Comet 21P/Giacobini-Zinner Sky Charts and Coordinates
This is a simplified sky chart, showing where Comet 21P/Giacobini-Zinner 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 21P/Giacobini-Zinner Rise and Set Times
Today's Comet 21P/Giacobini-Zinner rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the local timezone Europe/London.
Comet 21P/Giacobini-Zinner Orbit Diagram
This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 21P/Giacobini-Zinner with respect of the Sun and the orbits of the major planets. The position of Comet 21P/Giacobini-Zinner 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!
Comet 21P/Giacobini-Zinner Ephemeris
The following table lists the ephemerides of Comet 21P/Giacobini-Zinner computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 21P/Giacobini-Zinner in our Online Planetarium at the chosen date.
|2017 Dec 05||21.06||15h 59m 44s||-03° 47’ 59”||Libra|
|2017 Dec 06||21.04||16h 01m 05s||-03° 49’ 19”||Libra|
|2017 Dec 07||21.02||16h 02m 29s||-03° 50’ 34”||Ophiucus|
|2017 Dec 08||21.00||16h 03m 51s||-03° 51’ 43”||Ophiucus|
|2017 Dec 09||20.98||16h 05m 13s||-03° 52’ 49”||Ophiucus|
|2017 Dec 10||20.96||16h 06m 37s||-03° 53’ 48”||Ophiucus|
|2017 Dec 11||20.94||16h 08m 00s||-03° 54’ 43”||Ophiucus|
|2017 Dec 12||20.92||16h 09m 24s||-03° 55’ 32”||Ophiucus|
|2017 Dec 13||20.89||16h 10m 47s||-03° 56’ 17”||Ophiucus|
|2017 Dec 14||20.87||16h 12m 11s||-03° 56’ 56”||Ophiucus|
|2017 Dec 15||20.85||16h 13m 36s||-03° 57’ 29”||Ophiucus|
|2017 Dec 16||20.83||16h 15m 01s||-03° 57’ 56”||Ophiucus|
|2017 Dec 17||20.80||16h 16m 26s||-03° 58’ 18”||Ophiucus|
|2017 Dec 18||20.78||16h 17m 50s||-03° 58’ 36”||Ophiucus|
Distance of Comet 21P/Giacobini-Zinner from Earth
The following chart shows the distance of Comet 21P/Giacobini-Zinner 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 21P/Giacobini-Zinner is also available as a real time updated value in the Live Position and Data Tracker.
Light Curve of Comet 21P/Giacobini-Zinner
The following chart is the predicted light curve (visual magnitude as a function of time) of Comet 21P/Giacobini-Zinner, 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.
Comet 21P/Giacobini-Zinner Orbital Elements
The following table lists the orbital elements of Comet 21P/Giacobini-Zinner at epoch 24 July 2013 00:00 UTC (JD: 2456498.5). Source: JPL Small-Body Database
|Perihelion distance||q||1.03069627 AU
|Date of perihelion transit||Tp||2012-Feb-11 15:01:21
|Next perihelion transit||2018-Sep-15 05:56
|Argument of perihelion||peri||172.58442490903°|
|Longitude of the ascending node||node||195.39701448518°|
|Closest approach to Earth*||2018-Sep-11|
|Distance of closest approach*||0.39085753 AU
* 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.