Comet 88P/Howell
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.
High Precision Live Sky Chart
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.
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!
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 |
|---|---|---|---|---|
| 2019 Apr 17 | 08h 59m 24s | +22° 06’ 34” | 20.94 | Cancer |
| 2019 Apr 18 | 08h 59m 25s | +22° 05’ 17” | 20.94 | Cancer |
| 2019 Apr 19 | 08h 59m 27s | +22° 03’ 56” | 20.94 | Cancer |
| 2019 Apr 20 | 08h 59m 30s | +22° 02’ 30” | 20.94 | Cancer |
| 2019 Apr 21 | 08h 59m 35s | +22° 01’ 00” | 20.94 | Cancer |
| 2019 Apr 22 | 08h 59m 40s | +21° 59’ 26” | 20.94 | Cancer |
| 2019 Apr 23 | 08h 59m 48s | +21° 57’ 47” | 20.94 | Cancer |
| 2019 Apr 24 | 08h 59m 56s | +21° 56’ 05” | 20.94 | Cancer |
| 2019 Apr 25 | 09h 00m 03s | +21° 54’ 20” | 20.94 | Cancer |
| 2019 Apr 26 | 09h 00m 14s | +21° 52’ 29” | 20.94 | Cancer |
| 2019 Apr 27 | 09h 00m 24s | +21° 50’ 35” | 20.94 | Cancer |
| 2019 Apr 28 | 09h 00m 35s | +21° 48’ 38” | 20.95 | Cancer |
| 2019 Apr 29 | 09h 00m 48s | +21° 46’ 36” | 20.95 | Cancer |
| 2019 Apr 30 | 09h 01m 03s | +21° 44’ 30” | 20.95 | Cancer |
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.
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.
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 2100-Dec-31, with a sampling interval of 1 day.