Comet 110P/Hartley
Comet 110P/Hartley is currently in the constellation of Scorpius, at a distance of 567,918,667 kilometers from Earth.
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The observed values of Magnitude, Coma Diameter and Tail Length are derived from the most recent observation recorded at the Comet Observers Database. The value of Predicted Magnitude comes from the JPL Horizons ephemerides service and, in the case of comets, might be inaccurate given the highly dynamic and unpredictable behavior of these objects. When available, please refer to the Observed Magnitude value and consider the Predicted 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.
Today's rise, transit and set times of Comet 110P/Hartley from Greenwich, United Kingdom (all times relative to the local timezone Europe/London):
- 110P/Hartley is below the horizon from Greenwich, United Kingdom .
- Given its current magnitude, 110P/Hartley is visible only through long exposure photography.
- Go to interactive sky chart
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Comet 110P/Hartley Position and Finder Charts
Field of view: 10x6 degrees
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Higher precision deep sky finder chart, 60 arcmin wide, showing where Comet 110P/Hartley is right now. Click on the image to see a more detailed fullscreen tracker view.
Also check out Where is Comet 110P/Hartley?, a page that provides all the information needed to find Comet 110P/Hartley in the sky and additional links to sky charts.
Comet 110P/Hartley Distance from Earth
The distance of Comet 110P/Hartley from Earth is currently 567,918,667 kilometers, equivalent to 3.796302 Astronomical Units. Light takes 31 minutes and 34.3728 seconds to travel from Comet 110P/Hartley and arrive to us.
The following chart shows the distance of Comet 110P/Hartley 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.
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 110P/Hartley from Earth is also available as a real time updated value in the Live Position and Data Tracker.
Closest Approach of Comet 110P/Hartley to Earth
Between 1 January 2013 and 30 December 2100, the closest approach of Comet 110P/Hartley to Earth happens on Wed Dec 31 2014 at a distance of 1.494125 Astronomical Units, or 223,517,893 kilometers:
NOTE: values for the closest approach are computed with a sampling interval of 1 day.
Comet 110P/Hartley Brightness and Light Curve
The following chart is the predicted light curve (visual magnitude as a function of time) of Comet 110P/Hartley, 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 110P/Hartley Orbital Elements
The following table lists the orbital elements of Comet 110P/Hartley at epoch 28 April 2018 00:00 UTC (JD: 2458237.5). Source: JPL Small-Body Database
| Element | Symbol | Value |
|---|---|---|
| Orbit eccentricity | e | 0.31626529 |
| Orbit inclination | i | 11.69814307° |
| Perihelion distance | q | 2.46453371 AU 368,688,996 km |
| Aphelion distance | Q |
4.74450123 AU 709,767,283 km |
| Semi-major axis | a |
3.60451747 AU 539,228,140 km |
| Orbital period | period |
6.8435 years 2,499.5920 days |
| Date of perihelion transit | Tp | 2014-Dec-16 16:11:12 2,457,008.1744 JD |
| Next perihelion transit | 2021-Oct-20 06:23 2,459,507.7665 JD |
|
| Argument of perihelion | peri | 167.39700880629° |
| Longitude of the ascending node | node | 287.52981463754° |
| Mean anomaly | M | 177.05177306679° |
| Mean motion | n | 0.14402350°/day |
Visualization of Comet 110P/Hartley Orbit
This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 110P/Hartley with respect of the Sun and the orbits of the major planets. The position of Comet 110P/Hartley 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 110P/Hartley in the 3D Solar System Simulator
Comet 110P/Hartley 15 Days Ephemeris
The following table lists the ephemerides of Comet 110P/Hartley computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 110P/Hartley in our Online Planetarium at the chosen date.
| Date | Right AscensionR.A. | DeclinationDec. | MagnitudeMag | Constellation |
|---|---|---|---|---|
| 2024 Apr 12 | 17h 06m 02s | -31° 41’ 39” | 23.21 | Scorpius |
| 2024 Apr 13 | 17h 05m 48s | -31° 42’ 11” | 23.21 | Scorpius |
| 2024 Apr 14 | 17h 05m 35s | -31° 42’ 41” | 23.21 | Scorpius |
| 2024 Apr 15 | 17h 05m 20s | -31° 43’ 09” | 23.20 | Scorpius |
| 2024 Apr 16 | 17h 05m 03s | -31° 43’ 33” | 23.20 | Scorpius |
| 2024 Apr 17 | 17h 04m 45s | -31° 43’ 55” | 23.20 | Scorpius |
| 2024 Apr 18 | 17h 04m 27s | -31° 44’ 15” | 23.19 | Scorpius |
| 2024 Apr 19 | 17h 04m 08s | -31° 44’ 31” | 23.19 | Scorpius |
| 2024 Apr 20 | 17h 03m 47s | -31° 44’ 45” | 23.19 | Scorpius |
| 2024 Apr 21 | 17h 03m 25s | -31° 44’ 57” | 23.18 | Scorpius |
| 2024 Apr 22 | 17h 03m 03s | -31° 45’ 05” | 23.18 | Scorpius |
| 2024 Apr 23 | 17h 02m 39s | -31° 45’ 10” | 23.18 | Scorpius |
| 2024 Apr 24 | 17h 02m 16s | -31° 45’ 11” | 23.17 | Scorpius |
| 2024 Apr 25 | 17h 01m 50s | -31° 45’ 11” | 23.17 | Scorpius |