Online Sky Maps and Ephemeris for Solar System Objects

Comet C/2014 A4 (SONEAR)

  • Currently above the horizon from Greenwich, United Kingdom [change]
  • Rises at 07:06, transits at 12:58 (maximum altitude: 37.1°) and sets at 18:49 (UTC time)

Available Resources

  1. Ephemeris
  2. Light Curve
  3. Distance from Earth
  4. Orbital Elements
  5. Location and Finder Chart
  6. Planetarium View

Comet C/2014 A4 (SONEAR) Ephemeris

Ephemeris of Comet C/2014 A4 (SONEAR) in tabluar form, computed for the past and next 7 days. Click on each row to view the sky map in the online planetarium:

Date Magnitude Right Ascension Declination Constellation
2015 Apr 14 16.57 02h 53m 09s -02° 31’ 32” Eridanus
2015 Apr 15 16.57 02h 53m 26s -02° 22’ 28” Eridanus
2015 Apr 16 16.57 02h 53m 43s -02° 13’ 27” Eridanus
2015 Apr 17 16.57 02h 53m 59s -02° 04’ 30” Eridanus
2015 Apr 18 16.57 02h 54m 16s -01° 55’ 36” Eridanus
2015 Apr 19 16.57 02h 54m 33s -01° 46’ 44” Eridanus
2015 Apr 20 16.57 02h 54m 51s -01° 37’ 54” Eridanus
2015 Apr 21 16.57 02h 55m 08s -01° 29’ 08” Eridanus
2015 Apr 22 16.57 02h 55m 26s -01° 20’ 26” Eridanus
2015 Apr 23 16.57 02h 55m 44s -01° 11’ 45” Cetus
2015 Apr 24 16.57 02h 56m 02s -01° 03’ 08” Cetus
2015 Apr 25 16.56 02h 56m 20s -00° 54’ 34” Cetus
2015 Apr 26 16.56 02h 56m 39s -00° 46’ 04” Cetus
2015 Apr 27 16.56 02h 56m 57s -00° 37’ 35” Cetus

Comet C/2014 A4 (SONEAR) Light Curve

The following chart is the predicted light curve according to the most recent C/2014 A4 (SONEAR) ephemerides data.

Data is sampled with a 2 days interval, so there might be inaccuracies for objects changing brightness very rapidly. Also, for comets there might be in general large discrepancies between the observed and predicted brightness because of the their highly unpredictable behaviour.

Comet C/2014 A4 (SONEAR) Distance from Earth

The following chart shows the distance of Comet C/2014 A4 (SONEAR) from Earth as a function of time.

Data is sampled with a 2 days interval, there might be inaccuracies for objects passing very close to Earth, at the time of their closest distance to the earth.

Comet C/2014 A4 (SONEAR) Orbital Elements

The following table reports Comet C/2014 A4 (SONEAR) orbital elements at epoch 2014 Sep 17 00:00 UTC (JD: 2456918.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 1.00037880
Orbit inclination i 121.35255709°
Perihelion distance q 4.18045218 AU
625,386,745 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 21:01:49
2,457,271.3763 JD
Argument of perihelion peri 356.78717717°
Longitude of the ascending node node 29.7313665083°
Mean anomaly M -0.000299991808926°
Mean motion n 0.00000085°/day
Closest approach to Earth* 2015-Oct-19
Distance of closest approach* 3.20331650 AU
479,209,328 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.