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Near Earth Objects » 

Asteroid (NEO) 2020 UC4

Below the horizon.  Rise: 7:02 | Tran: 11:18 | Set: 15:35
Alt: -57.35°   Az: 3.05°   Direction: North
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) 2020 UC4 is in the constellation of Capricornus, at a distance of 312,721,980.0 kilometers from Earth. The current Right Ascension is 20h 31m 48s and the Declination is -18° 51’ 34” (apparent coordinates). The magnitude of Asteroid (NEO) 2020 UC4 is 28.73 (data provided by JPL Horizons).

Finder Charts

Map showing Asteroid (NEO) 2020 UC4 in Capricornus on February, 07 2025. Field of view: 50x30 degrees
View interactive star map
Sky map showing Asteroid (NEO) 2020 UC4 in Capricornus on February, 07 2025. Field of view: 15x9 degrees. View in interactive sky chart

Also check out Where is Asteroid (NEO) 2020 UC4?, a page that provides all the information needed to find Asteroid (NEO) 2020 UC4 in the sky and additional links to sky charts.

Celestial Coordinates

Apparent

20h 31m 48s
-18° 51’ 34”
12h 06m 56s
08h 38m 45s

J2000

20h 30m 22s
-18° 56’ 42”

Additional Information

Capricornus
28.73

Rise and Set Times

Today's rise, transit and set times of Asteroid (NEO) 2020 UC4 from Greenwich, UK (all times relative to the local timezone Europe/London):

Azimuth: 109.0°
Max altitude: 19.6°
Azimuth: 251.1°

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) 2020 UC4 from Earth is currently 312,721,980.0 kilometers, equivalent to 2.0904173204 Astronomical Units. Light takes 17m 23.128s to travel from Asteroid (NEO) 2020 UC4 and arrive to us.

312,721,980.0
2.0904173204
17m 23.128s

The following chart shows the distance of Asteroid (NEO) 2020 UC4 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) 2020 UC4 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) 2020 UC4 to Earth happens on Fri Jun 17 2033 at a distance of 0.005991 Astronomical Units, or 896,178 kilometers:

Fri Jun 17 2033
896,178
0.005991

Light Curve

The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid (NEO) 2020 UC4, 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) 2020 UC4 as a function of time

Orbital Elements

The following table lists the orbital elements of Asteroid (NEO) 2020 UC4 at epoch 30 March 2024 00:00 UTC (JD: 2460400.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.29806230
Orbit inclination i 0.60569878°
Perihelion distance q 0.67342438 AU
100,742,853 km
Aphelion distance Q 1.24533388 AU
186,299,297 km
Semi-major axis a 0.95937913 AU
143,521,075 km
Orbital period period 0.9397 years
343.2289 days
Date of perihelion transit Tp 2023-Nov-06 23:31:43
2,460,255.4804 JD
Next perihelion transit 2024-Oct-15 05:01
2,460,598.7092 JD
Argument of perihelion peri 217.08133230932°
Longitude of the ascending node node 291.25416090712°
Mean anomaly M 152.10570085434°
Mean motion n 1.04886278°/day

Orbit Visualization

Orbit Diagram of Asteroid (NEO) 2020 UC4
View Asteroid (NEO) 2020 UC4 in the 3D Solar System Simulator

15 Days Ephemeris

The following table lists the ephemerides of Asteroid (NEO) 2020 UC4 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 Jan 31 20h 04m 26s -20° 23’ 00” 28.62 Sagittarius
2025 Feb 01 20h 07m 56s -20° 12’ 17” 28.63 Sagittarius
2025 Feb 02 20h 11m 24s -20° 01’ 20” 28.65 Capricornus
2025 Feb 03 20h 14m 52s -19° 50’ 11” 28.66 Capricornus
2025 Feb 04 20h 18m 19s -19° 38’ 48” 28.67 Capricornus
2025 Feb 05 20h 21m 43s -19° 27’ 13” 28.69 Capricornus
2025 Feb 06 20h 25m 07s -19° 15’ 26” 28.70 Capricornus
2025 Feb 07 20h 28m 31s -19° 03’ 27” 28.71 Capricornus
2025 Feb 08 20h 31m 53s -18° 51’ 16” 28.73 Capricornus
2025 Feb 09 20h 35m 14s -18° 38’ 54” 28.74 Capricornus
2025 Feb 10 20h 38m 33s -18° 26’ 20” 28.75 Capricornus
2025 Feb 11 20h 41m 52s -18° 13’ 35” 28.76 Capricornus
2025 Feb 12 20h 45m 10s -18° 00’ 39” 28.78 Capricornus
2025 Feb 13 20h 48m 27s -17° 47’ 34” 28.79 Capricornus

Additional Resources