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🌎  Greenwich, United Kingdom [change]

Asteroid 13 Egeria

Asteroid 13 Egeria is currently in the constellation of Libra. The current Right Ascension of Asteroid 13 Egeria is 15h 41m 15s and the Declination is -27° 35’ 00” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current magnitude of Asteroid 13 Egeria is 12.57 (JPL).

Summary of key facts about Asteroid 13 Egeria [tip: you can also create a Quick Access page for this data if you access it frequently and would like to have a simpler view]:

15h 41m 15s
-27° 35’ 00”
  • 13 Egeria is above the horizon from Greenwich, United Kingdom [change].
  • It is visible looking in the South-South-West direction at an altitude of 4° above the horizon.
  • Given its current magnitude, 13 Egeria is visible with the help of a telescope havng an aperture of 6 inches (150mm) or more.
  • See also 13 Egeria rise and set times.
  • Go to interactive sky chart

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.

Additional information about Asteroid 13 Egeria available on TheSkyLive:

Available Resources

Asteroid 13 Egeria Position and Finder Charts

Below we provide Asteroid 13 Egeria finder charts showing where the object is right now in the sky with respect to the brightest stars. The first finder chart has a field of view of 50 degrees, while the second one has a field of view of 10 degrees. Click on each finder chart to access a full screen interactive Online Planetarium.

Map showing Asteroid 13 Egeria in Libra on October, 01 2022
Field of view: 50x30 degrees
View fullscreen
Map showing Asteroid 13 Egeria in Libra on October, 01 2022
Field of view: 10x6 degrees
View fullscreen
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Higher precision deep sky finder chart, 60 arcmin wide, showing where Asteroid 13 Egeria is right now. Click on the image to see a more detailed fullscreen tracker view.

13 Egeria
RA: 15h 41m 15s
Dec: -27° 35’ 00”
Deep sky finder chart for Asteroid 13 Egeria
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Asteroid 13 Egeria?, a page that provides all the information needed to find Asteroid 13 Egeria in the sky and additional links to sky charts.

Asteroid 13 Egeria Distance from Earth

The distance of Asteroid 13 Egeria from Earth is currently 482,504,349 kilometers, equivalent to 3.225342 Astronomical Units. Light takes 26 minutes and 49.4613 seconds to travel from Asteroid 13 Egeria and arrive to us.

26 minutes and 49.4613 seconds

The following chart shows the distance of Asteroid 13 Egeria from Earth as a function of time. In the chart the distance data is measured in Astronomical Units and sampled with an interval of 1 day.

Distance of Asteroid 13 Egeria from Earth between January 2013 and December 2100

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

Closest approach of Asteroid 13 Egeria to Earth

Between January 2013 and December 2100, the closest approach of Asteroid 13 Egeria to Earth happens on Tue Dec 28 2049 at a distance of 1.430007 Astronomical Units, or 213,926,004 kilometers:

Tue Dec 28 2049

NOTE: values for the closest approach are computed with a sampling interval of 1 day.

Asteroid 13 Egeria brightness

The current visual magnitude of Asteroid 13 Egeria is 12.57.


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 2100

Asteroid 13 Egeria rise and set times

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

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

Azimuth: 117.6°
Max altitude: 10.9°
Azimuth: 242.4°

The rise and set times are defined as the time at which the upper limb of Asteroid 13 Egeria touches the horizon, considering the effect of the atmospheric refraction. As the atmospheric conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.

Asteroid 13 Egeria Orbital Elements

The following table lists the orbital elements of Asteroid 13 Egeria at epoch 20 January 2022 00:00 UTC (JD: 2459600.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.08544363
Orbit inclination i 16.53450108°
Perihelion distance q 2.35643082 AU
352,517,034 km
Aphelion distance Q 2.79673614 AU
418,385,772 km
Semi-major axis a 2.57658348 AU
385,451,403 km
Orbital period period 4.1359 years
1,510.6531 days
Date of perihelion transit Tp 2021-Apr-18 00:31:22
2,459,322.5218 JD
Next perihelion transit 2025-Jun-06 16:11
2,460,833.1749 JD
Argument of perihelion peri 80.147076835°
Longitude of the ascending node node 43.206728872695°
Mean anomaly M 66.244298279882°
Mean motion n 0.23830752°/day

Visualization of Asteroid 13 Egeria Orbit

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 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 15 Days 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
2022 Sep 24 15h 29m 20s -26° 47’ 21” 12.54 Libra
2022 Sep 25 15h 30m 51s -26° 53’ 35” 12.55 Libra
2022 Sep 26 15h 32m 21s -26° 59’ 48” 12.55 Libra
2022 Sep 27 15h 33m 53s -27° 06’ 00” 12.56 Libra
2022 Sep 28 15h 35m 26s -27° 12’ 11” 12.56 Libra
2022 Sep 29 15h 36m 59s -27° 18’ 20” 12.56 Libra
2022 Sep 30 15h 38m 33s -27° 24’ 26” 12.56 Libra
2022 Oct 01 15h 40m 06s -27° 30’ 32” 12.57 Libra
2022 Oct 02 15h 41m 40s -27° 36’ 35” 12.57 Libra
2022 Oct 03 15h 43m 15s -27° 42’ 38” 12.57 Libra
2022 Oct 04 15h 44m 52s -27° 48’ 38” 12.58 Libra
2022 Oct 05 15h 46m 27s -27° 54’ 36” 12.58 Libra
2022 Oct 06 15h 48m 05s -28° 00’ 33” 12.58 Scorpius
2022 Oct 07 15h 49m 41s -28° 06’ 27” 12.58 Scorpius