Comet 80P/Peters-Hartley
Comet 80P/Peters-Hartley is in the constellation of
Triangulum,
at a distance of
Finder Charts
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High precision deep sky finder chart, 60 arcmin wide, showing where Comet 80P/Peters-Hartley is right now. Click on the image to see a more detailed fullscreen tracker view.
Also check out Where is Comet 80P/Peters-Hartley?, a page that provides all the information needed to find Comet 80P/Peters-Hartley in the sky and additional links to sky charts.
Celestial Coordinates
Apparent
J2000
Additional Information
The observed values of Magnitude, Coma Diameter and Tail Length are derived from the most recent observation recorded at the Comet Observers Database. The value of Predicted Magnitude comes from the JPL Horizons ephemerides service and, in the case of comets, might be inaccurate given the highly dynamic and unpredictable behavior of these objects. When available, please refer to the Observed Magnitude value and consider the Predicted 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.
Rise and Set Times
Today's rise, transit and set times of Comet 80P/Peters-Hartley from Greenwich, UK (all times relative to the local timezone Europe/London):
- 80P/Peters-Hartley is above the horizon from Greenwich, UK.
- Right now it is placed in the North-North-East direction at an altitude of 1.79° above the horizon.
- Given its current magnitude, 80P/Peters-Hartley is visible only through long exposure photography.
- Go to interactive sky chart
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Distance from Earth
The distance of Comet 80P/Peters-Hartley from Earth is currently
The following chart shows the distance of Comet 80P/Peters-Hartley from Earth as a function of time. In the chart the distance data is measured in Astronomical Units and sampled with an interval of 1 day.
The value of the reported distance might be somewhat inaccurate around the times of closest approach for objects passing extremely close to Earth. The value of the distance of 80P/Peters-Hartley from Earth is also available as a real time updated value in the Live Position and Data Tracker.
Closest Approach
Between 1 January 2000 and 31 December 2099, the closest approach of Comet 80P/Peters-Hartley to Earth happens on Sat Jun 6 2093 at a distance of 0.614406 Astronomical Units, or 91,913,851 kilometers:
NOTE: values for the closest approach are computed with a sampling interval of 1 day.
Light Curve
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.
Orbital Elements
The following table lists the orbital elements of Comet 80P/Peters-Hartley at epoch 12 April 2017 00:00 UTC (JD: 2457856.5). Source: JPL Small-Body Database
| Element | Symbol | Value |
|---|---|---|
| Orbit eccentricity | e | 0.59940950 |
| Orbit inclination | i | 29.93110501° |
| Perihelion distance | q | 1.61176276 AU 241,116,278 km |
| Aphelion distance | Q |
6.43517186 AU 962,688,010 km |
| Semi-major axis | a |
4.02346731 AU 601,902,144 km |
| Orbital period | period |
8.0707 years 2,947.8077 days |
| Date of perihelion transit | Tp | 2014-Nov-10 06:46:41 2,456,971.7824 JD |
| Next perihelion transit | 2022-Dec-06 02:09 2,459,919.5901 JD |
|
| Argument of perihelion | peri | 339.16560416497° |
| Longitude of the ascending node | node | 259.84435125517° |
| Mean anomaly | M | 108.04583074418° |
| Mean motion | n | 0.12212466°/day |
View Comet 80P/Peters-Hartley in the 3D Solar System Simulator
15 Days 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. Apparent celestial coordinates are provided.
| Date | Right AscensionR.A. | DeclinationDec. | MagnitudeMag | Constellation |
|---|---|---|---|---|
| 2025 Jun 11 | 02h 31m 57s | +33° 38’ 01” | 27.83 | Triangulum |
| 2025 Jun 12 | 02h 32m 39s | +33° 41’ 40” | 27.83 | Triangulum |
| 2025 Jun 13 | 02h 33m 21s | +33° 45’ 19” | 27.83 | Triangulum |
| 2025 Jun 14 | 02h 34m 03s | +33° 48’ 58” | 27.83 | Triangulum |
| 2025 Jun 15 | 02h 34m 45s | +33° 52’ 37” | 27.83 | Triangulum |
| 2025 Jun 16 | 02h 35m 26s | +33° 56’ 15” | 27.83 | Triangulum |
| 2025 Jun 17 | 02h 36m 07s | +33° 59’ 54” | 27.83 | Triangulum |
| 2025 Jun 18 | 02h 36m 48s | +34° 03’ 32” | 27.83 | Triangulum |
| 2025 Jun 19 | 02h 37m 28s | +34° 07’ 10” | 27.83 | Triangulum |
| 2025 Jun 20 | 02h 38m 08s | +34° 10’ 48” | 27.83 | Triangulum |
| 2025 Jun 21 | 02h 38m 49s | +34° 14’ 26” | 27.83 | Triangulum |
| 2025 Jun 22 | 02h 39m 28s | +34° 18’ 03” | 27.84 | Triangulum |
| 2025 Jun 23 | 02h 40m 07s | +34° 21’ 41” | 27.84 | Triangulum |
| 2025 Jun 24 | 02h 40m 46s | +34° 25’ 17” | 27.84 | Triangulum |
Additional Resources on TheSkyLive
- Comet 80P/Peters-Hartley: Complete reference information on TheSkyLive.com.
- Where is Comet 80P/Peters-Hartley?: Key information on where to find Comet 80P/Peters-Hartley in the sky.
- Distance from Earth: Find out how far Comet 80P/Peters-Hartley is from Earth right now.
- How Bright is Comet 80P/Peters-Hartley?: Current visual brightness (magnitude) and apparent size.
- Rise and Set Times: Rise and set times of Comet 80P/Peters-Hartley from your location.
- Interactive Sky Map: Planetarium-style interactive visualization of Comet 80P/Peters-Hartley's position in the sky.
- Live Position Tracker: High precision position tracker with deep space imagery.
- Ephemeris: 15 days Comet 80P/Peters-Hartley's computed ephemeris.
- Orbital elements: Information about Comet 80P/Peters-Hartley orbital parameters.
- Orbit Visualization: 3D interactive visualization showing the orbit of Comet 80P/Peters-Hartley with respect to the major Solar System objects.