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 18:26 UTC (altitude: 82.6°)
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.
|2018 Apr 15||19.90||08h 16m 33s||+60° 59’ 44”||Ursa Major|
|2018 Apr 16||19.94||08h 18m 26s||+60° 41’ 44”||Ursa Major|
|2018 Apr 17||19.98||08h 20m 18s||+60° 23’ 48”||Ursa Major|
|2018 Apr 18||20.02||08h 22m 09s||+60° 05’ 57”||Ursa Major|
|2018 Apr 19||20.06||08h 24m 01s||+59° 48’ 10”||Ursa Major|
|2018 Apr 20||20.10||08h 25m 50s||+59° 30’ 25”||Lynx|
|2018 Apr 21||20.14||08h 27m 39s||+59° 12’ 47”||Lynx|
|2018 Apr 22||20.18||08h 29m 27s||+58° 55’ 10”||Lynx|
|2018 Apr 23||20.22||08h 31m 15s||+58° 37’ 38”||Lynx|
|2018 Apr 24||20.25||08h 33m 02s||+58° 20’ 12”||Lynx|
|2018 Apr 25||20.29||08h 34m 49s||+58° 02’ 48”||Lynx|
|2018 Apr 26||20.33||08h 36m 34s||+57° 45’ 29”||Ursa Major|
|2018 Apr 27||20.37||08h 38m 20s||+57° 28’ 14”||Ursa Major|
|2018 Apr 28||20.41||08h 40m 04s||+57° 11’ 03”||Ursa Major|
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 October 2017 00:00 UTC (JD: 2458034.5). Source: JPL Small-Body Database
|Perihelion distance||q||1.49868490 AU
|Date of perihelion transit||Tp||2017-Oct-14 18:50:52
|Next perihelion transit||10578-Oct-13 21:14
|Argument of perihelion||peri||20.907954236586°|
|Longitude of the ascending node||node||25.809430525021°|
|Closest approach to Earth*||2017-Oct-18|
|Distance of closest approach*||0.71974432 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.