Comet C/2022 U4 (Bok)
Comet C/2022 U4 (Bok) is currently in the constellation of Delphinus, at a distance of 558,222,327 kilometers from Earth.
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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.
Today's rise, transit and set times of Comet C/2022 U4 (Bok) from Greenwich, United Kingdom (all times relative to the local timezone Europe/London):
- C/2022 U4 (Bok) is above the horizon from Greenwich, United Kingdom.
- Right now it is placed in the South direction at an altitude of 43° above the horizon.
- Given its current magnitude, C/2022 U4 (Bok) is visible only through long exposure photography.
- Go to interactive sky chart
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Comet C/2022 U4 (Bok) Position and Finder Charts
Field of view: 10x6 degrees
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Higher precision deep sky finder chart, 60 arcmin wide, showing where Comet C/2022 U4 (Bok) is right now. Click on the image to see a more detailed fullscreen tracker view.
Also check out Where is Comet C/2022 U4 (Bok)?, a page that provides all the information needed to find Comet C/2022 U4 (Bok) in the sky and additional links to sky charts.
Comet C/2022 U4 (Bok) Distance from Earth
The distance of Comet C/2022 U4 (Bok) from Earth is currently 558,222,327 kilometers, equivalent to 3.731486 Astronomical Units. Light takes 31 minutes and 2.0293 seconds to travel from Comet C/2022 U4 (Bok) and arrive to us.
The following chart shows the distance of Comet C/2022 U4 (Bok) 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.
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/2022 U4 (Bok) from Earth is also available as a real time updated value in the Live Position and Data Tracker.
Closest Approach of Comet C/2022 U4 (Bok) to Earth
Between 1 January 2013 and 30 December 2100, the closest approach of Comet C/2022 U4 (Bok) to Earth happens on Fri Mar 24 2023 at a distance of 2.515961 Astronomical Units, or 376,382,421 kilometers:
NOTE: values for the closest approach are computed with a sampling interval of 1 day.
Comet C/2022 U4 (Bok) Brightness and Light Curve
The following chart is the predicted light curve (visual magnitude as a function of time) of Comet C/2022 U4 (Bok), 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.
Comet C/2022 U4 (Bok) Orbital Elements
The following table lists the orbital elements of Comet C/2022 U4 (Bok) at epoch 28 October 2022 00:00 UTC (JD: 2459881.5). Source: JPL Small-Body Database
| Element | Symbol | Value |
|---|---|---|
| Orbit eccentricity | e | 0.99923972 |
| Orbit inclination | i | 52.03927684° |
| Perihelion distance | q | 2.89823704 AU 433,570,091 km |
| Aphelion distance | Q |
7,621.19195984 AU 1,140,114,091,674 km |
| Semi-major axis | a |
3,812.04509844 AU 570,273,830,883 km |
| Orbital period | period |
235,366.8240 years 85,967,732.4787 days |
| Date of perihelion transit | Tp | 2023-Aug-03 16:39:12 2,460,160.1939 JD |
| Next perihelion transit | 237395-Mar-31 04:08 88,427,892.6726 JD |
|
| Argument of perihelion | peri | 89.011065570489° |
| Longitude of the ascending node | node | 132.93315095813° |
| Mean anomaly | M | 359.99883293651° |
| Mean motion | n | 0.00000419°/day |
Visualization of Comet C/2022 U4 (Bok) Orbit
This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2022 U4 (Bok) with respect of the Sun and the orbits of the major planets. The position of Comet C/2022 U4 (Bok) and the planets along their orbits in this diagram accurately represents the current configuration of the objects in the Solar System. This is an experimental feature and it requires a WebGL enabled browser. Please provide us feedback!
View Comet C/2022 U4 (Bok) in the 3D Solar System Simulator
Comet C/2022 U4 (Bok) 15 Days Ephemeris
The following table lists the ephemerides of Comet C/2022 U4 (Bok) computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet C/2022 U4 (Bok) in our Online Planetarium at the chosen date.
| Date | Right AscensionR.A. | DeclinationDec. | MagnitudeMag | Constellation |
|---|---|---|---|---|
| 2024 May 01 | 20h 25m 05s | +05° 02’ 13” | 19.73 | Delphinus |
| 2024 May 02 | 20h 25m 20s | +05° 01’ 40” | 19.73 | Delphinus |
| 2024 May 03 | 20h 25m 36s | +05° 01’ 00” | 19.74 | Delphinus |
| 2024 May 04 | 20h 25m 50s | +05° 00’ 17” | 19.74 | Delphinus |
| 2024 May 05 | 20h 26m 04s | +04° 59’ 30” | 19.74 | Delphinus |
| 2024 May 06 | 20h 26m 17s | +04° 58’ 37” | 19.75 | Delphinus |
| 2024 May 07 | 20h 26m 29s | +04° 57’ 41” | 19.75 | Delphinus |
| 2024 May 08 | 20h 26m 39s | +04° 56’ 39” | 19.76 | Delphinus |
| 2024 May 09 | 20h 26m 48s | +04° 55’ 32” | 19.76 | Delphinus |
| 2024 May 10 | 20h 26m 57s | +04° 54’ 19” | 19.76 | Delphinus |
| 2024 May 11 | 20h 27m 06s | +04° 53’ 00” | 19.77 | Delphinus |
| 2024 May 12 | 20h 27m 12s | +04° 51’ 38” | 19.77 | Delphinus |
| 2024 May 13 | 20h 27m 19s | +04° 50’ 08” | 19.78 | Delphinus |
| 2024 May 14 | 20h 27m 24s | +04° 48’ 33” | 19.78 | Delphinus |