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🌎  Observing from: Greenwich, United Kingdom [change]
🌅 Sunrise: 6:41  ☀️ Transit: 13:03  🌅 Sunset: 19:26

Comet 150P/LONEOS

Comet 150P/LONEOS is currently in the constellation of Aries. The current Right Ascension of Comet 150P/LONEOS is 02h 18m 05s and the Declination is +24° 41’ 15” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet 150P/LONEOS is 21.04 (JPL).

02h 18m 05s
+24° 41’ 15”

Today's rise, transit and set times of Comet 150P/LONEOS from Greenwich, United Kingdom [change] (all times relative to the local timezone Europe/London):

Azimuth: 65.4°
Max altitude: 63.2°
Azimuth: 294.7°
  • 150P/LONEOS is below the horizon from Greenwich, United Kingdom [change].
  • 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.

Available Resources

Comet 150P/LONEOS Position and Finder Charts

Below we provide Comet 150P/LONEOS finder charts showing where the object is right now in the sky with respect to the brightest stars. The first finder chart has a field of view of 50 degrees, while the second one has a field of view of 10 degrees. Click on each finder chart to access a full screen interactive Online Planetarium.

Map showing Comet 150P/LONEOS in Aries on March, 30 2023
Field of view: 50x30 degrees
View fullscreen
Map showing Comet 150P/LONEOS in Aries on March, 30 2023
Field of view: 10x6 degrees
View fullscreen
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Higher 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.

RA: 02h 18m 05s
Dec: +24° 41’ 15”
Deep sky finder chart for Comet 150P/LONEOS
Field of view: 60x40 arcmins
View fullscreen

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.

Comet 150P/LONEOS Distance from Earth

The distance of Comet 150P/LONEOS from Earth is currently 618,849,594 kilometers, equivalent to 4.136754 Astronomical Units. Light takes 34 minutes and 24.2600 seconds to travel from Comet 150P/LONEOS and arrive to us.

34 minutes and 24.2600 seconds

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 of Comet 150P/LONEOS to Earth

Between 1 January 2013 and 30 December 2100, the closest approach of Comet 150P/LONEOS to Earth happens on Wed Feb 14 2024 at a distance of 0.847468 Astronomical Units, or 126,779,437 kilometers:

Wed Feb 14 2024

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

Comet 150P/LONEOS Brightness

The current visual magnitude of Comet 150P/LONEOS is 21.04.


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 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

Comet 150P/LONEOS Orbital Elements

The following table lists the orbital elements of Comet 150P/LONEOS at epoch 15 June 2011 00:00 UTC (JD: 2455728.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.54525318
Orbit inclination i 18.49845852°
Perihelion distance q 1.76852759 AU
264,567,963 km
Aphelion distance Q 6.00954805 AU
899,015,594 km
Semi-major axis a 3.88903782 AU
581,791,778 km
Orbital period period 7.6696 years
2,801.3133 days
Date of perihelion transit Tp 2008-Nov-25 12:16:59
2,454,796.0118 JD
Next perihelion transit 2016-Jul-27 19:48
2,457,597.3251 JD
Argument of perihelion peri 245.63904931126°
Longitude of the ascending node node 272.42974335724°
Mean anomaly M 119.83513487647°
Mean motion n 0.12851115°/day

Visualization of Comet 150P/LONEOS Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 150P/LONEOS with respect of the Sun and the orbits of the major planets. The position of Comet 150P/LONEOS 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!

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

Comet 150P/LONEOS 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. Click on each row of the table to locate Comet 150P/LONEOS in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2023 Mar 23 02h 07m 36s +24° 16’ 09” 21.05 Aries
2023 Mar 24 02h 08m 53s +24° 19’ 10” 21.05 Aries
2023 Mar 25 02h 10m 11s +24° 22’ 14” 21.05 Aries
2023 Mar 26 02h 11m 30s +24° 25’ 19” 21.05 Aries
2023 Mar 27 02h 12m 47s +24° 28’ 27” 21.04 Aries
2023 Mar 28 02h 14m 07s +24° 31’ 37” 21.04 Aries
2023 Mar 29 02h 15m 25s +24° 34’ 50” 21.04 Aries
2023 Mar 30 02h 16m 45s +24° 38’ 03” 21.04 Aries
2023 Mar 31 02h 18m 06s +24° 41’ 18” 21.04 Aries
2023 Apr 01 02h 19m 27s +24° 44’ 35” 21.04 Aries
2023 Apr 02 02h 20m 48s +24° 47’ 53” 21.03 Aries
2023 Apr 03 02h 22m 09s +24° 51’ 14” 21.03 Aries
2023 Apr 04 02h 23m 30s +24° 54’ 34” 21.03 Aries
2023 Apr 05 02h 24m 54s +24° 57’ 57” 21.03 Aries