Double Star Calculator - Orbit

Orbital Elements for BU1163

WDS:	BU1163	WDS ID/Discoverer
P:	16.080	Orbital period (years)
a:	0.196	Semi-major axis (arcseconds)
i:	122.719	Inclination (degrees)
Ω:	207.453	Longitude of ascending node (degrees)
T:	1924.569	Epoch of periastron passage (year)
e:	0.942	Eccentricity
ω:	167.417	Longitude of periastron (degrees)
Start-Year:	2016.96	Year
End-Year:	2033.04	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BU1163
Position:	012420.48-065452.8	Epoch-2000 right ascension and declination
WDS-ID:	01243-0655	WDS designation
Discoverer Code:	BU1163	Discover designation and components
ADS number:	1123	Aitken Double Star catalog
HD number:	8556	HD catalog number
Hipparcos number:	6564	Hipparcos catalog number
V1:	6.59	Magnitude of the primary
V2:	6.98	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	1	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Mdz2022	Reference

Double Star Orbit for BU1163

WDS 6th Orbit including measures of BU1163

-- Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements) --

Legend:

Green plus signs:	Visual (micrometric) measures
Violet asterisks:	Photographic measures
Blue symbols:	Various interferometric techniques
Dot-dash line:	Indicates the line of nodes

Ephemeris of BU1163

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.343   217.41
--------------------------
2016.96    0.319   209.48
2017.06    0.315   209.32
2017.16    0.312   209.16
2017.26    0.308   209.00
2017.36    0.305   208.83
2017.46    0.301   208.66
2017.56    0.297   208.49
2017.66    0.293   208.31
2017.76    0.289   208.13
2017.86    0.285   207.94
2017.96    0.280   207.74
2018.06    0.276   207.54
2018.16    0.271   207.33
2018.26    0.266   207.11
2018.36    0.261   206.89
2018.46    0.256   206.66
2018.56    0.251   206.41
2018.66    0.245   206.16
2018.76    0.239   205.89
2018.86    0.234   205.62
2018.96    0.227   205.32
2019.06    0.221   205.01
2019.16    0.215   204.68
2019.26    0.208   204.33
2019.36    0.201   203.96
2019.46    0.193   203.56
2019.56    0.186   203.12
2019.66    0.178   202.65
2019.76    0.170   202.14
2019.86    0.161   201.56
2019.96    0.152   200.93
2020.06    0.142   200.21
2020.16    0.132   199.38
2020.26    0.122   198.42
2020.36    0.111   197.26
2020.46    0.099   195.83
2020.56    0.086   193.99
2020.66    0.071   191.44
2020.76    0.056   187.52
2020.86    0.038   180.14
2020.96    0.017   156.12
2021.06    0.012    21.29
2021.16    0.017   286.87
2021.26    0.032   258.14
2021.36    0.047   247.76
2021.46    0.060   242.25
2021.56    0.073   238.71
2021.66    0.085   236.20
2021.76    0.096   234.28
2021.86    0.106   232.75
2021.96    0.116   231.49
2022.06    0.126   230.42
2022.16    0.135   229.51
2022.26    0.144   228.70
2022.36    0.152   227.99
2022.46    0.160   227.35
2022.56    0.168   226.77
2022.66    0.175   226.24
2022.76    0.183   225.75
2022.86    0.190   225.30
2022.96    0.196   224.88
2023.06    0.203   224.49
2023.16    0.209   224.12
2023.26    0.215   223.77
2023.36    0.221   223.45
2023.46    0.227   223.14
2023.56    0.233   222.84
2023.66    0.238   222.56
2023.76    0.244   222.29
2023.86    0.249   222.04
2023.96    0.254   221.79
2024.06    0.259   221.55
2024.16    0.264   221.32
2024.26    0.268   221.10
2024.36    0.273   220.89
2024.46    0.277   220.68
2024.56    0.281   220.48
2024.66    0.285   220.29
2024.76    0.289   220.10
2024.86    0.293   219.92
2024.96    0.297   219.74
2025.06    0.301   219.56
2025.16    0.304   219.39
2025.26    0.308   219.23
2025.36    0.311   219.06
2025.46    0.314   218.90
2025.56    0.318   218.75
2025.66    0.321   218.59
2025.76    0.324   218.44
2025.86    0.327   218.30
2025.96    0.329   218.15
2026.06    0.332   218.01
2026.16    0.335   217.87
2026.26    0.337   217.73
2026.36    0.340   217.59
2026.46    0.342   217.46
2026.56    0.344   217.33
2026.66    0.346   217.20
2026.76    0.348   217.07
2026.86    0.350   216.94
2026.96    0.352   216.81
2027.06    0.354   216.69
2027.16    0.356   216.56
2027.26    0.358   216.44
2027.36    0.359   216.32
2027.46    0.361   216.20
2027.56    0.362   216.08
2027.66    0.363   215.96
2027.76    0.365   215.84
2027.86    0.366   215.73
2027.96    0.367   215.61
2028.06    0.368   215.49
2028.16    0.369   215.38
2028.26    0.370   215.26
2028.36    0.371   215.15
2028.46    0.371   215.04
2028.56    0.372   214.92
2028.66    0.373   214.81
2028.76    0.373   214.70
2028.86    0.374   214.59
2028.96    0.374   214.48
2029.06    0.374   214.36
2029.16    0.374   214.25
2029.26    0.374   214.14
2029.36    0.374   214.03
2029.46    0.374   213.92
2029.56    0.374   213.81
2029.66    0.374   213.70
2029.76    0.374   213.59
2029.86    0.373   213.47
2029.96    0.373   213.36
2030.06    0.373   213.25
2030.16    0.372   213.14
2030.26    0.371   213.02
2030.36    0.371   212.91
2030.46    0.370   212.80
2030.56    0.369   212.68
2030.66    0.368   212.57
2030.76    0.367   212.45
2030.86    0.366   212.33
2030.96    0.364   212.22
2031.06    0.363   212.10
2031.16    0.362   211.98
2031.26    0.360   211.86
2031.36    0.359   211.74
2031.46    0.357   211.62
2031.56    0.355   211.50
2031.66    0.353   211.37
2031.76    0.351   211.25
2031.86    0.349   211.12
2031.96    0.347   210.99
2032.06    0.345   210.86
2032.16    0.343   210.73
2032.26    0.341   210.59
2032.36    0.338   210.46
2032.46    0.335   210.32
2032.56    0.333   210.18
2032.66    0.330   210.04
2032.76    0.327   209.90
2032.86    0.324   209.75
2032.96    0.321   209.60

Disclaimer

This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. Unless otherwise noted, all output generated by the Double Star Calculator including orbit diagrams, ephemerides, and analytical reports is licensed under CC BY 4.0.

Acknowledgements

The Double Star Calculator - Orbital Elements makes use of the Washington Double Star Sixth Catalog of Orbits of Visual Binary Stars, maintained at the U.S. Naval Observatory.

Report Information

Double Star Calculator:		Version 1.2 ($Rev: 2397 $)
Report created:		2026-06-25 14:50:20