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Asteroid 15 Eunomia

Available Resources

Asteroid 15 Eunomia Sky Charts and Coordinates

This is a simplified sky chart, showing where Asteroid 15 Eunomia 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 15 Eunomia in Capricornus on April, 21 2019
High Precision Live Sky Chart
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]
21h 05m 53s
-16° 47’ 39”

Asteroid 15 Eunomia Rise and Set Times

Today's Asteroid 15 Eunomia rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the Europe/London timezone.

Azimuth: 106.8°
Max altitude: 21.7°
Azimuth: 253.2°

Asteroid 15 Eunomia Orbit Diagram

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Asteroid 15 Eunomia with respect of the Sun and the orbits of the major planets. The position of Asteroid 15 Eunomia 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 15 Eunomia
View Asteroid 15 Eunomia in the 3D Solar System Simulator

Asteroid 15 Eunomia Ephemeris

The following table lists the ephemerides of Asteroid 15 Eunomia computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Asteroid 15 Eunomia in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2019 Apr 14 20h 56m 52s -17° 45’ 42” 10.55 Capricornus
2019 Apr 15 20h 58m 06s -17° 37’ 53” 10.54 Capricornus
2019 Apr 16 20h 59m 21s -17° 30’ 03” 10.53 Capricornus
2019 Apr 17 21h 00m 36s -17° 22’ 13” 10.52 Capricornus
2019 Apr 18 21h 01m 50s -17° 14’ 21” 10.51 Capricornus
2019 Apr 19 21h 03m 02s -17° 06’ 28” 10.50 Capricornus
2019 Apr 20 21h 04m 14s -16° 58’ 35” 10.49 Capricornus
2019 Apr 21 21h 05m 26s -16° 50’ 39” 10.47 Capricornus
2019 Apr 22 21h 06m 37s -16° 42’ 44” 10.46 Capricornus
2019 Apr 23 21h 07m 46s -16° 34’ 49” 10.45 Capricornus
2019 Apr 24 21h 08m 57s -16° 26’ 53” 10.44 Capricornus
2019 Apr 25 21h 10m 05s -16° 18’ 55” 10.43 Capricornus
2019 Apr 26 21h 11m 12s -16° 10’ 58” 10.42 Capricornus
2019 Apr 27 21h 12m 20s -16° 03’ 00” 10.41 Capricornus

Distance of Asteroid 15 Eunomia from Earth

The following chart shows the distance of Asteroid 15 Eunomia 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 15 Eunomia is also available as a real time updated value in the Live Position and Data Tracker.

Distance of Asteroid 15 Eunomia from Earth between January 2013 and December 2100

Light Curve of Asteroid 15 Eunomia

The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid 15 Eunomia, 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 15 Eunomia between January 2013 and December 2100

Asteroid 15 Eunomia Physical Data

The following shows the known values of the most important physical parameters of Asteroid 15 Eunomia. Source: 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

Asteroid 15 Eunomia Orbital Elements

The following table lists the orbital elements of Asteroid 15 Eunomia at epoch 26 April 2019 00:00 UTC (JD: 2458600.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.18608436
Orbit inclination i 11.75242985°
Perihelion distance q 2.15207459 AU
321,945,777 km
Aphelion distance Q 3.13612602 AU
469,157,776 km
Semi-major axis a 2.64410030 AU
395,551,776 km
Orbital period period 4.3000 years
1,570.4182 days
Date of perihelion transit Tp 2020-Mar-26 04:53:24
2,458,934.7038 JD
Argument of perihelion peri 98.498681103059°
Longitude of the ascending node node 292.93433842573°
Mean anomaly M 283.38769755278°
Mean motion n 0.22923830°/day
Closest approach to Earth* 2071-Oct-24
Distance of closest approach* 1.19032029 AU
178,069,381 km

* NOTE: values for the closest approach are computed for the time interval between 2013-Jan-01 and 2100-Dec-31, with a sampling interval of 1 day.