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Comets » 

Comet C/2023 U1 (Fuls)

Below the horizon.  Never rises today
Alt: -18.26°   Az: 198.24°   Direction: South-South-West

Comet C/2023 U1 (Fuls) is in the constellation of Horologium, at a distance of 795,278,592.0 kilometers from Earth. The current Right Ascension is 02h 55m 36s and the Declination is -53° 47’ 39” (apparent coordinates). The predicted magnitude of Comet C/2023 U1 (Fuls) is 18.77 (data provided by JPL Horizons).

Finder Charts

Map showing Comet C/2023 U1 (Fuls) in Horologium on February, 19 2025. Field of view: 50x30 degrees
View interactive star map
Sky map showing Comet C/2023 U1 (Fuls) in Horologium on February, 19 2025. Field of view: 15x9 degrees. View in interactive sky chart

High precision deep sky finder chart, 60 arcmin wide, showing where Comet C/2023 U1 (Fuls) is right now. Click on the image to see a more detailed fullscreen tracker view.

C/2023 U1 (Fuls)
RA: 02h 54m 51s
Dec: -53° 53’ 43”
Deep sky finder chart for Comet C/2023 U1 (Fuls). Field of view: 60x40 arcmins. View in deep sky object tracker

Also check out Where is Comet C/2023 U1 (Fuls)?, a page that provides all the information needed to find Comet C/2023 U1 (Fuls) in the sky and additional links to sky charts.

Celestial Coordinates

Apparent

02h 55m 36s
-53° 47’ 39”
02h 00m 50s
04h 56m 26s

J2000

02h 54m 51s
-53° 53’ 43”

Additional Information

Horologium
n/a
n/a
n/a
n/a
18.77

The observed values of Magnitude, Coma Diameter and Tail Length are derived from the most recent observation recorded at the Comet Observers Database. The value of Predicted Magnitude comes from the JPL Horizons ephemerides service and, in the case of comets, might be inaccurate given the highly dynamic and unpredictable behavior of these objects. When available, please refer to the Observed Magnitude value and consider the Predicted Magnitude as a directional indication. We acknowledge with thanks the comet observations from the COBS Comet Observation Database contributed by observers worldwide and used in this table to report recent comet observations.

Rise and Set Times

Today's rise, transit and set times of Comet C/2023 U1 (Fuls) from Greenwich, UK (all times relative to the local timezone Europe/London):

Today Comet C/2023 U1 (Fuls) is not visible from Greenwich, UK

  • C/2023 U1 (Fuls) is below the horizon from Greenwich, UK.
  • Given its current magnitude, C/2023 U1 (Fuls) 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 Comet C/2023 U1 (Fuls) from Earth is currently 795,278,592.0 kilometers, equivalent to 5.3161090347 Astronomical Units. Light takes 44m 12.764s to travel from Comet C/2023 U1 (Fuls) and arrive to us.

795,278,592.0
5.3161090347
44m 12.764s

The following chart shows the distance of Comet C/2023 U1 (Fuls) 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 Comet C/2023 U1 (Fuls) 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. The value of the distance of C/2023 U1 (Fuls) from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest Approach

Between 1 January 2000 and 31 December 2099, the closest approach of Comet C/2023 U1 (Fuls) to Earth happens on Wed Jan 17 2024 at a distance of 4.691326 Astronomical Units, or 701,812,384 kilometers:

Wed Jan 17 2024
701,812,384
4.691326

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

Light Curve

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet C/2023 U1 (Fuls), 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 Comet C/2023 U1 (Fuls) as a function of time

Orbital Elements

The following table lists the orbital elements of Comet C/2023 U1 (Fuls) at epoch 19 October 2023 00:00 UTC (JD: 2460237.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 1.03008184
Orbit inclination i 108.18654780°
Perihelion distance q 4.95667097 AU
741,507,424 km
Aphelion distance Q n.a.
Semi-major axis a n.a.
Orbital period period n.a.
Date of perihelion transit Tp 2024-Oct-13 04:00:43
2,460,596.6672 JD
Argument of perihelion peri 256.06507988337°
Longitude of the ascending node node 305.86335192°
Mean anomaly M -0.16736792291754°
Mean motion n 0.00046599°/day

Orbit Visualization

Orbit Diagram of Comet C/2023 U1 (Fuls)
View Comet C/2023 U1 (Fuls) in the 3D Solar System Simulator

15 Days Ephemeris

The following table lists the ephemerides of Comet C/2023 U1 (Fuls) 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 Feb 12 02h 59m 44s -54° 56’ 38” 18.73 Horologium
2025 Feb 13 02h 59m 06s -54° 47’ 41” 18.74 Horologium
2025 Feb 14 02h 58m 30s -54° 38’ 44” 18.74 Horologium
2025 Feb 15 02h 57m 57s -54° 29’ 50” 18.75 Horologium
2025 Feb 16 02h 57m 25s -54° 20’ 57” 18.75 Horologium
2025 Feb 17 02h 56m 54s -54° 12’ 06” 18.76 Horologium
2025 Feb 18 02h 56m 24s -54° 03’ 19” 18.76 Horologium
2025 Feb 19 02h 55m 57s -53° 54’ 32” 18.77 Horologium
2025 Feb 20 02h 55m 31s -53° 45’ 49” 18.77 Horologium
2025 Feb 21 02h 55m 06s -53° 37’ 10” 18.77 Horologium
2025 Feb 22 02h 54m 43s -53° 28’ 32” 18.78 Horologium
2025 Feb 23 02h 54m 22s -53° 19’ 59” 18.78 Horologium
2025 Feb 24 02h 54m 01s -53° 11’ 29” 18.79 Horologium
2025 Feb 25 02h 53m 42s -53° 03’ 03” 18.79 Horologium

Additional Resources