Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:44  
clear_day Transit: 12:57  
SunsetSet: 21:11 south
sunny DaytimeWhat's Visible Now
Dwarf Planets and Asteroids » 

Asteroid 29 Amphitrite

Altitude: 17.8°   Azimuth: 244.5°   Direction: West-South-West

Asteroid 29 Amphitrite was discovered on March 1, 1854, by Albert Marth, a German astronomer. It is named after the sea-goddess Amphitrite in Greek mythology. With a diameter of approximately 208 km, Amphitrite is one of the largest main-belt asteroids. It has a relatively high albedo, which indicates that its surface is composed of bright and reflective materials. Amphitrite has an orbital period of 4.02 years.

Asteroid 29 Amphitrite is currently in the constellation of Pisces. The current Right Ascension of Asteroid 29 Amphitrite is 00h 09m 24s and the Declination is -00° 56’ 44” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom edit_location_alt). The current magnitude of Asteroid 29 Amphitrite is 11.05 (JPL).

00h 09m 24s
-00° 56’ 44”

Today's rise, transit and set times of Asteroid 29 Amphitrite from Greenwich, United Kingdom edit_location_alt (all times relative to the local timezone Europe/London):

Azimuth: 91.0°
Max altitude: 37.6°
Azimuth: 269.1°
  • 29 Amphitrite is above the horizon from Greenwich, United Kingdom edit_location_alt.
  • Right now it is placed in the West-South-West direction at an altitude of 18° above the horizon.
  • Given its current magnitude, 29 Amphitrite is visible with the help of a binocular with a 70-80mm aperture or a small telescope.
  • 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.

Available Resources

Asteroid 29 Amphitrite Position and Finder Charts

Below we provide Asteroid 29 Amphitrite finder charts showing where the object is right now in the sky with respect to the brightest stars. The first finder chart has a field of view of 50 degrees, while the second one has a field of view of 10 degrees. Click on each finder chart to access a full screen interactive Online Planetarium.

Finder chart of 29 Amphitrite in Pisces on June,08 2023
Map showing Asteroid 29 Amphitrite in Pisces on June, 08 2023
Field of view: 50x30 degrees
View fullscreen
Finder chart of 29 Amphitrite
Map showing Asteroid 29 Amphitrite in Pisces on June, 08 2023
Field of view: 10x6 degrees
View fullscreen

Higher precision deep sky finder chart, 60 arcmin wide, showing where Asteroid 29 Amphitrite is right now. Click on the image to see a more detailed fullscreen tracker view.

29 Amphitrite
RA: 00h 09m 24s
Dec: -00° 56’ 44”
Deep sky finder chart for Asteroid 29 Amphitrite
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Asteroid 29 Amphitrite?, a page that provides all the information needed to find Asteroid 29 Amphitrite in the sky and additional links to sky charts.

Asteroid 29 Amphitrite Distance from Earth

The distance of Asteroid 29 Amphitrite from Earth is currently 384,038,894 kilometers, equivalent to 2.567141 Astronomical Units. Light takes 21 minutes and 21.0159 seconds to travel from Asteroid 29 Amphitrite and arrive to us.

21 minutes and 21.0159 seconds

The following chart shows the distance of Asteroid 29 Amphitrite 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 Asteroid 29 Amphitrite 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 29 Amphitrite from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest Approach of Asteroid 29 Amphitrite to Earth

Between 1 January 1900 and 31 December 2099, the closest approach of Asteroid 29 Amphitrite to Earth happens on Sun Nov 16 1958 at a distance of 1.380642 Astronomical Units, or 206,541,142 kilometers:

Sun Nov 16 1958

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

Asteroid 29 Amphitrite Brightness and Light Curve

The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid 29 Amphitrite, 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 Asteroid 29 Amphitrite as a function of time

Asteroid 29 Amphitrite Orbital Elements

The following table lists the orbital elements of Asteroid 29 Amphitrite at epoch 24 February 2023 00:00 UTC (JD: 2460000.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.07368241
Orbit inclination i 6.08278404°
Perihelion distance q 2.36558692 AU
353,886,766 km
Aphelion distance Q 2.74192037 AU
410,185,450 km
Semi-major axis a 2.55375364 AU
382,036,108 km
Orbital period period 4.0811 years
1,490.6199 days
Date of perihelion transit Tp 2024-Apr-03 09:23:23
2,460,403.8912 JD
Argument of perihelion peri 63.01536066885°
Longitude of the ascending node node 356.32872362373°
Mean anomaly M 262.57687709748°
Mean motion n 0.24151025°/day

Visualization of Asteroid 29 Amphitrite Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Asteroid 29 Amphitrite with respect of the Sun and the orbits of the major planets. The position of Asteroid 29 Amphitrite 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!

Orbit Diagram of Asteroid 29 Amphitrite
View Asteroid 29 Amphitrite in the 3D Solar System Simulator

Asteroid 29 Amphitrite 15 Days Ephemeris

The following table lists the ephemerides of Asteroid 29 Amphitrite computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Asteroid 29 Amphitrite in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2023 Jun 01 00h 00m 21s -02° 03’ 07” 11.11 Pisces
2023 Jun 02 00h 01m 36s -01° 54’ 05” 11.10 Pisces
2023 Jun 03 00h 02m 49s -01° 45’ 03” 11.09 Pisces
2023 Jun 04 00h 04m 04s -01° 36’ 06” 11.08 Pisces
2023 Jun 05 00h 05m 17s -01° 27’ 10” 11.07 Pisces
2023 Jun 06 00h 06m 29s -01° 18’ 17” 11.06 Pisces
2023 Jun 07 00h 07m 41s -01° 09’ 28” 11.06 Pisces
2023 Jun 08 00h 08m 52s -01° 00’ 42” 11.05 Pisces
2023 Jun 09 00h 10m 03s -00° 51’ 57” 11.04 Pisces
2023 Jun 10 00h 11m 12s -00° 43’ 18” 11.03 Pisces
2023 Jun 11 00h 12m 23s -00° 34’ 41” 11.02 Pisces
2023 Jun 12 00h 13m 32s -00° 26’ 07” 11.01 Pisces
2023 Jun 13 00h 14m 39s -00° 17’ 35” 11.00 Pisces
2023 Jun 14 00h 15m 47s -00° 09’ 09” 10.99 Pisces