Comet C/2023 X2 (Lemmon)

Comet C/2023 X2 (Lemmon) is in the constellation of Camelopardalis, at a distance of 899,749,534.0 kilometers from Earth. The current Right Ascension is 05h 16m 40s and the Declination is +59° 09’ 46” (apparent coordinates). The estimated magnitude of comet C/2023 X2 (Lemmon), computed using JPL Horizons's data, is 18.66).

Finder Charts

The sky charts below show, at different resolutions, the position of comet C/2023 X2 (Lemmon) in the sky. Click on each chart to access the interactive star map tool.

The following map uses photographic imagery from the Digitized Sky Survey (DSS) to realistically visualize the precise position of comet C/2023 X2 (Lemmon) against the stars in the background. The horizontal size of the map measures 60 arcminutes. Click on the image to access a more detailed full-screen view.

Equatorial Coordinates

Apparent

J2000

Additional Information

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

The following table lists today's rise, transit and set times of comet C/2023 X2 (Lemmon) from Paris (FR) (all times relative to the local timezone Europe/Paris):

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 X2 (Lemmon) from Earth is currently 899,749,534.0 kilometers, equivalent to 6.0144541482 Astronomical Units. Light takes 50m 1.241s to travel from comet C/2023 X2 (Lemmon) and arrive to us.

The following graph shows the distance of comet C/2023 X2 (Lemmon) from Earth as a function of time. In the chart the distance is measured in Astronomical Units and the data is sampled with an interval of 1 day.

The value of the distance of C/2023 X2 (Lemmon) from Earth is also available as a real time updated value in the live position tracker.

Closest Approach to Earth

In the period between January 1, 2000 and December 31, 2099, the closest approach of comet C/2023 X2 (Lemmon) to Earth will happen on Thursday 11 December 2025 at a distance of 4.685871 Astronomical Units, or 700,996,300 kilometers:

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

Light Curve

The following chart shows the light curve of comet C/2023 X2 (Lemmon), i.e., its apparent magnitude as a function of time. The curve is calculated using the latest ephemerides provided by JPL Horizons. The magnitude data is sampled with the interval of 2 days. Because of this sampling, inaccuracies may occur for objects that have large variations of brightness over a few days. For comets, large discrepancies can arise between the calculated brightness and the observations due to their highly dynamic, and not always precisely predictable, behavior.

15 Days Ephemeris

The following table lists the ephemerides of comet C/2023 X2 (Lemmon) 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
Jun 25 2025	05h 07m 00s	+58° 13’ 28”	18.68	Camelopardalis
Jun 26 2025	05h 08m 21s	+58° 21’ 17”	18.68	Camelopardalis
Jun 27 2025	05h 09m 42s	+58° 29’ 09”	18.68	Camelopardalis
Jun 28 2025	05h 11m 04s	+58° 37’ 04”	18.67	Camelopardalis
Jun 29 2025	05h 12m 26s	+58° 45’ 01”	18.67	Camelopardalis
Jun 30 2025	05h 13m 48s	+58° 53’ 02”	18.66	Camelopardalis
Jul 01 2025	05h 15m 11s	+59° 01’ 06”	18.66	Camelopardalis
Jul 02 2025	05h 16m 34s	+59° 09’ 13”	18.66	Camelopardalis
Jul 03 2025	05h 17m 57s	+59° 17’ 22”	18.65	Camelopardalis
Jul 04 2025	05h 19m 22s	+59° 25’ 35”	18.65	Camelopardalis
Jul 05 2025	05h 20m 46s	+59° 33’ 50”	18.64	Camelopardalis
Jul 06 2025	05h 22m 11s	+59° 42’ 09”	18.64	Camelopardalis
Jul 07 2025	05h 23m 36s	+59° 50’ 30”	18.63	Camelopardalis
Jul 08 2025	05h 25m 02s	+59° 58’ 55”	18.63	Camelopardalis

Additional Resources on TheSkyLive

• Comet C/2023 X2 (Lemmon): Complete reference information on TheSkyLive.com.
• Where is comet C/2023 X2 (Lemmon)?: Key information on where to find comet C/2023 X2 (Lemmon) in the sky.
• Distance of comet C/2023 X2 (Lemmon) from Earth: Find out how far comet C/2023 X2 (Lemmon) is from Earth right now.
• How Bright is comet C/2023 X2 (Lemmon)?: Current visual brightness (magnitude) and apparent size.
• Rise and Set Times: Rise and set times of comet C/2023 X2 (Lemmon) from your location.
• Interactive Sky Map: Planetarium-style interactive visualization of comet C/2023 X2 (Lemmon)'s position in the sky.
• Live Position Tracker: High precision real time tracker of comet C/2023 X2 (Lemmon)'s position using deep space imagery.
• Ephemeris: 15 days comet C/2023 X2 (Lemmon)'s computed ephemeris.
• Orbital elements: Information about comet C/2023 X2 (Lemmon) orbital parameters.
• Orbit Visualization: 3D interactive visualization showing the orbit of comet C/2023 X2 (Lemmon) with respect to the major Solar System objects.