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Comet C/2016 U1 (NEOWISE)

Available Resources

Comet C/2016 U1 (NEOWISE) Sky Charts and Coordinates

This is a simplified sky chart, showing where Comet C/2016 U1 (NEOWISE) 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/2016 U1 (NEOWISE) in Eridanus on July, 22 2017
High Precision Live Sky Chart
03h 15m 38s
-18° 51’ 57”
18.85
 = 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/2016 U1 (NEOWISE) Rise and Set Times

Today's Comet C/2016 U1 (NEOWISE) rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the local timezone Europe/London.

Azimuth: 108.9°
Max altitude: 19.7°
Azimuth: 251.1°

Comet C/2016 U1 (NEOWISE) Orbit Diagram

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2016 U1 (NEOWISE) with respect of the Sun and the orbits of the major planets. The position of Comet C/2016 U1 (NEOWISE) 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/2016 U1 (NEOWISE)
View Comet C/2016 U1 (NEOWISE) in the 3D Solar System Simulator

Comet C/2016 U1 (NEOWISE) Ephemeris

The following table lists the ephemerides of Comet C/2016 U1 (NEOWISE) computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet C/2016 U1 (NEOWISE) in our Online Planetarium at the chosen date.

Date MagnitudeMag Right AscensionR.A. DeclinationDec. Constellation
2017 Jul 15 18.73 03h 13m 00s -18° 10’ 51” Eridanus
2017 Jul 16 18.75 03h 13m 26s -18° 16’ 22” Eridanus
2017 Jul 17 18.77 03h 13m 50s -18° 21’ 59” Eridanus
2017 Jul 18 18.78 03h 14m 14s -18° 27’ 42” Eridanus
2017 Jul 19 18.80 03h 14m 36s -18° 33’ 35” Eridanus
2017 Jul 20 18.82 03h 14m 58s -18° 39’ 36” Eridanus
2017 Jul 21 18.83 03h 15m 19s -18° 45’ 42” Eridanus
2017 Jul 22 18.85 03h 15m 38s -18° 51’ 57” Eridanus
2017 Jul 23 18.86 03h 15m 56s -18° 58’ 19” Eridanus
2017 Jul 24 18.88 03h 16m 14s -19° 04’ 49” Eridanus
2017 Jul 25 18.90 03h 16m 31s -19° 11’ 26” Eridanus
2017 Jul 26 18.91 03h 16m 45s -19° 18’ 08” Eridanus
2017 Jul 27 18.93 03h 16m 59s -19° 24’ 59” Eridanus
2017 Jul 28 18.94 03h 17m 12s -19° 31’ 55” Eridanus

Distance of Comet C/2016 U1 (NEOWISE) from Earth

The following chart shows the distance of Comet C/2016 U1 (NEOWISE) 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/2016 U1 (NEOWISE) is also available as a real time updated value in the Live Position and Data Tracker.

Distance of Comet C/2016 U1 (NEOWISE) from Earth between January 2013 and December 2075

Light Curve of Comet C/2016 U1 (NEOWISE)

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet C/2016 U1 (NEOWISE), 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/2016 U1 (NEOWISE) between January 2013 and December 2075

Comet C/2016 U1 (NEOWISE) Orbital Elements

The following table lists the orbital elements of Comet C/2016 U1 (NEOWISE) at epoch 11 December 2016 00:00 UTC (JD: 2457734.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 1.00024966
Orbit inclination i 46.43469573°
Perihelion distance q 0.31916821 AU
47,746,885 km
Aphelion distance Q n.a.
Semi-major axis a n.a.
Orbital period period n.a.
Date of perihelion transit Tp 2017-Jan-14 00:24:07
2,457,767.5167 JD
Argument of perihelion peri 162.74857224725°
Longitude of the ascending node node 61.428365828616°
Mean anomaly M -0.00071191831531383°
Mean motion n 0.00002156°/day
Closest approach to Earth* 2016-Dec-12
Distance of closest approach* 0.70900022 AU
106,064,923 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.