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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 Sagittarius on February, 23 2017
High Precision Live Sky Chart
18h 14m 17s
-19° 00’ 11”
12.36
 = 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: 109.0°
Max altitude: 19.5°
Azimuth: 251.0°

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
2017 Feb 16 12.37 18h 04m 12s -19° 06’ 47” Sagittarius
2017 Feb 17 12.37 18h 05m 39s -19° 06’ 01” Sagittarius
2017 Feb 18 12.37 18h 07m 08s -19° 05’ 11” Sagittarius
2017 Feb 19 12.37 18h 08m 35s -19° 04’ 18” Sagittarius
2017 Feb 20 12.37 18h 10m 01s -19° 03’ 20” Sagittarius
2017 Feb 21 12.37 18h 11m 26s -19° 02’ 21” Sagittarius
2017 Feb 22 12.36 18h 12m 52s -19° 01’ 18” Sagittarius
2017 Feb 23 12.36 18h 14m 17s -19° 00’ 11” Sagittarius
2017 Feb 24 12.36 18h 15m 41s -18° 59’ 00” Sagittarius
2017 Feb 25 12.36 18h 17m 03s -18° 57’ 47” Sagittarius
2017 Feb 26 12.36 18h 18m 27s -18° 56’ 31” Sagittarius
2017 Feb 27 12.35 18h 19m 49s -18° 55’ 14” Sagittarius
2017 Feb 28 12.35 18h 21m 10s -18° 53’ 52” Sagittarius
2017 Mar 01 12.35 18h 22m 30s -18° 52’ 27” Sagittarius

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 January 2030

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 January 2030

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 30 July 2016 00:00 UTC (JD: 2457600.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.19155221
Orbit inclination i 5.36795413°
Perihelion distance q 2.08122158 AU
311,346,318 km
Aphelion distance Q 3.06746364 AU
458,886,030 km
Semi-major axis a 2.57434261 AU
385,116,174 km
Orbital period period 4.1300 years
1,508.6828 days
Date of perihelion transit Tp 2016-Jan-30 23:22:42
2,457,418.4741 JD
Next perihelion transit 2020-Mar-18 15:45
2,458,927.1569 JD
Argument of perihelion peri 358.87889591109°
Longitude of the ascending node node 141.59196169646°
Mean anomaly M 43.434789928907°
Mean motion n 0.23861874°/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 2030-Jan-01, with a sampling interval of 1 day.