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Comet 217P/LINEAR

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Comet 217P/LINEAR Position

Comet 217P/LINEAR is currently in the constellation of Leo. The current Right Ascension is 11h 57m 58s and the Declination is +13° 14’ 43”.

11h 57m 58s
+13° 14’ 43”

Simplified sky chart showing where Comet 217P/LINEAR is right now in the sky with respect to the brightest stars and constellations (see full screen Online Planetarium)

Map showing Comet 217P/LINEAR in Leo on March, 29 2020
Field of view: 60x30 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 showing where Comet 217P/LINEAR is right now (view fullscreen)

RA: 11h 57m 58s
Dec: +13° 14’ 43”
Deep sky finder chart for Comet 217P/LINEAR
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 217P/LINEAR?, a page that provides all the information needed to find Comet 217P/LINEAR in the sky and additional links to sky charts.

Comet 217P/LINEAR Distance

The distance of Comet 217P/LINEAR from Earth is currently 785,608,404 kilometers, equivalent to 5.251468 Astronomical Units. Light takes 43 minutes and 40.5076 seconds to travel from Comet 217P/LINEAR and arrive to us.

43 minutes and 40.5076 seconds

The following chart shows the distance of Comet 217P/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 217P/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 217P/LINEAR from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet 217P/LINEAR to Earth

Between January 2013 and December 2100 the closest approach of Comet 217P/LINEAR to Earth happens on Tue Sep 8 2048 at a distance of 0.39623986 Astronomical Units, or 59,276,639 kilometers:

Tue Sep 8 2048

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

Comet 217P/LINEAR brightness

The current visual magnitude of Comet 217P/LINEAR is 23.05.


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 217P/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 217P/LINEAR between January 2013 and December 2100

Comet 217P/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 217P/LINEAR rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 76.8°
Max altitude: 51.8°
Azimuth: 283.2°
Comet 217P/LINEAR is below the horizon from Greenwich, United Kingdom

The rise and set times are defined as the time at which the upper limb of Comet 217P/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 217P/LINEAR Orbital Elements

The following table lists the orbital elements of Comet 217P/LINEAR at epoch 04 August 2010 00:00 UTC (JD: 2455413.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.68961244
Orbit inclination i 12.88038542°
Perihelion distance q 1.22423456 AU
183,142,884 km
Aphelion distance Q 6.66419081 AU
996,948,757 km
Semi-major axis a 3.94421268 AU
590,045,820 km
Orbital period period 7.8300 years
2,861.1387 days
Date of perihelion transit Tp 2009-Sep-08 23:38:08
2,455,083.4848 JD
Next perihelion transit 2017-Jul-10 02:57
2,457,944.6235 JD
Argument of perihelion peri 246.7641713336°
Longitude of the ascending node node 125.62090728776°
Mean anomaly M 41.523839812298°
Mean motion n 0.12582403°/day

Visualization of Comet 217P/LINEAR Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 217P/LINEAR with respect of the Sun and the orbits of the major planets. The position of Comet 217P/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 217P/LINEAR
View Comet 217P/LINEAR in the 3D Solar System Simulator

Comet 217P/LINEAR 15 Days Ephemeris

The following table lists the ephemerides of Comet 217P/LINEAR computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 217P/LINEAR in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2020 Mar 22 12h 02m 02s +12° 48’ 42” 23.03 Virgo
2020 Mar 23 12h 01m 30s +12° 52’ 19” 23.03 Virgo
2020 Mar 24 12h 00m 57s +12° 55’ 53” 23.03 Virgo
2020 Mar 25 12h 00m 24s +12° 59’ 22” 23.04 Virgo
2020 Mar 26 11h 59m 53s +13° 02’ 48” 23.04 Virgo
2020 Mar 27 11h 59m 21s +13° 06’ 11” 23.04 Virgo
2020 Mar 28 11h 58m 49s +13° 09’ 30” 23.04 Virgo
2020 Mar 29 11h 58m 18s +13° 12’ 46” 23.05 Leo
2020 Mar 30 11h 57m 46s +13° 15’ 56” 23.05 Leo
2020 Mar 31 11h 57m 15s +13° 19’ 03” 23.06 Leo
2020 Apr 01 11h 56m 44s +13° 22’ 05” 23.06 Leo
2020 Apr 02 11h 56m 12s +13° 25’ 04” 23.06 Leo
2020 Apr 03 11h 55m 41s +13° 27’ 59” 23.07 Leo
2020 Apr 04 11h 55m 11s +13° 30’ 47” 23.07 Leo