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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 Grus on February, 21 2018
High Precision Live Sky Chart
23h 04m 05s
-48° 27’ 27”
 = 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
2018 Feb 14 14.89 22h 49m 41s -49° 18’ 15” Grus
2018 Feb 15 14.90 22h 51m 47s -49° 10’ 54” Grus
2018 Feb 16 14.91 22h 53m 52s -49° 03’ 34” Grus
2018 Feb 17 14.93 22h 55m 55s -48° 56’ 17” Grus
2018 Feb 18 14.94 22h 57m 59s -48° 49’ 00” Grus
2018 Feb 19 14.96 23h 00m 02s -48° 41’ 48” Grus
2018 Feb 20 14.97 23h 02m 03s -48° 34’ 36” Grus
2018 Feb 21 14.98 23h 04m 05s -48° 27’ 27” Grus
2018 Feb 22 15.00 23h 06m 06s -48° 20’ 20” Grus
2018 Feb 23 15.01 23h 08m 04s -48° 13’ 14” Grus
2018 Feb 24 15.02 23h 10m 04s -48° 06’ 12” Grus
2018 Feb 25 15.04 23h 12m 02s -47° 59’ 13” Grus
2018 Feb 26 15.05 23h 13m 59s -47° 52’ 17” Grus
2018 Feb 27 15.06 23h 15m 56s -47° 45’ 24” Grus

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 30 December 2016 00:00 UTC (JD: 2457753.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 1.00167374
Orbit inclination i 49.87483490°
Perihelion distance q 1.63693334 AU
244,881,743 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 08:23:25
2,457,916.8496 JD
Argument of perihelion peri 164.89889119367°
Longitude of the ascending node node 69.852606577528°
Mean anomaly M -0.005263895698761°
Mean motion n 0.00003222°/day
Closest approach to Earth* 2017-Jun-05
Distance of closest approach* 0.81110529 AU
121,339,624 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.