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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:44  
clear_day Transit: 12:57  
SunsetSet: 21:11 south
wb_twilight Civil TwilightWhat's Visible Now
Comets » 

Comet 80P/Peters-Hartley

Altitude: 54.5°   Azimuth: 138.0°   Direction: South-East

Comet 80P/Peters-Hartley is currently in the constellation of Pegasus. The current Right Ascension of Comet 80P/Peters-Hartley is 22h 22m 10s and the Declination is +21° 35’ 50” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom edit_location_alt). The current estimated magnitude of Comet 80P/Peters-Hartley is 19.88 (JPL).

22h 22m 10s
+21° 35’ 50”

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.

Today's rise, transit and set times of Comet 80P/Peters-Hartley from Greenwich, United Kingdom edit_location_alt (all times relative to the local timezone Europe/London):

Azimuth: 68.2°
Max altitude: 60.1°
Azimuth: 291.7°
  • 80P/Peters-Hartley is above the horizon from Greenwich, United Kingdom edit_location_alt.
  • Right now it is placed in the South-East direction at an altitude of 55° above the horizon.
  • Given its current magnitude, 80P/Peters-Hartley is visible only through long exposure photography.
  • Go to interactive sky chart

If you need to access this information frequently for your observations, you can create a simple customized Quick Access page, so that you can easily bookmark it in your browser favorites or add a shortcut to your mobile phones' home screen.

Available Resources

Comet 80P/Peters-Hartley Position and Finder Charts

Below we provide Comet 80P/Peters-Hartley finder charts showing where the object is right now in the sky with respect to the brightest stars. The first finder chart has a field of view of 50 degrees, while the second one has a field of view of 10 degrees. Click on each finder chart to access a full screen interactive Online Planetarium.

Finder chart of 80P/Peters-Hartley in Pegasus on June,09 2023
Map showing Comet 80P/Peters-Hartley in Pegasus on June, 09 2023
Field of view: 50x30 degrees
View fullscreen
Finder chart of 80P/Peters-Hartley
Map showing Comet 80P/Peters-Hartley in Pegasus on June, 09 2023
Field of view: 10x6 degrees
View fullscreen

Higher 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.

RA: 22h 22m 10s
Dec: +21° 35’ 50”
Deep sky finder chart for Comet 80P/Peters-Hartley
Field of view: 60x40 arcmins
View fullscreen

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.

Comet 80P/Peters-Hartley Distance from Earth

The distance of Comet 80P/Peters-Hartley from Earth is currently 321,716,776 kilometers, equivalent to 2.150544 Astronomical Units. Light takes 17 minutes and 53.1317 seconds to travel from Comet 80P/Peters-Hartley and arrive to us.

17 minutes and 53.1317 seconds

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.

Chart of the distance of Comet 80P/Peters-Hartley from Earth in Astronomical Units (au)

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 of Comet 80P/Peters-Hartley to Earth

Between 1 January 2013 and 30 December 2100, the closest approach of Comet 80P/Peters-Hartley to Earth happens on Sat Jun 6 2093 at a distance of 0.611427 Astronomical Units, or 91,468,118 kilometers:

Sat Jun 6 2093

NOTE: values for the closest approach are computed with a sampling interval of 1 day.

Comet 80P/Peters-Hartley Brightness and 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.

Chart of the magnitude of Comet 80P/Peters-Hartley as a function of time

Comet 80P/Peters-Hartley Orbital Elements

The following table lists the orbital elements of Comet 80P/Peters-Hartley at epoch 31 October 2000 00:00 UTC (JD: 2451849.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.59671245
Orbit inclination i 29.87212276°
Perihelion distance q 1.63076532 AU
243,959,020 km
Aphelion distance Q 6.45659224 AU
965,892,454 km
Semi-major axis a 4.04367878 AU
604,925,737 km
Orbital period period 8.1315 years
2,970.0475 days
Date of perihelion transit Tp 1998-Aug-10 20:49:49
2,451,036.3679 JD
Next perihelion transit 2006-Sep-27 21:58
2,454,006.4155 JD
Argument of perihelion peri 338.63940554993°
Longitude of the ascending node node 259.89683052047°
Mean anomaly M 98.559884738467°
Mean motion n 0.12121018°/day

Visualization of Comet 80P/Peters-Hartley Orbit

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!

Orbit Diagram of Comet 80P/Peters-Hartley
View Comet 80P/Peters-Hartley in the 3D Solar System Simulator

Comet 80P/Peters-Hartley 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. 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
2023 Jun 02 22h 18m 56s +19° 28’ 00” 19.79 Pegasus
2023 Jun 03 22h 19m 28s +19° 46’ 11” 19.80 Pegasus
2023 Jun 04 22h 19m 58s +20° 04’ 18” 19.81 Pegasus
2023 Jun 05 22h 20m 26s +20° 22’ 18” 19.83 Pegasus
2023 Jun 06 22h 20m 53s +20° 40’ 12” 19.84 Pegasus
2023 Jun 07 22h 21m 20s +20° 58’ 00” 19.85 Pegasus
2023 Jun 08 22h 21m 43s +21° 15’ 42” 19.86 Pegasus
2023 Jun 09 22h 22m 06s +21° 33’ 15” 19.88 Pegasus
2023 Jun 10 22h 22m 27s +21° 50’ 44” 19.89 Pegasus
2023 Jun 11 22h 22m 47s +22° 08’ 04” 19.90 Pegasus
2023 Jun 12 22h 23m 06s +22° 25’ 18” 19.91 Pegasus
2023 Jun 13 22h 23m 22s +22° 42’ 24” 19.92 Pegasus
2023 Jun 14 22h 23m 38s +22° 59’ 21” 19.94 Pegasus
2023 Jun 15 22h 23m 52s +23° 16’ 11” 19.95 Pegasus