Comet C/2022 U4 (Bok)

Comet C/2022 U4 (Bok) is currently in the constellation of Ursa Major. The current Right Ascension of Comet C/2022 U4 (Bok) is 13h 15m 11s and the Declination is +52° 36’ 43” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet C/2022 U4 (Bok) is 17.70 (JPL).

Today's rise, transit and set times of Comet C/2022 U4 (Bok) from Greenwich, United Kingdom [change] (all times relative to the local timezone Europe/London):

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Available Resources

• Position and finder charts (see also Where is Comet C/2022 U4 (Bok)?)
• Distance from Earth (see also How far is Comet C/2022 U4 (Bok) from Earth?)
• When does Comet C/2022 U4 (Bok) rise and set?
• Brightness (see also How bright is Comet C/2022 U4 (Bok)?)
• Orbital elements. Detailed information about Comet C/2022 U4 (Bok) orbital parameters.
• Interactive orbit visualization. 3d visualization showing the orbit of Comet C/2022 U4 (Bok) with respect to the major Solar System objects.
• 15 days ephemerides. Table showing celestial coordinates and magnitude of Comet C/2022 U4 (Bok) for the past and next 7 days.
• Interactive sky chart. An online planetarium application that shows where to locate Comet C/2022 U4 (Bok) in the sky from your location.
• Live position tracker. A high precision sky chart that uses real deep sky imagery to help locate Comet C/2022 U4 (Bok) with your telescope or on your astrophotographies.

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 376,384,319 kilometers, equivalent to 2.515974 Astronomical Units. Light takes 20 minutes and 55.4829 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

The current visual magnitude of Comet C/2022 U4 (Bok) is 17.70.

The observed magnitude and coma diameter values are derived from the Comet Observers Database by averaging the values reported in recent observations (more recent than 4 days), when available. The Estimated Magnitude comes from the JPL Horizons ephemerides service and might be inaccurate given the highly dynamic and unpredictable behavior of comets. When available, please refer to the Observed Magnitude value and consider the Estimated 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.

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.

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!

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
2023 Mar 16	13h 16m 50s	+50° 50’ 35”	17.76	Canes Venatici
2023 Mar 17	13h 16m 41s	+51° 05’ 12”	17.75	Canes Venatici
2023 Mar 18	13h 16m 31s	+51° 19’ 33”	17.74	Canes Venatici
2023 Mar 19	13h 16m 19s	+51° 33’ 39”	17.74	Canes Venatici
2023 Mar 20	13h 16m 06s	+51° 47’ 29”	17.73	Canes Venatici
2023 Mar 21	13h 15m 52s	+52° 01’ 00”	17.72	Canes Venatici
2023 Mar 22	13h 15m 38s	+52° 14’ 14”	17.71	Canes Venatici
2023 Mar 23	13h 15m 23s	+52° 27’ 11”	17.71	Ursa Major
2023 Mar 24	13h 15m 06s	+52° 39’ 48”	17.70	Ursa Major
2023 Mar 25	13h 14m 48s	+52° 52’ 09”	17.69	Ursa Major
2023 Mar 26	13h 14m 30s	+53° 04’ 09”	17.69	Ursa Major
2023 Mar 27	13h 14m 12s	+53° 15’ 51”	17.68	Ursa Major
2023 Mar 28	13h 13m 51s	+53° 27’ 12”	17.67	Ursa Major
2023 Mar 29	13h 13m 31s	+53° 38’ 15”	17.67	Ursa Major