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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 5:04 
Transit: 13:06 
Sunset: 21:07
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Dwarf Planets and Asteroids » 

Asteroid 101955 Bennu (1999 RQ36)

Below the horizon.  Rise: 12:34 | Tran: 17:45 | Set: 22:57
Alt: -44.61°   Az: 331.93°   Direction: North-North-West

Asteroid 101955 Bennu (1999 RQ36) is in the constellation of Virgo, at a distance of 176,986,554.0 kilometers from Earth. The current Right Ascension is 12h 27m 38s and the Declination is -09° 06’ 12” (apparent coordinates). The magnitude of asteroid 101955 Bennu (1999 RQ36) is 23.45.

Finder Charts

The sky charts below show, at different resolutions, the position of asteroid 101955 Bennu (1999 RQ36) in the sky. Click on each chart to access the interactive star map tool.

Star map showing the position of asteroid 101955 Bennu (1999 RQ36) in the constellation of Virgo on F, d Y. Field of view: 50x30 degrees. View interactive star map.
Star map showing the position of asteroid 101955 Bennu (1999 RQ36) in the constellation of Virgo on F, d Y. Field of view: 15x9 degrees. View in interactive star map.

The following map uses photographic imagery from the Digitized Sky Survey (DSS) to realistically visualize the precise position of asteroid 101955 Bennu (1999 RQ36) against the stars in the background. The horizontal size of the map measures 60 arcminutes. Click on the image to access a more detailed full-screen view.

101955 Bennu (1999 RQ36)
RA: 12h 26m 19s
Dec: -08° 57’ 44”
Simplified high-resolution deep sky chart showing the current position of asteroid 101955 Bennu (1999 RQ36). Field of view: 60 x 40 arcminutes. Go to the dedicated page

Equatorial Coordinates

Apparent

12h 27m 38s
-09° 06’ 12”
10h 40m 40s
23h 08m 18s

J2000

12h 26m 19s
-08° 57’ 44”

Additional Information

Virgo
23.45

Rise and Set Times

The following table lists today's rise, transit and set times of asteroid 101955 Bennu (1999 RQ36) from Greenwich, UK (all times relative to the local timezone Europe/London):

Azimuth: 99.2°
Max altitude: 29.3°
Azimuth: 260.7°

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 101955 Bennu (1999 RQ36) from Earth is currently 176,986,554.0 kilometers, equivalent to 1.1830820397 Astronomical Units. Light takes 9m 50.364s to travel from asteroid 101955 Bennu (1999 RQ36) and arrive to us.

176,986,554.0
1.1830820397
9m 50.364s

The following graph shows the distance of asteroid 101955 Bennu (1999 RQ36) from Earth as a function of time. In the chart the distance is measured in Astronomical Units and the data is sampled with an interval of 1 day.

Chart of the distance of asteroid 101955 Bennu (1999 RQ36) from Earth in Astronomical Units (au)
Note: The values in this chart may not be entirely accurate around the time of closest approach for objects passing very close to Earth at high speed (e.g., Near-Earth Objects).

The value of the distance of 101955 Bennu (1999 RQ36) from Earth is also available as a real time updated value in the live position tracker.

Closest Approach to Earth

In the period between January 1, 2000 and December 31, 2099, the closest approach of asteroid 101955 Bennu (1999 RQ36) to Earth will happen on Thursday 23 September 2060 at a distance of 0.005008 Astronomical Units, or 749,209 kilometers:

Thursday 23 September 2060
749,209
0.005008

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

Light Curve

The following chart shows the light curve of asteroid 101955 Bennu (1999 RQ36), i.e., its apparent magnitude as a function of time. The curve is calculated using the latest ephemerides provided by JPL Horizons. The magnitude data is sampled with the interval of 2 days. Because of this sampling, inaccuracies may occur for objects that have large variations of brightness over a few days. For comets, large discrepancies can arise between the calculated brightness and the observations due to their highly dynamic, and not always precisely predictable, behavior.

Chart of the magnitude of asteroid 101955 Bennu (1999 RQ36) as a function of time

Orbital Elements

The following table lists the orbital elements of asteroid 101955 Bennu (1999 RQ36) at epoch December, 31 2010 00:00 UTC (JD: 2455562.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.20374508
Orbit inclination i 6.03494377°
Perihelion distance q 0.89689440 AU
134,173,493 km
Aphelion distance Q 1.35588765 AU
202,837,906 km
Semi-major axis a 1.12639103 AU
168,505,699 km
Orbital period period 1.1955 years
436.6487 days
Date of perihelion transit Tp August 30, 2010
2,455,439.1419 JD
Next perihelion transit November 10, 2011
2,455,875.7907 JD
Argument of perihelion peri 66.223060840843°
Longitude of the ascending node node 2.0608661956964°
Mean anomaly M 101.70395200246°
Mean motion n 0.82446135°/day

Orbit Visualization

The following chart is a 3D animated visualization of the orbit of asteroid 101955 Bennu (1999 RQ36) relative to the other major objects in the Solar System. You can access more advanced features using our 3D Solar System Viewer.

15 Days Ephemeris

The following table lists the ephemerides of asteroid 101955 Bennu (1999 RQ36) 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
Jul 10 2025 12h 09m 55s -07° 07’ 09” 23.37 Virgo
Jul 11 2025 12h 12m 24s -07° 24’ 02” 23.38 Virgo
Jul 12 2025 12h 14m 52s -07° 40’ 50” 23.39 Virgo
Jul 13 2025 12h 17m 21s -07° 57’ 34” 23.40 Virgo
Jul 14 2025 12h 19m 50s -08° 14’ 14” 23.42 Virgo
Jul 15 2025 12h 22m 18s -08° 30’ 50” 23.43 Virgo
Jul 16 2025 12h 24m 47s -08° 47’ 23” 23.44 Virgo
Jul 17 2025 12h 27m 17s -09° 03’ 50” 23.45 Virgo
Jul 18 2025 12h 29m 46s -09° 20’ 14” 23.46 Virgo
Jul 19 2025 12h 32m 15s -09° 36’ 33” 23.47 Virgo
Jul 20 2025 12h 34m 44s -09° 52’ 50” 23.48 Virgo
Jul 21 2025 12h 37m 14s -10° 09’ 01” 23.49 Virgo
Jul 22 2025 12h 39m 43s -10° 25’ 09” 23.50 Virgo
Jul 23 2025 12h 42m 13s -10° 41’ 12” 23.51 Virgo

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