Asteroid 5 Astraea
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.
High Precision Live Sky Chart
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.
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!
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 May 18 | 12.80 | 23h 31m 41s | -04° 14’ 16” | Aquarius |
| 2018 May 19 | 12.79 | 23h 32m 43s | -04° 08’ 45” | Aquarius |
| 2018 May 20 | 12.79 | 23h 33m 44s | -04° 03’ 20” | Aquarius |
| 2018 May 21 | 12.78 | 23h 34m 45s | -03° 57’ 57” | Aquarius |
| 2018 May 22 | 12.78 | 23h 35m 47s | -03° 52’ 38” | Aquarius |
| 2018 May 23 | 12.77 | 23h 36m 47s | -03° 47’ 22” | Aquarius |
| 2018 May 24 | 12.76 | 23h 37m 46s | -03° 42’ 11” | Aquarius |
| 2018 May 25 | 12.76 | 23h 38m 45s | -03° 37’ 04” | Aquarius |
| 2018 May 26 | 12.75 | 23h 39m 45s | -03° 32’ 00” | Aquarius |
| 2018 May 27 | 12.74 | 23h 40m 42s | -03° 27’ 01” | Aquarius |
| 2018 May 28 | 12.74 | 23h 41m 40s | -03° 22’ 05” | Aquarius |
| 2018 May 29 | 12.73 | 23h 42m 38s | -03° 17’ 12” | Pisces |
| 2018 May 30 | 12.72 | 23h 43m 35s | -03° 12’ 25” | Pisces |
| 2018 May 31 | 12.72 | 23h 44m 30s | -03° 07’ 41” | Pisces |
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.
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.
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 22 March 2018 00:00 UTC (JD: 2458200.5). Source: JPL Small-Body Database
| Element | Symbol | Value |
|---|---|---|
| Orbit eccentricity | e | 0.19135853 |
| Orbit inclination | i | 5.36774504° |
| Perihelion distance | q | 2.08102795 AU 311,317,351 km |
| Aphelion distance | Q |
3.06594518 AU 458,658,872 km |
| Semi-major axis | a |
2.57348657 AU 384,988,111 km |
| Orbital period | period |
4.1300 years 1,507.9304 days |
| Date of perihelion transit | Tp | 2020-Mar-17 08:27:37 2,458,925.8525 JD |
| Argument of perihelion | peri | 358.74621269841° |
| Longitude of the ascending node | node | 141.58365207126° |
| Mean anomaly | M | 186.83092351406° |
| Mean motion | n | 0.23873782°/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.