Compute the position of Asteroid 3 Juno for any date and time between 1 January 1600
and 30 December 2499
and visualize the results on an interactive sky map.
Asteroid 3 Juno is in the constellation of
Virgo,
at a distance of 598,422,762.0 kilometers from Earth.
The current Right Ascension is
12h 45m 16s
and the Declination is +00° 17’ 22”
(apparent coordinates).
The magnitude of Asteroid 3 Juno is 11.06 (data provided by JPL Horizons).
Map showing Asteroid 3 Juno in Virgo on September, 08 2024. Field of view: 50x30 degrees
View interactive star map
3 Juno is a large main-belt asteroid located between the orbits of Mars and Jupiter. It was discovered on 1 September 1804 by German astronomer Karl Ludwig Harding and is one of the largest asteroids in the solar system, with a diameter of approximately 247 kilometers. Juno has an irregular shape, with a rotation period of about 7.2 hours, and its surface is covered in numerous impact craters, some of which are several kilometers in diameter. Juno's composition is thought to be a mixture of rock and metal, similar to the composition of the Earth's crust. Juno orbits the Sun once every 4.36 Earth years and has been observed by ground-based telescopes, as well as by the Hubble Space Telescope and the Dawn spacecraft. The observations have revealed insights into its geology, composition, and history, including potential signs of water and organic molecules on its surface.
If you need to access this information frequently for your observations, you can create a simple
customized Quick Access page,
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Finder Charts
Sky map showing Asteroid 3 Juno in Virgo on September, 08 2024.
Field of view: 10x6 degrees. View in interactive sky chart
High precision deep sky finder chart, 60 arcmin wide, showing where Asteroid 3 Juno is right now.
Click on the image to see a more detailed fullscreen tracker view.
Deep sky finder chart for Asteroid 3 Juno.
Field of view: 60x40 arcmins.
View in deep sky object tracker
Also check out Where is Asteroid 3 Juno?,
a page that provides all the information needed to find Asteroid 3 Juno in the sky and additional links to sky charts.
Distance from Earth
The distance of Asteroid 3 Juno from Earth is currently 598,422,762.0 kilometers,
equivalent to 4.0002090885Astronomical Units.
Light takes
33m 16.123s to travel from Asteroid 3 Juno and arrive to us.
598,422,762.0
4.0002090885
33m 16.123s
The following chart shows the distance of Asteroid 3 Juno from Earth as a function of time.
In the chart the distance data is measured in Astronomical Units and sampled with
an interval of 1 day.
Chart of the distance of Asteroid 3 Juno from Earth in Astronomical Units (au)
The value of the reported distance might be somewhat inaccurate around the times of closest approach for objects passing extremely close to Earth.
The value of the distance of 3 Juno from Earth is also available as a real time updated value in the
Live Position and Data Tracker.
Closest Approach
Between 1 January 1600 and 30 December 2499,
the closest approach of
Asteroid 3 Juno to Earth happens on
Thu Nov 5 1874 at a distance of
1.028769 Astronomical Units, or
153,901,649 kilometers:
Thu Nov 5 1874
153,901,649
1.028769
NOTE: values for the closest approach are computed
with a sampling interval of 1 day.
Light Curve
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.
Chart of the magnitude of Asteroid 3 Juno as a function of time
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
15 Days Ephemeris
The following table lists the ephemerides of Asteroid 3 Juno computed for the past and next 7 days, with a 24 hours interval.
Apparent celestial coordinates are provided.
Compute the position of Asteroid 3 Juno for any date and time between 1 January 1600
and 30 December 2499
and display the results on an interactive star map.
Orbital elements. Detailed information
about Asteroid 3 Juno orbital parameters.
Interactive orbit visualization. 3d
visualization showing the orbit of Asteroid 3 Juno with respect to the major Solar System objects.
Physical data. Detailed
information about physical properties of Asteroid 3 Juno, such as mass and geometric properties.
15 days ephemerides. Table
showing celestial coordinates and magnitude of Asteroid 3 Juno for the past and next 7 days.
Interactive sky chart. An online planetarium application that shows where to locate Asteroid 3 Juno in the sky from your location.
Live position tracker. A high precision sky chart that uses real deep sky imagery to help locate Asteroid 3 Juno with your telescope or on your astrophotographies.
Sky map showing Asteroid 3 Juno in Virgo on September, 08 2024.
Field of view: 10x6 degrees. View in interactive sky chart
Deep sky finder chart for Asteroid 3 Juno.
Field of view: 60x40 arcmins.
View in deep sky object tracker