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Comet C/2014 A4 (SONEAR)

Available Resources

Comet C/2014 A4 (SONEAR) Sky Charts and Coordinates

This is a simplified sky chart, showing where Comet C/2014 A4 (SONEAR) 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/2014 A4 (SONEAR) in Cygnus on April, 23 2017
High Precision Live Sky Chart
21h 46m 36s
+38° 51’ 57”
 = 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/2014 A4 (SONEAR) Rise and Set Times

Comet C/2014 A4 (SONEAR) is circumpolar from Greenwich, United Kingdom [change] and transits at 07:40 UTC (altitude: 77.4°)

Comet C/2014 A4 (SONEAR) Orbit Diagram

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2014 A4 (SONEAR) with respect of the Sun and the orbits of the major planets. The position of Comet C/2014 A4 (SONEAR) 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/2014 A4 (SONEAR)
View Comet C/2014 A4 (SONEAR) in the 3D Solar System Simulator

Comet C/2014 A4 (SONEAR) Ephemeris

The following table lists the ephemerides of Comet C/2014 A4 (SONEAR) computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet C/2014 A4 (SONEAR) in our Online Planetarium at the chosen date.

Date MagnitudeMag Right AscensionR.A. DeclinationDec. Constellation
2017 Apr 16 18.57 21h 47m 00s +37° 58’ 36” Cygnus
2017 Apr 17 18.57 21h 46m 59s +38° 06’ 07” Cygnus
2017 Apr 18 18.57 21h 46m 58s +38° 13’ 41” Cygnus
2017 Apr 19 18.57 21h 46m 54s +38° 21’ 17” Cygnus
2017 Apr 20 18.57 21h 46m 50s +38° 28’ 54” Cygnus
2017 Apr 21 18.58 21h 46m 46s +38° 36’ 33” Cygnus
2017 Apr 22 18.58 21h 46m 41s +38° 44’ 14” Cygnus
2017 Apr 23 18.58 21h 46m 36s +38° 51’ 57” Cygnus
2017 Apr 24 18.58 21h 46m 31s +38° 59’ 40” Cygnus
2017 Apr 25 18.58 21h 46m 23s +39° 07’ 26” Cygnus
2017 Apr 26 18.59 21h 46m 15s +39° 15’ 11” Cygnus
2017 Apr 27 18.59 21h 46m 08s +39° 22’ 59” Cygnus
2017 Apr 28 18.59 21h 45m 57s +39° 30’ 47” Cygnus
2017 Apr 29 18.59 21h 45m 48s +39° 38’ 36” Cygnus

Distance of Comet C/2014 A4 (SONEAR) from Earth

The following chart shows the distance of Comet C/2014 A4 (SONEAR) 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/2014 A4 (SONEAR) is also available as a real time updated value in the Live Position and Data Tracker.

Distance of Comet C/2014 A4 (SONEAR) from Earth between January 2013 and January 2030

Light Curve of Comet C/2014 A4 (SONEAR)

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet C/2014 A4 (SONEAR), 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/2014 A4 (SONEAR) between January 2013 and January 2030

Comet C/2014 A4 (SONEAR) Orbital Elements

The following table lists the orbital elements of Comet C/2014 A4 (SONEAR) at epoch 03 October 2015 00:00 UTC (JD: 2457299.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 1.00082760
Orbit inclination i 121.35933072°
Perihelion distance q 4.18017967 AU
625,345,979 km
Aphelion distance Q n.a.
Semi-major axis a n.a.
Orbital period period n.a.
Date of perihelion transit Tp 2015-Sep-05 20:45:12
2,457,271.3647 JD
Argument of perihelion peri 356.78843634273°
Longitude of the ascending node node 29.727168229266°
Mean anomaly M 7.724937075973E-5°
Mean motion n 0.00000275°/day
Closest approach to Earth* 2015-Oct-19
Distance of closest approach* 3.20317197 AU
479,187,707 km

* NOTE: values for the closest approach are computed for the time interval between 2013-Jan-01 and 2030-Jan-01, with a sampling interval of 1 day.