Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:36:42

Orbital Elements for BD+59515

WDS:	BD+59515	WDS ID/Discoverer
P:	2.478	Orbital period (years)
a:	0.011300000000000001	Semi-major axis (arcseconds)
i:	56.5	Inclination (degrees)
Ω:	67.5	Longitude of ascending node (degrees)
T:	1986.024	Epoch of periastron passage (year)
e:	0.26	Eccentricity
ω:	254.6	Longitude of periastron (degrees)
Start-Year:	2024.0	Year
End-Year:	2026.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BD+59515

Position:	023532.53+594733.1	Epoch-2000 right ascension and declination
WDS-ID:	02355+5948	WDS designation
Discoverer Code:	BD+59515	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	15862	HD catalog number
Hipparcos number:	12062	Hipparcos catalog number
V1:	8.93	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:	2000	Equinox
Date:		Date of last observation
Orbit grade:	9	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for BD+59515

WDS 6th Orbit including measures of BD+59515

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

Ephemeris of BD+59515

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.010    214.2
-------------------------
2024.0     0.012     88.3
2025.0     0.010    214.2

Disclaimer

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.