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public LocationGreenwich, UK
Sunrise: 5:14 
Transit: 13:06 
Sunset: 20:58
sunny   (Daytime)   What's Visible Now?
Comets » 

Comet P/2010 H2 (Vales)

Above the horizon.  Rise: 6:23 | Tran: 14:41 | Set: 22:59
Alt: 56.31°   Az: 132.78°   Direction: South-East

Comet P/2010 H2 (Vales) is in the constellation of Leo, at a distance of 619,519,613.0 kilometers from Earth. The current Right Ascension is 09h 52m 31s and the Declination is +24° 36’ 17” (apparent coordinates). The predicted magnitude of Comet P/2010 H2 (Vales) is 15.17 (data provided by JPL Horizons).

Finder chart of P/2010 H2 (Vales) in Leo on July,24 2024
Map showing Comet P/2010 H2 (Vales) in Leo on July, 24 2024. Field of view: 50x30 degrees
View interactive star map

Celestial Coordinates


09h 52m 31s
+24° 36’ 17”
22h 13m 35s
08h 06m 06s


09h 51m 08s
+24° 43’ 14”

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 P/2010 H2 (Vales) from Greenwich, UK (all times relative to the local timezone Europe/London):

Azimuth: 65.4°
Max altitude: 63.1°
Azimuth: 294.5°
  • P/2010 H2 (Vales) is above the horizon from Greenwich, UK.
  • Right now it is placed in the South-East direction at an altitude of 56.31° above the horizon.
  • Given its current magnitude, P/2010 H2 (Vales) is visible with the help of a telescope having an aperture of 20 inches (500mm) or more.
  • 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.

Finder Charts

Finder chart of P/2010 H2 (Vales)
Sky map showing Comet P/2010 H2 (Vales) in Leo on July, 24 2024. Field of view: 10x6 degrees. View in interactive sky chart

High precision deep sky finder chart, 60 arcmin wide, showing where Comet P/2010 H2 (Vales) is right now. Click on the image to see a more detailed fullscreen tracker view.

P/2010 H2 (Vales)
RA: 09h 51m 08s
Dec: +24° 43’ 14”
Deep sky finder chart for Comet P/2010 H2 (Vales). Field of view: 60x40 arcmins. View in deep sky object tracker

Also check out Where is Comet P/2010 H2 (Vales)?, a page that provides all the information needed to find Comet P/2010 H2 (Vales) in the sky and additional links to sky charts.

Distance from Earth

The distance of Comet P/2010 H2 (Vales) from Earth is currently 619,519,613.0 kilometers, equivalent to 4.1412328271 Astronomical Units. Light takes 34m 26.495s to travel from Comet P/2010 H2 (Vales) and arrive to us.

34m 26.495s

The following chart shows the distance of Comet P/2010 H2 (Vales) 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 P/2010 H2 (Vales) 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 P/2010 H2 (Vales) from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest Approach

Between 1 January 2013 and 30 December 2100, the closest approach of Comet P/2010 H2 (Vales) to Earth happens on Thu Apr 10 2025 at a distance of 2.100351 Astronomical Units, or 314,208,065 kilometers:

Thu Apr 10 2025

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 P/2010 H2 (Vales), 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 P/2010 H2 (Vales) as a function of time

Orbital Elements

The following table lists the orbital elements of Comet P/2010 H2 (Vales) at epoch 07 May 2010 00:00 UTC (JD: 2455324.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.19290772
Orbit inclination i 14.25291236°
Perihelion distance q 3.10773440 AU
464,910,449 km
Aphelion distance Q 4.59332894 AU
687,152,230 km
Semi-major axis a 3.85053167 AU
576,031,340 km
Orbital period period 7.5560 years
2,759.8119 days
Date of perihelion transit Tp 2010-Mar-09 08:27:45
2,455,264.8526 JD
Next perihelion transit 2017-Sep-28 03:56
2,458,024.6645 JD
Argument of perihelion peri 130.12333494918°
Longitude of the ascending node node 64.30889926668°
Mean anomaly M 7.7806247972151°
Mean motion n 0.13044367°/day

Orbit Visualization

Orbit Diagram of Comet P/2010 H2 (Vales)
View Comet P/2010 H2 (Vales) in the 3D Solar System Simulator

15 Days Ephemeris

The following table lists the ephemerides of Comet P/2010 H2 (Vales) 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
2024 Jul 17 09h 41m 32s +25° 34’ 54” 15.17 Leo
2024 Jul 18 09h 43m 00s +25° 27’ 10” 15.17 Leo
2024 Jul 19 09h 44m 28s +25° 19’ 26” 15.17 Leo
2024 Jul 20 09h 45m 56s +25° 11’ 39” 15.17 Leo
2024 Jul 21 09h 47m 24s +25° 03’ 50” 15.17 Leo
2024 Jul 22 09h 48m 51s +24° 55’ 59” 15.17 Leo
2024 Jul 23 09h 50m 19s +24° 48’ 07” 15.17 Leo
2024 Jul 24 09h 51m 47s +24° 40’ 13” 15.17 Leo
2024 Jul 25 09h 53m 16s +24° 32’ 16” 15.17 Leo
2024 Jul 26 09h 54m 44s +24° 24’ 19” 15.17 Leo
2024 Jul 27 09h 56m 13s +24° 16’ 19” 15.17 Leo
2024 Jul 28 09h 57m 41s +24° 08’ 17” 15.17 Leo
2024 Jul 29 09h 59m 09s +24° 00’ 15” 15.17 Leo
2024 Jul 30 10h 00m 38s +23° 52’ 10” 15.17 Leo

Additional Resources