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
Comet 21P/Giacobini-Zinner is circumpolar from Greenwich, United Kingdom [change] and transits at 03:08 UTC (altitude: 82.9°)
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.
|2018 Jun 14||15.18||20h 51m 57s||+40° 24’ 19”||Cygnus|
|2018 Jun 15||15.14||20h 53m 48s||+40° 58’ 11”||Cygnus|
|2018 Jun 16||15.10||20h 55m 42s||+41° 32’ 09”||Cygnus|
|2018 Jun 17||15.06||20h 57m 38s||+42° 06’ 14”||Cygnus|
|2018 Jun 18||15.02||20h 59m 35s||+42° 40’ 23”||Cygnus|
|2018 Jun 19||14.98||21h 01m 33s||+43° 14’ 35”||Cygnus|
|2018 Jun 20||14.94||21h 03m 34s||+43° 48’ 52”||Cygnus|
|2018 Jun 21||14.90||21h 05m 38s||+44° 23’ 12”||Cygnus|
|2018 Jun 22||14.86||21h 07m 42s||+44° 57’ 36”||Cygnus|
|2018 Jun 23||14.82||21h 09m 51s||+45° 32’ 02”||Cygnus|
|2018 Jun 24||14.78||21h 12m 01s||+46° 06’ 29”||Cygnus|
|2018 Jun 25||14.74||21h 14m 15s||+46° 40’ 59”||Cygnus|
|2018 Jun 26||14.69||21h 16m 31s||+47° 15’ 30”||Cygnus|
|2018 Jun 27||14.65||21h 18m 50s||+47° 50’ 02”||Cygnus|
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 29 December 2017 00:00 UTC (JD: 2458117.5). Source: JPL Small-Body Database
|Perihelion distance||q||1.01315110 AU
|Date of perihelion transit||Tp||2018-Sep-10 06:27:47
|Argument of perihelion||peri||172.83191932167°|
|Longitude of the ascending node||node||195.40028173068°|
|Closest approach to Earth*||2058-Sep-18|
|Distance of closest approach*||0.37340131 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.