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Asteroid 5 Astraea

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Asteroid 5 Astraea Position

Asteroid 5 Astraea is currently in the constellation of Gemini. The current Right Ascension is 07h 41m 56s and the Declination is +16° 34’ 06”.

07h 41m 56s
+16° 34’ 06”

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

Map showing Asteroid 5 Astraea in Gemini on October, 15 2019
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]

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

5 Astraea
RA: 07h 41m 56s
Dec: +16° 34’ 06”
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 304,641,115 kilometers, equivalent to 2.036400 Astronomical Units. Light takes 16 minutes and 56.1734 seconds to travel from Asteroid 5 Astraea and arrive to us.

16 minutes and 56.1734 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 1.09542465 Astronomical Units, or 163,873,195 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 11.33.


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: 73.5°
Max altitude: 55.1°
Azimuth: 286.6°
Asteroid 5 Astraea is above 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, consideting the effect of the atmospheric refraction. As the atmoshpere 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 26 April 2019 00:00 UTC (JD: 2458600.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.19109452
Orbit inclination i 5.36698794°
Perihelion distance q 2.08232406 AU
311,511,246 km
Aphelion distance Q 3.06617378 AU
458,693,069 km
Semi-major axis a 2.57424892 AU
385,102,158 km
Orbital period period 4.1300 years
1,508.6005 days
Date of perihelion transit Tp 2020-Mar-17 07:53:01
2,458,925.8285 JD
Argument of perihelion peri 358.68760778917°
Longitude of the ascending node node 141.57660421413°
Mean anomaly M 282.36628732358°
Mean motion n 0.23863177°/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
2019 Oct 08 07h 31m 00s +17° 03’ 51” 11.44 Gemini
2019 Oct 09 07h 32m 30s +16° 59’ 58” 11.42 Gemini
2019 Oct 10 07h 33m 59s +16° 56’ 03” 11.41 Gemini
2019 Oct 11 07h 35m 26s +16° 52’ 08” 11.40 Gemini
2019 Oct 12 07h 36m 54s +16° 48’ 11” 11.38 Gemini
2019 Oct 13 07h 38m 21s +16° 44’ 12” 11.37 Gemini
2019 Oct 14 07h 39m 47s +16° 40’ 13” 11.35 Gemini
2019 Oct 15 07h 41m 12s +16° 36’ 12” 11.34 Gemini
2019 Oct 16 07h 42m 36s +16° 32’ 12” 11.32 Gemini
2019 Oct 17 07h 43m 59s +16° 28’ 09” 11.31 Gemini
2019 Oct 18 07h 45m 20s +16° 24’ 07” 11.29 Gemini
2019 Oct 19 07h 46m 42s +16° 20’ 06” 11.28 Gemini
2019 Oct 20 07h 48m 03s +16° 16’ 02” 11.26 Gemini
2019 Oct 21 07h 49m 23s +16° 12’ 01” 11.25 Gemini