Your guide to the Solar System and the night sky
Please donate now to help keep TheSkyLive ads-free. This site cannot run without your voluntary donations.
🌎  Greenwich, United Kingdom [change]

Asteroid (NEO) 2010 RA91

Asteroid (NEO) 2010 RA91 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) 2010 RA91 Impact Earth?.

Asteroid (NEO) 2010 RA91 is currently in the constellation of Sagittarius. The current Right Ascension of Asteroid (NEO) 2010 RA91 is 19h 51m 58s and the Declination is -18° 27’ 51” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current magnitude of Asteroid (NEO) 2010 RA91 is 26.79 (JPL).

Summary of key facts about Asteroid (NEO) 2010 RA91 [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]:

19h 51m 58s
-18° 27’ 51”

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) 2010 RA91 available on TheSkyLive:

Available Resources

Asteroid (NEO) 2010 RA91 Position and Finder Charts

Below we provide Asteroid (NEO) 2010 RA91 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) 2010 RA91 in Sagittarius on December, 08 2021
Field of view: 50x30 degrees
View fullscreen
Map showing Asteroid (NEO) 2010 RA91 in Sagittarius on December, 08 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) 2010 RA91?, a page that provides all the information needed to find Asteroid (NEO) 2010 RA91 in the sky and additional links to sky charts.

Asteroid (NEO) 2010 RA91 Distance from Earth

The distance of Asteroid (NEO) 2010 RA91 from Earth is currently 289,219,653 kilometers, equivalent to 1.933314 Astronomical Units. Light takes 16 minutes and 4.7329 seconds to travel from Asteroid (NEO) 2010 RA91 and arrive to us.

16 minutes and 4.7329 seconds

The following chart shows the distance of Asteroid (NEO) 2010 RA91 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) 2010 RA91 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) 2010 RA91 to Earth

During the next 10 years, the closest approach of Asteroid (NEO) 2010 RA91 to Earth happens on Sun Mar 22 2026 at a distance of 0.012003 Astronomical Units, or 1,795,585 kilometers:

Sun Mar 22 2026

Asteroid (NEO) 2010 RA91 brightness

The current visual magnitude of Asteroid (NEO) 2010 RA91 is 26.79.


The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid (NEO) 2010 RA91, 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) 2010 RA91 between January 2013 and December 2100

Asteroid (NEO) 2010 RA91 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) 2010 RA91 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 108.5°
Max altitude: 20.0°
Azimuth: 251.5°

The rise and set times are defined as the time at which the upper limb of Asteroid (NEO) 2010 RA91 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) 2010 RA91 Orbital Elements

The following table lists the orbital elements of Asteroid (NEO) 2010 RA91 at epoch 16 December 2020 00:00 UTC (JD: 2459200.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.34907021
Orbit inclination i 5.61386133°
Perihelion distance q 0.75951616 AU
113,622,001 km
Aphelion distance Q 1.57411849 AU
235,484,775 km
Semi-major axis a 1.16681732 AU
174,553,388 km
Orbital period period 1.2600 years
460.3655 days
Date of perihelion transit Tp 2021-Jan-05 14:40:44
2,459,220.1116 JD
Next perihelion transit 2022-Apr-10 23:26
2,459,680.4771 JD
Argument of perihelion peri 272.71426643826°
Longitude of the ascending node node 183.60224791354°
Mean anomaly M 344.66395130424°
Mean motion n 0.78198743°/day

Visualization of Asteroid (NEO) 2010 RA91 Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Asteroid (NEO) 2010 RA91 with respect of the Sun and the orbits of the major planets. The position of Asteroid (NEO) 2010 RA91 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) 2010 RA91
View Asteroid (NEO) 2010 RA91 in the 3D Solar System Simulator

Asteroid (NEO) 2010 RA91 15 Days Ephemeris

The following table lists the ephemerides of Asteroid (NEO) 2010 RA91 computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Asteroid (NEO) 2010 RA91 in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2021 Dec 01 19h 29m 44s -19° 03’ 42” 26.86 Sagittarius
2021 Dec 02 19h 32m 30s -18° 59’ 52” 26.85 Sagittarius
2021 Dec 03 19h 35m 17s -18° 55’ 49” 26.84 Sagittarius
2021 Dec 04 19h 38m 06s -18° 51’ 33” 26.83 Sagittarius
2021 Dec 05 19h 40m 54s -18° 47’ 07” 26.82 Sagittarius
2021 Dec 06 19h 43m 44s -18° 42’ 29” 26.81 Sagittarius
2021 Dec 07 19h 46m 32s -18° 37’ 37” 26.80 Sagittarius
2021 Dec 08 19h 49m 23s -18° 32’ 35” 26.80 Sagittarius
2021 Dec 09 19h 52m 14s -18° 27’ 20” 26.79 Sagittarius
2021 Dec 10 19h 55m 05s -18° 21’ 52” 26.78 Sagittarius
2021 Dec 11 19h 57m 56s -18° 16’ 14” 26.77 Sagittarius
2021 Dec 12 20h 00m 47s -18° 10’ 22” 26.76 Sagittarius
2021 Dec 13 20h 03m 41s -18° 04’ 18” 26.75 Sagittarius
2021 Dec 14 20h 06m 33s -17° 58’ 01” 26.74 Sagittarius