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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 Capricornus on February, 21 2018
High Precision Live Sky Chart
21h 41m 14s
-13° 44’ 49”
12.61
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

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 local timezone Europe/London.

Azimuth: 103.7°
Max altitude: 24.8°
Azimuth: 256.3°

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 MagnitudeMag Right AscensionR.A. DeclinationDec. Constellation
2018 Feb 14 12.52 21h 31m 01s -14° 30’ 11” Capricornus
2018 Feb 15 12.53 21h 32m 30s -14° 23’ 47” Capricornus
2018 Feb 16 12.55 21h 33m 57s -14° 17’ 21” Capricornus
2018 Feb 17 12.56 21h 35m 26s -14° 10’ 54” Capricornus
2018 Feb 18 12.58 21h 36m 52s -14° 04’ 26” Capricornus
2018 Feb 19 12.59 21h 38m 21s -13° 57’ 56” Capricornus
2018 Feb 20 12.60 21h 39m 47s -13° 51’ 23” Capricornus
2018 Feb 21 12.61 21h 41m 14s -13° 44’ 49” Capricornus
2018 Feb 22 12.63 21h 42m 42s -13° 38’ 13” Capricornus
2018 Feb 23 12.64 21h 44m 08s -13° 31’ 36” Capricornus
2018 Feb 24 12.65 21h 45m 36s -13° 24’ 59” Capricornus
2018 Feb 25 12.66 21h 47m 02s -13° 18’ 20” Capricornus
2018 Feb 26 12.67 21h 48m 28s -13° 11’ 38” Capricornus
2018 Feb 27 12.68 21h 49m 54s -13° 04’ 55” Capricornus

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 03 September 2017 00:00 UTC (JD: 2458000.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.19146494
Orbit inclination i 5.36794604°
Perihelion distance q 2.08059137 AU
311,252,040 km
Aphelion distance Q 3.06597917 AU
458,663,956 km
Semi-major axis a 2.57328527 AU
384,957,998 km
Orbital period period 4.1300 years
1,507.7534 days
Date of perihelion transit Tp 2016-Jan-30 13:54:09
2,457,418.0793 JD
Next perihelion transit 2020-Mar-17 07:59
2,458,925.8327 JD
Argument of perihelion peri 358.75692405111°
Longitude of the ascending node node 141.58348432957°
Mean anomaly M 139.06216614239°
Mean motion n 0.23876583°/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.