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Comet 217P/LINEAR

Available Resources

Comet 217P/LINEAR Sky Charts and Coordinates

This is a simplified sky chart, showing where Comet 217P/LINEAR is now with respect to the brightest stars and constellations.

More advanced sky charts are available on TheSkyLive for this object: 1) the Online Planetarium which is interactive and allows to select dates and additional objects to visualize; and 2) the Live Position and Data Tracker which provides the highest precision position data and features deep sky imagery from the Digitized Sky Survey.

Comet 217P/LINEAR in Capricornus on August, 19 2017
High Precision Live Sky Chart
21h 35m 53s
-24° 17’ 09”
29.63
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Comet 217P/LINEAR Rise and Set Times

Today's Comet 217P/LINEAR rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the local timezone Europe/London.

Azimuth: 114.3°
Max altitude: 14.2°
Azimuth: 245.7°

Comet 217P/LINEAR Orbit Diagram

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 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 MagnitudeMag Right AscensionR.A. DeclinationDec. Constellation
2017 Aug 12 29.56 21h 41m 21s -24° 04’ 37” Capricornus
2017 Aug 13 29.57 21h 40m 33s -24° 06’ 38” Capricornus
2017 Aug 14 29.58 21h 39m 47s -24° 08’ 34” Capricornus
2017 Aug 15 29.58 21h 38m 59s -24° 10’ 26” Capricornus
2017 Aug 16 29.59 21h 38m 12s -24° 12’ 12” Capricornus
2017 Aug 17 29.61 21h 37m 27s -24° 13’ 57” Capricornus
2017 Aug 18 29.62 21h 36m 39s -24° 15’ 34” Capricornus
2017 Aug 19 29.63 21h 35m 53s -24° 17’ 09” Capricornus
2017 Aug 20 29.64 21h 35m 08s -24° 18’ 39” Capricornus
2017 Aug 21 29.65 21h 34m 22s -24° 20’ 04” Capricornus
2017 Aug 22 29.66 21h 33m 35s -24° 21’ 25” Capricornus
2017 Aug 23 29.67 21h 32m 50s -24° 22’ 41” Capricornus
2017 Aug 24 29.68 21h 32m 06s -24° 23’ 53” Capricornus
2017 Aug 25 29.69 21h 31m 21s -24° 24’ 59” Capricornus

Distance of Comet 217P/LINEAR from Earth

The following chart shows the distance of Comet 217P/LINEAR from Earth as a function of time. Distance data is measured in Astronomical Units and sampled with a 2 days interval.

The reported distances might be inaccurate around the times of closest approach for objects passing extremely close to Earth. The value of the distance of 217P/LINEAR is also available as a real time updated value in the Live Position and Data Tracker.

Distance of Comet 217P/LINEAR from Earth between January 2013 and December 2075

Light Curve of Comet 217P/LINEAR

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 2075

Comet 217P/LINEAR Orbital Elements

The following table lists the orbital elements of Comet 217P/LINEAR at epoch 31 January 2009 00:00 UTC (JD: 2454863.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.68964811
Orbit inclination i 12.88194578°
Perihelion distance q 1.22359285 AU
183,046,886 km
Aphelion distance Q 6.66160392 AU
996,561,765 km
Semi-major axis a 3.94259839 AU
589,804,325 km
Orbital period period 7.8300 years
2,859.3824 days
Date of perihelion transit Tp 2009-Sep-08 23:28:12
2,455,083.4779 JD
Next perihelion transit 2017-Jul-08 08:38
2,457,942.8603 JD
Argument of perihelion peri 246.76962462714°
Longitude of the ascending node node 125.62162409946°
Mean anomaly M 332.30448990594°
Mean motion n 0.12590131°/day
Closest approach to Earth* 2043-Mar-08
Distance of closest approach* 0.87549633 AU
130,972,388 km

* NOTE: values for the closest approach are computed for the time interval between 2013-Jan-01 and 2075-Dec-31, with a sampling interval of 1 day.