Comet 150P/LONEOS
Comet 150P/LONEOS is in the constellation of
Sagittarius,
at a distance of
Finder Charts
View interactive star map
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.


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
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
Today's rise, transit and set times of Comet 150P/LONEOS from Greenwich, UK (all times relative to the local timezone Europe/London):
- 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
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.
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:
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.
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
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
- Position and finder charts (see also Where is Comet 150P/LONEOS?)
- Distance from Earth (see also How far is Comet 150P/LONEOS from Earth?)
- When does Comet 150P/LONEOS rise and set?
- Brightness (see also How bright is Comet 150P/LONEOS?)
- Orbital elements. Detailed information about Comet 150P/LONEOS orbital parameters.
- Interactive orbit visualization. 3d visualization showing the orbit of Comet 150P/LONEOS with respect to the major Solar System objects.
- 15 days ephemerides. Table showing celestial coordinates and magnitude of Comet 150P/LONEOS for the past and next 7 days.
- Interactive sky chart. An online planetarium application that shows where to locate Comet 150P/LONEOS in the sky from your location.
- Live position tracker. A high precision sky chart that uses real deep sky imagery to help locate Comet 150P/LONEOS with your telescope or on your astrophotographies.