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🌎  Greenwich, United Kingdom [change]

Asteroid (NEO) 2021 VR4

Asteroid (NEO) 2021 VR4 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 VR4 Impact Earth?.

Asteroid (NEO) 2021 VR4 is currently in the constellation of Libra. The current Right Ascension of Asteroid (NEO) 2021 VR4 is 14h 34m 08s and the Declination is -10° 42’ 09” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current magnitude of Asteroid (NEO) 2021 VR4 is 27.00 (JPL).

Summary of key facts about Asteroid (NEO) 2021 VR4 [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]:

14h 34m 08s
-10° 42’ 09”
Libra
27.00
  • 2021 VR4 is above the horizon from Greenwich, United Kingdom [change].
  • It is visible looking in the South-West direction at an altitude of 17° above the horizon.
  • Given its current magnitude, 2021 VR4 is visible only through long exposure photography.
  • See also 2021 VR4 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 VR4 available on TheSkyLive:

Available Resources

Asteroid (NEO) 2021 VR4 Position and Finder Charts

Below we provide Asteroid (NEO) 2021 VR4 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 VR4 in Libra on November, 30 2021
Field of view: 50x30 degrees
View fullscreen
Map showing Asteroid (NEO) 2021 VR4 in Libra on November, 30 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 VR4?, a page that provides all the information needed to find Asteroid (NEO) 2021 VR4 in the sky and additional links to sky charts.

Asteroid (NEO) 2021 VR4 Distance from Earth

The distance of Asteroid (NEO) 2021 VR4 from Earth is currently 3,771,576 kilometers, equivalent to 0.025211 Astronomical Units. Light takes 12.5806 seconds to travel from Asteroid (NEO) 2021 VR4 and arrive to us.

3,771,576
0.025211
12.5806 seconds

The following chart shows the distance of Asteroid (NEO) 2021 VR4 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 VR4 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 VR4 to Earth

During the next 10 years, the closest approach of Asteroid (NEO) 2021 VR4 to Earth happens on Thu Nov 25 2021 at a distance of 0.005499 Astronomical Units, or 822,605 kilometers:

Thu Nov 25 2021
822,605
0.005499

Asteroid (NEO) 2021 VR4 brightness

The current visual magnitude of Asteroid (NEO) 2021 VR4 is 27.00.

27.00

The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid (NEO) 2021 VR4, 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 VR4 between January 2013 and December 2100

Asteroid (NEO) 2021 VR4 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 VR4 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 100.4°
Max altitude: 28.0°
Azimuth: 259.3°

The rise and set times are defined as the time at which the upper limb of Asteroid (NEO) 2021 VR4 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 VR4 Orbital Elements

The following table lists the orbital elements of Asteroid (NEO) 2021 VR4 at epoch 07 November 2021 00:00 UTC (JD: 2459526.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.40402972
Orbit inclination i 0.55725861°
Perihelion distance q 0.91630581 AU
137,077,398 km
Aphelion distance Q 2.15869925 AU
322,936,812 km
Semi-major axis a 1.53750253 AU
230,007,105 km
Orbital period period 254,338.6782 years
696.3414 days
Date of perihelion transit Tp 2021-Dec-27 02:21:01
2,459,575.5979 JD
Argument of perihelion peri 201.45572522611°
Longitude of the ascending node node 261.63824565372°
Mean anomaly M 334.61696485649°
Mean motion n 0.51698782°/day

Visualization of Asteroid (NEO) 2021 VR4 Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Asteroid (NEO) 2021 VR4 with respect of the Sun and the orbits of the major planets. The position of Asteroid (NEO) 2021 VR4 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 VR4
View Asteroid (NEO) 2021 VR4 in the 3D Solar System Simulator

Asteroid (NEO) 2021 VR4 15 Days Ephemeris

The following table lists the ephemerides of Asteroid (NEO) 2021 VR4 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 VR4 in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2021 Nov 23 23h 38m 56s +19° 20’ 45” 18.78 Pegasus
2021 Nov 24 22h 18m 38s +19° 59’ 44” 18.53 Pegasus
2021 Nov 25 19h 37m 06s +14° 32’ 44” 19.78 Aquila
2021 Nov 26 17h 02m 26s +02° 24’ 14” 25.00 Ophiucus
2021 Nov 27 15h 47m 45s -04° 22’ 53” 28.00 Libra
2021 Nov 28 15h 11m 44s -07° 31’ 05” 28.00 Libra
2021 Nov 29 14h 51m 34s -09° 11’ 53” 27.00 Libra
2021 Nov 30 14h 38m 54s -10° 13’ 32” 27.00 Libra
2021 Dec 01 14h 30m 19s -10° 55’ 03” 27.00 Libra
2021 Dec 02 14h 24m 10s -11° 25’ 00” 27.00 Libra
2021 Dec 03 14h 19m 36s -11° 47’ 49” 27.00 Virgo
2021 Dec 04 14h 16m 05s -12° 05’ 57” 27.00 Virgo
2021 Dec 05 14h 13m 23s -12° 20’ 53” 27.00 Virgo
2021 Dec 06 14h 11m 15s -12° 33’ 30” 27.00 Virgo