The Solar System at your Fingertips
🌎 Location: Greenwich, United Kingdom [change]
Dwarf Planets and Asteroids » 

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 Orion on April, 21 2019
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]
06h 00m 17s
+14° 02’ 31”

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: 76.0°
Max altitude: 52.6°
Azimuth: 284.1°

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 Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2019 Apr 14 05h 45m 51s +13° 27’ 43” 9.83 Taurus
2019 Apr 15 05h 47m 47s +13° 32’ 52” 9.84 Taurus
2019 Apr 16 05h 49m 44s +13° 37’ 50” 9.85 Taurus
2019 Apr 17 05h 51m 41s +13° 42’ 42” 9.86 Taurus
2019 Apr 18 05h 53m 38s +13° 47’ 27” 9.87 Orion
2019 Apr 19 05h 55m 36s +13° 52’ 04” 9.88 Orion
2019 Apr 20 05h 57m 33s +13° 56’ 33” 9.89 Orion
2019 Apr 21 05h 59m 31s +14° 00’ 52” 9.89 Orion
2019 Apr 22 06h 01m 30s +14° 05’ 06” 9.90 Orion
2019 Apr 23 06h 03m 29s +14° 09’ 11” 9.91 Orion
2019 Apr 24 06h 05m 26s +14° 13’ 09” 9.92 Orion
2019 Apr 25 06h 07m 26s +14° 16’ 58” 9.93 Orion
2019 Apr 26 06h 09m 25s +14° 20’ 39” 9.94 Orion
2019 Apr 27 06h 11m 25s +14° 24’ 14” 9.95 Orion

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 2100

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 2100

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 2100-Dec-31, with a sampling interval of 1 day.