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Comet 249P/LINEAR

Comet 249P/LINEAR is currently in the constellation of Taurus. The current Right Ascension of Comet 249P/LINEAR is 04h 58m 49s and the Declination is +16° 42’ 34” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet 249P/LINEAR is 22.07 (JPL).

Summary of key facts about Comet 249P/LINEAR [tip: you can also create a Quick Access page for this data if you access it frequently and would like to have a simpler view]:

04h 58m 49s
+16° 42’ 34”
  • 249P/LINEAR is above the horizon from Greenwich, United Kingdom [change].
  • It is visible looking in the East direction at an altitude of 17° above the horizon.
  • Given its current magnitude, 249P/LINEAR is visible only through long exposure photography.
  • See also 249P/LINEAR rise and set times.
  • 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.

Additional information about Comet 249P/LINEAR available on TheSkyLive:

Available Resources

Comet 249P/LINEAR Position and Finder Charts

Below we provide Comet 249P/LINEAR 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 249P/LINEAR in Taurus on January, 25 2021
Field of view: 50x30 degrees
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Map showing Comet 249P/LINEAR in Taurus on January, 25 2021
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 249P/LINEAR is right now. Click on the image to see a more detailed fullscreen tracker view.

RA: 04h 58m 49s
Dec: +16° 42’ 34”
Deep sky finder chart for Comet 249P/LINEAR
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 249P/LINEAR?, a page that provides all the information needed to find Comet 249P/LINEAR in the sky and additional links to sky charts.

Comet 249P/LINEAR Distance from Earth

The distance of Comet 249P/LINEAR from Earth is currently 316,409,074 kilometers, equivalent to 2.115064 Astronomical Units. Light takes 17 minutes and 35.4271 seconds to travel from Comet 249P/LINEAR and arrive to us.

17 minutes and 35.4271 seconds

The following chart shows the distance of Comet 249P/LINEAR 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.

Distance of Comet 249P/LINEAR from Earth between January 2013 and December 2100

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 249P/LINEAR from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet 249P/LINEAR to Earth

Between January 2013 and December 2100, the closest approach of Comet 249P/LINEAR to Earth happens on Thu Apr 23 2076 at a distance of 0.050572 Astronomical Units, or 7,565,498 kilometers:

Thu Apr 23 2076

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

Comet 249P/LINEAR brightness

The current visual magnitude of Comet 249P/LINEAR is 22.07.


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 249P/LINEAR, 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.

Predicted magnitude of Comet 249P/LINEAR between January 2013 and December 2100

Comet 249P/LINEAR rise and set times

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's Comet 249P/LINEAR rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 73.3°
Max altitude: 55.2°
Azimuth: 286.7°

The rise and set times are defined as the time at which the upper limb of Comet 249P/LINEAR touches the horizon, considering the effect of the atmospheric refraction. As the atmospheric conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.

Comet 249P/LINEAR Orbital Elements

The following table lists the orbital elements of Comet 249P/LINEAR at epoch 10 April 2014 00:00 UTC (JD: 2456758.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.81795212
Orbit inclination i 8.40998952°
Perihelion distance q 0.50459421 AU
75,486,220 km
Aphelion distance Q 5.03893866 AU
753,814,495 km
Semi-major axis a 2.77176643 AU
414,650,357 km
Orbital period period 4.6100 years
1,685.5179 days
Date of perihelion transit Tp 2015-Nov-27 01:37:32
2,457,353.5677 JD
Next perihelion transit 2020-Jul-08 14:03
2,459,039.0857 JD
Argument of perihelion peri 64.46944978279°
Longitude of the ascending node node 240.15906933622°
Mean anomaly M 232.90293298936°
Mean motion n 0.21358420°/day

Visualization of Comet 249P/LINEAR Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 249P/LINEAR with respect of the Sun and the orbits of the major planets. The position of Comet 249P/LINEAR 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 249P/LINEAR
View Comet 249P/LINEAR in the 3D Solar System Simulator

Comet 249P/LINEAR 15 Days Ephemeris

The following table lists the ephemerides of Comet 249P/LINEAR computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 249P/LINEAR in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2021 Jan 18 05h 02m 54s +16° 40’ 20” 21.87 Taurus
2021 Jan 19 05h 02m 16s +16° 40’ 27” 21.90 Taurus
2021 Jan 20 05h 01m 38s +16° 40’ 36” 21.92 Taurus
2021 Jan 21 05h 01m 04s +16° 40’ 49” 21.95 Taurus
2021 Jan 22 05h 00m 30s +16° 41’ 05” 21.98 Taurus
2021 Jan 23 05h 00m 00s +16° 41’ 26” 22.00 Taurus
2021 Jan 24 04h 59m 30s +16° 41’ 49” 22.03 Taurus
2021 Jan 25 04h 59m 03s +16° 42’ 17” 22.05 Taurus
2021 Jan 26 04h 58m 40s +16° 42’ 48” 22.08 Taurus
2021 Jan 27 04h 58m 17s +16° 43’ 23” 22.11 Taurus
2021 Jan 28 04h 57m 56s +16° 44’ 00” 22.13 Taurus
2021 Jan 29 04h 57m 37s +16° 44’ 42” 22.16 Taurus
2021 Jan 30 04h 57m 20s +16° 45’ 25” 22.18 Taurus
2021 Jan 31 04h 57m 03s +16° 46’ 13” 22.21 Taurus