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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 4:53 
Transit: 13:05 
Sunset: 21:15
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Dwarf Planets and Asteroids » 

Asteroid 10 Hygiea

Above the horizon.  Rise: 2:34 | Tran: 10:51 | Set: 19:08
Alt: 25.96°   Az: 277.32°   Direction: West

Asteroid 10 Hygiea is in the constellation of Taurus, at a distance of 645,564,513.0 kilometers from Earth. The current Right Ascension is 04h 53m 51s and the Declination is +24° 26’ 49” (apparent coordinates). The magnitude of asteroid 10 Hygiea is 12.08.

Finder Charts

The sky charts below show, at different resolutions, the position of asteroid 10 Hygiea in the sky. Click on each chart to access the interactive star map tool.

Star map showing the position of asteroid 10 Hygiea in the constellation of Taurus on F, d Y. Field of view: 50x30 degrees. View interactive star map.
Star map showing the position of asteroid 10 Hygiea in the constellation of Taurus on F, d Y. Field of view: 15x9 degrees. View in interactive star map.

The following map uses photographic imagery from the Digitized Sky Survey (DSS) to realistically visualize the precise position of asteroid 10 Hygiea against the stars in the background. The horizontal size of the map measures 60 arcminutes. Click on the image to access a more detailed full-screen view.

10 Hygiea
RA: 04h 52m 18s
Dec: +24° 24’ 22”
Simplified high-resolution deep sky chart showing the current position of asteroid 10 Hygiea. Field of view: 60 x 40 arcminutes. Go to the dedicated page

Equatorial Coordinates

Apparent

04h 53m 51s
+24° 26’ 49”
05h 13m 36s
10h 07m 27s

J2000

04h 52m 18s
+24° 24’ 22”

Additional Information

Taurus
12.08

Rise and Set Times

The following table lists today's rise, transit and set times of asteroid 10 Hygiea from Greenwich, UK (all times relative to the local timezone Europe/London):

Azimuth: 65.6°
Max altitude: 63.0°
Azimuth: 294.5°

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 asteroid 10 Hygiea from Earth is currently 645,564,513.0 kilometers, equivalent to 4.3153322302 Astronomical Units. Light takes 35m 53.371s to travel from asteroid 10 Hygiea and arrive to us.

645,564,513.0
4.3153322302
35m 53.371s

The following graph shows the distance of asteroid 10 Hygiea from Earth as a function of time. In the chart the distance is measured in Astronomical Units and the data is sampled with an interval of 1 day.

Chart of the distance of asteroid 10 Hygiea from Earth in Astronomical Units (au)
Note: The values in this chart may not be entirely accurate around the time of closest approach for objects passing very close to Earth at high speed (e.g., Near-Earth Objects).

The value of the distance of 10 Hygiea from Earth is also available as a real time updated value in the live position tracker.

Closest Approach to Earth

In the period between January 1, 1900 and December 31, 2099, the closest approach of asteroid 10 Hygiea to Earth will happen on Friday 20 May 2078 at a distance of 1.747301 Astronomical Units, or 261,392,555 kilometers:

Friday 20 May 2078
261,392,555
1.747301

Note: the values for the closest approach are computed with a sampling interval of 1 day.

Light Curve

The following chart shows the light curve of asteroid 10 Hygiea, i.e., its apparent magnitude as a function of time. The curve is calculated using the latest ephemerides provided by JPL Horizons. The magnitude data is sampled with the interval of 2 days. Because of this sampling, inaccuracies may occur for objects that have large variations of brightness over a few days. For comets, large discrepancies can arise between the calculated brightness and the observations due to their highly dynamic, and not always precisely predictable, behavior.

Chart of the magnitude of asteroid 10 Hygiea as a function of time

Orbital Elements

The following table lists the orbital elements of asteroid 10 Hygiea at epoch February, 24 2023 00:00 UTC (JD: 2460000.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.11115904
Orbit inclination i 3.83172841°
Perihelion distance q 2.79112158 AU
417,545,845 km
Aphelion distance Q 3.48924060 AU
521,982,965 km
Semi-major axis a 3.14018109 AU
469,764,405 km
Orbital period period 5.5647 years
2,032.4996 days
Date of perihelion transit Tp July 15, 2022
2,459,776.1601 JD
Next perihelion transit February 7, 2028
2,461,808.6597 JD
Argument of perihelion peri 312.4866514797°
Longitude of the ascending node node 283.17317744373°
Mean anomaly M 39.735493038824°
Mean motion n 0.17712181°/day

Orbit Visualization

The following chart is a 3D animated visualization of the orbit of asteroid 10 Hygiea relative to the other major objects in the Solar System. You can access more advanced features using our 3D Solar System Viewer.

Physical Properties

The table below lists the known key physical properties of asteroid 10 Hygiea. The source for this data is the JPL Small-Body Database.

Physical Parameter Value Relative to Earth
Diameter 407.12 km 0.0320
Sideral Rotation 27.6230 hours 1.1541
Absolute Magnitude 5.43
Geometric Albedo 0.0717

15 Days Ephemeris

The following table lists the ephemerides of asteroid 10 Hygiea 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
Jun 30 2025 04h 43m 31s +24° 10’ 57” 12.05 Taurus
Jul 01 2025 04h 44m 53s +24° 13’ 10” 12.05 Taurus
Jul 02 2025 04h 46m 14s +24° 15’ 22” 12.05 Taurus
Jul 03 2025 04h 47m 36s +24° 17’ 30” 12.06 Taurus
Jul 04 2025 04h 48m 58s +24° 19’ 36” 12.06 Taurus
Jul 05 2025 04h 50m 19s +24° 21’ 39” 12.07 Taurus
Jul 06 2025 04h 51m 40s +24° 23’ 39” 12.07 Taurus
Jul 07 2025 04h 53m 01s +24° 25’ 36” 12.07 Taurus
Jul 08 2025 04h 54m 21s +24° 27’ 31” 12.08 Taurus
Jul 09 2025 04h 55m 42s +24° 29’ 23” 12.08 Taurus
Jul 10 2025 04h 57m 02s +24° 31’ 14” 12.08 Taurus
Jul 11 2025 04h 58m 22s +24° 33’ 00” 12.08 Taurus
Jul 12 2025 04h 59m 42s +24° 34’ 45” 12.09 Taurus
Jul 13 2025 05h 01m 01s +24° 36’ 26” 12.09 Taurus

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