Asteroid 20 Massalia
Asteroid 20 Massalia Sky Charts and Coordinates
This is a simplified sky chart, showing where Asteroid 20 Massalia 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 20 Massalia Rise and Set Times
Today's Asteroid 20 Massalia rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the local timezone Europe/London.
Asteroid 20 Massalia Orbit Diagram
This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Asteroid 20 Massalia with respect of the Sun and the orbits of the major planets. The position of Asteroid 20 Massalia 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 20 Massalia in the 3D Solar System Simulator
Asteroid 20 Massalia Ephemeris
The following table lists the ephemerides of Asteroid 20 Massalia computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Asteroid 20 Massalia in our Online Planetarium at the chosen date.
| Date | MagnitudeMag | Right AscensionR.A. | DeclinationDec. | Constellation |
|---|---|---|---|---|
| 2017 Aug 16 | 11.04 | 04h 35m 13s | +21° 47’ 39” | Taurus |
| 2017 Aug 17 | 11.03 | 04h 36m 59s | +21° 50’ 52” | Taurus |
| 2017 Aug 18 | 11.02 | 04h 38m 44s | +21° 53’ 59” | Taurus |
| 2017 Aug 19 | 11.01 | 04h 40m 27s | +21° 57’ 02” | Taurus |
| 2017 Aug 20 | 11.00 | 04h 42m 11s | +22° 00’ 01” | Taurus |
| 2017 Aug 21 | 10.98 | 04h 43m 54s | +22° 02’ 53” | Taurus |
| 2017 Aug 22 | 10.97 | 04h 45m 37s | +22° 05’ 40” | Taurus |
| 2017 Aug 23 | 10.96 | 04h 47m 20s | +22° 08’ 22” | Taurus |
| 2017 Aug 24 | 10.95 | 04h 49m 00s | +22° 10’ 59” | Taurus |
| 2017 Aug 25 | 10.94 | 04h 50m 41s | +22° 13’ 31” | Taurus |
| 2017 Aug 26 | 10.93 | 04h 52m 23s | +22° 15’ 57” | Taurus |
| 2017 Aug 27 | 10.91 | 04h 54m 02s | +22° 18’ 19” | Taurus |
| 2017 Aug 28 | 10.90 | 04h 55m 42s | +22° 20’ 35” | Taurus |
| 2017 Aug 29 | 10.89 | 04h 57m 21s | +22° 22’ 46” | Taurus |
Distance of Asteroid 20 Massalia from Earth
The following chart shows the distance of Asteroid 20 Massalia 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 20 Massalia is also available as a real time updated value in the Live Position and Data Tracker.
Light Curve of Asteroid 20 Massalia
The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid 20 Massalia, 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 20 Massalia Physical Data
The following shows the known values of the most important physical parameters of Asteroid 20 Massalia. Source: JPL Small-Body Database
| Physical Parameter | Value | Relative to Earth |
|---|---|---|
| Diameter | 145.5 km | 0.0114 |
| Sideral Rotation | 8.0980 hours | 0.3383 |
| Absolute Magnitude | 6.5 | |
| Geometric Albedo | 0.2096 | |
Asteroid 20 Massalia Orbital Elements
The following table lists the orbital elements of Asteroid 20 Massalia at epoch 03 September 2017 00:00 UTC (JD: 2458000.5). Source: JPL Small-Body Database
| Element | Symbol | Value |
|---|---|---|
| Orbit eccentricity | e | 0.14236455 |
| Orbit inclination | i | 0.70861636° |
| Perihelion distance | q | 2.06619389 AU 309,098,207 km |
| Aphelion distance | Q |
2.75215613 AU 411,716,697 km |
| Semi-major axis | a |
2.40917501 AU 360,407,452 km |
| Orbital period | period |
3.7400 years 1,365.8435 days |
| Date of perihelion transit | Tp | 2018-Feb-03 18:31:23 2,458,153.2718 JD |
| Argument of perihelion | peri | 256.57355746371° |
| Longitude of the ascending node | node | 206.10282989621° |
| Mean anomaly | M | 319.73342008372° |
| Mean motion | n | 0.26357338°/day |
| Closest approach to Earth* | 2048-Jan-06 | |
| Distance of closest approach* | 1.07706230 AU 161,126,227 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.