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🌎  Observing from: Greenwich, United Kingdom [change]

Asteroid 433 Eros

Asteroid 433 Eros is currently in the constellation of Sagittarius. The current Right Ascension of Asteroid 433 Eros is 18h 14m 42s and the Declination is -30° 08’ 46” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current magnitude of Asteroid 433 Eros is 13.74 (JPL).

Summary of key facts about Asteroid 433 Eros [tip: you can also create a Quick Access page for this data if you access it frequently and would like to have a simpler view]:

18h 14m 42s
-30° 08’ 46”
  • 433 Eros is above the horizon from Greenwich, United Kingdom [change].
  • It is visible looking in the South direction at an altitude of 8° above the horizon.
  • Given its current magnitude, 433 Eros is visible with the help of a telescope havng an aperture of 8 inches (200mm) or more.
  • See also 433 Eros rise and set times.
  • 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 information about Asteroid 433 Eros available on TheSkyLive:

Available Resources

Asteroid 433 Eros Position and Finder Charts

Below we provide Asteroid 433 Eros 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.

Map showing Asteroid 433 Eros in Sagittarius on February, 06 2023
Field of view: 50x30 degrees
View fullscreen
Map showing Asteroid 433 Eros in Sagittarius on February, 06 2023
Field of view: 10x6 degrees
View fullscreen
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Higher precision deep sky finder chart, 60 arcmin wide, showing where Asteroid 433 Eros is right now. Click on the image to see a more detailed fullscreen tracker view.

433 Eros
RA: 18h 14m 42s
Dec: -30° 08’ 46”
Deep sky finder chart for Asteroid 433 Eros
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Asteroid 433 Eros?, a page that provides all the information needed to find Asteroid 433 Eros in the sky and additional links to sky charts.

Asteroid 433 Eros Distance from Earth

The distance of Asteroid 433 Eros from Earth is currently 318,738,709 kilometers, equivalent to 2.130637 Astronomical Units. Light takes 17 minutes and 43.1979 seconds to travel from Asteroid 433 Eros and arrive to us.

17 minutes and 43.1979 seconds

The following chart shows the distance of Asteroid 433 Eros 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.

Distance of Asteroid 433 Eros from Earth between January 2013 and December 2100

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 433 Eros from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Asteroid 433 Eros to Earth

Between January 2013 and December 2100, the closest approach of Asteroid 433 Eros to Earth happens on Mon Jan 24 2056 at a distance of 0.149800 Astronomical Units, or 22,409,694 kilometers:

Mon Jan 24 2056

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

Asteroid 433 Eros brightness

The current visual magnitude of Asteroid 433 Eros is 13.74.


The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid 433 Eros, 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.

Predicted magnitude of Asteroid 433 Eros between January 2013 and December 2100

Asteroid 433 Eros rise and set times

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's Asteroid 433 Eros rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 120.1°
Max altitude: 8.4°
Azimuth: 239.9°

The rise and set times are defined as the time at which the upper limb of Asteroid 433 Eros touches the horizon, considering the effect of the atmospheric refraction. As the atmospheric conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.

Asteroid 433 Eros Orbital Elements

The following table lists the orbital elements of Asteroid 433 Eros at epoch 20 January 2022 00:00 UTC (JD: 2459600.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.22272733
Orbit inclination i 10.82846064°
Perihelion distance q 1.13347582 AU
169,565,570 km
Aphelion distance Q 1.78307038 AU
266,743,533 km
Semi-major axis a 1.45827310 AU
218,154,551 km
Orbital period period 1.7610 years
643.2158 days
Date of perihelion transit Tp 2022-Aug-11 01:40:13
2,459,802.5696 JD
Next perihelion transit 2024-May-15 06:51
2,460,445.7854 JD
Argument of perihelion peri 178.89716199025°
Longitude of the ascending node node 304.29635348211°
Mean anomaly M 246.90412362204°
Mean motion n 0.55968772°/day

Visualization of Asteroid 433 Eros Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Asteroid 433 Eros with respect of the Sun and the orbits of the major planets. The position of Asteroid 433 Eros 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 433 Eros
View Asteroid 433 Eros in the 3D Solar System Simulator

Asteroid 433 Eros Physical Data

The following shows the known values of the most important physical parameters of Asteroid 433 Eros. Source: JPL Small-Body Database

Physical Parameter Value Relative to Earth
Diameter 16.84 km 0.0013
Sideral Rotation 5.2700 hours 0.2202
Absolute Magnitude 11.16
Geometric Albedo 0.25

Asteroid 433 Eros 15 Days Ephemeris

The following table lists the ephemerides of Asteroid 433 Eros computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Asteroid 433 Eros in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2023 Jan 30 17h 53m 26s -30° 15’ 06” 13.71 Scorpius
2023 Jan 31 17h 56m 21s -30° 14’ 53” 13.72 Scorpius
2023 Feb 01 17h 59m 17s -30° 14’ 27” 13.72 Sagittarius
2023 Feb 02 18h 02m 11s -30° 13’ 50” 13.72 Sagittarius
2023 Feb 03 18h 05m 03s -30° 13’ 00” 13.73 Sagittarius
2023 Feb 04 18h 07m 55s -30° 11’ 57” 13.73 Sagittarius
2023 Feb 05 18h 10m 47s -30° 10’ 44” 13.73 Sagittarius
2023 Feb 06 18h 13m 40s -30° 09’ 16” 13.74 Sagittarius
2023 Feb 07 18h 16m 31s -30° 07’ 37” 13.74 Sagittarius
2023 Feb 08 18h 19m 21s -30° 05’ 48” 13.74 Sagittarius
2023 Feb 09 18h 22m 09s -30° 03’ 46” 13.75 Sagittarius
2023 Feb 10 18h 24m 59s -30° 01’ 32” 13.75 Sagittarius
2023 Feb 11 18h 27m 47s -29° 59’ 07” 13.75 Sagittarius
2023 Feb 12 18h 30m 33s -29° 56’ 30” 13.75 Sagittarius