Home
Search Objects
Major Solar System Objects
Comets
Asteroids
Spacecrafts
Star Maps
Orbits
public  Putat, Philippines Putat, Philippines  ⓘ
TimezoneAsia/Manila
Sunrise: 5:30 
Transit: 11:50 
Sunset: 18:10
Search  close
Dwarf Planets and Asteroids » 

Asteroid 15 Eunomia

Above the horizon.  Rise: 6:53 | Tran: 13:05 | Set: 19:15
Alt: 45.58°   Az: 279.97°   Direction: West

Asteroid 15 Eunomia is in the constellation of Cancer, at a distance of 541,198,188.0 kilometers from Earth. The current Right Ascension is 08h 42m 38s and the Declination is +14° 38’ 11” (apparent coordinates). The magnitude of asteroid 15 Eunomia is 10.79.

Finder Charts

The sky charts below show, at different resolutions, the position of asteroid 15 Eunomia in the sky. Click on each chart to access the interactive star map tool.

Star map showing the position of asteroid 15 Eunomia 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 15 Eunomia 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 15 Eunomia 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.

15 Eunomia
RA: 08h 41m 13s
Dec: +14° 43’ 44”
Simplified high-resolution deep sky chart showing the current position of asteroid 15 Eunomia. Field of view: 60 x 40 arcminutes. Go to the dedicated page

Equatorial Coordinates

Apparent

08h 42m 38s
+14° 38’ 11”
03h 01m 43s
11h 44m 22s

J2000

08h 41m 13s
+14° 43’ 44”

Additional Information

Cancer
10.79

Rise and Set Times

The following table lists today's rise, transit and set times of asteroid 15 Eunomia from Putat, Philippines (all times relative to the local timezone Asia/Manila):

Azimuth: 75.4°
Max altitude: 86.1°
Azimuth: 284.6°

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 15 Eunomia from Earth is currently 541,198,188.0 kilometers, equivalent to 3.6176864381 Astronomical Units. Light takes 30m 5.243s to travel from asteroid 15 Eunomia and arrive to us.

541,198,188.0
3.6176864381
30m 5.243s

The following graph shows the distance of asteroid 15 Eunomia 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 15 Eunomia 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 15 Eunomia 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 15 Eunomia to Earth will happen on Saturday 24 October 2071 at a distance of 1.190320 Astronomical Units, or 178,069,374 kilometers:

Saturday 24 October 2071
178,069,374
1.190320

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 15 Eunomia, 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 15 Eunomia as a function of time

Orbital Elements

The following table lists the orbital elements of asteroid 15 Eunomia at epoch February, 24 2023 00:00 UTC (JD: 2460000.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.18700976
Orbit inclination i 11.75360648°
Perihelion distance q 2.14877925 AU
321,452,801 km
Aphelion distance Q 3.13733404 AU
469,338,492 km
Semi-major axis a 2.64305664 AU
395,395,647 km
Orbital period period 4.2970 years
1,569.4885 days
Date of perihelion transit Tp July 14, 2024
2,460,505.5914 JD
Next perihelion transit October 30, 2028
2,462,075.0799 JD
Argument of perihelion peri 98.713244720149°
Longitude of the ascending node node 292.90826165525°
Mean anomaly M 244.14510652076°
Mean motion n 0.22937410°/day

Orbit Visualization

The following chart is a 3D animated visualization of the orbit of asteroid 15 Eunomia 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 15 Eunomia. The source for this data is the JPL Small-Body Database.

Physical Parameter Value Relative to Earth
Diameter 255.33 km 0.0200
Sideral Rotation 6.0830 hours 0.2542
Absolute Magnitude 5.28
Geometric Albedo 0.2094

15 Days Ephemeris

The following table lists the ephemerides of asteroid 15 Eunomia 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 30m 37s +15° 35’ 48” 10.80 Cancer
Jul 06 2025 08h 32m 15s +15° 28’ 07” 10.80 Cancer
Jul 07 2025 08h 33m 54s +15° 20’ 22” 10.80 Cancer
Jul 08 2025 08h 35m 32s +15° 12’ 36” 10.80 Cancer
Jul 09 2025 08h 37m 11s +15° 04’ 45” 10.79 Cancer
Jul 10 2025 08h 38m 49s +14° 56’ 51” 10.79 Cancer
Jul 11 2025 08h 40m 27s +14° 48’ 54” 10.79 Cancer
Jul 12 2025 08h 42m 05s +14° 40’ 54” 10.79 Cancer
Jul 13 2025 08h 43m 43s +14° 32’ 52” 10.78 Cancer
Jul 14 2025 08h 45m 21s +14° 24’ 45” 10.78 Cancer
Jul 15 2025 08h 46m 57s +14° 16’ 36” 10.78 Cancer
Jul 16 2025 08h 48m 35s +14° 08’ 24” 10.78 Cancer
Jul 17 2025 08h 50m 12s +14° 00’ 09” 10.77 Cancer
Jul 18 2025 08h 51m 49s +13° 51’ 51” 10.77 Cancer

Additional Resources on TheSkyLive