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 |
|---|---|---|---|---|
| 2019 Feb 12 | 03h 22m 40s | +27° 45’ 06” | 31.19 | Aries |
| 2019 Feb 13 | 03h 22m 50s | +27° 43’ 04” | 31.20 | Aries |
| 2019 Feb 14 | 03h 22m 59s | +27° 41’ 03” | 31.20 | Aries |
| 2019 Feb 15 | 03h 23m 12s | +27° 39’ 06” | 31.21 | Aries |
| 2019 Feb 16 | 03h 23m 22s | +27° 37’ 10” | 31.21 | Aries |
| 2019 Feb 17 | 03h 23m 35s | +27° 35’ 20” | 31.22 | Aries |
| 2019 Feb 18 | 03h 23m 48s | +27° 33’ 30” | 31.22 | Aries |
| 2019 Feb 19 | 03h 24m 02s | +27° 31’ 45” | 31.22 | Aries |
| 2019 Feb 20 | 03h 24m 16s | +27° 30’ 03” | 31.23 | Aries |
| 2019 Feb 21 | 03h 24m 30s | +27° 28’ 23” | 31.23 | Aries |
| 2019 Feb 22 | 03h 24m 47s | +27° 26’ 48” | 31.24 | Aries |
| 2019 Feb 23 | 03h 25m 02s | +27° 25’ 14” | 31.24 | Aries |
| 2019 Feb 24 | 03h 25m 19s | +27° 23’ 43” | 31.25 | Aries |
| 2019 Feb 25 | 03h 25m 36s | +27° 22’ 14” | 31.25 | Aries |
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* | 2093-Jun-06 | |
| Distance of closest approach* | 0.61180307 AU 91,524,437 km |
* NOTE: values for the closest approach are computed for the time interval between 2013-Jan-01 and 2100-Dec-31, with a sampling interval of 1 day.