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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 Centaurus on August, 20 2017
High Precision Live Sky Chart
14h 51m 33s
-40° 25’ 59”
 = 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 Aug 13 10.53 14h 41m 04s -37° 33’ 24” Centaurus
2017 Aug 14 10.57 14h 42m 29s -37° 59’ 16” Centaurus
2017 Aug 15 10.60 14h 43m 55s -38° 24’ 42” Centaurus
2017 Aug 16 10.63 14h 45m 23s -38° 49’ 45” Centaurus
2017 Aug 17 10.67 14h 46m 53s -39° 14’ 22” Centaurus
2017 Aug 18 10.70 14h 48m 24s -39° 38’ 38” Centaurus
2017 Aug 19 10.73 14h 49m 58s -40° 02’ 30” Centaurus
2017 Aug 20 10.77 14h 51m 33s -40° 25’ 59” Centaurus
2017 Aug 21 10.80 14h 53m 08s -40° 49’ 05” Centaurus
2017 Aug 22 10.83 14h 54m 47s -41° 11’ 52” Centaurus
2017 Aug 23 10.87 14h 56m 27s -41° 34’ 15” Centaurus
2017 Aug 24 10.90 14h 58m 09s -41° 56’ 20” Centaurus
2017 Aug 25 10.93 14h 59m 53s -42° 18’ 02” Centaurus
2017 Aug 26 10.96 15h 01m 37s -42° 39’ 26” Lupus

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 19 December 2016 00:00 UTC (JD: 2457742.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 1.00166424
Orbit inclination i 49.87475343°
Perihelion distance q 1.63692249 AU
244,880,119 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 08:25:25
2,457,916.8510 JD
Argument of perihelion peri 164.89956128158°
Longitude of the ascending node node 69.852749597797°
Mean anomaly M -0.0055707118619994°
Mean motion n 0.00003195°/day
Closest approach to Earth* 2017-Jun-05
Distance of closest approach* 0.81109735 AU
121,338,437 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.