Your guide to the Solar System
🌎 Location: Greenwich, United Kingdom [change]
Comets » 

Comet Halley (1P/Halley)

Available Resources

Comet Halley (1P/Halley) Position

Comet Halley (1P/Halley) is currently in the constellation of Hydra. The current Right Ascension is 08h 22m 38s and the Declination is +02° 47’ 17”.

08h 22m 38s
+02° 47’ 17”

Simplified sky chart showing where Comet Halley (1P/Halley) is right now in the sky with respect to the brightest stars and constellations (see fuillscreen Online Planetarium)

Map showing Comet Halley (1P/Halley) in Hydra on July, 24 2019
Field of view: 60x30 degrees
View fullscreen
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Hihgher precision deep sky finder chart showing where Comet Halley (1P/Halley) is right now (view fullscreen)

Halley's Comet
RA: 08h 22m 38s
Dec: +02° 47’ 17”
Deep sky finder chart for Comet Halley (1P/Halley)
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet Halley (1P/Halley)?, a page that provides all the information needed to find Comet Halley (1P/Halley) in the sky and additional links to sky charts.

Comet Halley (1P/Halley) Distance

The distance of Comet Halley (1P/Halley) from Earth is currently 5,359,000,038 kilometers, equivalent to 35.822703 Astronomical Units. Light takes 4 hours, 57 minutes and 55.7000 seconds to travel from Comet Halley (1P/Halley) and arrive to us.

5,359,000,038
35.822703
4 hours, 57 minutes and 55.7000 seconds

The following chart shows the distance of Comet Halley (1P/Halley) 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.

Distance of Comet Halley (1P/Halley) from Earth between January 2013 and December 2100

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 Halley's Comet from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet Halley (1P/Halley) to Earth

Between January 2013 and December 2100 the closest approach of Comet Halley (1P/Halley) to Earth happens on Fri Jul 29 2061 at a distance of 0.47799017 Astronomical Units, or 71,506,311 kilometers:

Fri Jul 29 2061
71,506,311
0.477990

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

Comet Halley (1P/Halley) brightness

The current visual magnitude of Comet Halley (1P/Halley) is 25.61.

25.61
-
-

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.

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 2100

Comet Halley (1P/Halley) rise and set times

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

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

Azimuth: 87.2°
Max altitude: 41.3°
Azimuth: 272.8°
Comet Halley (1P/Halley) is below the horizon from Greenwich, United Kingdom

The rise and set times are defined as the time at which the upper limb of Comet Halley (1P/Halley) touches the horizon, consideting the effect of the atmospheric refraction. As the atmoshpere conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.

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

Visualization of Comet Halley (1P/Halley) Orbit

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) 15 Days 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
2019 Jul 17 08h 21m 55s +02° 49’ 23” 25.61 Hydra
2019 Jul 18 08h 22m 00s +02° 49’ 06” 25.61 Hydra
2019 Jul 19 08h 22m 06s +02° 48’ 51” 25.61 Hydra
2019 Jul 20 08h 22m 13s +02° 48’ 33” 25.61 Hydra
2019 Jul 21 08h 22m 19s +02° 48’ 15” 25.61 Hydra
2019 Jul 22 08h 22m 26s +02° 47’ 57” 25.61 Hydra
2019 Jul 23 08h 22m 32s +02° 47’ 39” 25.61 Hydra
2019 Jul 24 08h 22m 37s +02° 47’ 20” 25.61 Hydra
2019 Jul 25 08h 22m 44s +02° 47’ 00” 25.61 Hydra
2019 Jul 26 08h 22m 50s +02° 46’ 40” 25.61 Hydra
2019 Jul 27 08h 22m 55s +02° 46’ 19” 25.61 Hydra
2019 Jul 28 08h 23m 02s +02° 45’ 59” 25.61 Hydra
2019 Jul 29 08h 23m 08s +02° 45’ 37” 25.61 Hydra
2019 Jul 30 08h 23m 14s +02° 45’ 15” 25.61 Hydra