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Comet 88P/Howell

Available Resources

Comet 88P/Howell Sky Charts and Coordinates

This is a simplified sky chart, showing where Comet 88P/Howell 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 88P/Howell in Leo on October, 16 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]
09h 42m 26s
+17° 52’ 06”

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 88P/Howell Rise and Set Times

Today's Comet 88P/Howell rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the Europe/London timezone.

Azimuth: 72.1°
Max altitude: 56.4°
Azimuth: 287.9°

Comet 88P/Howell Orbit Diagram

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 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
2018 Oct 09 09h 37m 05s +18° 12’ 36” 22.49 Leo
2018 Oct 10 09h 37m 49s +18° 09’ 51” 22.48 Leo
2018 Oct 11 09h 38m 30s +18° 07’ 09” 22.47 Leo
2018 Oct 12 09h 39m 11s +18° 04’ 28” 22.46 Leo
2018 Oct 13 09h 39m 52s +18° 01’ 50” 22.45 Leo
2018 Oct 14 09h 40m 33s +17° 59’ 15” 22.44 Leo
2018 Oct 15 09h 41m 13s +17° 56’ 40” 22.43 Leo
2018 Oct 16 09h 41m 53s +17° 54’ 10” 22.42 Leo
2018 Oct 17 09h 42m 33s +17° 51’ 41” 22.41 Leo
2018 Oct 18 09h 43m 12s +17° 49’ 14” 22.40 Leo
2018 Oct 19 09h 43m 50s +17° 46’ 50” 22.39 Leo
2018 Oct 20 09h 44m 27s +17° 44’ 30” 22.38 Leo
2018 Oct 21 09h 45m 06s +17° 42’ 11” 22.37 Leo
2018 Oct 22 09h 45m 42s +17° 39’ 56” 22.36 Leo

Distance of Comet 88P/Howell from Earth

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

Distance of Comet 88P/Howell from Earth between January 2013 and December 2075

Light Curve of Comet 88P/Howell

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 2075

Comet 88P/Howell Orbital Elements

The following table lists the orbital elements of Comet 88P/Howell at epoch 23 January 2013 00:00 UTC (JD: 2456316.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.56210874
Orbit inclination i 4.38264987°
Perihelion distance q 1.36181094 AU
203,724,018 km
Aphelion distance Q 4.85804810 AU
726,753,653 km
Semi-major axis a 3.10992952 AU
465,238,835 km
Orbital period period 5.4800 years
2,003.1997 days
Date of perihelion transit Tp 2015-Apr-06 20:25:19
2,457,119.3509 JD
Next perihelion transit 2020-Sep-30 01:12
2,459,122.5506 JD
Argument of perihelion peri 235.83976799263°
Longitude of the ascending node node 56.743572332562°
Mean anomaly M 215.71766487491°
Mean motion n 0.17971249°/day
Closest approach to Earth* 2042-Jun-05
Distance of closest approach* 0.73631991 AU
110,151,891 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.