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public  Bonga, Philippines Bonga, Philippines  ⓘ
TimezoneAsia/Manila
Sunrise: 5:27 
Transit: 11:51 
Sunset: 18:15
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Dwarf Planets and Asteroids » 

Asteroid 13 Egeria

Below the horizon.  Rise: 6:42 | Tran: 13:14 | Set: 19:43
Alt: -27.94°   Az: 314.80°   Direction: North-West

Asteroid 13 Egeria is in the constellation of Cancer, at a distance of 492,282,975.0 kilometers from Earth. The current Right Ascension is 08h 50m 31s and the Declination is +29° 55’ 38” (apparent coordinates). The magnitude of asteroid 13 Egeria is 11.99.

Finder Charts

The sky charts below show, at different resolutions, the position of asteroid 13 Egeria in the sky. Click on each chart to access the interactive star map tool.

Star map showing the position of asteroid 13 Egeria in the constellation of Cancer on F, d Y. Field of view: 50x30 degrees. View interactive star map.
Star map showing the position of asteroid 13 Egeria in the constellation of Cancer on F, d Y. Field of view: 15x9 degrees. View in interactive star map.

The following map uses photographic imagery from the Digitized Sky Survey (DSS) to realistically visualize the precise position of asteroid 13 Egeria 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.

13 Egeria
RA: 08h 48m 58s
Dec: +30° 01’ 23”
Simplified high-resolution deep sky chart showing the current position of asteroid 13 Egeria. Field of view: 60 x 40 arcminutes. Go to the dedicated page

Equatorial Coordinates

Apparent

08h 50m 31s
+29° 55’ 38”
08h 54m 42s
17h 45m 14s

J2000

08h 48m 58s
+30° 01’ 23”

Additional Information

Cancer
11.99

Rise and Set Times

The following table lists today's rise, transit and set times of asteroid 13 Egeria from Bonga, Philippines (all times relative to the local timezone Asia/Manila):

Azimuth: 60.1°
Max altitude: 73.2°
Azimuth: 299.9°

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 492,282,975.0 kilometers, equivalent to 3.2907084352 Astronomical Units. Light takes 27m 22.079s to travel from asteroid 13 Egeria and arrive to us.

492,282,975.0
3.2907084352
27m 22.079s

The following graph shows the distance of asteroid 13 Egeria 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.

Chart of the distance of asteroid 13 Egeria from Earth in Astronomical Units (au)
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 13 Egeria 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 13 Egeria to Earth happened on Friday 14 January 1955 at a distance of 1.428381 Astronomical Units, or 213,682,816 kilometers:

Friday 14 January 1955
213,682,816
1.428381

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 13 Egeria, 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.

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 February, 24 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 April 17, 2021
2,459,321.7818 JD
Next perihelion transit June 5, 2025
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

Orbit Visualization

The following chart is a 3D animated visualization of the orbit of asteroid 13 Egeria relative to the other major objects in the Solar System. You can access more advanced features using our 3D Solar System Viewer.

Physical Properties

The table below lists the known key physical properties of asteroid 13 Egeria. The source for this data is the 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
Jul 05 2025 08h 34m 13s +30° 59’ 08” 12.02 Cancer
Jul 06 2025 08h 36m 22s +30° 51’ 03” 12.01 Cancer
Jul 07 2025 08h 38m 32s +30° 42’ 52” 12.01 Cancer
Jul 08 2025 08h 40m 40s +30° 34’ 36” 12.01 Cancer
Jul 09 2025 08h 42m 49s +30° 26’ 16” 12.00 Cancer
Jul 10 2025 08h 44m 58s +30° 17’ 50” 12.00 Cancer
Jul 11 2025 08h 47m 07s +30° 09’ 19” 11.99 Cancer
Jul 12 2025 08h 49m 16s +30° 00’ 44” 11.99 Cancer
Jul 13 2025 08h 51m 23s +29° 52’ 03” 11.99 Cancer
Jul 14 2025 08h 53m 31s +29° 43’ 18” 11.98 Cancer
Jul 15 2025 08h 55m 39s +29° 34’ 28” 11.98 Cancer
Jul 16 2025 08h 57m 46s +29° 25’ 33” 11.97 Cancer
Jul 17 2025 08h 59m 53s +29° 16’ 34” 11.97 Cancer
Jul 18 2025 09h 02m 00s +29° 07’ 29” 11.96 Cancer

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