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🌎 Location: Greenwich, United Kingdom [change]

Asteroid (NEO) 2021 AL1

Asteroid (NEO) 2021 AL1 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 AL1 Impact Earth?.

Asteroid (NEO) 2021 AL1 is currently in the constellation of Scorpius. The current Right Ascension of Asteroid (NEO) 2021 AL1 is 16h 18m 08s and the Declination is -17° 10’ 58” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current magnitude of Asteroid (NEO) 2021 AL1 is 23.26 (JPL).

Summary of key facts about Asteroid (NEO) 2021 AL1 [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]:

16h 18m 08s
-17° 10’ 58”
Scorpius
23.26
  • 2021 AL1 is above the horizon from Greenwich, United Kingdom [change].
  • It is visible looking in the South-South-East direction at an altitude of 16° above the horizon.
  • Given its current magnitude, 2021 AL1 is visible only through long exposure photography.
  • See also 2021 AL1 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 (NEO) 2021 AL1 available on TheSkyLive:

Available Resources

Asteroid (NEO) 2021 AL1 Position and Finder Charts

Below we provide Asteroid (NEO) 2021 AL1 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 AL1 in Scorpius on January, 21 2021
Field of view: 50x30 degrees
View fullscreen
Map showing Asteroid (NEO) 2021 AL1 in Scorpius 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 AL1?, a page that provides all the information needed to find Asteroid (NEO) 2021 AL1 in the sky and additional links to sky charts.

Asteroid (NEO) 2021 AL1 Distance from Earth

The distance of Asteroid (NEO) 2021 AL1 from Earth is currently 6,550,909 kilometers, equivalent to 0.043790 Astronomical Units. Light takes 21.8515 seconds to travel from Asteroid (NEO) 2021 AL1 and arrive to us.

6,550,909
0.043790
21.8515 seconds

The following chart shows the distance of Asteroid (NEO) 2021 AL1 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 AL1 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.

Closest approach of Asteroid (NEO) 2021 AL1 to Earth

During the next 10 years, the closest approach of Asteroid (NEO) 2021 AL1 to Earth happens on Sat Jan 16 2021 at a distance of 0.024070 Astronomical Units, or 3,600,857 kilometers:

Sat Jan 16 2021
3,600,857
0.024070

Asteroid (NEO) 2021 AL1 brightness

The current visual magnitude of Asteroid (NEO) 2021 AL1 is 23.26.

23.26

The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid (NEO) 2021 AL1, 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 AL1 between January 2013 and December 2100

Asteroid (NEO) 2021 AL1 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 AL1 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 107.0°
Max altitude: 21.2°
Azimuth: 252.5°

The rise and set times are defined as the time at which the upper limb of Asteroid (NEO) 2021 AL1 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 AL1 Orbital Elements

The following table lists the orbital elements of Asteroid (NEO) 2021 AL1 at epoch 04 January 2021 00:00 UTC (JD: 2459219.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.57852409
Orbit inclination i 0.20550454°
Perihelion distance q 0.84311003 AU
126,127,465 km
Aphelion distance Q 3.15764068 AU
472,376,323 km
Semi-major axis a 2.00037535 AU
299,251,894 km
Orbital period period 2.8300 years
1,033.3934 days
Date of perihelion transit Tp 2021-Feb-23 03:22:54
2,459,268.6409 JD
Argument of perihelion peri 115.06309484874°
Longitude of the ascending node node 56.319820532977°
Mean anomaly M 342.88093539424°
Mean motion n 0.34836686°/day

Visualization of Asteroid (NEO) 2021 AL1 Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Asteroid (NEO) 2021 AL1 with respect of the Sun and the orbits of the major planets. The position of Asteroid (NEO) 2021 AL1 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 AL1
View Asteroid (NEO) 2021 AL1 in the 3D Solar System Simulator

Asteroid (NEO) 2021 AL1 15 Days Ephemeris

The following table lists the ephemerides of Asteroid (NEO) 2021 AL1 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 AL1 in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2021 Jan 14 10h 10m 41s +17° 20’ 07” 19.27 Leo
2021 Jan 15 11h 01m 22s +13° 27’ 18” 19.25 Leo
2021 Jan 16 12h 04m 10s +07° 35’ 02” 19.46 Virgo
2021 Jan 17 13h 12m 23s +00° 23’ 50” 19.98 Virgo
2021 Jan 18 14h 15m 08s -06° 16’ 40” 20.77 Virgo
2021 Jan 19 15h 05m 45s -11° 14’ 30” 21.68 Libra
2021 Jan 20 15h 44m 00s -14° 33’ 14” 22.55 Libra
2021 Jan 21 16h 12m 30s -16° 43’ 01” 23.00 Scorpius
2021 Jan 22 16h 34m 00s -18° 09’ 33” 24.00 Ophiucus
2021 Jan 23 16h 50m 35s -19° 09’ 11” 24.00 Ophiucus
2021 Jan 24 17h 03m 38s -19° 51’ 47” 25.00 Ophiucus
2021 Jan 25 17h 14m 12s -20° 23’ 12” 25.00 Ophiucus
2021 Jan 26 17h 22m 54s -20° 47’ 03” 26.00 Ophiucus
2021 Jan 27 17h 30m 14s -21° 05’ 39” 26.00 Ophiucus