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Comet Halley (1P/Halley)

Available Resources

Comet Halley (1P/Halley) Sky Charts and Coordinates

This is a simplified sky chart, showing where Comet Halley (1P/Halley) 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.

Comet Halley (1P/Halley) in Hydra on November, 20 2018
High Precision Live Sky Chart
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]
08h 29m 35s
+01° 41’ 08”
-
25.51
-

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 Halley (1P/Halley) Rise and Set Times

Today's Comet Halley (1P/Halley) rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the Europe/London timezone.

Azimuth: 88.3°
Max altitude: 40.2°
Azimuth: 271.7°

Comet Halley (1P/Halley) Orbit Diagram

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet Halley (1P/Halley) with respect of the Sun and the orbits of the major planets. The position of Comet Halley (1P/Halley) 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 Halley (1P/Halley)
View Comet Halley (1P/Halley) in the 3D Solar System Simulator

Comet Halley (1P/Halley) Ephemeris

The following table lists the ephemerides of Comet Halley (1P/Halley) computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet Halley (1P/Halley) in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2018 Nov 13 08h 29m 53s +01° 43’ 37” 25.52 Hydra
2018 Nov 14 08h 29m 52s +01° 43’ 15” 25.52 Hydra
2018 Nov 15 08h 29m 49s +01° 42’ 55” 25.52 Hydra
2018 Nov 16 08h 29m 47s +01° 42’ 34” 25.52 Hydra
2018 Nov 17 08h 29m 44s +01° 42’ 15” 25.52 Hydra
2018 Nov 18 08h 29m 41s +01° 41’ 54” 25.52 Hydra
2018 Nov 19 08h 29m 39s +01° 41’ 36” 25.52 Hydra
2018 Nov 20 08h 29m 36s +01° 41’ 17” 25.51 Hydra
2018 Nov 21 08h 29m 34s +01° 40’ 59” 25.51 Hydra
2018 Nov 22 08h 29m 30s +01° 40’ 42” 25.51 Hydra
2018 Nov 23 08h 29m 27s +01° 40’ 27” 25.51 Hydra
2018 Nov 24 08h 29m 25s +01° 40’ 10” 25.51 Hydra
2018 Nov 25 08h 29m 21s +01° 39’ 55” 25.51 Hydra
2018 Nov 26 08h 29m 17s +01° 39’ 41” 25.51 Hydra

Distance of Comet Halley (1P/Halley) from Earth

The following chart shows the distance of Comet Halley (1P/Halley) 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 Halley's Comet is also available as a real time updated value in the Live Position and Data Tracker.

Distance of Comet Halley (1P/Halley) from Earth between January 2013 and December 2075

Light Curve of Comet Halley (1P/Halley)

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet Halley (1P/Halley), 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.

Predicted magnitude of Comet Halley (1P/Halley) between January 2013 and December 2075

Comet Halley (1P/Halley) Orbital Elements

The following table lists the orbital elements of Comet Halley (1P/Halley) at epoch 16 February 1994 00:00 UTC (JD: 2449400.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.96714291
Orbit inclination i 162.26269058°
Perihelion distance q 0.58597811 AU
87,661,078 km
Aphelion distance Q 35.08231047 AU
5,248,238,957 km
Semi-major axis a 17.83414429 AU
2,667,950,017 km
Orbital period period 75.3200 years
27,509.1291 days
Date of perihelion transit Tp 1986-Feb-05 21:29:15
2,446,467.3953 JD
Next perihelion transit 2061-Jun-01 00:35
2,473,976.5244 JD
Argument of perihelion peri 111.33248510452°
Longitude of the ascending node node 58.420080976568°
Mean anomaly M 38.384264476439°
Mean motion n 0.01308656°/day
Closest approach to Earth* 2061-Jul-29
Distance of closest approach* 0.47799017 AU
71,506,311 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.