Comet C/2017 O1 (ASASSN1)
Comet C/2017 O1 (ASASSN1) Sky Charts and Coordinates
This is a simplified sky chart, showing where Comet C/2017 O1 (ASASSN1) 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 C/2017 O1 (ASASSN1) Rise and Set Times
Comet C/2017 O1 (ASASSN1) is circumpolar from Greenwich, United Kingdom [change] and transits at 18:31 UTC (altitude: 54.9°)
Comet C/2017 O1 (ASASSN1) Orbit Diagram
This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2017 O1 (ASASSN1) with respect of the Sun and the orbits of the major planets. The position of Comet C/2017 O1 (ASASSN1) 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 C/2017 O1 (ASASSN1) Ephemeris
The following table lists the ephemerides of Comet C/2017 O1 (ASASSN1) computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet C/2017 O1 (ASASSN1) in our Online Planetarium at the chosen date.
|2017 Dec 06||13.91||01h 24m 51s||+86° 43’ 00”||Cepheus|
|2017 Dec 07||13.95||01h 10m 00s||+86° 44’ 45”||Cepheus|
|2017 Dec 08||13.99||00h 55m 57s||+86° 45’ 20”||Cepheus|
|2017 Dec 09||14.04||00h 42m 52s||+86° 44’ 52”||Cepheus|
|2017 Dec 10||14.08||00h 30m 57s||+86° 43’ 31”||Cepheus|
|2017 Dec 11||14.12||00h 20m 15s||+86° 41’ 27”||Cepheus|
|2017 Dec 12||14.16||00h 10m 46s||+86° 38’ 50”||Cepheus|
|2017 Dec 13||14.21||00h 02m 30s||+86° 35’ 49”||Cepheus|
|2017 Dec 14||14.25||23h 55m 27s||+86° 32’ 30”||Cepheus|
|2017 Dec 15||14.29||23h 49m 29s||+86° 28’ 59”||Cepheus|
|2017 Dec 16||14.34||23h 44m 38s||+86° 25’ 23”||Cepheus|
|2017 Dec 17||14.38||23h 40m 45s||+86° 21’ 43”||Cepheus|
|2017 Dec 18||14.42||23h 37m 49s||+86° 18’ 06”||Cepheus|
|2017 Dec 19||14.47||23h 35m 44s||+86° 14’ 31”||Cepheus|
Distance of Comet C/2017 O1 (ASASSN1) from Earth
The following chart shows the distance of Comet C/2017 O1 (ASASSN1) 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 C/2017 O1 (ASASSN1) is also available as a real time updated value in the Live Position and Data Tracker.
Light Curve of Comet C/2017 O1 (ASASSN1)
The following chart is the predicted light curve (visual magnitude as a function of time) of Comet C/2017 O1 (ASASSN1), 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 C/2017 O1 (ASASSN1) Orbital Elements
The following table lists the orbital elements of Comet C/2017 O1 (ASASSN1) at epoch 07 September 2017 00:00 UTC (JD: 2458004.5). Source: JPL Small-Body Database
|Perihelion distance||q||1.49868885 AU
|Date of perihelion transit||Tp||2017-Oct-14 18:51:12
|Next perihelion transit||10710-May-17 10:22
|Argument of perihelion||peri||20.908204462563°|
|Longitude of the ascending node||node||25.80957399475°|
|Closest approach to Earth*||2017-Oct-18|
|Distance of closest approach*||0.71975009 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.