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Asteroid 5 Astraea

Available Resources

Asteroid 5 Astraea Sky Charts and Coordinates

This is a simplified sky chart, showing where Asteroid 5 Astraea 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 5 Astraea in Aquarius on December, 12 2018
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]
23h 33m 49s
-07° 37’ 43”
12.21

Asteroid 5 Astraea Rise and Set Times

Today's Asteroid 5 Astraea rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the Europe/London timezone.

Azimuth: 97.6°
Max altitude: 30.9°
Azimuth: 262.4°

Asteroid 5 Astraea Orbit Diagram

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 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
2018 Dec 05 23h 29m 23s -08° 11’ 34” 12.13 Aquarius
2018 Dec 06 23h 29m 56s -08° 07’ 28” 12.14 Aquarius
2018 Dec 07 23h 30m 28s -08° 03’ 15” 12.15 Aquarius
2018 Dec 08 23h 31m 01s -07° 58’ 55” 12.16 Aquarius
2018 Dec 09 23h 31m 36s -07° 54’ 29” 12.17 Aquarius
2018 Dec 10 23h 32m 12s -07° 49’ 54” 12.18 Aquarius
2018 Dec 11 23h 32m 49s -07° 45’ 14” 12.19 Aquarius
2018 Dec 12 23h 33m 28s -07° 40’ 26” 12.20 Aquarius
2018 Dec 13 23h 34m 06s -07° 35’ 31” 12.21 Aquarius
2018 Dec 14 23h 34m 46s -07° 30’ 32” 12.22 Aquarius
2018 Dec 15 23h 35m 27s -07° 25’ 24” 12.23 Aquarius
2018 Dec 16 23h 36m 10s -07° 20’ 11” 12.24 Aquarius
2018 Dec 17 23h 36m 52s -07° 14’ 52” 12.25 Aquarius
2018 Dec 18 23h 37m 36s -07° 09’ 25” 12.26 Aquarius

Distance of Asteroid 5 Astraea from Earth

The following chart shows the distance of Asteroid 5 Astraea 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 5 Astraea is also available as a real time updated value in the Live Position and Data Tracker.

Distance of Asteroid 5 Astraea from Earth between January 2013 and December 2075

Light Curve of Asteroid 5 Astraea

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 2075

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 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 5.36698818°
Perihelion distance q 2.08232405 AU
311,511,245 km
Aphelion distance Q 3.06617379 AU
458,693,071 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 07:52:59
2,458,925.8285 JD
Argument of perihelion peri 358.68761281467°
Longitude of the ascending node node 141.57659572205°
Mean anomaly M 282.36629126204°
Mean motion n 0.23863177°/day
Closest approach to Earth* 2016-Feb-15
Distance of closest approach* 1.09542465 AU
163,873,195 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.