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public  Greenwich, UK Greenwich, UK  ⓘ
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Comets » 

Comet 150P/LONEOS

Below the horizon.  Rise: 5:16 | Tran: 8:57 | Set: 12:39
Alt: -36.74°   Az: 276.70°   Direction: West

Comet 150P/LONEOS is in the constellation of Sagittarius, at a distance of 580,750,611.0 kilometers from Earth. The current Right Ascension is 18h 48m 28s and the Declination is -24° 11’ 19” (apparent coordinates). The predicted magnitude of Comet 150P/LONEOS is 21.18 (data provided by JPL Horizons).

Finder Charts

Map showing Comet 150P/LONEOS in Sagittarius on February, 17 2025. Field of view: 50x30 degrees
View interactive star map
Sky map showing Comet 150P/LONEOS in Sagittarius on February, 17 2025. Field of view: 15x9 degrees. View in interactive sky chart

High precision deep sky finder chart, 60 arcmin wide, showing where Comet 150P/LONEOS is right now. Click on the image to see a more detailed fullscreen tracker view.

150P/LONEOS
RA: 18h 46m 56s
Dec: -24° 13’ 03”
Deep sky finder chart for Comet 150P/LONEOS. Field of view: 60x40 arcmins. View in deep sky object tracker

Also check out Where is Comet 150P/LONEOS?, a page that provides all the information needed to find Comet 150P/LONEOS in the sky and additional links to sky charts.

Celestial Coordinates

Apparent

18h 48m 28s
-24° 11’ 19”
07h 56m 58s
02h 45m 26s

J2000

18h 46m 56s
-24° 13’ 03”

Additional Information

Sagittarius
n/a
n/a
n/a
n/a
21.18

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 150P/LONEOS from Greenwich, UK (all times relative to the local timezone Europe/London):

Azimuth: 114.2°
Max altitude: 14.3°
Azimuth: 245.8°
  • 150P/LONEOS is below the horizon from Greenwich, UK.
  • Given its current magnitude, 150P/LONEOS 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 150P/LONEOS from Earth is currently 580,750,611.0 kilometers, equivalent to 3.8820780555 Astronomical Units. Light takes 32m 17.176s to travel from Comet 150P/LONEOS and arrive to us.

580,750,611.0
3.8820780555
32m 17.176s

The following chart shows the distance of Comet 150P/LONEOS 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 150P/LONEOS 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 150P/LONEOS 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 150P/LONEOS to Earth happens on Wed Feb 14 2024 at a distance of 0.847467 Astronomical Units, or 126,779,305 kilometers:

Wed Feb 14 2024
126,779,305
0.847467

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 150P/LONEOS, 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 150P/LONEOS as a function of time

Orbital Elements

The following table lists the orbital elements of Comet 150P/LONEOS at epoch 23 July 2019 00:00 UTC (JD: 2458688.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.54650135
Orbit inclination i 18.50821797°
Perihelion distance q 1.75982625 AU
263,266,261 km
Aphelion distance Q 6.00128286 AU
897,779,139 km
Semi-major axis a 3.88055456 AU
580,522,700 km
Orbital period period 7.6445 years
2,792.1524 days
Date of perihelion transit Tp 2016-Jul-24 06:54:40
2,457,593.7880 JD
Next perihelion transit 2024-Mar-16 10:34
2,460,385.9404 JD
Argument of perihelion peri 245.61501922492°
Longitude of the ascending node node 272.40798272251°
Mean anomaly M 141.1442778425°
Mean motion n 0.12893279°/day

Orbit Visualization

Orbit Diagram of Comet 150P/LONEOS
View Comet 150P/LONEOS in the 3D Solar System Simulator

15 Days Ephemeris

The following table lists the ephemerides of Comet 150P/LONEOS 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 10 18h 39m 04s -24° 37’ 43” 21.18 Sagittarius
2025 Feb 11 18h 40m 19s -24° 34’ 23” 21.18 Sagittarius
2025 Feb 12 18h 41m 34s -24° 31’ 02” 21.18 Sagittarius
2025 Feb 13 18h 42m 48s -24° 27’ 38” 21.18 Sagittarius
2025 Feb 14 18h 44m 01s -24° 24’ 13” 21.18 Sagittarius
2025 Feb 15 18h 45m 14s -24° 20’ 46” 21.18 Sagittarius
2025 Feb 16 18h 46m 26s -24° 17’ 18” 21.18 Sagittarius
2025 Feb 17 18h 47m 37s -24° 13’ 48” 21.18 Sagittarius
2025 Feb 18 18h 48m 48s -24° 10’ 16” 21.18 Sagittarius
2025 Feb 19 18h 49m 58s -24° 06’ 43” 21.18 Sagittarius
2025 Feb 20 18h 51m 07s -24° 03’ 09” 21.18 Sagittarius
2025 Feb 21 18h 52m 15s -23° 59’ 34” 21.18 Sagittarius
2025 Feb 22 18h 53m 23s -23° 55’ 56” 21.18 Sagittarius
2025 Feb 23 18h 54m 30s -23° 52’ 18” 21.18 Sagittarius

Additional Resources