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TimezoneEurope/London
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Sunset: 21:19
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Dwarf Planets and Asteroids » 

Asteroid 2010 RF12

Below the horizon.  Rise: 11:13 | Tran: 17:54 | Set: 0:34
Alt: -7.56°   Az: 293.76°   Direction: West-North-West

Asteroid 2010 RF12 is in the constellation of Leo, at a distance of 156,111,428.0 kilometers from Earth. The current Right Ascension is 10h 48m 47s and the Declination is +08° 22’ 49” (apparent coordinates). The magnitude of Asteroid 2010 RF12 is 30.87.

Finder Charts

Map showing Asteroid 2010 RF12 in Leo on June, 20 2025. Field of view: 50x30 degrees
View interactive star map
Sky map showing Asteroid 2010 RF12 in Leo on June, 20 2025. Field of view: 15x9 degrees. View in interactive sky chart

High precision deep sky finder chart, 60 arcmin wide, showing where Asteroid 2010 RF12 is right now. Click on the image to see a more detailed fullscreen tracker view.

2010 RF12
RA: 10h 47m 27s
Dec: +08° 30’ 55”
Deep sky finder chart for Asteroid 2010 RF12. Field of view: 60x40 arcmins. View in deep sky object tracker

Also check out Where is Asteroid 2010 RF12?, a page that provides all the information needed to find Asteroid 2010 RF12 in the sky and additional links to sky charts.

Celestial Coordinates

Apparent

10h 48m 47s
+08° 22’ 49”
07h 33m 58s
18h 22m 46s

J2000

10h 47m 27s
+08° 30’ 55”

Additional Information

Leo
30.87

Rise and Set Times

Today's rise, transit and set times of Asteroid 2010 RF12 from Greenwich, UK (all times relative to the local timezone Europe/London):

Azimuth: 81.7°
Max altitude: 46.7°
Azimuth: 278.1°
  • 2010 RF12 is below the horizon from Greenwich, UK.
  • Given its current magnitude, 2010 RF12 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 2010 RF12 from Earth is currently 156,111,428.0 kilometers, equivalent to 1.0435404412 Astronomical Units. Light takes 8m 40.732s to travel from Asteroid 2010 RF12 and arrive to us.

156,111,428.0
1.0435404412
8m 40.732s

The following chart shows the distance of Asteroid 2010 RF12 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 2010 RF12 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. The value of the distance of 2010 RF12 from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest Approach

Between 1 January 2000 and 31 December 2099, the closest approach of Asteroid 2010 RF12 to Earth happens on Tue Sep 6 2095 at a distance of 0.000348 Astronomical Units, or 52,033 kilometers:

Tue Sep 6 2095
52,033
0.000348

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

Light Curve

The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid 2010 RF12, 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 2010 RF12 as a function of time

Orbital Elements

The following table lists the orbital elements of Asteroid 2010 RF12 at epoch 16 October 2024 00:00 UTC (JD: 2460600.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.18826110
Orbit inclination i 0.88243742°
Perihelion distance q 0.86158071 AU
128,890,640 km
Aphelion distance Q 1.26122185 AU
188,676,104 km
Semi-major axis a 1.06140128 AU
158,783,372 km
Orbital period period 1.0935 years
399.4090 days
Date of perihelion transit Tp 2025-Jan-29 18:41:18
2,460,705.2787 JD
Next perihelion transit 2026-Mar-05 04:30
2,461,104.6877 JD
Argument of perihelion peri 267.43356096205°
Longitude of the ascending node node 163.69009457166°
Mean anomaly M 265.55964612°
Mean motion n 0.90133174°/day
2h1>Orbit Visualization
Orbit Diagram of Asteroid 2010 RF12
View Asteroid 2010 RF12 in the 3D Solar System Simulator

15 Days Ephemeris

The following table lists the ephemerides of Asteroid 2010 RF12 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 Jun 13 10h 25m 50s +10° 36’ 17” 30.79 Leo
2025 Jun 14 10h 29m 10s +10° 17’ 24” 30.80 Leo
2025 Jun 15 10h 32m 28s +09° 58’ 27” 30.81 Leo
2025 Jun 16 10h 35m 46s +09° 39’ 29” 30.82 Leo
2025 Jun 17 10h 39m 01s +09° 20’ 27” 30.83 Leo
2025 Jun 18 10h 42m 16s +09° 01’ 25” 30.84 Leo
2025 Jun 19 10h 45m 30s +08° 42’ 19” 30.85 Leo
2025 Jun 20 10h 48m 43s +08° 23’ 12” 30.87 Leo
2025 Jun 21 10h 51m 55s +08° 04’ 04” 30.88 Leo
2025 Jun 22 10h 55m 05s +07° 44’ 55” 30.89 Leo
2025 Jun 23 10h 58m 15s +07° 25’ 44” 30.90 Leo
2025 Jun 24 11h 01m 24s +07° 06’ 33” 30.91 Leo
2025 Jun 25 11h 04m 31s +06° 47’ 22” 30.92 Leo
2025 Jun 26 11h 07m 38s +06° 28’ 09” 30.93 Leo

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