Asteroid 79 Eurynome was discovered on September 14, 1863 by James Craig Watson at the Detroit Observatory in Michigan. It is believed to be a member of the Themis family of asteroids located in the outer part of the main asteroid belt. Eurynome has a diameter of approximately 114 km and completes one orbit around the Sun every 5.5 years. Its name comes from Greek mythology, where Eurynome was a daughter of Oceanus and Tethys, and was known for her grace and beauty. Little is known about Eurynome's surface and composition, but it is believed to be a primitive C-type asteroid.
Find it in the Sky
Chose a date & time and view the position of asteroid 79 Eurynome in the sky on our interactive planetarium.
In Evidence
Asteroid 79 Eurynome
Asteroid 79 Eurynome is in the constellation of Leo, at a distance of
Finder Charts
The sky charts below show, at different resolutions, the position of asteroid 79 Eurynome in the sky. Click on each chart to access the interactive star map tool.
The following map uses photographic imagery from the Digitized Sky Survey (DSS) to realistically visualize the precise position of asteroid 79 Eurynome against the stars in the background. The horizontal size of the map measures 60 arcminutes. Click on the image to access a more detailed full-screen view.
Equatorial Coordinates
Apparent
J2000
Additional Information
Rise and Set Times
The following table lists today's rise, transit and set times of asteroid 79 Eurynome from Greenwich, UK (all times relative to the local timezone Europe/London):
If you need to access this information frequently for your observations, you can create a simple customized Quick Access page, so that you can easily bookmark it in your browser favorites or add a shortcut to your mobile phones' home screen.
Distance from Earth
The distance of asteroid 79 Eurynome from Earth is currently
The following graph shows the distance of asteroid 79 Eurynome from Earth as a function of time. In the chart the distance is measured in Astronomical Units and the data is sampled with an interval of 1 day.
Note: The values in this chart may not be entirely accurate around the time of closest approach for objects passing very close to Earth at high speed (e.g., Near-Earth Objects).
The value of the distance of 79 Eurynome from Earth is also available as a real time updated value in the live position tracker.
Closest Approach to Earth
In the period between January 1, 1900 and December 31, 2099, the closest approach of asteroid 79 Eurynome to Earth will happen on Monday 10 November 2081 at a distance of 0.981237 Astronomical Units, or 146,790,963 kilometers:
Note: the values for the closest approach are computed with a sampling interval of 1 day.
Light Curve
The following chart shows the light curve of asteroid 79 Eurynome, i.e., its apparent magnitude as a function of time. The curve is calculated using the latest ephemerides provided by JPL Horizons. The magnitude data is sampled with the interval of 2 days. Because of this sampling, inaccuracies may occur for objects that have large variations of brightness over a few days. For comets, large discrepancies can arise between the calculated brightness and the observations due to their highly dynamic, and not always precisely predictable, behavior.
Orbital Elements
The following table lists the orbital elements of asteroid 79 Eurynome at epoch February, 24 2023 00:00 UTC (JD: 2460000.5). Source: JPL Small-Body Database
| Element | Symbol | Value |
|---|---|---|
| Orbit eccentricity | e | 0.19074688 |
| Orbit inclination | i | 4.61389957° |
| Perihelion distance | q | 1.97812387 AU 295,923,119 km |
| Aphelion distance | Q |
2.91064038 AU 435,425,604 km |
| Semi-major axis | a |
2.44438212 AU 365,674,362 km |
| Orbital period | period |
3.8217 years 1,395.8928 days |
| Date of perihelion transit | Tp | July 16, 2024 2,460,507.5424 JD |
| Next perihelion transit | May 11, 2028 2,461,903.4352 JD |
|
| Argument of perihelion | peri | 201.565507944° |
| Longitude of the ascending node | node | 206.52179093626° |
| Mean anomaly | M | 229.23405342875° |
| Mean motion | n | 0.25789946°/day |
Orbit Visualization
The following chart is a 3D animated visualization of the orbit of asteroid 79 Eurynome relative to the other major objects in the Solar System. You can access more advanced features using our 3D Solar System Viewer.
15 Days Ephemeris
The following table lists the ephemerides of asteroid 79 Eurynome computed for the past and next 7 days, with a 24 hours interval. Apparent celestial coordinates are provided.
| Date | Right AscensionR.A. | DeclinationDec. | MagnitudeMag | Constellation |
|---|---|---|---|---|
| Jul 10 2025 | 09h 55m 18s | +09° 56’ 17” | 13.29 | Leo |
| Jul 11 2025 | 09h 56m 54s | +09° 48’ 42” | 13.29 | Leo |
| Jul 12 2025 | 09h 58m 31s | +09° 41’ 03” | 13.29 | Leo |
| Jul 13 2025 | 10h 00m 07s | +09° 33’ 22” | 13.30 | Leo |
| Jul 14 2025 | 10h 01m 44s | +09° 25’ 38” | 13.30 | Leo |
| Jul 15 2025 | 10h 03m 20s | +09° 17’ 50” | 13.30 | Leo |
| Jul 16 2025 | 10h 04m 57s | +09° 09’ 59” | 13.30 | Leo |
| Jul 17 2025 | 10h 06m 33s | +09° 02’ 07” | 13.30 | Leo |
| Jul 18 2025 | 10h 08m 10s | +08° 54’ 10” | 13.30 | Leo |
| Jul 19 2025 | 10h 09m 46s | +08° 46’ 11” | 13.31 | Leo |
| Jul 20 2025 | 10h 11m 23s | +08° 38’ 10” | 13.31 | Leo |
| Jul 21 2025 | 10h 12m 58s | +08° 30’ 05” | 13.31 | Leo |
| Jul 22 2025 | 10h 14m 35s | +08° 21’ 57” | 13.31 | Leo |
| Jul 23 2025 | 10h 16m 11s | +08° 13’ 48” | 13.31 | Leo |
Additional Resources on TheSkyLive
- Asteroid 79 Eurynome: Complete reference information on TheSkyLive.com.
- Where is asteroid 79 Eurynome?: Key information on where to find asteroid 79 Eurynome in the sky.
- Distance of asteroid 79 Eurynome from Earth: Find out how far asteroid 79 Eurynome is from Earth right now.
- How Bright is asteroid 79 Eurynome?: Current visual brightness (magnitude) and apparent size.
- Rise and Set Times: Rise and set times of asteroid 79 Eurynome from your location.
- Interactive Sky Map: Planetarium-style interactive visualization of asteroid 79 Eurynome's position in the sky.
- Live Position Tracker: High precision real time tracker of asteroid 79 Eurynome's position using deep space imagery.
- Ephemeris: 15 days asteroid 79 Eurynome's computed ephemeris.
- Orbital elements: Information about asteroid 79 Eurynome orbital parameters.
- Orbit Visualization: 3D interactive visualization showing the orbit of asteroid 79 Eurynome with respect to the major Solar System objects.