The Solar System at your Fingertips
Dwarf Planets and Asteroids » 

Asteroid 13 Egeria

Available Resources

Asteroid 13 Egeria Sky Charts and Coordinates

This is a simplified sky chart, showing where Asteroid 13 Egeria is now with respect to the brightest stars and constellations.

More advanced sky charts are available on TheSkyLive for this object: 1) the Online Planetarium which is interactive and allows to select dates and additional objects to visualize; and 2) the Live Position and Data Tracker which provides the highest precision position data and features deep sky imagery from the Digitized Sky Survey.

Asteroid 13 Egeria in Libra on August, 20 2018
High Precision Live Sky Chart
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]
15h 22m 00s
-29° 03’ 13”

Asteroid 13 Egeria Rise and Set Times

Today's Asteroid 13 Egeria rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the local timezone Europe/London.

Azimuth: 119.1°
Max altitude: 9.5°
Azimuth: 240.9°

Asteroid 13 Egeria Orbit Diagram

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Asteroid 13 Egeria with respect of the Sun and the orbits of the major planets. The position of Asteroid 13 Egeria and the planets along their orbits in this diagram accurately represents the current configuration of the objects in the Solar System. This is an experimental feature and it requires a WebGL enabled browser. Please provide us feedback!

Orbit Diagram of Asteroid 13 Egeria
View Asteroid 13 Egeria in the 3D Solar System Simulator

Asteroid 13 Egeria Ephemeris

The following table lists the ephemerides of Asteroid 13 Egeria computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Asteroid 13 Egeria in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2018 Aug 13 15h 15m 33s -28° 39’ 51” 11.91 Libra
2018 Aug 14 15h 16m 23s -28° 43’ 00” 11.93 Libra
2018 Aug 15 15h 17m 14s -28° 46’ 10” 11.94 Libra
2018 Aug 16 15h 18m 09s -28° 49’ 24” 11.95 Libra
2018 Aug 17 15h 19m 03s -28° 52’ 41” 11.96 Libra
2018 Aug 18 15h 19m 58s -28° 55’ 59” 11.98 Libra
2018 Aug 19 15h 20m 54s -28° 59’ 20” 11.99 Libra
2018 Aug 20 15h 21m 51s -29° 02’ 43” 12.00 Libra
2018 Aug 21 15h 22m 50s -29° 06’ 07” 12.01 Libra
2018 Aug 22 15h 23m 49s -29° 09’ 34” 12.02 Libra
2018 Aug 23 15h 24m 51s -29° 13’ 04” 12.03 Libra
2018 Aug 24 15h 25m 53s -29° 16’ 33” 12.05 Libra
2018 Aug 25 15h 26m 56s -29° 20’ 06” 12.06 Libra
2018 Aug 26 15h 27m 59s -29° 23’ 39” 12.07 Libra

Distance of Asteroid 13 Egeria from Earth

The following chart shows the distance of Asteroid 13 Egeria from Earth as a function of time. Distance data is measured in Astronomical Units and sampled with a 2 days interval.

The reported distances might be inaccurate around the times of closest approach for objects passing extremely close to Earth. The value of the distance of 13 Egeria is also available as a real time updated value in the Live Position and Data Tracker.

Distance of Asteroid 13 Egeria from Earth between January 2013 and December 2075

Light Curve of Asteroid 13 Egeria

The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid 13 Egeria, according to the most recent ephemerides data. Magnitude data is sampled with a 2 days interval and there might be inaccuracies for objects changing brightness very rapidly during the course of a few days. For comets there could be large discrepancies between the observed and predicted brightness because of their highly dynamic behaviour.

Predicted magnitude of Asteroid 13 Egeria between January 2013 and December 2075

Asteroid 13 Egeria Physical Data

The following shows the known values of the most important physical parameters of Asteroid 13 Egeria. Source: JPL Small-Body Database

Physical Parameter Value Relative to Earth
Diameter 207.64 km 0.0163
Sideral Rotation 7.0450 hours 0.2943
Absolute Magnitude 6.74
Geometric Albedo 0.0825

Asteroid 13 Egeria Orbital Elements

The following table lists the orbital elements of Asteroid 13 Egeria at epoch 22 March 2018 00:00 UTC (JD: 2458200.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.08418912
Orbit inclination i 16.54027913°
Perihelion distance q 2.36090759 AU
353,186,749 km
Aphelion distance Q 2.79497696 AU
418,122,602 km
Semi-major axis a 2.57794227 AU
385,654,676 km
Orbital period period 4.1400 years
1,511.8483 days
Date of perihelion transit Tp 2017-Mar-01 15:17:47
2,457,814.1374 JD
Next perihelion transit 2021-Apr-21 11:39
2,459,325.9856 JD
Argument of perihelion peri 80.756890121°
Longitude of the ascending node node 43.236092205167°
Mean anomaly M 92.000337208697°
Mean motion n 0.23811913°/day
Closest approach to Earth* 2049-Dec-28
Distance of closest approach* 1.43000705 AU
213,926,010 km

* NOTE: values for the closest approach are computed for the time interval between 2013-Jan-01 and 2075-Dec-31, with a sampling interval of 1 day.