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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 4:44 
Transit: 13:00 
Sunset: 21:16
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Near Earth Objects » 

Asteroid (NEO) 2021 UX1

Above the horizon.  Rise: 8:35 | Tran: 16:11 | Set: 23:47
Alt: 0.44°   Az: 60.60°   Direction: East-North-East
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 Cancer, at a distance of 131,090,549.0 kilometers from Earth. The current Right Ascension is 08h 39m 14s and the Declination is +18° 09’ 56” (apparent coordinates). The magnitude of Asteroid (NEO) 2021 UX1 is 31.02.

Finder Charts

Map showing Asteroid (NEO) 2021 UX1 in Cancer on June, 13 2025. Field of view: 50x30 degrees
View interactive star map
Sky map showing Asteroid (NEO) 2021 UX1 in Cancer on June, 13 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

08h 39m 14s
+18° 09’ 56”
16h 25m 54s
01h 05m 08s

J2000

08h 37m 47s
+18° 15’ 22”

Additional Information

Cancer
31.02

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: 71.8°
Max altitude: 56.6°
Azimuth: 288.0°
  • 2021 UX1 is above the horizon from Greenwich, UK.
  • Right now it is placed in the East-North-East direction at an altitude of 0.44° 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 131,090,549.0 kilometers, equivalent to 0.8762861957 Astronomical Units. Light takes 7m 17.271s to travel from Asteroid (NEO) 2021 UX1 and arrive to us.

131,090,549.0
0.8762861957
7m 17.271s

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 Jun 06 08h 04m 32s +19° 52’ 05” 31.02 Cancer
2025 Jun 07 08h 09m 17s +19° 39’ 30” 31.02 Cancer
2025 Jun 08 08h 14m 03s +19° 26’ 28” 31.02 Cancer
2025 Jun 09 08h 18m 48s +19° 12’ 59” 31.02 Cancer
2025 Jun 10 08h 23m 33s +18° 59’ 04” 31.02 Cancer
2025 Jun 11 08h 28m 17s +18° 44’ 44” 31.02 Cancer
2025 Jun 12 08h 33m 00s +18° 30’ 00” 31.02 Cancer
2025 Jun 13 08h 37m 44s +18° 14’ 51” 31.02 Cancer
2025 Jun 14 08h 42m 27s +17° 59’ 16” 31.02 Cancer
2025 Jun 15 08h 47m 08s +17° 43’ 19” 31.02 Cancer
2025 Jun 16 08h 51m 51s +17° 26’ 58” 31.02 Cancer
2025 Jun 17 08h 56m 32s +17° 10’ 13” 31.02 Cancer
2025 Jun 18 09h 01m 12s +16° 53’ 06” 31.02 Cancer
2025 Jun 19 09h 05m 53s +16° 35’ 36” 31.02 Cancer

Additional Resources on TheSkyLive