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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 Cetus 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]
02h 23m 51s
+10° 17’ 24”
11.95

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: 79.8°
Max altitude: 48.8°
Azimuth: 280.3°

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
2019 Apr 14 02h 10m 44s +09° 10’ 05” 12.05 Cetus
2019 Apr 15 02h 12m 24s +09° 18’ 51” 12.04 Cetus
2019 Apr 16 02h 14m 03s +09° 27’ 33” 12.03 Cetus
2019 Apr 17 02h 15m 45s +09° 36’ 14” 12.01 Cetus
2019 Apr 18 02h 17m 25s +09° 44’ 52” 12.00 Cetus
2019 Apr 19 02h 19m 05s +09° 53’ 27” 11.99 Cetus
2019 Apr 20 02h 20m 48s +10° 02’ 02” 11.98 Cetus
2019 Apr 21 02h 22m 28s +10° 10’ 33” 11.96 Cetus
2019 Apr 22 02h 24m 11s +10° 19’ 04” 11.95 Cetus
2019 Apr 23 02h 25m 53s +10° 27’ 30” 11.94 Cetus
2019 Apr 24 02h 27m 34s +10° 35’ 56” 11.92 Aries
2019 Apr 25 02h 29m 17s +10° 44’ 18” 11.91 Aries
2019 Apr 26 02h 31m 00s +10° 52’ 38” 11.90 Aries
2019 Apr 27 02h 32m 43s +11° 00’ 56” 11.88 Aries

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 2100

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 2100

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