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Comet C/2015 V2 (Johnson)

Available Resources

Comet C/2015 V2 (Johnson) Sky Charts and Coordinates

This is a simplified sky chart, showing where Comet C/2015 V2 (Johnson) 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/2015 V2 (Johnson) in Telescopium on December, 12 2017
High Precision Live Sky Chart
20h 05m 21s
-56° 18’ 48”
13.80
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Comet C/2015 V2 (Johnson) Rise and Set Times

Comet C/2015 V2 (Johnson) is currently not visible from Greenwich, United Kingdom [change]

Comet C/2015 V2 (Johnson) Orbit Diagram

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2015 V2 (Johnson) with respect of the Sun and the orbits of the major planets. The position of Comet C/2015 V2 (Johnson) 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!

Orbit Diagram of Comet C/2015 V2 (Johnson)
View Comet C/2015 V2 (Johnson) in the 3D Solar System Simulator

Comet C/2015 V2 (Johnson) Ephemeris

The following table lists the ephemerides of Comet C/2015 V2 (Johnson) computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet C/2015 V2 (Johnson) in our Online Planetarium at the chosen date.

Date MagnitudeMag Right AscensionR.A. DeclinationDec. Constellation
2017 Dec 05 13.65 19h 43m 45s -56° 42’ 23” Telescopium
2017 Dec 06 13.67 19h 46m 53s -56° 39’ 29” Telescopium
2017 Dec 07 13.69 19h 49m 59s -56° 36’ 27” Telescopium
2017 Dec 08 13.71 19h 53m 04s -56° 33’ 14” Telescopium
2017 Dec 09 13.73 19h 56m 11s -56° 29’ 52” Telescopium
2017 Dec 10 13.75 19h 59m 15s -56° 26’ 20” Telescopium
2017 Dec 11 13.78 20h 02m 18s -56° 22’ 38” Telescopium
2017 Dec 12 13.80 20h 05m 21s -56° 18’ 48” Telescopium
2017 Dec 13 13.82 20h 08m 25s -56° 14’ 49” Telescopium
2017 Dec 14 13.84 20h 11m 26s -56° 10’ 41” Telescopium
2017 Dec 15 13.86 20h 14m 26s -56° 06’ 25” Telescopium
2017 Dec 16 13.88 20h 17m 26s -56° 02’ 02” Telescopium
2017 Dec 17 13.90 20h 20m 26s -55° 57’ 29” Telescopium
2017 Dec 18 13.91 20h 23m 25s -55° 52’ 49” Telescopium

Distance of Comet C/2015 V2 (Johnson) from Earth

The following chart shows the distance of Comet C/2015 V2 (Johnson) 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/2015 V2 (Johnson) is also available as a real time updated value in the Live Position and Data Tracker.

Distance of Comet C/2015 V2 (Johnson) from Earth between January 2013 and December 2075

Light Curve of Comet C/2015 V2 (Johnson)

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet C/2015 V2 (Johnson), 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.

Predicted magnitude of Comet C/2015 V2 (Johnson) between January 2013 and December 2075

Comet C/2015 V2 (Johnson) Orbital Elements

The following table lists the orbital elements of Comet C/2015 V2 (Johnson) at epoch 29 December 2016 00:00 UTC (JD: 2457752.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 1.00167241
Orbit inclination i 49.87483498°
Perihelion distance q 1.63693236 AU
244,881,596 km
Aphelion distance Q n.a.
Semi-major axis a n.a.
Orbital period period n.a.
Date of perihelion transit Tp 2017-Jun-12 08:23:36
2,457,916.8497 JD
Argument of perihelion peri 164.89894044573°
Longitude of the ascending node node 69.852635760173°
Mean anomaly M -0.0052898396309808°
Mean motion n 0.00003219°/day
Closest approach to Earth* 2017-Jun-05
Distance of closest approach* 0.81110541 AU
121,339,642 km

* 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.