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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 Cetus on August, 17 2018
High Precision Live Sky Chart
03h 14m 40s
+09° 52’ 32”
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

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 local timezone Europe/London.

Azimuth: 80.1°
Max altitude: 48.4°
Azimuth: 279.9°

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 Aug 10 03h 03m 27s +10° 03’ 30” 9.24 Cetus
2018 Aug 11 03h 05m 03s +10° 02’ 33” 9.23 Cetus
2018 Aug 12 03h 06m 37s +10° 01’ 24” 9.21 Cetus
2018 Aug 13 03h 08m 11s +10° 00’ 06” 9.19 Cetus
2018 Aug 14 03h 09m 45s +09° 58’ 36” 9.18 Cetus
2018 Aug 15 03h 11m 17s +09° 56’ 54” 9.16 Cetus
2018 Aug 16 03h 12m 48s +09° 55’ 03” 9.14 Cetus
2018 Aug 17 03h 14m 21s +09° 53’ 00” 9.13 Cetus
2018 Aug 18 03h 15m 51s +09° 50’ 47” 9.11 Cetus
2018 Aug 19 03h 17m 21s +09° 48’ 21” 9.09 Cetus
2018 Aug 20 03h 18m 48s +09° 45’ 47” 9.08 Cetus
2018 Aug 21 03h 20m 17s +09° 43’ 00” 9.06 Cetus
2018 Aug 22 03h 21m 44s +09° 40’ 00” 9.04 Cetus
2018 Aug 23 03h 23m 11s +09° 36’ 51” 9.02 Cetus

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 22 March 2018 00:00 UTC (JD: 2458200.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.25688791
Orbit inclination i 12.98972367°
Perihelion distance q 1.98325570 AU
296,690,830 km
Aphelion distance Q 3.35444702 AU
501,818,132 km
Semi-major axis a 2.66885136 AU
399,254,481 km
Orbital period period 4.3600 years
1,592.5204 days
Date of perihelion transit Tp 2018-Nov-23 14:26:48
2,458,446.1020 JD
Argument of perihelion peri 248.18191569744°
Longitude of the ascending node node 169.8587237171°
Mean anomaly M 304.48001867572°
Mean motion n 0.22605676°/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.