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 Auriga on March, 29 2017
High Precision Live Sky Chart
07h 20m 26s
+41° 46’ 10”
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Asteroid 13 Egeria Rise and Set Times

Asteroid 13 Egeria is circumpolar from Greenwich, United Kingdom [change] and transits at 18:50 UTC (altitude: 80.3°)

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 MagnitudeMag Right AscensionR.A. DeclinationDec. Constellation
2017 Mar 22 11.18 07h 13m 14s +42° 45’ 00” Auriga
2017 Mar 23 11.20 07h 14m 12s +42° 36’ 42” Auriga
2017 Mar 24 11.21 07h 15m 11s +42° 28’ 22” Auriga
2017 Mar 25 11.23 07h 16m 10s +42° 19’ 59” Auriga
2017 Mar 26 11.24 07h 17m 12s +42° 11’ 35” Auriga
2017 Mar 27 11.26 07h 18m 15s +42° 03’ 09” Auriga
2017 Mar 28 11.27 07h 19m 20s +41° 54’ 41” Auriga
2017 Mar 29 11.28 07h 20m 26s +41° 46’ 10” Auriga
2017 Mar 30 11.30 07h 21m 33s +41° 37’ 38” Auriga
2017 Mar 31 11.31 07h 22m 42s +41° 29’ 04” Auriga
2017 Apr 01 11.32 07h 23m 53s +41° 20’ 29” Auriga
2017 Apr 02 11.34 07h 25m 05s +41° 11’ 52” Auriga
2017 Apr 03 11.35 07h 26m 17s +41° 03’ 11” Auriga
2017 Apr 04 11.36 07h 27m 32s +40° 54’ 30” Auriga

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 January 2030

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 January 2030

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 30 July 2016 00:00 UTC (JD: 2457600.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.08365858
Orbit inclination i 16.53971301°
Perihelion distance q 2.36097738 AU
353,197,190 km
Aphelion distance Q 2.79207438 AU
417,688,383 km
Semi-major axis a 2.57652588 AU
385,442,787 km
Orbital period period 4.1400 years
1,510.6025 days
Date of perihelion transit Tp 2017-Feb-28 05:16:44
2,457,812.7200 JD
Next perihelion transit 2021-Apr-18 19:44
2,459,323.3224 JD
Argument of perihelion peri 80.386117685673°
Longitude of the ascending node node 43.238534515465°
Mean anomaly M 309.42469074153°
Mean motion n 0.23831551°/day
Closest approach to Earth* 2020-Dec-21
Distance of closest approach* 1.43998391 AU
215,418,527 km

* NOTE: values for the closest approach are computed for the time interval between 2013-Jan-01 and 2030-Jan-01, with a sampling interval of 1 day.