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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 10h 02m 40s and the Declination is +08° 30’ 18”.

10h 02m 40s
+08° 30’ 18”

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 August, 23 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: 10h 02m 40s
Dec: +08° 30’ 18”
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 525,580,819 kilometers, equivalent to 3.513291 Astronomical Units. Light takes 29 minutes and 13.1489 seconds to travel from Asteroid 3 Juno and arrive to us.

29 minutes and 13.1489 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 10.20.


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: 81.4°
Max altitude: 47.1°
Azimuth: 278.5°
Asteroid 3 Juno is below 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 Aug 16 09h 48m 30s +09° 27’ 56” 10.21 Leo
2019 Aug 17 09h 50m 17s +09° 20’ 49” 10.20 Leo
2019 Aug 18 09h 52m 05s +09° 13’ 42” 10.20 Leo
2019 Aug 19 09h 53m 52s +09° 06’ 33” 10.20 Leo
2019 Aug 20 09h 55m 39s +08° 59’ 21” 10.19 Leo
2019 Aug 21 09h 57m 24s +08° 52’ 06” 10.19 Leo
2019 Aug 22 09h 59m 11s +08° 44’ 49” 10.19 Leo
2019 Aug 23 10h 00m 56s +08° 37’ 32” 10.20 Leo
2019 Aug 24 10h 02m 41s +08° 30’ 11” 10.20 Leo
2019 Aug 25 10h 04m 27s +08° 22’ 49” 10.21 Leo
2019 Aug 26 10h 06m 12s +08° 15’ 24” 10.21 Leo
2019 Aug 27 10h 07m 58s +08° 07’ 58” 10.22 Leo
2019 Aug 28 10h 09m 42s +08° 00’ 29” 10.23 Leo
2019 Aug 29 10h 11m 26s +07° 53’ 00” 10.25 Leo