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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 4:52 
Transit: 12:57 
Sunset: 21:03
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Dwarf Planets and Asteroids » 

Asteroid 13 Egeria

Above the horizon.  Rise: 5:42 | Tran: 15:44 | Set: 1:48
Alt: 29.87°   Az: 70.35°   Direction: East-North-East

Asteroid 13 Egeria is in the constellation of Gemini, at a distance of 457,787,608.0 kilometers from Earth. The current Right Ascension is 07h 13m 37s and the Declination is +34° 50’ 25” (apparent coordinates). The magnitude of Asteroid 13 Egeria is 12.10.

Finder Charts

Map showing Asteroid 13 Egeria in Gemini on May, 29 2025. Field of view: 50x30 degrees
View interactive star map
Sky map showing Asteroid 13 Egeria in Gemini on May, 29 2025. Field of view: 15x9 degrees. View in interactive sky chart

High 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: 07h 11m 56s
Dec: +34° 53’ 04”
Deep sky finder chart for Asteroid 13 Egeria. Field of view: 60x40 arcmins. View in deep sky object tracker

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.

Celestial Coordinates

Apparent

07h 13m 37s
+34° 50’ 25”
18h 22m 57s
01h 36m 35s

J2000

07h 11m 56s
+34° 53’ 04”

Additional Information

Gemini
12.10

Rise and Set Times

Today's rise, transit and set times of Asteroid 13 Egeria from Greenwich, UK (all times relative to the local timezone Europe/London):

Azimuth: 55.1°
Max altitude: 73.3°
Azimuth: 304.9°
  • 13 Egeria is above the horizon from Greenwich, UK.
  • Right now it is placed in the East-North-East direction at an altitude of 29.87° above the horizon.
  • Given its current magnitude, 13 Egeria is visible with the help of a telescope having an aperture of 4 inches (100mm) or more.
  • 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.

Distance from Earth

The distance of Asteroid 13 Egeria from Earth is currently 457,787,608.0 kilometers, equivalent to 3.0601211492 Astronomical Units. Light takes 25m 27.015s to travel from Asteroid 13 Egeria and arrive to us.

457,787,608.0
3.0601211492
25m 27.015s

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.

Chart of the distance of Asteroid 13 Egeria from Earth in Astronomical Units (au)

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

Between 1 January 1900 and 31 December 2099, the closest approach of Asteroid 13 Egeria to Earth happens on Fri Jan 14 1955 at a distance of 1.428381 Astronomical Units, or 213,682,816 kilometers:

Fri Jan 14 1955
213,682,816
1.428381

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

Light Curve

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.

Chart of the magnitude of Asteroid 13 Egeria as a function of time

Orbital Elements

The following table lists the orbital elements of Asteroid 13 Egeria at epoch 24 February 2023 00:00 UTC (JD: 2460000.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.08561105
Orbit inclination i 16.53667695°
Perihelion distance q 2.35507774 AU
352,314,615 km
Aphelion distance Q 2.79607316 AU
418,286,592 km
Semi-major axis a 2.57557545 AU
385,300,604 km
Orbital period period 4.1335 years
1,509.7667 days
Date of perihelion transit Tp 2021-Apr-17 06:45:44
2,459,321.7818 JD
Next perihelion transit 2025-Jun-05 01:09
2,460,831.5485 JD
Argument of perihelion peri 79.906107517124°
Longitude of the ascending node node 43.208385237831°
Mean anomaly M 161.8386226222°
Mean motion n 0.23844744°/day
2h1>Orbit Visualization
Orbit Diagram of Asteroid 13 Egeria
View Asteroid 13 Egeria in the 3D Solar System Simulator

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

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. Apparent celestial coordinates are provided.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2025 May 22 06h 57m 18s +35° 20’ 44” 12.10 Auriga
2025 May 23 06h 59m 30s +35° 16’ 57” 12.10 Gemini
2025 May 24 07h 01m 43s +35° 13’ 04” 12.10 Gemini
2025 May 25 07h 03m 56s +35° 09’ 04” 12.10 Gemini
2025 May 26 07h 06m 08s +35° 05’ 00” 12.10 Gemini
2025 May 27 07h 08m 21s +35° 00’ 48” 12.10 Gemini
2025 May 28 07h 10m 33s +34° 56’ 30” 12.10 Gemini
2025 May 29 07h 12m 46s +34° 52’ 07” 12.10 Gemini
2025 May 30 07h 14m 59s +34° 47’ 37” 12.10 Gemini
2025 May 31 07h 17m 12s +34° 43’ 00” 12.10 Gemini
2025 Jun 01 07h 19m 26s +34° 38’ 19” 12.10 Gemini
2025 Jun 02 07h 21m 39s +34° 33’ 30” 12.10 Gemini
2025 Jun 03 07h 23m 52s +34° 28’ 35” 12.09 Gemini
2025 Jun 04 07h 26m 04s +34° 23’ 35” 12.09 Gemini

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