Comet 185P/Petriew
Comet 185P/Petriew Sky Charts and Coordinates
This is a simplified sky chart, showing where Comet 185P/Petriew 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
Comet 185P/Petriew Rise and Set Times
Today's Comet 185P/Petriew rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the local timezone Europe/London.
Comet 185P/Petriew Orbit Diagram
This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 185P/Petriew with respect of the Sun and the orbits of the major planets. The position of Comet 185P/Petriew 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 Comet 185P/Petriew in the 3D Solar System Simulator
Comet 185P/Petriew Ephemeris
The following table lists the ephemerides of Comet 185P/Petriew computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 185P/Petriew in our Online Planetarium at the chosen date.
| Date | MagnitudeMag | Right AscensionR.A. | DeclinationDec. | Constellation |
|---|---|---|---|---|
| 2018 Apr 12 | 16.22 | 05h 08m 26s | +11° 25’ 32” | Orion |
| 2018 Apr 13 | 16.27 | 05h 12m 11s | +11° 29’ 38” | Orion |
| 2018 Apr 14 | 16.32 | 05h 15m 56s | +11° 33’ 28” | Orion |
| 2018 Apr 15 | 16.37 | 05h 19m 37s | +11° 37’ 01” | Orion |
| 2018 Apr 16 | 16.41 | 05h 23m 18s | +11° 40’ 22” | Orion |
| 2018 Apr 17 | 16.46 | 05h 26m 57s | +11° 43’ 27” | Orion |
| 2018 Apr 18 | 16.51 | 05h 30m 33s | +11° 46’ 18” | Orion |
| 2018 Apr 19 | 16.56 | 05h 34m 08s | +11° 48’ 53” | Orion |
| 2018 Apr 20 | 16.60 | 05h 37m 41s | +11° 51’ 16” | Orion |
| 2018 Apr 21 | 16.65 | 05h 41m 12s | +11° 53’ 25” | Orion |
| 2018 Apr 22 | 16.70 | 05h 44m 42s | +11° 55’ 19” | Orion |
| 2018 Apr 23 | 16.75 | 05h 48m 09s | +11° 57’ 02” | Orion |
| 2018 Apr 24 | 16.79 | 05h 51m 34s | +11° 58’ 29” | Orion |
| 2018 Apr 25 | 16.84 | 05h 54m 59s | +11° 59’ 45” | Orion |
Distance of Comet 185P/Petriew from Earth
The following chart shows the distance of Comet 185P/Petriew 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 185P/Petriew is also available as a real time updated value in the Live Position and Data Tracker.
Light Curve of Comet 185P/Petriew
The following chart is the predicted light curve (visual magnitude as a function of time) of Comet 185P/Petriew, 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.
Comet 185P/Petriew Orbital Elements
The following table lists the orbital elements of Comet 185P/Petriew at epoch 25 September 2012 00:00 UTC (JD: 2456196.5). Source: JPL Small-Body Database
| Element | Symbol | Value |
|---|---|---|
| Orbit eccentricity | e | 0.69946456 |
| Orbit inclination | i | 14.00756391° |
| Perihelion distance | q | 0.93185156 AU 139,403,009 km |
| Aphelion distance | Q |
5.26942409 AU 788,294,626 km |
| Semi-major axis | a |
3.10063783 AU 463,848,818 km |
| Orbital period | period |
5.4600 years 1,994.2288 days |
| Date of perihelion transit | Tp | 2012-Aug-13 13:52:47 2,456,153.0783 JD |
| Next perihelion transit | 2018-Jan-28 19:22 2,458,147.3072 JD |
|
| Argument of perihelion | peri | 181.94294872554° |
| Longitude of the ascending node | node | 214.09071909648° |
| Mean anomaly | M | 7.8385193341644° |
| Mean motion | n | 0.18052091°/day |
| Closest approach to Earth* | 2056-Nov-07 | |
| Distance of closest approach* | 0.28176199 AU 42,150,993 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.