011 162.2 0.252
2012 162.0 0.251
2013 161.9 0.251
2014 161.8 0.250
2015 161.7 0.249
2016 161.5 0.248
2017 161.4 0.246
2018 161.3 0.245
2019 161.1 0.243
2020 161.0 0.241
2021 160.8 0.239
2022 160.7 0.237
2023 160.5 0.235
2024 160.4 0.232
2025 160.2 0.229
2026 160.1 0.227
2027 159.9 0.224
2028 159.8 0.221
2029 159.6 0.217
2030 159.4 0.214
2031 159.2 0.210
2032 159.0 0.206
2033 158.8 0.203
2034 158.6 0.198
2035 158.4 0.194
2036 158.2 0.190
2037 158.0 0.185
2038 157.7 0.180
2039 157.5 0.176
2040 157.2 0.170
2041 156.9 0.165
2042 156.6 0.160
2043 156.3 0.154
2044 155.9 0.149
2045 155.5 0.143
2046 155.1 0.137
2047 154.6 0.130
2048 154.1 0.124
2049 153.6 0.117
2050 152.9 0.111


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds03006%2B4753b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic