Comet C/2012 S1 (ISON)
The observed values of Magnitude, Coma Diameter and Tail Length are derived from the most recent observation recorded at the Comet Observers Database. The value of Predicted Magnitude comes from the JPL Horizons ephemerides service and, in the case of comets, might be inaccurate given the highly dynamic and unpredictable behavior of these objects. When available, please refer to the Observed Magnitude value and consider the Predicted Magnitude as a directional indication. We acknowledge with thanks the comet observations from the COBS Comet Observation Database contributed by observers worldwide and used in this table to report recent comet observations.
- C/2012 S1 (ISON) is above the horizon from Greenwich, United Kingdom .
- Right now it is placed in the East-North-East direction at an altitude of 34° above the horizon.
- Go to interactive sky chart
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Comet C/2012 S1 (ISON) Position and Finder Charts
Below we provide Comet C/2012 S1 (ISON) finder charts showing where the object is right now in the sky with respect to the brightest stars. The first finder chart has a field of view of 50 degrees, while the second one has a field of view of 10 degrees. Click on each finder chart to access a full screen interactive Online Planetarium.
Higher precision deep sky finder chart, 60 arcmin wide, showing where Comet C/2012 S1 (ISON) is right now. Click on the image to see a more detailed fullscreen tracker view.
Also check out Where is Comet C/2012 S1 (ISON)?, a page that provides all the information needed to find Comet C/2012 S1 (ISON) in the sky and additional links to sky charts.
Comet C/2012 S1 (ISON) Distance from Earth
The distance of Comet C/2012 S1 (ISON) from Earth is currently 3,974,621,908 kilometers, equivalent to 26.568706 Astronomical Units. Light takes 3 hours, 40 minutes and 57.9116 seconds to travel from Comet C/2012 S1 (ISON) and arrive to us.
The following chart shows the distance of Comet C/2012 S1 (ISON) from Earth as a function of time. In the chart the distance data is measured in Astronomical Units and sampled with an interval of 1 day.
The value of the reported distance might be somewhat inaccurate around the times of closest approach for objects passing extremely close to Earth. The value of the distance of C/2012 S1 (ISON) from Earth is also available as a real time updated value in the Live Position and Data Tracker.
Closest Approach of Comet C/2012 S1 (ISON) to Earth
Between 1 January 2013 and 30 December 2100, the closest approach of Comet C/2012 S1 (ISON) to Earth happens on Fri Dec 27 2013 at a distance of 0.430624 Astronomical Units, or 64,420,498 kilometers:
NOTE: values for the closest approach are computed with a sampling interval of 1 day.
Comet C/2012 S1 (ISON) Brightness and Light Curve
Comet C/2012 S1 (ISON) Orbital Elements
|Perihelion distance||q||0.01246671 AU
|Date of perihelion transit||Tp||2013-Nov-28 18:20:55
|Argument of perihelion||peri||345.54119894206°|
|Longitude of the ascending node||node||295.68654180456°|
Visualization of Comet C/2012 S1 (ISON) Orbit
This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2012 S1 (ISON) with respect of the Sun and the orbits of the major planets. The position of Comet C/2012 S1 (ISON) 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/2012 S1 (ISON) 15 Days Ephemeris
The following table lists the ephemerides of Comet C/2012 S1 (ISON) computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet C/2012 S1 (ISON) in our Online Planetarium at the chosen date.
|2023 Nov 29||07h 32m 52s||+37° 28’ 06”||N.A.||Lynx|
|2023 Nov 30||07h 32m 44s||+37° 28’ 45”||N.A.||Lynx|
|2023 Dec 01||07h 32m 35s||+37° 29’ 25”||N.A.||Lynx|
|2023 Dec 02||07h 32m 26s||+37° 30’ 03”||N.A.||Lynx|
|2023 Dec 03||07h 32m 18s||+37° 30’ 42”||N.A.||Lynx|
|2023 Dec 04||07h 32m 09s||+37° 31’ 21”||N.A.||Lynx|
|2023 Dec 05||07h 32m 02s||+37° 31’ 59”||N.A.||Lynx|
|2023 Dec 06||07h 31m 53s||+37° 32’ 36”||N.A.||Lynx|
|2023 Dec 07||07h 31m 44s||+37° 33’ 14”||N.A.||Lynx|
|2023 Dec 08||07h 31m 33s||+37° 33’ 51”||N.A.||Lynx|
|2023 Dec 09||07h 31m 24s||+37° 34’ 27”||N.A.||Lynx|
|2023 Dec 10||07h 31m 15s||+37° 35’ 03”||N.A.||Lynx|
|2023 Dec 11||07h 31m 05s||+37° 35’ 39”||N.A.||Lynx|
|2023 Dec 12||07h 30m 56s||+37° 36’ 15”||N.A.||Lynx|