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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 5:06 
Transit: 12:56 
Sunset: 20:47
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Near Earth Objects » 

Asteroid (NEO) 2021 UX1

Above the horizon.  Rise: 7:45 | Tran: 15:49 | Set: 23:52
Alt: 34.73°   Az: 262.66°   Direction: West
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) 2021 UX1 is in the constellation of Gemini, at a distance of 166,314,111.0 kilometers from Earth. The current Right Ascension is 06h 32m 17s and the Declination is +22° 21’ 38” (apparent coordinates). The magnitude of Asteroid (NEO) 2021 UX1 is 31.06 (data provided by JPL Horizons).

Finder Charts

Map showing Asteroid (NEO) 2021 UX1 in Gemini on May, 17 2025. Field of view: 50x30 degrees
View interactive star map
Sky map showing Asteroid (NEO) 2021 UX1 in Gemini on May, 17 2025. Field of view: 15x9 degrees. View in interactive sky chart

Also check out Where is Asteroid (NEO) 2021 UX1?, a page that provides all the information needed to find Asteroid (NEO) 2021 UX1 in the sky and additional links to sky charts.

Celestial Coordinates

Apparent

06h 32m 17s
+22° 21’ 38”
04h 07m 13s
10h 39m 30s

J2000

06h 30m 45s
+22° 22’ 48”

Additional Information

Gemini
31.06

Rise and Set Times

Today's rise, transit and set times of Asteroid (NEO) 2021 UX1 from Greenwich, UK (all times relative to the local timezone Europe/London):

Azimuth: 67.6°
Max altitude: 60.9°
Azimuth: 292.4°
  • 2021 UX1 is above the horizon from Greenwich, UK.
  • Right now it is placed in the West direction at an altitude of 34.73° above the horizon.
  • Given its current magnitude, 2021 UX1 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) 2021 UX1 from Earth is currently 166,314,111.0 kilometers, equivalent to 1.1117411646 Astronomical Units. Light takes 9m 14.764s to travel from Asteroid (NEO) 2021 UX1 and arrive to us.

166,314,111.0
1.1117411646
9m 14.764s

The following chart shows the distance of Asteroid (NEO) 2021 UX1 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) 2021 UX1 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) 2021 UX1 to Earth happens on Sat Oct 26 2030 at a distance of 0.004615 Astronomical Units, or 690,413 kilometers:

Sat Oct 26 2030
690,413
0.004615

Light Curve

The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid (NEO) 2021 UX1, 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) 2021 UX1 as a function of time

Orbital Elements

The following table lists the orbital elements of Asteroid (NEO) 2021 UX1 at epoch 16 October 2024 00:00 UTC (JD: 2460600.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.16799878
Orbit inclination i 1.57932447°
Perihelion distance q 0.72783556 AU
108,882,650 km
Aphelion distance Q 1.02176659 AU
152,854,106 km
Semi-major axis a 0.87480107 AU
130,868,378 km
Orbital period period 0.8182 years
298.8563 days
Date of perihelion transit Tp 2024-Aug-07 01:13:49
2,460,529.5513 JD
Next perihelion transit 2025-Jun-01 21:46
2,460,828.4075 JD
Argument of perihelion peri 330.09648181982°
Longitude of the ascending node node 215.19067701089°
Mean anomaly M 85.464301491038°
Mean motion n 1.20459238°/day
2h1>Orbit Visualization
Orbit Diagram of Asteroid (NEO) 2021 UX1
View Asteroid (NEO) 2021 UX1 in the 3D Solar System Simulator

15 Days Ephemeris

The following table lists the ephemerides of Asteroid (NEO) 2021 UX1 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 10 05h 55m 06s +22° 29’ 35” 31.10 Orion
2025 May 11 05h 59m 51s +22° 30’ 17” 31.10 Orion
2025 May 12 06h 04m 36s +22° 30’ 27” 31.09 Gemini
2025 May 13 06h 09m 22s +22° 30’ 09” 31.09 Gemini
2025 May 14 06h 14m 08s +22° 29’ 20” 31.08 Gemini
2025 May 15 06h 18m 55s +22° 28’ 00” 31.08 Gemini
2025 May 16 06h 23m 42s +22° 26’ 11” 31.07 Gemini
2025 May 17 06h 28m 30s +22° 23’ 50” 31.07 Gemini
2025 May 18 06h 33m 17s +22° 21’ 00” 31.06 Gemini
2025 May 19 06h 38m 06s +22° 17’ 38” 31.06 Gemini
2025 May 20 06h 42m 54s +22° 13’ 47” 31.06 Gemini
2025 May 21 06h 47m 42s +22° 09’ 24” 31.05 Gemini
2025 May 22 06h 52m 31s +22° 04’ 32” 31.05 Gemini
2025 May 23 06h 57m 20s +21° 59’ 09” 31.05 Gemini

Additional Resources on TheSkyLive