Comet 80P/Peters-Hartley
Comet 80P/Peters-Hartley Sky Charts and Coordinates
This is a simplified sky chart, showing where Comet 80P/Peters-Hartley 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
The Observed Magnitude and Coma Diameter values are derived from the Comet Observers Database by averaging the values reported in recent observations (more recent than 4 days), when available. The Estimated Magnitude comes from the JPL Horizons ephemerides service and might be inaccurate given the highly dynamic and unpredictable behvior of comets. When available please refer to the Observed Magnitude value and consider the Estimated Magnitude as a directional indication. We acknowledge with thanks the comet observations from the COBS Comet Observation Database contributed by observers worldwide and used in this table to report recent comet observations.
Comet 80P/Peters-Hartley Rise and Set Times
Today's Comet 80P/Peters-Hartley rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the Europe/London timezone.
Comet 80P/Peters-Hartley Orbit Diagram
This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 80P/Peters-Hartley with respect of the Sun and the orbits of the major planets. The position of Comet 80P/Peters-Hartley 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 80P/Peters-Hartley in the 3D Solar System Simulator
Comet 80P/Peters-Hartley Ephemeris
The following table lists the ephemerides of Comet 80P/Peters-Hartley computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 80P/Peters-Hartley in our Online Planetarium at the chosen date.
| Date | Right AscensionR.A. | DeclinationDec. | MagnitudeMag | Constellation |
|---|---|---|---|---|
| 2018 Oct 09 | 04h 11m 44s | +33° 37’ 11” | 31.02 | Perseus |
| 2018 Oct 10 | 04h 11m 22s | +33° 36’ 47” | 31.01 | Perseus |
| 2018 Oct 11 | 04h 11m 00s | +33° 36’ 20” | 31.01 | Perseus |
| 2018 Oct 12 | 04h 10m 39s | +33° 35’ 50” | 31.00 | Perseus |
| 2018 Oct 13 | 04h 10m 15s | +33° 35’ 17” | 31.00 | Perseus |
| 2018 Oct 14 | 04h 09m 51s | +33° 34’ 40” | 31.00 | Perseus |
| 2018 Oct 15 | 04h 09m 28s | +33° 33’ 59” | 30.99 | Perseus |
| 2018 Oct 16 | 04h 09m 02s | +33° 33’ 15” | 30.99 | Perseus |
| 2018 Oct 17 | 04h 08m 36s | +33° 32’ 27” | 30.98 | Perseus |
| 2018 Oct 18 | 04h 08m 11s | +33° 31’ 36” | 30.98 | Perseus |
| 2018 Oct 19 | 04h 07m 44s | +33° 30’ 42” | 30.98 | Perseus |
| 2018 Oct 20 | 04h 07m 15s | +33° 29’ 43” | 30.97 | Perseus |
| 2018 Oct 21 | 04h 06m 47s | +33° 28’ 41” | 30.97 | Perseus |
| 2018 Oct 22 | 04h 06m 19s | +33° 27’ 34” | 30.97 | Perseus |
Distance of Comet 80P/Peters-Hartley from Earth
The following chart shows the distance of Comet 80P/Peters-Hartley 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 80P/Peters-Hartley is also available as a real time updated value in the Live Position and Data Tracker.
Light Curve of Comet 80P/Peters-Hartley
The following chart is the predicted light curve (visual magnitude as a function of time) of Comet 80P/Peters-Hartley, 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 80P/Peters-Hartley Orbital Elements
The following table lists the orbital elements of Comet 80P/Peters-Hartley at epoch 07 September 2014 00:00 UTC (JD: 2456908.5). Source: JPL Small-Body Database
| Element | Symbol | Value |
|---|---|---|
| Orbit eccentricity | e | 0.59899024 |
| Orbit inclination | i | 29.92275599° |
| Perihelion distance | q | 1.61272474 AU 241,260,188 km |
| Aphelion distance | Q |
6.43059444 AU 962,003,237 km |
| Semi-major axis | a |
4.02165959 AU 601,631,712 km |
| Orbital period | period |
8.0700 years 2,945.8212 days |
| Date of perihelion transit | Tp | 2014-Nov-10 00:56:25 2,456,971.5392 JD |
| Next perihelion transit | 2022-Dec-03 20:38 2,459,917.3604 JD |
|
| Argument of perihelion | peri | 339.13110514645° |
| Longitude of the ascending node | node | 259.88929985249° |
| Mean anomaly | M | 352.2961693179° |
| Mean motion | n | 0.12220701°/day |
| Closest approach to Earth* | 2062-Jun-02 | |
| Distance of closest approach* | 0.81555583 AU 122,005,415 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.