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Doubles in session


Current system
01497-1022
BU 1168
HD 11181


Nearby doubles
17' : 01486-1023
BRT3191

19' : 01496-1041
ENG 8

21' : 01494-1042
AMM 1AB

26' : 01515-1020
BUP 26AB
Baten Kaitos

32' : 01486-0955
JNN 17

34' : 01487-1046
HDO 52

41' : 01518-0955
HU 12

47' : 01513-0943
SLW 88

48' : 01529-1033
LDS 58

52' : 01517-0939
LDS2223

54' : 01523-0944
BU 259

58' : 01507-0927
NSN 61

58' : 01482-0929
RST4186

67' : 01511-1125
GWP 229

67' : 01514-1124
GWP 230

77' : 01454-1104
LDS2221

89' : 01435-1038
GAL 313

92' : 01462-1137
RST3363

94' : 01523-1148
RST3364

97' : 01466-0858
SLW 83

101' : 01497-0842
KPP2687

108' : 01447-1139
HU 11

109' : 01567-1058
GWP 240

111' : 01572-1015
GAL 315

111' : 01434-1127
GAL 312

114' : 01466-0839
JOD 3



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.

01497-1022 BU 1168 (HD 11181)

 
 
01h 49m 43.41s -10° 22' 26.8" P.A. 209.00 sep 0.3 mag 9.18,9.32 Sp F5 dist. 99.8 pc (325.55 l.y.)
 
 
Coord 2000 01497-1022 Discov num BU 1168 Comp Coord arcsec 2000 01 49 43.41 -10 22 26.8
Date first 1890 Date last 2023 Obs 19
Pa first 203 Pa last 209.2 P.A. Now (θ) 209.2°
Sep first 0.3 Sep last 0.281 Sep. Now (ρ) 0.281"
Mag pri 9.18 Mag sec 9.32 delta mag (ΔM) 0.14 Spectral class F5 (yellow-white)
Pri motion ra -026 Sec motion ra
Pri motion dec -033 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 11181 Constellation Cetus SAO 148039 HIP 8509
Tycho2 5278-00866-1 Gaia DR2 2461069763016308864 HD 11181 ADS 1454
BD BD-11 353 Distance 99.8 Distance ly 325.55
 
 
ORBITAL ELEMENTS
 
 
Period (P)121y± 3.5 Periastron (T)1924.6± 3.5 Semi-major axis (a)0.2949a± 0.0119
Eccentricity (e)0.7± 0 Inclination (i)94.9°± 0.6 Longitude of periastron (ω)106.8°± 2.5
Node (Ω)205.5°± 0.7 Notes ReferenceTok2024a
Equinox2000 Last observation2023 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 214.6 0.229
2001 214.3 0.233
2002 214.0 0.237
2003 213.7 0.241
2004 213.5 0.245
2005 213.2 0.249
2006 213.0 0.252
2007 212.7 0.256
2008 212.5 0.259
2009 212.2 0.262
2010 212.0 0.265
2011 211.8 0.267
2012 211.6 0.270
2013 211.4 0.272
2014 211.2 0.274
2015 210.9 0.276
2016 210.7 0.277
2017 210.5 0.278
2018 210.3 0.279
2019 210.1 0.279
2020 209.9 0.279
2021 209.7 0.279
2022 209.5 0.279
2023 209.3 0.277
2024 209.1 0.276
2025 208.9 0.274
2026 208.7 0.272
2027 208.5 0.269
2028 208.2 0.265
2029 208.0 0.261
2030 207.8 0.256
2031 207.5 0.250
2032 207.3 0.243
2033 207.0 0.236
2034 206.7 0.227
2035 206.4 0.217
2036 206.0 0.206
2037 205.6 0.193
2038 205.2 0.178
2039 204.6 0.162
2040 204.0 0.142
2041 203.0 0.120
2042 201.6 0.094
2043 199.1 0.065
2044 191.5 0.032
2045 86.1 0.009
2046 35.3 0.040
2047 29.8 0.071
2048 27.5 0.096
2049 26.1 0.116
2050 25.1 0.131


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds01497-1022b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic