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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 4:44 
Transit: 13:01 
Sunset: 21:19
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Comet 496P/Hill

Above the horizon.  Rise: 8:12 | Tran: 16:42 | Set: 1:15
Alt: 17.69°   Az: 70.02°   Direction: East-North-East

Comet 496P/Hill is in the constellation of Leo, at a distance of 372,590,534.0 kilometers from Earth. The current Right Ascension is 09h 42m 32s and the Declination is +26° 07’ 57” (apparent coordinates). The latest observed magnitude of Comet 496P/Hill is 15.7 (data provided by COBS).

Finder Charts

Map showing Comet 496P/Hill in Leo on June, 21 2025. Field of view: 50x30 degrees
View interactive star map
Sky map showing Comet 496P/Hill in Leo on June, 21 2025. Field of view: 15x9 degrees. View in interactive sky chart

High precision deep sky finder chart, 60 arcmin wide, showing where Comet 496P/Hill is right now. Click on the image to see a more detailed fullscreen tracker view.

496P/Hill
RA: 09h 41m 05s
Dec: +26° 14’ 58”
Deep sky finder chart for Comet 496P/Hill. Field of view: 60x40 arcmins. View in deep sky object tracker

Also check out Where is Comet 496P/Hill?, a page that provides all the information needed to find Comet 496P/Hill in the sky and additional links to sky charts.

Celestial Coordinates

Apparent

09h 42m 32s
+26° 07’ 57”
17h 43m 16s
03h 25m 49s

J2000

09h 41m 05s
+26° 14’ 58”

Additional Information

Leo
15.7
2.6'
1.2'
2025-06-17
19.38

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 496P/Hill from Greenwich, UK (all times relative to the local timezone Europe/London):

Azimuth: 63.8°
Max altitude: 64.6°
Azimuth: 296.2°
  • 496P/Hill is above the horizon from Greenwich, UK.
  • Right now it is placed in the East-North-East direction at an altitude of 17.69° above the horizon.
  • Given its current magnitude, 496P/Hill is visible only through long exposure photography.
  • Go to interactive sky chart

If you need to access this information frequently for your observations, you can create a simple customized Quick Access page, so that you can easily bookmark it in your browser favorites or add a shortcut to your mobile phones' home screen.

Distance from Earth

The distance of Comet 496P/Hill from Earth is currently 372,590,534.0 kilometers, equivalent to 2.4906138855 Astronomical Units. Light takes 20m 42.828s to travel from Comet 496P/Hill and arrive to us.

372,590,534.0
2.4906138855
20m 42.828s

The following chart shows the distance of Comet 496P/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.

Chart of the distance of Comet 496P/Hill from Earth in Astronomical Units (au)

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 496P/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 496P/Hill to Earth happens on Thu Dec 6 2068 at a distance of 0.927059 Astronomical Units, or 138,686,054 kilometers:

Thu Dec 6 2068
138,686,054
0.927059

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 496P/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.

Chart of the magnitude of Comet 496P/Hill as a function of time

Orbital Elements

The following table lists the orbital elements of Comet 496P/Hill at epoch 15 November 2020 00:00 UTC (JD: 2459169.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.73321793
Orbit inclination i 14.86604322°
Perihelion distance q 1.62060311 AU
242,438,775 km
Aphelion distance Q 10.52866229 AU
1,575,065,463 km
Semi-major axis a 6.07463270 AU
908,752,119 km
Orbital period period 14.9723 years
5,468.6290 days
Date of perihelion transit Tp 2025-Mar-12 16:33:03
2,460,747.1896 JD
Next perihelion transit 2040-Mar-02 07:38
2,466,215.8186 JD
Argument of perihelion peri 41.934457354985°
Longitude of the ascending node node 64.094446808482°
Mean anomaly M 256.14064855333°
Mean motion n 0.06583003°/day
2h1>Orbit Visualization

15 Days Ephemeris

The following table lists the ephemerides of Comet 496P/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 Jun 14 09h 23m 20s +27° 52’ 38” 19.09 Cancer
2025 Jun 15 09h 25m 59s +27° 38’ 45” 19.13 Leo
2025 Jun 16 09h 28m 38s +27° 24’ 45” 19.16 Leo
2025 Jun 17 09h 31m 15s +27° 10’ 40” 19.20 Leo
2025 Jun 18 09h 33m 50s +26° 56’ 32” 19.24 Leo
2025 Jun 19 09h 36m 25s +26° 42’ 17” 19.28 Leo
2025 Jun 20 09h 39m 00s +26° 28’ 00” 19.32 Leo
2025 Jun 21 09h 41m 33s +26° 13’ 38” 19.36 Leo
2025 Jun 22 09h 44m 04s +25° 59’ 12” 19.40 Leo
2025 Jun 23 09h 46m 35s +25° 44’ 41” 19.44 Leo
2025 Jun 24 09h 49m 05s +25° 30’ 08” 19.48 Leo
2025 Jun 25 09h 51m 34s +25° 15’ 32” 19.52 Leo
2025 Jun 26 09h 54m 02s +25° 00’ 53” 19.56 Leo
2025 Jun 27 09h 56m 29s +24° 46’ 11” 19.60 Leo

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