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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 65803 Didymos (1996 GT)

Below the horizon.  Rise: 8:53 | Tran: 15:52 | Set: 22:50
Alt: -24.00°   Az: 23.53°   Direction: North-North-East

Asteroid 65803 Didymos (1996 GT) is in the constellation of Leo, at a distance of 398,458,846.0 kilometers from Earth. The current Right Ascension is 10h 33m 59s and the Declination is +11° 44’ 25” (apparent coordinates). The magnitude of asteroid 65803 Didymos (1996 GT) is 22.72.

Finder Charts

The sky charts below show, at different resolutions, the position of asteroid 65803 Didymos (1996 GT) in the sky. Click on each chart to access the interactive star map tool.

Star map showing the position of asteroid 65803 Didymos (1996 GT) in the constellation of Leo on F, d Y. Field of view: 50x30 degrees. View interactive star map.
Star map showing the position of asteroid 65803 Didymos (1996 GT) in the constellation of Leo 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 65803 Didymos (1996 GT) 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.

65803 Didymos (1996 GT)
RA: 10h 32m 38s
Dec: +11° 52’ 21”
Simplified high-resolution deep sky chart showing the current position of asteroid 65803 Didymos (1996 GT). Field of view: 60 x 40 arcminutes. Go to the dedicated page

Equatorial Coordinates

Apparent

10h 33m 59s
+11° 44’ 25”
13h 27m 29s
00h 01m 29s

J2000

10h 32m 38s
+11° 52’ 21”

Additional Information

Leo
22.72

Rise and Set Times

The following table lists today's rise, transit and set times of asteroid 65803 Didymos (1996 GT) from Greenwich, UK (all times relative to the local timezone Europe/London):

Azimuth: 78.3°
Max altitude: 50.2°
Azimuth: 281.6°

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 65803 Didymos (1996 GT) from Earth is currently 398,458,846.0 kilometers, equivalent to 2.6635328707 Astronomical Units. Light takes 22m 9.116s to travel from asteroid 65803 Didymos (1996 GT) and arrive to us.

398,458,846.0
2.6635328707
22m 9.116s

The following graph shows the distance of asteroid 65803 Didymos (1996 GT) 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 65803 Didymos (1996 GT) 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 65803 Didymos (1996 GT) 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 65803 Didymos (1996 GT) to Earth happened on Thursday 13 November 2003 at a distance of 0.048020 Astronomical Units, or 7,183,708 kilometers:

Thursday 13 November 2003
7,183,708
0.048020

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 65803 Didymos (1996 GT), 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 65803 Didymos (1996 GT) as a function of time

Orbital Elements

The following table lists the orbital elements of asteroid 65803 Didymos (1996 GT) at epoch October, 16 2024 00:00 UTC (JD: 2460600.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.38325117
Orbit inclination i 3.41417645°
Perihelion distance q 1.01307147 AU
151,553,335 km
Aphelion distance Q 2.27212804 AU
339,905,518 km
Semi-major axis a 1.64259976 AU
245,729,426 km
Orbital period period 2.1053 years
768.9464 days
Date of perihelion transit Tp November 28, 2024
2,460,643.3688 JD
Next perihelion transit January 6, 2027
2,461,412.3152 JD
Argument of perihelion peri 319.60265906644°
Longitude of the ascending node node 72.98597638391°
Mean anomaly M 339.92996528796°
Mean motion n 0.46817308°/day

Orbit Visualization

The following chart is a 3D animated visualization of the orbit of asteroid 65803 Didymos (1996 GT) 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 65803 Didymos (1996 GT) 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 10h 20m 11s +13° 08’ 03” 22.68 Leo
Jul 11 2025 10h 22m 06s +12° 56’ 29” 22.68 Leo
Jul 12 2025 10h 24m 02s +12° 44’ 52” 22.69 Leo
Jul 13 2025 10h 25m 58s +12° 33’ 15” 22.70 Leo
Jul 14 2025 10h 27m 54s +12° 21’ 36” 22.70 Leo
Jul 15 2025 10h 29m 49s +12° 09’ 56” 22.71 Leo
Jul 16 2025 10h 31m 44s +11° 58’ 15” 22.72 Leo
Jul 17 2025 10h 33m 39s +11° 46’ 32” 22.72 Leo
Jul 18 2025 10h 35m 33s +11° 34’ 48” 22.73 Leo
Jul 19 2025 10h 37m 27s +11° 23’ 03” 22.73 Leo
Jul 20 2025 10h 39m 20s +11° 11’ 17” 22.74 Leo
Jul 21 2025 10h 41m 14s +10° 59’ 29” 22.74 Leo
Jul 22 2025 10h 43m 07s +10° 47’ 41” 22.75 Leo
Jul 23 2025 10h 45m 00s +10° 35’ 51” 22.75 Leo

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