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🌎 Location: Greenwich, United Kingdom [change]

Asteroid (NEO) 2020 OL4

Asteroid (NEO) 2020 OL4 is currently in the constellation of Perseus. The current Right Ascension of Asteroid (NEO) 2020 OL4 is 04h 14m 03s and the Declination is +35° 10’ 06” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current magnitude of Asteroid (NEO) 2020 OL4 is 21.40 (JPL).

Summary of key facts about Asteroid (NEO) 2020 OL4 [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]:

04h 14m 03s
+35° 10’ 06”
  • 2020 OL4 is above the horizon from Greenwich, United Kingdom [change].
  • It is visible looking in the East-South-East direction at an altitude of 62° above the horizon.
  • Given its current magnitude, 2020 OL4 is visible only through long exposure photography.
  • See also 2020 OL4 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) 2020 OL4 available on TheSkyLive:

Available Resources

Asteroid (NEO) 2020 OL4 Position and Finder Charts

Below we provide Asteroid (NEO) 2020 OL4 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) 2020 OL4 in Perseus on August, 12 2020
Field of view: 50x30 degrees
View fullscreen
Map showing Asteroid (NEO) 2020 OL4 in Perseus on August, 12 2020
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) 2020 OL4?, a page that provides all the information needed to find Asteroid (NEO) 2020 OL4 in the sky and additional links to sky charts.

Asteroid (NEO) 2020 OL4 Distance from Earth

The distance of Asteroid (NEO) 2020 OL4 from Earth is currently 4,830,100 kilometers, equivalent to 0.032287 Astronomical Units. Light takes 16.1115 seconds to travel from Asteroid (NEO) 2020 OL4 and arrive to us.

16.1115 seconds

The following chart shows the distance of Asteroid (NEO) 2020 OL4 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) 2020 OL4 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) 2020 OL4 to Earth

Between January 2013 and December 2100 the closest approach of Asteroid (NEO) 2020 OL4 to Earth happens on Sun Aug 9 2020 at a distance of 0.02444359 Astronomical Units, or 3,656,708 kilometers:

Sun Aug 9 2020

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

Asteroid (NEO) 2020 OL4 brightness

The current visual magnitude of Asteroid (NEO) 2020 OL4 is 21.40.


The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid (NEO) 2020 OL4, 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) 2020 OL4 between January 2013 and December 2100

Asteroid (NEO) 2020 OL4 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) 2020 OL4 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 53.1°
Max altitude: 74.0°
Azimuth: 306.7°

The rise and set times are defined as the time at which the upper limb of Asteroid (NEO) 2020 OL4 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) 2020 OL4 Orbital Elements

The following table lists the orbital elements of Asteroid (NEO) 2020 OL4 at epoch 23 July 2020 00:00 UTC (JD: 2459054.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.43172548
Orbit inclination i 5.53599679°
Perihelion distance q 0.88823245 AU
132,877,683 km
Aphelion distance Q 2.23783574 AU
334,775,462 km
Semi-major axis a 1.56303409 AU
233,826,573 km
Orbital period period 1.9500 years
713.7582 days
Date of perihelion transit Tp 2020-Sep-21 06:00:59
2,459,113.7507 JD
Argument of perihelion peri 56.407946320058°
Longitude of the ascending node node 316.82067810635°
Mean anomaly M 330.11558136475°
Mean motion n 0.50437250°/day

Visualization of Asteroid (NEO) 2020 OL4 Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Asteroid (NEO) 2020 OL4 with respect of the Sun and the orbits of the major planets. The position of Asteroid (NEO) 2020 OL4 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) 2020 OL4
View Asteroid (NEO) 2020 OL4 in the 3D Solar System Simulator

Asteroid (NEO) 2020 OL4 15 Days Ephemeris

The following table lists the ephemerides of Asteroid (NEO) 2020 OL4 computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Asteroid (NEO) 2020 OL4 in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2020 Aug 05 23h 19m 37s -14° 19’ 08” 19.03 Aquarius
2020 Aug 06 23h 47m 03s -08° 56’ 02” 18.93 Aquarius
2020 Aug 07 00h 20m 41s -01° 55’ 37” 18.93 Pisces
2020 Aug 08 01h 01m 03s +06° 35’ 00” 19.09 Pisces
2020 Aug 09 01h 47m 09s +15° 42’ 41” 19.43 Aries
2020 Aug 10 02h 36m 10s +23° 59’ 26” 19.96 Aries
2020 Aug 11 03h 23m 53s +30° 19’ 59” 20.60 Aries
2020 Aug 12 04h 06m 46s +34° 35’ 22” 21.27 Perseus
2020 Aug 13 04h 43m 08s +37° 12’ 42” 21.91 Perseus
2020 Aug 14 05h 13m 00s +38° 44’ 31” 22.48 Auriga
2020 Aug 15 05h 37m 14s +39° 35’ 45” 22.97 Auriga
2020 Aug 16 05h 56m 57s +40° 02’ 30” 23.00 Auriga
2020 Aug 17 06h 13m 05s +40° 14’ 36” 24.00 Auriga
2020 Aug 18 06h 26m 30s +40° 17’ 53” 24.00 Auriga