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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 Cetus on June, 25 2017
High Precision Live Sky Chart
02h 23m 36s
+05° 39’ 51”
 = 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: 84.3°
Max altitude: 44.2°
Azimuth: 275.7°

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 Jun 18 15.63 01h 56m 12s +04° 06’ 29” Pisces
2017 Jun 19 15.61 02h 00m 06s +04° 20’ 13” Pisces
2017 Jun 20 15.60 02h 04m 00s +04° 33’ 51” Pisces
2017 Jun 21 15.58 02h 07m 54s +04° 47’ 21” Cetus
2017 Jun 22 15.57 02h 11m 50s +05° 00’ 42” Cetus
2017 Jun 23 15.56 02h 15m 46s +05° 13’ 54” Cetus
2017 Jun 24 15.55 02h 19m 41s +05° 26’ 57” Cetus
2017 Jun 25 15.54 02h 23m 36s +05° 39’ 51” Cetus
2017 Jun 26 15.53 02h 27m 33s +05° 52’ 35” Cetus
2017 Jun 27 15.52 02h 31m 27s +06° 05’ 08” Cetus
2017 Jun 28 15.51 02h 35m 23s +06° 17’ 33” Cetus
2017 Jun 29 15.50 02h 39m 20s +06° 29’ 45” Cetus
2017 Jun 30 15.49 02h 43m 15s +06° 41’ 48” Cetus
2017 Jul 01 15.48 02h 47m 11s +06° 53’ 38” Cetus

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 20 June 2016 00:00 UTC (JD: 2457560.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.68762877
Orbit inclination i 12.85621867°
Perihelion distance q 1.23548063 AU
184,825,273 km
Aphelion distance Q 6.67485491 AU
998,544,083 km
Semi-major axis a 3.95516777 AU
591,684,678 km
Orbital period period 7.8700 years
2,873.0673 days
Date of perihelion transit Tp 2017-Jul-16 14:22:12
2,457,951.0988 JD
Argument of perihelion peri 246.95371324913°
Longitude of the ascending node node 125.45727021616°
Mean anomaly M 311.05734077312°
Mean motion n 0.12530163°/day
Closest approach to Earth* 2048-Sep-08
Distance of closest approach* 0.39631664 AU
59,288,126 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.