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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 September, 22 2017
18h 17m 49s
-11° 33’ 42”
10.56
 = 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: 101.6°
Max altitude: 27.0°
Azimuth: 258.4°

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 Sep 15 10.49 18h 14m 11s -10° 57’ 45” Serpens
2017 Sep 16 10.50 18h 14m 38s -11° 03’ 01” Serpens
2017 Sep 17 10.51 18h 15m 06s -11° 08’ 14” Serpens
2017 Sep 18 10.52 18h 15m 37s -11° 13’ 26” Serpens
2017 Sep 19 10.53 18h 16m 08s -11° 18’ 33” Serpens
2017 Sep 20 10.54 18h 16m 41s -11° 23’ 39” Serpens
2017 Sep 21 10.55 18h 17m 15s -11° 28’ 42” Serpens
2017 Sep 22 10.56 18h 17m 49s -11° 33’ 42” Serpens
2017 Sep 23 10.57 18h 18m 25s -11° 38’ 39” Serpens
2017 Sep 24 10.57 18h 19m 04s -11° 43’ 32” Serpens
2017 Sep 25 10.58 18h 19m 42s -11° 48’ 21” Serpens
2017 Sep 26 10.59 18h 20m 22s -11° 53’ 08” Serpens
2017 Sep 27 10.60 18h 21m 03s -11° 57’ 51” Serpens
2017 Sep 28 10.61 18h 21m 46s -12° 02’ 31” 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.

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.