Comet 110P/Hartley 3
Comet 110P/Hartley 3 Sky Charts and Coordinates
This is a simplified sky chart, showing where Comet 110P/Hartley 3 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 110P/Hartley 3 Rise and Set Times
Today's Comet 110P/Hartley 3 rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the Europe/London timezone.
Comet 110P/Hartley 3 Orbit Diagram
This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 110P/Hartley 3 with respect of the Sun and the orbits of the major planets. The position of Comet 110P/Hartley 3 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 3 in the 3D Solar System Simulator
Comet 110P/Hartley 3 Ephemeris
The following table lists the ephemerides of Comet 110P/Hartley 3 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 3 in our Online Planetarium at the chosen date.
| Date | Right AscensionR.A. | DeclinationDec. | MagnitudeMag | Constellation |
|---|---|---|---|---|
| 2018 Oct 10 | 18h 18m 56s | -23° 36’ 33” | 24.20 | Sagittarius |
| 2018 Oct 11 | 18h 19m 28s | -23° 35’ 18” | 24.20 | Sagittarius |
| 2018 Oct 12 | 18h 20m 00s | -23° 34’ 04” | 24.21 | Sagittarius |
| 2018 Oct 13 | 18h 20m 34s | -23° 32’ 48” | 24.22 | Sagittarius |
| 2018 Oct 14 | 18h 21m 07s | -23° 31’ 33” | 24.22 | Sagittarius |
| 2018 Oct 15 | 18h 21m 42s | -23° 30’ 17” | 24.23 | Sagittarius |
| 2018 Oct 16 | 18h 22m 17s | -23° 29’ 00” | 24.23 | Sagittarius |
| 2018 Oct 17 | 18h 22m 51s | -23° 27’ 43” | 24.24 | Sagittarius |
| 2018 Oct 18 | 18h 23m 29s | -23° 26’ 26” | 24.24 | Sagittarius |
| 2018 Oct 19 | 18h 24m 06s | -23° 25’ 09” | 24.25 | Sagittarius |
| 2018 Oct 20 | 18h 24m 42s | -23° 23’ 49” | 24.25 | Sagittarius |
| 2018 Oct 21 | 18h 25m 20s | -23° 22’ 31” | 24.26 | Sagittarius |
| 2018 Oct 22 | 18h 25m 59s | -23° 21’ 11” | 24.26 | Sagittarius |
| 2018 Oct 23 | 18h 26m 39s | -23° 19’ 50” | 24.27 | Sagittarius |
Distance of Comet 110P/Hartley 3 from Earth
The following chart shows the distance of Comet 110P/Hartley 3 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 110P/Hartley 3 is also available as a real time updated value in the Live Position and Data Tracker.
Light Curve of Comet 110P/Hartley 3
The following chart is the predicted light curve (visual magnitude as a function of time) of Comet 110P/Hartley 3, 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 3 Orbital Elements
The following table lists the orbital elements of Comet 110P/Hartley 3 at epoch 07 September 2011 00:00 UTC (JD: 2455812.5). Source: JPL Small-Body Database
| Element | Symbol | Value |
|---|---|---|
| Orbit eccentricity | e | 0.31348058 |
| Orbit inclination | i | 11.68733184° |
| Perihelion distance | q | 2.48099115 AU 371,150,995 km |
| Aphelion distance | Q |
4.74674656 AU 710,103,179 km |
| Semi-major axis | a |
3.61386885 AU 540,627,087 km |
| Orbital period | period |
6.8700 years 2,509.3256 days |
| Date of perihelion transit | Tp | 2014-Dec-18 00:28:07 2,457,009.5195 JD |
| Next perihelion transit | 2021-Oct-31 08:16 2,459,518.8451 JD |
|
| Argument of perihelion | peri | 167.59582598398° |
| Longitude of the ascending node | node | 287.70603608175° |
| Mean anomaly | M | 188.26977894764° |
| Mean motion | n | 0.14346484°/day |
| Closest approach to Earth* | 2014-Dec-31 | |
| Distance of closest approach* | 1.49411902 AU 223,517,024 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.