Double Star Calculator - Orbit

Orbital Elements for BUG3

WDS:	BUG3	WDS ID/Discoverer
P:	20.380	Orbital period (years)
a:	0.21392	Semi-major axis (arcseconds)
i:	85.55	Inclination (degrees)
Ω:	13.61	Longitude of ascending node (degrees)
T:	2029.721	Epoch of periastron passage (year)
e:	0.0058	Eccentricity
ω:	80.0	Longitude of periastron (degrees)
Start-Year:	2014.81	Year
End-Year:	2035.19	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BUG3
Position:	153449.84-295227.4	Epoch-2000 right ascension and declination
WDS-ID:	15348-2952	WDS designation
Discoverer Code:	BUG3	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	15.5 k	Magnitude of the primary
V2:	16.0 k	Magnitude of the secondary
Equinox:		Equinox
Date:	2015	Date of last observation
Orbit grade:	3	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Dip2017	Reference

Double Star Orbit for BUG3

WDS 6th Orbit including measures of BUG3

-- 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 BUG3

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.197    15.45
--------------------------
2014.81    0.214   193.40
2014.91    0.214   193.53
2015.01    0.214   193.67
2015.11    0.214   193.81
2015.21    0.214   193.95
2015.31    0.213   194.08
2015.41    0.212   194.22
2015.51    0.211   194.36
2015.61    0.210   194.50
2015.71    0.209   194.65
2015.81    0.207   194.79
2015.91    0.206   194.94
2016.01    0.204   195.09
2016.11    0.201   195.24
2016.21    0.199   195.40
2016.31    0.197   195.56
2016.41    0.194   195.72
2016.51    0.191   195.89
2016.61    0.188   196.06
2016.71    0.185   196.24
2016.81    0.181   196.43
2016.91    0.178   196.63
2017.01    0.174   196.83
2017.11    0.170   197.04
2017.21    0.166   197.26
2017.31    0.162   197.49
2017.41    0.158   197.74
2017.51    0.153   198.00
2017.61    0.149   198.27
2017.71    0.144   198.57
2017.81    0.139   198.88
2017.91    0.134   199.22
2018.01    0.129   199.58
2018.11    0.124   199.97
2018.21    0.118   200.40
2018.31    0.113   200.87
2018.41    0.107   201.39
2018.51    0.102   201.97
2018.61    0.096   202.61
2018.71    0.090   203.34
2018.81    0.084   204.17
2018.91    0.078   205.13
2019.01    0.072   206.24
2019.11    0.066   207.55
2019.21    0.060   209.13
2019.31    0.054   211.06
2019.41    0.048   213.48
2019.51    0.042   216.58
2019.61    0.036   220.70
2019.71    0.031   226.36
2019.81    0.025   234.43
2019.91    0.021   246.27
2020.01    0.018   263.35
2020.11    0.017   284.97
2020.21    0.018   306.23
2020.31    0.021   322.64
2020.41    0.026   333.94
2020.51    0.031   341.66
2020.61    0.037   347.09
2020.71    0.043   351.07
2020.81    0.049   354.07
2020.91    0.055   356.42
2021.01    0.061   358.31
2021.11    0.067   359.85
2021.21    0.073     1.14
2021.31    0.079     2.23
2021.41    0.085     3.16
2021.51    0.091     3.98
2021.61    0.096     4.70
2021.71    0.102     5.33
2021.81    0.108     5.90
2021.91    0.113     6.42
2022.01    0.119     6.88
2022.11    0.124     7.31
2022.21    0.129     7.70
2022.31    0.135     8.06
2022.41    0.140     8.39
2022.51    0.144     8.70
2022.61    0.149     8.99
2022.71    0.154     9.27
2022.81    0.158     9.52
2022.91    0.163     9.77
2023.01    0.167    10.00
2023.11    0.171    10.22
2023.21    0.175    10.43
2023.31    0.178    10.63
2023.41    0.182    10.82
2023.51    0.185    11.01
2023.61    0.188    11.19
2023.71    0.191    11.36
2023.81    0.194    11.53
2023.91    0.197    11.70
2024.01    0.199    11.86
2024.11    0.202    12.01
2024.21    0.204    12.16
2024.31    0.206    12.31
2024.41    0.207    12.46
2024.51    0.209    12.61
2024.61    0.210    12.75
2024.71    0.211    12.89
2024.81    0.212    13.03
2024.91    0.213    13.17
2025.01    0.213    13.31
2025.11    0.214    13.45
2025.21    0.214    13.58
2025.31    0.214    13.72
2025.41    0.213    13.86
2025.51    0.213    14.00
2025.61    0.212    14.14
2025.71    0.211    14.28
2025.81    0.210    14.42
2025.91    0.209    14.56
2026.01    0.207    14.70
2026.11    0.206    14.85
2026.21    0.204    15.00
2026.31    0.202    15.15
2026.41    0.199    15.31
2026.51    0.197    15.47
2026.61    0.194    15.63
2026.71    0.191    15.80
2026.81    0.188    15.98
2026.91    0.185    16.16
2027.01    0.182    16.34
2027.11    0.178    16.54
2027.21    0.174    16.74
2027.31    0.171    16.95
2027.41    0.166    17.17
2027.51    0.162    17.40
2027.61    0.158    17.65
2027.71    0.153    17.91
2027.81    0.149    18.18
2027.91    0.144    18.48
2028.01    0.139    18.79
2028.11    0.134    19.13
2028.21    0.129    19.49
2028.31    0.123    19.88
2028.41    0.118    20.31
2028.51    0.112    20.79
2028.61    0.107    21.31
2028.71    0.101    21.89
2028.81    0.095    22.54
2028.91    0.089    23.27
2029.01    0.084    24.11
2029.11    0.078    25.08
2029.21    0.071    26.21
2029.31    0.065    27.56
2029.41    0.059    29.18
2029.51    0.053    31.17
2029.61    0.047    33.68
2029.71    0.041    36.93
2029.81    0.035    41.29
2029.91    0.030    47.34
2030.01    0.024    56.11
2030.11    0.020    69.10
2030.21    0.017    87.70
2030.31    0.017   110.28
2030.41    0.019   131.05
2030.51    0.022   146.30
2030.61    0.027   156.61
2030.71    0.033   163.65
2030.81    0.039   168.62
2030.91    0.045   172.28
2031.01    0.051   175.07
2031.11    0.057   177.25
2031.21    0.063   179.02
2031.31    0.069   180.46
2031.41    0.075   181.68
2031.51    0.081   182.71
2031.61    0.087   183.60
2031.71    0.093   184.38
2031.81    0.099   185.06
2031.91    0.105   185.67
2032.01    0.110   186.21
2032.11    0.116   186.70
2032.21    0.121   187.15
2032.31    0.127   187.56
2032.41    0.132   187.94
2032.51    0.137   188.28
2032.61    0.142   188.61
2032.71    0.147   188.91
2032.81    0.151   189.19
2032.91    0.156   189.45
2033.01    0.160   189.70
2033.11    0.165   189.94
2033.21    0.169   190.17
2033.31    0.173   190.38
2033.41    0.177   190.59
2033.51    0.180   190.78
2033.61    0.184   190.97
2033.71    0.187   191.16
2033.81    0.190   191.33
2033.91    0.193   191.50
2034.01    0.196   191.67
2034.11    0.198   191.83
2034.21    0.201   191.99
2034.31    0.203   192.14
2034.41    0.205   192.29
2034.51    0.207   192.44
2034.61    0.208   192.59
2034.71    0.210   192.73
2034.81    0.211   192.87
2034.91    0.212   193.01
2035.01    0.213   193.15
2035.11    0.213   193.29

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 17:17:11