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🌎 Location: Greenwich, United Kingdom [change]

Comet 88P/Howell

Comet 88P/Howell is currently in the constellation of Capricornus. The current Right Ascension of Comet 88P/Howell is 20h 16m 26s and the Declination is -23° 33’ 27” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet 88P/Howell is 15.05 (JPL) while the latest observed magnitude is 9.7 (COBS).

Summary of key facts about Comet 88P/Howell [tip: you can also create a Quick Access page for this data if you access it frequently and would like to have a simpler view]:

20h 16m 26s
-23° 33’ 27”

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Additional information about Comet 88P/Howell available on TheSkyLive:

Available Resources

Comet 88P/Howell Position and Finder Charts

Below we provide Comet 88P/Howell 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.

Map showing Comet 88P/Howell in Capricornus on November, 24 2020
Field of view: 50x30 degrees
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Map showing Comet 88P/Howell in Capricornus on November, 24 2020
Field of view: 10x6 degrees
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 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Higher precision deep sky finder chart, 60 arcmin wide, showing where Comet 88P/Howell is right now. Click on the image to see a more detailed fullscreen tracker view.

RA: 20h 16m 26s
Dec: -23° 33’ 27”
Deep sky finder chart for Comet 88P/Howell
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 88P/Howell?, a page that provides all the information needed to find Comet 88P/Howell in the sky and additional links to sky charts.

Comet 88P/Howell Distance from Earth

The distance of Comet 88P/Howell from Earth is currently 261,045,215 kilometers, equivalent to 1.744979 Astronomical Units. Light takes 14 minutes and 30.7531 seconds to travel from Comet 88P/Howell and arrive to us.

14 minutes and 30.7531 seconds

The following chart shows the distance of Comet 88P/Howell 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 88P/Howell 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 88P/Howell from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet 88P/Howell to Earth

Between January 2013 and December 2100, the closest approach of Comet 88P/Howell to Earth happens on Mon Jun 2 2042 at a distance of 0.766145 Astronomical Units, or 114,613,682 kilometers:

Mon Jun 2 2042

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

Comet 88P/Howell brightness

The current visual magnitude of Comet 88P/Howell is 15.05.


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 behavior 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 88P/Howell, 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 88P/Howell between January 2013 and December 2100

Comet 88P/Howell 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 88P/Howell rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 113.5°
Max altitude: 15.0°
Azimuth: 246.6°

The rise and set times are defined as the time at which the upper limb of Comet 88P/Howell touches the horizon, considering the effect of the atmospheric refraction. As the atmospheric conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.

Comet 88P/Howell Orbital Elements

The following table lists the orbital elements of Comet 88P/Howell at epoch 08 October 2015 00:00 UTC (JD: 2457304.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.56307338
Orbit inclination i 4.38277078°
Perihelion distance q 1.35850301 AU
203,229,159 km
Aphelion distance Q 4.85994625 AU
727,037,611 km
Semi-major axis a 3.10922463 AU
465,133,385 km
Orbital period period 5.4800 years
2,002.5187 days
Date of perihelion transit Tp 2015-Apr-06 05:25:31
2,457,118.7261 JD
Next perihelion transit 2020-Sep-28 17:52
2,459,121.2447 JD
Argument of perihelion peri 235.90979701093°
Longitude of the ascending node node 56.698288001377°
Mean anomaly M 33.397251292752°
Mean motion n 0.17977360°/day

Visualization of Comet 88P/Howell Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 88P/Howell with respect of the Sun and the orbits of the major planets. The position of Comet 88P/Howell 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 88P/Howell
View Comet 88P/Howell in the 3D Solar System Simulator

Comet 88P/Howell 15 Days Ephemeris

The following table lists the ephemerides of Comet 88P/Howell computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 88P/Howell in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2020 Nov 17 19h 50m 07s -24° 54’ 16” 14.88 Sagittarius
2020 Nov 18 19h 53m 48s -24° 43’ 59” 14.90 Sagittarius
2020 Nov 19 19h 57m 29s -24° 33’ 27” 14.93 Sagittarius
2020 Nov 20 20h 01m 08s -24° 22’ 36” 14.95 Sagittarius
2020 Nov 21 20h 04m 45s -24° 11’ 29” 14.97 Sagittarius
2020 Nov 22 20h 08m 21s -24° 00’ 06” 14.99 Capricornus
2020 Nov 23 20h 11m 57s -23° 48’ 27” 15.01 Capricornus
2020 Nov 24 20h 15m 30s -23° 36’ 33” 15.04 Capricornus
2020 Nov 25 20h 19m 04s -23° 24’ 24” 15.06 Capricornus
2020 Nov 26 20h 22m 35s -23° 12’ 01” 15.08 Capricornus
2020 Nov 27 20h 26m 04s -22° 59’ 23” 15.11 Capricornus
2020 Nov 28 20h 29m 34s -22° 46’ 33” 15.13 Capricornus
2020 Nov 29 20h 33m 01s -22° 33’ 29” 15.15 Capricornus
2020 Nov 30 20h 36m 27s -22° 20’ 13” 15.18 Capricornus