Comet 310P/Hill
Comet 310P/Hill is in the constellation of
Leo,
at a distance of
Finder Charts
View interactive star map
High precision deep sky finder chart, 60 arcmin wide, showing where Comet 310P/Hill is right now. Click on the image to see a more detailed fullscreen tracker view.
Also check out Where is Comet 310P/Hill?, a page that provides all the information needed to find Comet 310P/Hill in the sky and additional links to sky charts.
Celestial Coordinates
Apparent
J2000
Additional Information
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.
Rise and Set Times
Today's rise, transit and set times of Comet 310P/Hill from Greenwich, UK (all times relative to the local timezone Europe/London):
- 310P/Hill is above the horizon from Greenwich, UK.
- Right now it is placed in the West-South-West direction at an altitude of 34.97° above the horizon.
- Given its current magnitude, 310P/Hill is visible only through long exposure photography.
- Go to interactive sky chart
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Distance from Earth
The distance of Comet 310P/Hill from Earth is currently
The following chart shows the distance of Comet 310P/Hill 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 310P/Hill from Earth is also available as a real time updated value in the Live Position and Data Tracker.
Closest Approach
Between 1 January 2000 and 31 December 2099, the closest approach of Comet 310P/Hill to Earth happens on Thu Oct 22 2065 at a distance of 1.280591 Astronomical Units, or 191,573,654 kilometers:
NOTE: values for the closest approach are computed with a sampling interval of 1 day.
Light Curve
The following chart is the predicted light curve (visual magnitude as a function of time) of Comet 310P/Hill, 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.
Orbital Elements
The following table lists the orbital elements of Comet 310P/Hill at epoch 11 May 2009 00:00 UTC (JD: 2454963.5). Source: JPL Small-Body Database
| Element | Symbol | Value |
|---|---|---|
| Orbit eccentricity | e | 0.42511062 |
| Orbit inclination | i | 13.18546593° |
| Perihelion distance | q | 2.39441496 AU 358,199,381 km |
| Aphelion distance | Q |
5.93558741 AU 887,951,239 km |
| Semi-major axis | a |
4.16500119 AU 623,075,310 km |
| Orbital period | period |
8.5002 years 3,104.7106 days |
| Date of perihelion transit | Tp | 2006-Oct-18 10:48:39 2,454,026.9505 JD |
| Next perihelion transit | 2015-Apr-19 03:51 2,457,131.6610 JD |
|
| Argument of perihelion | peri | 31.170214383807° |
| Longitude of the ascending node | node | 9.0395608141657° |
| Mean anomaly | M | 108.59557718994° |
| Mean motion | n | 0.11595284°/day |
View Comet 310P/Hill in the 3D Solar System Simulator
15 Days Ephemeris
The following table lists the ephemerides of Comet 310P/Hill computed for the past and next 7 days, with a 24 hours interval. Apparent celestial coordinates are provided.
| Date | Right AscensionR.A. | DeclinationDec. | MagnitudeMag | Constellation |
|---|---|---|---|---|
| 2025 May 17 | 09h 49m 19s | +20° 53’ 45” | 24.20 | Leo |
| 2025 May 18 | 09h 49m 46s | +20° 48’ 32” | 24.22 | Leo |
| 2025 May 19 | 09h 50m 12s | +20° 43’ 18” | 24.23 | Leo |
| 2025 May 20 | 09h 50m 41s | +20° 38’ 00” | 24.25 | Leo |
| 2025 May 21 | 09h 51m 10s | +20° 32’ 41” | 24.26 | Leo |
| 2025 May 22 | 09h 51m 39s | +20° 27’ 20” | 24.28 | Leo |
| 2025 May 23 | 09h 52m 09s | +20° 21’ 57” | 24.29 | Leo |
| 2025 May 24 | 09h 52m 40s | +20° 16’ 32” | 24.31 | Leo |
| 2025 May 25 | 09h 53m 11s | +20° 11’ 05” | 24.32 | Leo |
| 2025 May 26 | 09h 53m 43s | +20° 05’ 36” | 24.34 | Leo |
| 2025 May 27 | 09h 54m 16s | +20° 00’ 05” | 24.35 | Leo |
| 2025 May 28 | 09h 54m 49s | +19° 54’ 32” | 24.37 | Leo |
| 2025 May 29 | 09h 55m 23s | +19° 48’ 58” | 24.38 | Leo |
| 2025 May 30 | 09h 55m 57s | +19° 43’ 22” | 24.40 | Leo |
Additional Resources on TheSkyLive
- Comet 310P/Hill: Complete reference information on TheSkyLive.com.
- Where is Comet 310P/Hill?: Key information on locating Comet 310P/Hill in the sky.
- Distance from Earth: Find out how far Comet 310P/Hill is from Earth right now.
- How Bright is Comet 310P/Hill?: Current visual brightness (magnitude) and apparent size.
- Rise and Set Times: Comet 310P/Hill's rise and set times from your location.
- Interactive Sky Map: planetarium-style interactive visualization of Comet 310P/Hill's position in the sky.
- Live Position Tracker: high precision position tracker with deep space imagery.
- Ephemeris: 15 days Comet 310P/Hill's computed ephemeris.
- Orbital elements: information about Comet 310P/Hill orbital parameters.
- Orbit Visualization. 3d interactive visualization showing the orbit of Comet 310P/Hill with respect to the major Solar System objects.