Double Star Calculator - Orbit

Orbital Elements for HDS148

WDS:	HDS148	WDS ID/Discoverer
P:	15.510	Orbital period (years)
a:	0.074	Semi-major axis (arcseconds)
i:	65.9	Inclination (degrees)
Ω:	10.2	Longitude of ascending node (degrees)
T:	2019.120	Epoch of periastron passage (year)
e:	0.98	Eccentricity
ω:	213.4	Longitude of periastron (degrees)
Start-Year:	2017.245	Year
End-Year:	2032.755	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS148
Position:	010744.93-155658.5	Epoch-2000 right ascension and declination
WDS-ID:	01077-1557	WDS designation
Discoverer Code:	HDS148	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	6708	HD catalog number
Hipparcos number:	5295	Hipparcos catalog number
V1:	9.88	Magnitude of the primary
V2:	10.51	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2021	Date of last observation
Orbit grade:	3	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:		Flags
Ephemerides:		Ephemerides
Code:	Tok2021c	Reference

Double Star Orbit for HDS148

WDS 6th Orbit including measures of HDS148

-- 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 HDS148

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.127    25.03
--------------------------
2017.24    0.067    31.19
2017.34    0.064    31.43
2017.44    0.062    31.69
2017.54    0.060    31.97
2017.64    0.057    32.27
2017.74    0.054    32.61
2017.84    0.052    32.97
2017.94    0.049    33.38
2018.04    0.046    33.84
2018.14    0.043    34.36
2018.24    0.040    34.97
2018.34    0.036    35.68
2018.44    0.033    36.54
2018.54    0.029    37.62
2018.64    0.025    39.02
2018.74    0.021    40.99
2018.84    0.016    44.04
2018.94    0.011    49.88
2019.04    0.005    69.25
2019.14    0.004   354.47
2019.24    0.015     9.62
2019.34    0.022    12.64
2019.44    0.028    14.25
2019.54    0.034    15.32
2019.64    0.038    16.12
2019.74    0.043    16.75
2019.84    0.047    17.26
2019.94    0.050    17.70
2020.04    0.054    18.08
2020.14    0.057    18.41
2020.24    0.060    18.71
2020.34    0.063    18.98
2020.44    0.066    19.23
2020.54    0.069    19.46
2020.64    0.071    19.67
2020.74    0.074    19.87
2020.84    0.076    20.05
2020.94    0.078    20.22
2021.04    0.081    20.39
2021.14    0.083    20.54
2021.24    0.085    20.69
2021.34    0.087    20.83
2021.44    0.088    20.97
2021.54    0.090    21.10
2021.64    0.092    21.22
2021.74    0.094    21.34
2021.84    0.095    21.46
2021.94    0.097    21.57
2022.04    0.098    21.68
2022.14    0.100    21.78
2022.24    0.101    21.88
2022.34    0.103    21.98
2022.44    0.104    22.08
2022.54    0.105    22.18
2022.64    0.106    22.27
2022.74    0.108    22.36
2022.84    0.109    22.45
2022.94    0.110    22.53
2023.04    0.111    22.62
2023.14    0.112    22.70
2023.24    0.113    22.78
2023.34    0.114    22.86
2023.44    0.115    22.94
2023.54    0.116    23.02
2023.64    0.116    23.10
2023.74    0.117    23.17
2023.84    0.118    23.25
2023.94    0.119    23.32
2024.04    0.119    23.39
2024.14    0.120    23.47
2024.24    0.121    23.54
2024.34    0.121    23.61
2024.44    0.122    23.68
2024.54    0.122    23.75
2024.64    0.123    23.82
2024.74    0.123    23.88
2024.84    0.124    23.95
2024.94    0.124    24.02
2025.04    0.125    24.09
2025.14    0.125    24.15
2025.24    0.125    24.22
2025.34    0.126    24.28
2025.44    0.126    24.35
2025.54    0.126    24.41
2025.64    0.126    24.48
2025.74    0.126    24.54
2025.84    0.127    24.61
2025.94    0.127    24.67
2026.04    0.127    24.74
2026.14    0.127    24.80
2026.24    0.127    24.87
2026.34    0.127    24.93
2026.44    0.127    24.99
2026.54    0.127    25.06
2026.64    0.127    25.12
2026.74    0.127    25.19
2026.84    0.127    25.25
2026.94    0.127    25.31
2027.04    0.126    25.38
2027.14    0.126    25.44
2027.24    0.126    25.51
2027.34    0.126    25.57
2027.44    0.125    25.64
2027.54    0.125    25.70
2027.64    0.125    25.77
2027.74    0.125    25.84
2027.84    0.124    25.90
2027.94    0.124    25.97
2028.04    0.123    26.04
2028.14    0.123    26.11
2028.24    0.122    26.18
2028.34    0.122    26.25
2028.44    0.121    26.32
2028.54    0.121    26.39
2028.64    0.120    26.46
2028.74    0.120    26.53
2028.84    0.119    26.60
2028.94    0.118    26.68
2029.04    0.117    26.75
2029.14    0.117    26.82
2029.24    0.116    26.90
2029.34    0.115    26.98
2029.44    0.114    27.06
2029.54    0.113    27.14
2029.64    0.113    27.22
2029.74    0.112    27.30
2029.84    0.111    27.38
2029.94    0.110    27.47
2030.04    0.109    27.55
2030.14    0.108    27.64
2030.24    0.107    27.73
2030.34    0.106    27.82
2030.44    0.104    27.92
2030.54    0.103    28.01
2030.64    0.102    28.11
2030.74    0.101    28.21
2030.84    0.099    28.32
2030.94    0.098    28.42
2031.04    0.097    28.53
2031.14    0.095    28.64
2031.24    0.094    28.76
2031.34    0.092    28.88
2031.44    0.091    29.00
2031.54    0.089    29.13
2031.64    0.088    29.26
2031.74    0.086    29.39
2031.84    0.084    29.54
2031.94    0.083    29.68
2032.04    0.081    29.84
2032.14    0.079    30.00
2032.24    0.077    30.17
2032.34    0.075    30.35
2032.44    0.073    30.53
2032.54    0.071    30.73
2032.64    0.069    30.94
2032.74    0.067    31.17

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 14:47:29