Comet 117P/Helin-Roman-Alu 1
Comet 117P/Helin-Roman-Alu 1 Sky Charts and Coordinates
This is a simplified sky chart, showing where Comet 117P/Helin-Roman-Alu 1 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 117P/Helin-Roman-Alu 1 Rise and Set Times
Today's Comet 117P/Helin-Roman-Alu 1 rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the local timezone Europe/London.
Comet 117P/Helin-Roman-Alu 1 Orbit Diagram
This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 117P/Helin-Roman-Alu 1 with respect of the Sun and the orbits of the major planets. The position of Comet 117P/Helin-Roman-Alu 1 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 117P/Helin-Roman-Alu 1 Ephemeris
The following table lists the ephemerides of Comet 117P/Helin-Roman-Alu 1 computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 117P/Helin-Roman-Alu 1 in our Online Planetarium at the chosen date.
|2018 Apr 12||19.82||05h 51m 28s||+28° 40’ 15”||Auriga|
|2018 Apr 13||19.82||05h 52m 05s||+28° 40’ 00”||Auriga|
|2018 Apr 14||19.83||05h 52m 44s||+28° 39’ 46”||Auriga|
|2018 Apr 15||19.83||05h 53m 22s||+28° 39’ 32”||Auriga|
|2018 Apr 16||19.84||05h 54m 02s||+28° 39’ 16”||Auriga|
|2018 Apr 17||19.85||05h 54m 42s||+28° 39’ 02”||Auriga|
|2018 Apr 18||19.85||05h 55m 23s||+28° 38’ 48”||Auriga|
|2018 Apr 19||19.86||05h 56m 03s||+28° 38’ 32”||Auriga|
|2018 Apr 20||19.86||05h 56m 44s||+28° 38’ 17”||Auriga|
|2018 Apr 21||19.87||05h 57m 26s||+28° 38’ 02”||Auriga|
|2018 Apr 22||19.87||05h 58m 09s||+28° 37’ 46”||Auriga|
|2018 Apr 23||19.88||05h 58m 53s||+28° 37’ 31”||Auriga|
|2018 Apr 24||19.88||05h 59m 35s||+28° 37’ 14”||Auriga|
|2018 Apr 25||19.89||06h 00m 20s||+28° 36’ 59”||Auriga|
Distance of Comet 117P/Helin-Roman-Alu 1 from Earth
The following chart shows the distance of Comet 117P/Helin-Roman-Alu 1 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 117P/Helin-Roman-Alu 1 is also available as a real time updated value in the Live Position and Data Tracker.
Light Curve of Comet 117P/Helin-Roman-Alu 1
The following chart is the predicted light curve (visual magnitude as a function of time) of Comet 117P/Helin-Roman-Alu 1, 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 117P/Helin-Roman-Alu 1 Orbital Elements
The following table lists the orbital elements of Comet 117P/Helin-Roman-Alu 1 at epoch 11 December 2009 00:00 UTC (JD: 2455177.5). Source: JPL Small-Body Database
|Perihelion distance||q||3.04436241 AU
|Date of perihelion transit||Tp||2005-Dec-20 20:09:01
|Next perihelion transit||2014-Mar-26 21:38
|Argument of perihelion||peri||223.02406488238°|
|Longitude of the ascending node||node||58.929729076157°|
|Closest approach to Earth*||2022-Jul-03|
|Distance of closest approach*||2.03085644 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.