Asteroid 17 Thetis
Asteroid 17 Thetis Sky Charts and Coordinates
This is a simplified sky chart, showing where Asteroid 17 Thetis 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 17 Thetis Rise and Set Times
Today's Asteroid 17 Thetis rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the Europe/London timezone.
Asteroid 17 Thetis Orbit Diagram
This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Asteroid 17 Thetis with respect of the Sun and the orbits of the major planets. The position of Asteroid 17 Thetis 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 17 Thetis in the 3D Solar System Simulator
Asteroid 17 Thetis Ephemeris
The following table lists the ephemerides of Asteroid 17 Thetis computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Asteroid 17 Thetis in our Online Planetarium at the chosen date.
| Date | Right AscensionR.A. | DeclinationDec. | MagnitudeMag | Constellation |
|---|---|---|---|---|
| 2018 Sep 18 | 09h 55m 24s | +13° 26’ 53” | 13.23 | Leo |
| 2018 Sep 19 | 09h 57m 02s | +13° 19’ 24” | 13.23 | Leo |
| 2018 Sep 20 | 09h 58m 40s | +13° 11’ 53” | 13.23 | Leo |
| 2018 Sep 21 | 10h 00m 16s | +13° 04’ 20” | 13.23 | Leo |
| 2018 Sep 22 | 10h 01m 54s | +12° 56’ 48” | 13.24 | Leo |
| 2018 Sep 23 | 10h 03m 30s | +12° 49’ 13” | 13.24 | Leo |
| 2018 Sep 24 | 10h 05m 08s | +12° 41’ 36” | 13.24 | Leo |
| 2018 Sep 25 | 10h 06m 43s | +12° 34’ 00” | 13.24 | Leo |
| 2018 Sep 26 | 10h 08m 20s | +12° 26’ 21” | 13.24 | Leo |
| 2018 Sep 27 | 10h 09m 56s | +12° 18’ 42” | 13.24 | Leo |
| 2018 Sep 28 | 10h 11m 31s | +12° 11’ 00” | 13.24 | Leo |
| 2018 Sep 29 | 10h 13m 08s | +12° 03’ 20” | 13.24 | Leo |
| 2018 Sep 30 | 10h 14m 44s | +11° 55’ 37” | 13.24 | Leo |
| 2018 Oct 01 | 10h 16m 18s | +11° 47’ 54” | 13.24 | Leo |
Distance of Asteroid 17 Thetis from Earth
The following chart shows the distance of Asteroid 17 Thetis 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 17 Thetis is also available as a real time updated value in the Live Position and Data Tracker.
Light Curve of Asteroid 17 Thetis
The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid 17 Thetis, 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 17 Thetis Physical Data
The following shows the known values of the most important physical parameters of Asteroid 17 Thetis. Source: JPL Small-Body Database
| Physical Parameter | Value | Relative to Earth |
|---|---|---|
| Diameter | 90.04 km | 0.0071 |
| Sideral Rotation | 12.2705 hours | 0.5127 |
| Absolute Magnitude | 7.76 | |
| Geometric Albedo | 0.1715 | |
Asteroid 17 Thetis Orbital Elements
The following table lists the orbital elements of Asteroid 17 Thetis at epoch 22 March 2018 00:00 UTC (JD: 2458200.5). Source: JPL Small-Body Database
| Element | Symbol | Value |
|---|---|---|
| Orbit eccentricity | e | 0.13279018 |
| Orbit inclination | i | 5.59066005° |
| Perihelion distance | q | 2.14269447 AU 320,542,530 km |
| Aphelion distance | Q |
2.79888813 AU 418,707,706 km |
| Semi-major axis | a |
2.47079130 AU 369,625,118 km |
| Orbital period | period |
3.8800 years 1,418.5757 days |
| Date of perihelion transit | Tp | 2019-Dec-06 01:18:00 2,458,823.5542 JD |
| Argument of perihelion | peri | 136.14643176429° |
| Longitude of the ascending node | node | 125.55329958453° |
| Mean anomaly | M | 201.88401192455° |
| Mean motion | n | 0.25377567°/day |
| Closest approach to Earth* | 2035-Jun-10 | |
| Distance of closest approach* | 1.13909761 AU 170,406,578 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.