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Asteroid 5 Astraea

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Asteroid 5 Astraea Position

Asteroid 5 Astraea is currently in the constellation of Cancer. The current Right Ascension is 08h 08m 18s and the Declination is +20° 55’ 37”.

08h 08m 18s
+20° 55’ 37”

Simplified sky chart showing where Asteroid 5 Astraea is right now in the sky with respect to the brightest stars and constellations (see full screen Online Planetarium)

Map showing Asteroid 5 Astraea in Cancer on April, 07 2020
Field of view: 60x30 degrees
View fullscreen
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Higher precision deep sky finder chart showing where Asteroid 5 Astraea is right now (view fullscreen)

5 Astraea
RA: 08h 08m 18s
Dec: +20° 55’ 37”
Deep sky finder chart for Asteroid 5 Astraea
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Asteroid 5 Astraea?, a page that provides all the information needed to find Asteroid 5 Astraea in the sky and additional links to sky charts.

Asteroid 5 Astraea Distance

The distance of Asteroid 5 Astraea from Earth is currently 244,247,728 kilometers, equivalent to 1.632695 Astronomical Units. Light takes 13 minutes and 34.7227 seconds to travel from Asteroid 5 Astraea and arrive to us.

13 minutes and 34.7227 seconds

The following chart shows the distance of Asteroid 5 Astraea 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.

Distance of Asteroid 5 Astraea from Earth between January 2013 and December 2100

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 5 Astraea from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Asteroid 5 Astraea to Earth

Between January 2013 and December 2100 the closest approach of Asteroid 5 Astraea to Earth happens on Mon Feb 15 2016 at a distance of 1.09542470 Astronomical Units, or 163,873,203 kilometers:

Mon Feb 15 2016

NOTE: values for the closest approach are computed with a sampling interval of 1 day.

Asteroid 5 Astraea brightness

The current visual magnitude of Asteroid 5 Astraea is 10.80.


The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid 5 Astraea, 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 5 Astraea between January 2013 and December 2100

Asteroid 5 Astraea rise and set times

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's Asteroid 5 Astraea rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 69.1°
Max altitude: 59.4°
Azimuth: 290.9°
Asteroid 5 Astraea is below the horizon from Greenwich, United Kingdom

The rise and set times are defined as the time at which the upper limb of Asteroid 5 Astraea touches the horizon, considering the effect of the atmospheric refraction. As the atmospheric conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.

Asteroid 5 Astraea Orbital Elements

The following table lists the orbital elements of Asteroid 5 Astraea at epoch 30 May 2020 00:00 UTC (JD: 2459000.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.19091334
Orbit inclination i 5.36742713°
Perihelion distance q 2.08261921 AU
311,555,401 km
Aphelion distance Q 3.06545535 AU
458,585,594 km
Semi-major axis a 2.57403728 AU
385,070,497 km
Orbital period period 4.1300 years
1,508.4144 days
Date of perihelion transit Tp 2020-Mar-17 05:21:17
2,458,925.7231 JD
Next perihelion transit 2024-May-03 15:18
2,460,434.1375 JD
Argument of perihelion peri 358.64841985905°
Longitude of the ascending node node 141.57102629798°
Mean anomaly M 17.846339306086°
Mean motion n 0.23866120°/day

Visualization of Asteroid 5 Astraea Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Asteroid 5 Astraea with respect of the Sun and the orbits of the major planets. The position of Asteroid 5 Astraea 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!

Orbit Diagram of Asteroid 5 Astraea
View Asteroid 5 Astraea in the 3D Solar System Simulator

Asteroid 5 Astraea Physical Data

The following shows the known values of the most important physical parameters of Asteroid 5 Astraea. Source: JPL Small-Body Database

Physical Parameter Value Relative to Earth
Diameter 119.07 km 0.0093
Sideral Rotation 16.8000 hours 0.7019
Absolute Magnitude 6.85
Geometric Albedo 0.2268

Asteroid 5 Astraea 15 Days Ephemeris

The following table lists the ephemerides of Asteroid 5 Astraea computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Asteroid 5 Astraea in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2020 Mar 31 08h 00m 23s +21° 01’ 04” 10.67 Cancer
2020 Apr 01 08h 01m 23s +21° 00’ 43” 10.69 Cancer
2020 Apr 02 08h 02m 25s +21° 00’ 16” 10.71 Cancer
2020 Apr 03 08h 03m 28s +20° 59’ 40” 10.73 Cancer
2020 Apr 04 08h 04m 32s +20° 58’ 58” 10.74 Cancer
2020 Apr 05 08h 05m 38s +20° 58’ 06” 10.76 Cancer
2020 Apr 06 08h 06m 45s +20° 57’ 09” 10.78 Cancer
2020 Apr 07 08h 07m 54s +20° 56’ 02” 10.80 Cancer
2020 Apr 08 08h 09m 03s +20° 54’ 47” 10.81 Cancer
2020 Apr 09 08h 10m 14s +20° 53’ 26” 10.83 Cancer
2020 Apr 10 08h 11m 27s +20° 51’ 56” 10.85 Cancer
2020 Apr 11 08h 12m 41s +20° 50’ 18” 10.86 Cancer
2020 Apr 12 08h 13m 55s +20° 48’ 33” 10.88 Cancer
2020 Apr 13 08h 15m 11s +20° 46’ 41” 10.90 Cancer