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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 July, 26 2017
High Precision Live Sky Chart
18h 21m 07s
-06° 18’ 28”
 = 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: 96.3°
Max altitude: 32.2°
Azimuth: 263.7°

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 Jul 19 9.82 18h 26m 21s -05° 48’ 56” Scutum
2017 Jul 20 9.83 18h 25m 33s -05° 52’ 51” Scutum
2017 Jul 21 9.84 18h 24m 47s -05° 56’ 53” Scutum
2017 Jul 22 9.85 18h 24m 02s -06° 01’ 00” Scutum
2017 Jul 23 9.86 18h 23m 17s -06° 05’ 13” Scutum
2017 Jul 24 9.88 18h 22m 32s -06° 09’ 33” Scutum
2017 Jul 25 9.89 18h 21m 50s -06° 13’ 58” Scutum
2017 Jul 26 9.90 18h 21m 07s -06° 18’ 28” Serpens
2017 Jul 27 9.91 18h 20m 26s -06° 23’ 03” Serpens
2017 Jul 28 9.92 18h 19m 46s -06° 27’ 43” Serpens
2017 Jul 29 9.93 18h 19m 09s -06° 32’ 30” Serpens
2017 Jul 30 9.94 18h 18m 30s -06° 37’ 19” Serpens
2017 Jul 31 9.96 18h 17m 53s -06° 42’ 14” Serpens
2017 Aug 01 9.97 18h 17m 18s -06° 47’ 12” Serpens

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 03 September 2017 00:00 UTC (JD: 2458000.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.25685345
Orbit inclination i 12.98996128°
Perihelion distance q 1.98310976 AU
296,668,997 km
Aphelion distance Q 3.35395266 AU
501,744,178 km
Semi-major axis a 2.66853121 AU
399,206,588 km
Orbital period period 4.3600 years
1,592.2339 days
Date of perihelion transit Tp 2018-Nov-23 16:06:28
2,458,446.1712 JD
Argument of perihelion peri 248.20649315168°
Longitude of the ascending node node 169.8582922222°
Mean anomaly M 259.2348903007°
Mean motion n 0.22609744°/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.