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TimezoneEurope/London
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Transit: 12:56 
Sunset: 20:41
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Near Earth Objects » 

Asteroid (NEO) 2010 RA91

Above the horizon.  Rise: 0:47 | Tran: 5:59 | Set: 11:08
Alt: 25.35°   Az: 153.67°   Direction: South-South-East
Please note: this information pertains to a Near-Earth Object (NEO). During close approaches, our current computational model is not able to provide an accurate position, due to the high speeds of these objects. We plan to refine our algorithms to improve accuracy in the future. JPL Horizons can compute precise positions in these situations.

Asteroid (NEO) 2010 RA91 is in the constellation of Capricornus, at a distance of 140,821,574.0 kilometers from Earth. The current Right Ascension is 20h 24m 15s and the Declination is -09° 45’ 29” (apparent coordinates). The magnitude of Asteroid (NEO) 2010 RA91 is 25.97 (data provided by JPL Horizons).

Finder Charts

Map showing Asteroid (NEO) 2010 RA91 in Capricornus on May, 13 2025. Field of view: 50x30 degrees
View interactive star map
Sky map showing Asteroid (NEO) 2010 RA91 in Capricornus on May, 13 2025. Field of view: 15x9 degrees. View in interactive sky chart

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.

Celestial Coordinates

Apparent

20h 24m 15s
-09° 45’ 29”
22h 24m 00s
18h 48m 15s

J2000

20h 22m 52s
-09° 50’ 27”

Additional Information

Capricornus
25.97

Rise and Set Times

Today's rise, transit and set times of Asteroid (NEO) 2010 RA91 from Greenwich, UK (all times relative to the local timezone Europe/London):

Azimuth: 99.6°
Max altitude: 28.8°
Azimuth: 260.3°
  • 2010 RA91 is above the horizon from Greenwich, UK.
  • Right now it is placed in the South-South-East direction at an altitude of 25.35° above the horizon.
  • Given its current magnitude, 2010 RA91 is visible only through long exposure photography.
  • 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.

Distance from Earth

The distance of Asteroid (NEO) 2010 RA91 from Earth is currently 140,821,574.0 kilometers, equivalent to 0.9413340801 Astronomical Units. Light takes 7m 49.730s to travel from Asteroid (NEO) 2010 RA91 and arrive to us.

140,821,574.0
0.9413340801
7m 49.730s

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.

Chart of the distance of Asteroid (NEO) 2010 RA91 from Earth in Astronomical Units (au)

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

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 1,795,577 kilometers:

Sun Mar 22 2026
1,795,577
0.012003

Light Curve

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.

Chart of the magnitude of Asteroid (NEO) 2010 RA91 as a function of time

Orbital Elements

The following table lists the orbital elements of Asteroid (NEO) 2010 RA91 at epoch 30 March 2024 00:00 UTC (JD: 2460400.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.34894416
Orbit inclination i 5.61442398°
Perihelion distance q 0.75957225 AU
113,630,392 km
Aphelion distance Q 1.57378292 AU
235,434,574 km
Semi-major axis a 1.16667759 AU
174,532,483 km
Orbital period period 1.2602 years
460.2828 days
Date of perihelion transit Tp 2024-Oct-17 10:04:44
2,460,600.9200 JD
Next perihelion transit 2026-Jan-20 16:51
2,461,061.2027 JD
Argument of perihelion peri 272.69933674645°
Longitude of the ascending node node 183.57836813703°
Mean anomaly M 203.24595071409°
Mean motion n 0.78212792°/day

Orbit Visualization

Orbit Diagram of Asteroid (NEO) 2010 RA91
View Asteroid (NEO) 2010 RA91 in the 3D Solar System Simulator

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. Apparent celestial coordinates are provided.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2025 May 06 20h 18m 05s -10° 48’ 53” 26.12 Capricornus
2025 May 07 20h 19m 03s -10° 39’ 56” 26.10 Capricornus
2025 May 08 20h 19m 59s -10° 31’ 00” 26.08 Capricornus
2025 May 09 20h 20m 53s -10° 22’ 04” 26.06 Capricornus
2025 May 10 20h 21m 45s -10° 13’ 11” 26.04 Capricornus
2025 May 11 20h 22m 35s -10° 04’ 19” 26.01 Capricornus
2025 May 12 20h 23m 22s -09° 55’ 31” 25.99 Capricornus
2025 May 13 20h 24m 08s -09° 46’ 44” 25.97 Capricornus
2025 May 14 20h 24m 52s -09° 38’ 00” 25.94 Capricornus
2025 May 15 20h 25m 34s -09° 29’ 17” 25.92 Capricornus
2025 May 16 20h 26m 13s -09° 20’ 39” 25.89 Capricornus
2025 May 17 20h 26m 50s -09° 12’ 04” 25.87 Capricornus
2025 May 18 20h 27m 26s -09° 03’ 32” 25.84 Capricornus
2025 May 19 20h 27m 58s -08° 55’ 04” 25.82 Capricornus

Additional Resources on TheSkyLive