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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:46  
clear_day Transit: 12:11  
SunsetSet: 17:36
wb_twilight Civil TwilightWhat's Visible Now?
Dwarf Planets and Asteroids » 

Asteroid 29 Amphitrite

Altitude: 42.7°   Azimuth: 234.9°   Direction: 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 Aries, at a distance of 429,247,039 kilometers from Earth.

Finder chart of 29 Amphitrite in Aries on February,29 2024
Map showing Asteroid 29 Amphitrite in Aries on February, 29 2024. Field of view: 50x30 degrees
View interactive star map
The current Right Ascension of Asteroid 29 Amphitrite is 01h 48m 59s and the Declination is +15° 32’ 30” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom edit_location_alt). The current magnitude of Asteroid 29 Amphitrite is 11.04 (JPL).

01h 48m 59s
+15° 32’ 30”

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: 74.5°
Max altitude: 54.0°
Azimuth: 285.6°
  • 29 Amphitrite is above the horizon from Greenwich, United Kingdom edit_location_alt.
  • Right now it is placed in the South-West direction at an altitude of 43° 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.

Additional Resources

Asteroid 29 Amphitrite Position and Finder Charts

Finder chart of 29 Amphitrite
Map showing Asteroid 29 Amphitrite in Aries on February, 29 2024
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: 01h 48m 59s
Dec: +15° 32’ 30”
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 429,247,039 kilometers, equivalent to 2.869339 Astronomical Units. Light takes 23 minutes and 51.8140 seconds to travel from Asteroid 29 Amphitrite and arrive to us.

23 minutes and 51.8140 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
2024 Feb 22 01h 36m 12s +14° 20’ 49” 11.01 Pisces
2024 Feb 23 01h 37m 50s +14° 30’ 05” 11.01 Pisces
2024 Feb 24 01h 39m 28s +14° 39’ 20” 11.02 Pisces
2024 Feb 25 01h 41m 07s +14° 48’ 37” 11.02 Pisces
2024 Feb 26 01h 42m 46s +14° 57’ 52” 11.02 Pisces
2024 Feb 27 01h 44m 25s +15° 07’ 09” 11.03 Pisces
2024 Feb 28 01h 46m 05s +15° 16’ 24” 11.03 Pisces
2024 Feb 29 01h 47m 45s +15° 25’ 41” 11.03 Aries
2024 Mar 01 01h 49m 26s +15° 34’ 56” 11.04 Aries
2024 Mar 02 01h 51m 07s +15° 44’ 12” 11.04 Aries
2024 Mar 03 01h 52m 49s +15° 53’ 27” 11.04 Aries
2024 Mar 04 01h 54m 32s +16° 02’ 42” 11.04 Aries
2024 Mar 05 01h 56m 13s +16° 11’ 56” 11.04 Aries
2024 Mar 06 01h 57m 56s +16° 21’ 10” 11.05 Aries