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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 Serpens on February, 20 2017
High Precision Live Sky Chart
18h 19m 02s
-11° 53’ 24”
 = 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: 101.9°
Max altitude: 26.6°
Azimuth: 258.1°

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 MagnitudeMag Right AscensionR.A. DeclinationDec. Constellation
2017 Feb 13 11.43 18h 10m 54s -12° 11’ 30” Serpens
2017 Feb 14 11.43 18h 12m 06s -12° 09’ 06” Serpens
2017 Feb 15 11.42 18h 13m 17s -12° 06’ 38” Serpens
2017 Feb 16 11.42 18h 14m 26s -12° 04’ 06” Serpens
2017 Feb 17 11.42 18h 15m 37s -12° 01’ 32” Serpens
2017 Feb 18 11.41 18h 16m 45s -11° 58’ 53” Serpens
2017 Feb 19 11.41 18h 17m 54s -11° 56’ 09” Serpens
2017 Feb 20 11.40 18h 19m 02s -11° 53’ 24” Serpens
2017 Feb 21 11.40 18h 20m 11s -11° 50’ 35” Serpens
2017 Feb 22 11.39 18h 21m 19s -11° 47’ 41” Serpens
2017 Feb 23 11.39 18h 22m 26s -11° 44’ 44” Scutum
2017 Feb 24 11.38 18h 23m 31s -11° 41’ 44” Scutum
2017 Feb 25 11.38 18h 24m 38s -11° 38’ 41” Scutum
2017 Feb 26 11.37 18h 25m 44s -11° 35’ 35” Scutum

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 January 2030

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 January 2030

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 30 July 2016 00:00 UTC (JD: 2457600.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.25660133
Orbit inclination i 12.99010228°
Perihelion distance q 1.98400525 AU
296,802,962 km
Aphelion distance Q 3.35365628 AU
501,699,840 km
Semi-major axis a 2.66883077 AU
399,251,401 km
Orbital period period 4.3600 years
1,592.5020 days
Date of perihelion transit Tp 2014-Jul-15 14:00:21
2,456,854.0836 JD
Next perihelion transit 2018-Nov-24 02:03
2,458,446.5856 JD
Argument of perihelion peri 248.23679656353°
Longitude of the ascending node node 169.86299715297°
Mean anomaly M 168.73442883034°
Mean motion n 0.22605937°/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 2030-Jan-01, with a sampling interval of 1 day.