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.
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 |
|---|---|---|---|---|
| 2017 Sep 15 | 12.29 | 18h 18m 14s | -20° 28’ 18” | Sagittarius |
| 2017 Sep 16 | 12.30 | 18h 18m 46s | -20° 29’ 57” | Sagittarius |
| 2017 Sep 17 | 12.31 | 18h 19m 18s | -20° 31’ 35” | Sagittarius |
| 2017 Sep 18 | 12.33 | 18h 19m 53s | -20° 33’ 11” | Sagittarius |
| 2017 Sep 19 | 12.34 | 18h 20m 29s | -20° 34’ 45” | Sagittarius |
| 2017 Sep 20 | 12.36 | 18h 21m 05s | -20° 36’ 15” | Sagittarius |
| 2017 Sep 21 | 12.37 | 18h 21m 42s | -20° 37’ 45” | Sagittarius |
| 2017 Sep 22 | 12.38 | 18h 22m 20s | -20° 39’ 12” | Sagittarius |
| 2017 Sep 23 | 12.40 | 18h 23m 00s | -20° 40’ 36” | Sagittarius |
| 2017 Sep 24 | 12.41 | 18h 23m 41s | -20° 41’ 59” | Sagittarius |
| 2017 Sep 25 | 12.42 | 18h 24m 24s | -20° 43’ 21” | Sagittarius |
| 2017 Sep 26 | 12.43 | 18h 25m 06s | -20° 44’ 39” | Sagittarius |
| 2017 Sep 27 | 12.45 | 18h 25m 50s | -20° 45’ 54” | Sagittarius |
| 2017 Sep 28 | 12.46 | 18h 26m 35s | -20° 47’ 08” | 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.
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 03 September 2017 00:00 UTC (JD: 2458000.5). Source: JPL Small-Body Database
| Element | Symbol | Value |
|---|---|---|
| Orbit eccentricity | e | 0.19146493 |
| Orbit inclination | i | 5.36794595° |
| Perihelion distance | q | 2.08059138 AU 311,252,041 km |
| Aphelion distance | Q |
3.06597916 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 | 358.75692410097° |
| Longitude of the ascending node | node | 141.58348325° |
| Mean anomaly | M | 139.06216629999° |
| 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.