Double Star Calculator - Orbit

Orbital Elements for AST3

WDS:	AST3	WDS ID/Discoverer
P:	11.593	Orbital period (years)
a:	0.2729	Semi-major axis (arcseconds)
i:	97.23	Inclination (degrees)
Ω:	51.11	Longitude of ascending node (degrees)
T:	2015.539	Epoch of periastron passage (year)
e:	0.8612	Eccentricity
ω:	230.5	Longitude of periastron (degrees)
Start-Year:	2019.2035	Year
End-Year:	2030.7965	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for AST3
Position:	053319.13+444858.8	Epoch-2000 right ascension and declination
WDS-ID:	05333+4449	WDS designation
Discoverer Code:	AST3	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	12.5	Magnitude of the primary
V2:	14.2	Magnitude of the secondary
Equinox:		Equinox
Date:	2017	Date of last observation
Orbit grade:	2	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	MnA2019	Reference

Double Star Orbit for AST3

WDS 6th Orbit including measures of AST3

-- 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 AST3

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.031   273.87
--------------------------
2019.20    0.355    45.05
2019.30    0.355    44.93
2019.40    0.356    44.82
2019.50    0.356    44.70
2019.60    0.356    44.58
2019.70    0.355    44.47
2019.80    0.355    44.35
2019.90    0.354    44.23
2020.00    0.353    44.11
2020.10    0.352    43.99
2020.20    0.351    43.87
2020.30    0.350    43.75
2020.40    0.348    43.63
2020.50    0.347    43.51
2020.60    0.345    43.39
2020.70    0.343    43.26
2020.80    0.341    43.13
2020.90    0.339    43.01
2021.00    0.336    42.88
2021.10    0.333    42.74
2021.20    0.331    42.61
2021.30    0.328    42.47
2021.40    0.325    42.33
2021.50    0.322    42.19
2021.60    0.318    42.05
2021.70    0.315    41.90
2021.80    0.311    41.75
2021.90    0.307    41.59
2022.00    0.303    41.44
2022.10    0.299    41.27
2022.20    0.295    41.11
2022.30    0.291    40.93
2022.40    0.286    40.76
2022.50    0.282    40.57
2022.60    0.277    40.38
2022.70    0.272    40.19
2022.80    0.267    39.98
2022.90    0.262    39.77
2023.00    0.257    39.55
2023.10    0.251    39.32
2023.20    0.246    39.08
2023.30    0.240    38.83
2023.40    0.234    38.57
2023.50    0.228    38.29
2023.60    0.222    38.00
2023.70    0.216    37.69
2023.80    0.209    37.36
2023.90    0.203    37.01
2024.00    0.196    36.64
2024.10    0.190    36.25
2024.20    0.183    35.82
2024.30    0.176    35.36
2024.40    0.168    34.86
2024.50    0.161    34.31
2024.60    0.154    33.72
2024.70    0.146    33.06
2024.80    0.138    32.33
2024.90    0.131    31.51
2025.00    0.123    30.59
2025.10    0.115    29.53
2025.20    0.106    28.32
2025.30    0.098    26.90
2025.40    0.090    25.22
2025.50    0.081    23.19
2025.60    0.073    20.69
2025.70    0.064    17.53
2025.80    0.056    13.42
2025.90    0.048     7.88
2026.00    0.040     0.14
2026.10    0.033   349.01
2026.20    0.028   333.11
2026.30    0.026   312.48
2026.40    0.027   290.98
2026.50    0.031   273.34
2026.60    0.037   260.65
2026.70    0.044   251.65
2026.80    0.050   244.99
2026.90    0.054   239.62
2027.00    0.053   234.61
2027.10    0.035   227.32
2027.20    0.011    82.03
2027.30    0.053    57.26
2027.40    0.087    54.11
2027.50    0.115    52.64
2027.60    0.138    51.71
2027.70    0.158    51.03
2027.80    0.176    50.50
2027.90    0.192    50.07
2028.00    0.207    49.70
2028.10    0.220    49.37
2028.20    0.232    49.08
2028.30    0.243    48.82
2028.40    0.253    48.58
2028.50    0.263    48.36
2028.60    0.271    48.15
2028.70    0.279    47.95
2028.80    0.287    47.77
2028.90    0.294    47.59
2029.00    0.300    47.43
2029.10    0.306    47.26
2029.20    0.311    47.11
2029.30    0.316    46.96
2029.40    0.321    46.81
2029.50    0.325    46.67
2029.60    0.329    46.53
2029.70    0.333    46.40
2029.80    0.336    46.27
2029.90    0.339    46.14
2030.00    0.342    46.01
2030.10    0.345    45.89
2030.20    0.347    45.76
2030.30    0.349    45.64
2030.40    0.350    45.52
2030.50    0.352    45.40
2030.60    0.353    45.28
2030.70    0.354    45.16

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 15:38:34