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Asteroid 15 Eunomia

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Asteroid 15 Eunomia Position

Asteroid 15 Eunomia is currently in the constellation of Aquarius. The current Right Ascension is 21h 27m 18s and the Declination is -04° 00’ 19”.

21h 27m 18s
-04° 00’ 19”

Simplified sky chart showing where Asteroid 15 Eunomia is right now in the sky with respect to the brightest stars and constellations (see fuillscreen Online Planetarium)

Map showing Asteroid 15 Eunomia in Aquarius on November, 21 2019
Field of view: 60x30 degrees
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 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Hihgher precision deep sky finder chart showing where Asteroid 15 Eunomia is right now (view fullscreen)

15 Eunomia
RA: 21h 27m 18s
Dec: -04° 00’ 19”
Deep sky finder chart for Asteroid 15 Eunomia
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Asteroid 15 Eunomia?, a page that provides all the information needed to find Asteroid 15 Eunomia in the sky and additional links to sky charts.

Asteroid 15 Eunomia Distance

The distance of Asteroid 15 Eunomia from Earth is currently 315,921,616 kilometers, equivalent to 2.111806 Astronomical Units. Light takes 17 minutes and 33.8011 seconds to travel from Asteroid 15 Eunomia and arrive to us.

17 minutes and 33.8011 seconds

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

Closest approach of Asteroid 15 Eunomia to Earth

Between January 2013 and December 2100 the closest approach of Asteroid 15 Eunomia to Earth happens on Sat Oct 24 2071 at a distance of 1.19032029 Astronomical Units, or 178,069,381 kilometers:

Sat Oct 24 2071

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

Asteroid 15 Eunomia brightness

The current visual magnitude of Asteroid 15 Eunomia is 9.73.


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 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 15 Eunomia rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 94.0°
Max altitude: 34.5°
Azimuth: 266.0°
Asteroid 15 Eunomia is above the horizon from Greenwich, United Kingdom

The rise and set times are defined as the time at which the upper limb of Asteroid 15 Eunomia touches the horizon, consideting the effect of the atmospheric refraction. As the atmoshpere conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.

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 11.75242982°
Perihelion distance q 2.15207459 AU
321,945,776 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 98.498680839648°
Longitude of the ascending node node 292.93433866096°
Mean anomaly M 283.38769769063°
Mean motion n 0.22923830°/day

Visualization of Asteroid 15 Eunomia Orbit

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 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 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. 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 Nov 14 21h 18m 00s -04° 36’ 02” 9.65 Aquarius
2019 Nov 15 21h 19m 09s -04° 31’ 41” 9.66 Aquarius
2019 Nov 16 21h 20m 21s -04° 27’ 15” 9.67 Aquarius
2019 Nov 17 21h 21m 33s -04° 22’ 41” 9.68 Aquarius
2019 Nov 18 21h 22m 45s -04° 18’ 02” 9.69 Aquarius
2019 Nov 19 21h 23m 59s -04° 13’ 17” 9.70 Aquarius
2019 Nov 20 21h 25m 14s -04° 08’ 25” 9.71 Aquarius
2019 Nov 21 21h 26m 30s -04° 03’ 25” 9.72 Aquarius
2019 Nov 22 21h 27m 47s -03° 58’ 21” 9.73 Aquarius
2019 Nov 23 21h 29m 05s -03° 53’ 08” 9.74 Aquarius
2019 Nov 24 21h 30m 24s -03° 47’ 50” 9.75 Aquarius
2019 Nov 25 21h 31m 44s -03° 42’ 27” 9.75 Aquarius
2019 Nov 26 21h 33m 05s -03° 36’ 56” 9.76 Aquarius
2019 Nov 27 21h 34m 26s -03° 31’ 18” 9.77 Aquarius