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Asteroid 3 Juno

Available Resources

Asteroid 3 Juno Sky Charts and Coordinates

This is a simplified sky chart, showing where Asteroid 3 Juno 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 3 Juno in Eridanus on December, 15 2018
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]
03h 35m 40s
-04° 09’ 01”
7.82

Asteroid 3 Juno Rise and Set Times

Today's Asteroid 3 Juno rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the Europe/London timezone.

Azimuth: 94.1°
Max altitude: 34.4°
Azimuth: 265.8°

Asteroid 3 Juno Orbit Diagram

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 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
2018 Dec 08 03h 39m 03s -04° 25’ 08” 7.68 Eridanus
2018 Dec 09 03h 38m 30s -04° 24’ 00” 7.70 Eridanus
2018 Dec 10 03h 37m 59s -04° 22’ 30” 7.72 Eridanus
2018 Dec 11 03h 37m 28s -04° 20’ 36” 7.74 Eridanus
2018 Dec 12 03h 37m 00s -04° 18’ 23” 7.76 Eridanus
2018 Dec 13 03h 36m 33s -04° 15’ 47” 7.78 Eridanus
2018 Dec 14 03h 36m 07s -04° 12’ 51” 7.80 Eridanus
2018 Dec 15 03h 35m 44s -04° 09’ 33” 7.82 Eridanus
2018 Dec 16 03h 35m 21s -04° 05’ 56” 7.84 Eridanus
2018 Dec 17 03h 35m 02s -04° 01’ 58” 7.86 Eridanus
2018 Dec 18 03h 34m 42s -03° 57’ 41” 7.88 Eridanus
2018 Dec 19 03h 34m 26s -03° 53’ 05” 7.91 Eridanus
2018 Dec 20 03h 34m 10s -03° 48’ 11” 7.93 Eridanus
2018 Dec 21 03h 33m 57s -03° 43’ 00” 7.95 Eridanus

Distance of Asteroid 3 Juno from Earth

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

Distance of Asteroid 3 Juno from Earth between January 2013 and December 2075

Light Curve of Asteroid 3 Juno

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 2075

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 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 0.25694231
Orbit inclination i 12.98891944°
Perihelion distance q 1.98333206 AU
296,702,254 km
Aphelion distance Q 3.35496697 AU
501,895,916 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 11:27:29
2,458,445.9774 JD
Next perihelion transit 2023-Apr-04 06:21
2,460,038.7647 JD
Argument of perihelion peri 248.13862972171°
Longitude of the ascending node node 169.85275480375°
Mean anomaly M 34.925018986501°
Mean motion n 0.22601888°/day
Closest approach to Earth* 2018-Nov-16
Distance of closest approach* 1.03592987 AU
154,972,902 km

* NOTE: values for the closest approach are computed for the time interval between 2013-Jan-01 and 2075-Dec-31, with a sampling interval of 1 day.