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Doubles in session


Current system
04460-6605
HDS 613
HD 30805


Nearby doubles
10' : 04475-6607
TDS 147

24' : 04497-6558
TDS2980

40' : 04501-6635
OGL 238

40' : 04395-6601
DON 76AB

43' : 04436-6645
UC 1205

46' : 04486-6648
OGL 232

47' : 04453-6519
UC 1209

47' : 04519-6635
OGL 245

51' : 04377-6607
HJ 3682AB

52' : 04503-6649
OGL 239AB

55' : 04412-6519
HJ 3689AB

57' : 04423-6657
OGL 220

59' : 04515-6653
OGL 242

62' : 04431-6506
KPP 915

65' : 04565-6611
UC 1237

66' : 04501-6505
RST 114

68' : 04557-6637
OGL 258

68' : 04535-6655
HJ 3710

69' : 04566-6629
DON 89AB

69' : 04566-6628
UC 1239

71' : 04569-6629
UC 1241

71' : 04344-6612
HDS 595

72' : 04521-6706
OGL 246

72' : 04506-6711
OGL 240

74' : 04379-6701
OGL 210

74' : 04419-6714
OGL 219



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.

04460-6605 HDS 613 (HD 30805)

 
 
04h 45m 59.13s -66° 04' 43.6" P.A. 234.00 sep 0.2 mag 8.12,8.35 Sp F3V dist. 85.69 pc (279.52 l.y.)
 
 
Coord 2000 04460-6605 Discov num HDS 613 Comp Coord arcsec 2000 04 45 59.13 -66 04 43.6
Date first 1991 Date last 2020 Obs 5
Pa first 215 Pa last 234.3 P.A. Now (θ) 47.3°
Sep first 0.2 Sep last 0.241 Sep. Now (ρ) 0.219"
Mag pri 8.12 Mag sec 8.35 delta mag (ΔM) 0.23 Spectral class F3V (yellow-white)
Pri motion ra +029 Sec motion ra
Pri motion dec +033 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 30805 Constellation Dorado SAO 249104 HIP 22150
Tycho2 8888-01166-1 Gaia DR2 4662611518682841984 HD 30805 GC 5848
CP CP-66 320 Distance 85.69 Distance ly 279.52
 
 
ORBITAL ELEMENTS
 
 
Period (P)55y Periastron (T)2033.4y Semi-major axis (a)0.242a
Eccentricity (e)0.362 Inclination (i)104.1° Longitude of periastron (ω)99°
Node (Ω)47.9° Notes ReferenceTok2021c
Equinox2000 Last observation2021 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 176.1 0.097
2001 165.8 0.088
2002 153.7 0.082
2003 140.3 0.080
2004 126.8 0.081
2005 114.4 0.087
2006 103.9 0.096
2007 95.3 0.106
2008 88.4 0.118
2009 82.8 0.131
2010 78.2 0.145
2011 74.4 0.158
2012 71.2 0.171
2013 68.4 0.183
2014 65.9 0.195
2015 63.8 0.206
2016 61.8 0.215
2017 60.0 0.224
2018 58.3 0.231
2019 56.7 0.236
2020 55.2 0.240
2021 53.7 0.241
2022 52.2 0.240
2023 50.6 0.236
2024 49.0 0.229
2025 47.3 0.219
2026 45.4 0.206
2027 43.1 0.188
2028 40.4 0.166
2029 36.6 0.140
2030 31.1 0.111
2031 21.2 0.079
2032 358.4 0.049
2033 305.7 0.038
2034 264.8 0.060
2035 248.7 0.091
2036 240.9 0.122
2037 236.1 0.148
2038 232.7 0.171
2039 230.0 0.188
2040 227.7 0.200
2041 225.6 0.208
2042 223.6 0.212
2043 221.7 0.213
2044 219.8 0.211
2045 217.8 0.207
2046 215.7 0.200
2047 213.4 0.191
2048 210.9 0.181
2049 208.1 0.170
2050 204.9 0.158


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds04460-6605a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic