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Asteroid 3 Juno

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Asteroid 3 Juno Position

Asteroid 3 Juno is currently in the constellation of Leo. The current Right Ascension is 11h 29m 01s and the Declination is +01° 45’ 30”.

11h 29m 01s
+01° 45’ 30”

Simplified sky chart showing where Asteroid 3 Juno is right now in the sky with respect to the brightest stars and constellations (see fuillscreen Online Planetarium)

Map showing Asteroid 3 Juno in Leo on October, 15 2019
Field of view: 60x30 degrees
View fullscreen
 = 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 3 Juno is right now (view fullscreen)

3 Juno
RA: 11h 29m 01s
Dec: +01° 45’ 30”
Deep sky finder chart for Asteroid 3 Juno
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Asteroid 3 Juno?, a page that provides all the information needed to find Asteroid 3 Juno in the sky and additional links to sky charts.

Asteroid 3 Juno Distance

The distance of Asteroid 3 Juno from Earth is currently 519,536,832 kilometers, equivalent to 3.472889 Astronomical Units. Light takes 28 minutes and 52.9883 seconds to travel from Asteroid 3 Juno and arrive to us.

28 minutes and 52.9883 seconds

The following chart shows the distance of Asteroid 3 Juno 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 3 Juno 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 3 Juno from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Asteroid 3 Juno to Earth

Between January 2013 and December 2100 the closest approach of Asteroid 3 Juno to Earth happens on Fri Nov 16 2018 at a distance of 1.03592975 Astronomical Units, or 154,972,885 kilometers:

Fri Nov 16 2018

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

Asteroid 3 Juno brightness

The current visual magnitude of Asteroid 3 Juno is 10.69.


The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid 3 Juno, 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 3 Juno between January 2013 and December 2100

Asteroid 3 Juno 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 3 Juno rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 88.2°
Max altitude: 40.3°
Azimuth: 271.7°
Asteroid 3 Juno 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 3 Juno 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 3 Juno Orbital Elements

The following table lists the orbital elements of Asteroid 3 Juno at epoch 26 April 2019 00:00 UTC (JD: 2458600.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.25694232
Orbit inclination i 12.98891913°
Perihelion distance q 1.98333205 AU
296,702,252 km
Aphelion distance Q 3.35496699 AU
501,895,918 km
Semi-major axis a 2.66914952 AU
399,299,085 km
Orbital period period 4.3600 years
1,592.7873 days
Date of perihelion transit Tp 2018-Nov-23 11:27:30
2,458,445.9774 JD
Next perihelion transit 2023-Apr-04 06:21
2,460,038.7647 JD
Argument of perihelion peri 248.13862618112°
Longitude of the ascending node node 169.85275981134°
Mean anomaly M 34.925015905897°
Mean motion n 0.22601888°/day

Visualization of Asteroid 3 Juno Orbit

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

Asteroid 3 Juno Physical Data

The following shows the known values of the most important physical parameters of Asteroid 3 Juno. Source: JPL Small-Body Database

Physical Parameter Value Relative to Earth
Diameter 233.92 km 0.0184
Sideral Rotation 7.2100 hours 0.3012
Absolute Magnitude 5.33
Geometric Albedo 0.2383

Asteroid 3 Juno 15 Days Ephemeris

The following table lists the ephemerides of Asteroid 3 Juno computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Asteroid 3 Juno in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2019 Oct 08 11h 17m 26s +02° 42’ 53” 10.64 Leo
2019 Oct 09 11h 18m 59s +02° 35’ 12” 10.65 Leo
2019 Oct 10 11h 20m 32s +02° 27’ 32” 10.65 Leo
2019 Oct 11 11h 22m 05s +02° 19’ 51” 10.66 Leo
2019 Oct 12 11h 23m 38s +02° 12’ 14” 10.67 Leo
2019 Oct 13 11h 25m 09s +02° 04’ 36” 10.67 Leo
2019 Oct 14 11h 26m 42s +01° 57’ 02” 10.68 Leo
2019 Oct 15 11h 28m 14s +01° 49’ 27” 10.68 Leo
2019 Oct 16 11h 29m 44s +01° 41’ 54” 10.69 Leo
2019 Oct 17 11h 31m 15s +01° 34’ 23” 10.69 Leo
2019 Oct 18 11h 32m 47s +01° 26’ 53” 10.70 Leo
2019 Oct 19 11h 34m 17s +01° 19’ 26” 10.70 Leo
2019 Oct 20 11h 35m 47s +01° 11’ 59” 10.71 Leo
2019 Oct 21 11h 37m 17s +01° 04’ 36” 10.71 Leo