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🌎 Location: Greenwich, United Kingdom [change]

Asteroid (NEO) 2021 AN4

Asteroid (NEO) 2021 AN4 is a Near Earth Object. If you've heard news about a potential impact of this asteroid with the Earth, please check out Will Asteroid Asteroid (NEO) 2021 AN4 Impact Earth?.

Asteroid (NEO) 2021 AN4 is currently in the constellation of . The current Right Ascension of Asteroid (NEO) 2021 AN4 is 00h 00m 00s and the Declination is +00° 00’ 00” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current magnitude of Asteroid (NEO) 2021 AN4 is (JPL).

Summary of key facts about Asteroid (NEO) 2021 AN4 [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]:

00h 00m 00s
+00° 00’ 00”

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 (NEO) 2021 AN4 available on TheSkyLive:

Available Resources

Asteroid (NEO) 2021 AN4 Position and Finder Charts

Below we provide Asteroid (NEO) 2021 AN4 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 (NEO) 2021 AN4 in on January, 21 2021
Field of view: 50x30 degrees
View fullscreen
Map showing Asteroid (NEO) 2021 AN4 in on January, 21 2021
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]

Also check out Where is Asteroid (NEO) 2021 AN4?, a page that provides all the information needed to find Asteroid (NEO) 2021 AN4 in the sky and additional links to sky charts.

Asteroid (NEO) 2021 AN4 Distance from Earth

The distance of Asteroid (NEO) 2021 AN4 from Earth is currently 0 kilometers, equivalent to 0.000000 Astronomical Units. Light takes to travel from Asteroid (NEO) 2021 AN4 and arrive to us.

0
0.000000

The following chart shows the distance of Asteroid (NEO) 2021 AN4 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 (NEO) 2021 AN4 from Earth between January 1970 and January 1970

The value of the reported distance might be somewhat inaccurate around the times of closest approach for objects passing extremely close to Earth.

Closest approach of Asteroid (NEO) 2021 AN4 to Earth

During the next 10 years, the closest approach of Asteroid (NEO) 2021 AN4 to Earth happens on Tue Jan 19 2021 at a distance of 0.030623 Astronomical Units, or 4,581,152 kilometers:

Tue Jan 19 2021
4,581,152
0.030623

Asteroid (NEO) 2021 AN4 brightness

The current visual magnitude of Asteroid (NEO) 2021 AN4 is .

The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid (NEO) 2021 AN4, 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 (NEO) 2021 AN4 between January 1970 and January 1970

Asteroid (NEO) 2021 AN4 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 (NEO) 2021 AN4 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 90.0°
Max altitude: 38.5°
Azimuth: 270.0°

The rise and set times are defined as the time at which the upper limb of Asteroid (NEO) 2021 AN4 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 (NEO) 2021 AN4 Orbital Elements

The following table lists the orbital elements of Asteroid (NEO) 2021 AN4 at epoch 09 January 2021 00:00 UTC (JD: 2459224.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.30816801
Orbit inclination i 1.05939091°
Perihelion distance q 1.01333965 AU
151,593,455 km
Aphelion distance Q 1.91609889 AU
286,644,315 km
Semi-major axis a 1.46471927 AU
219,118,885 km
Orbital period period 1.7700 years
647.4855 days
Date of perihelion transit Tp 2021-Jan-19 15:05:13
2,459,234.1286 JD
Next perihelion transit 2022-Oct-29 02:44
2,459,881.6141 JD
Argument of perihelion peri 207.86747568255°
Longitude of the ascending node node 271.55443189246°
Mean anomaly M 354.64651198023°
Mean motion n 0.55599704°/day

Visualization of Asteroid (NEO) 2021 AN4 Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Asteroid (NEO) 2021 AN4 with respect of the Sun and the orbits of the major planets. The position of Asteroid (NEO) 2021 AN4 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 (NEO) 2021 AN4
View Asteroid (NEO) 2021 AN4 in the 3D Solar System Simulator

Asteroid (NEO) 2021 AN4 15 Days Ephemeris

The following table lists the ephemerides of Asteroid (NEO) 2021 AN4 computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Asteroid (NEO) 2021 AN4 in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2021 Jan 14 - - - -
2021 Jan 15 - - - -
2021 Jan 16 - - - -
2021 Jan 17 - - - -
2021 Jan 18 - - - -
2021 Jan 19 - - - -
2021 Jan 20 - - - -
2021 Jan 21 - - - -
2021 Jan 22 - - - -
2021 Jan 23 - - - -
2021 Jan 24 - - - -
2021 Jan 25 - - - -
2021 Jan 26 - - - -
2021 Jan 27 - - - -