Comet C/2018 A3 (ATLAS)
Comet C/2018 A3 (ATLAS) Position
Comet C/2018 A3 (ATLAS) is currently in the constellation of Perseus. The current Right Ascension is 04h 11m 34s and the Declination is +49° 42’ 25”.
Simplified sky chart showing where Comet C/2018 A3 (ATLAS) is right now in the sky with respect to the brightest stars and constellations (see fuillscreen Online Planetarium)
Field of view: 60x30 degrees
View fullscreen
Hihgher precision deep sky finder chart showing where Comet C/2018 A3 (ATLAS) is right now (view fullscreen)
Also check out Where is Comet C/2018 A3 (ATLAS)?, a page that provides all the information needed to find Comet C/2018 A3 (ATLAS) in the sky and additional links to sky charts.
Comet C/2018 A3 (ATLAS) Distance
The distance of Comet C/2018 A3 (ATLAS) from Earth is currently 585,336,605 kilometers, equivalent to 3.912734 Astronomical Units. Light takes 32 minutes and 32.4728 seconds to travel from Comet C/2018 A3 (ATLAS) and arrive to us.
The following chart shows the distance of Comet C/2018 A3 (ATLAS) from Earth as a function of time. In the chart the distance data is measured in Astronomical Units and sampled with an interval of 1 day.
The value of the reported distance might be somewhat inaccurate around the times of closest approach for objects passing extremely close to Earth. The value of the distance of C/2018 A3 (ATLAS) from Earth is also available as a real time updated value in the Live Position and Data Tracker.
Closest approach of Comet C/2018 A3 (ATLAS) to Earth
Between January 2013 and December 2100 the closest approach of Comet C/2018 A3 (ATLAS) to Earth happens on Thu Jan 10 2019 at a distance of 2.60582263 Astronomical Units, or 389,825,517 kilometers:
NOTE: values for the closest approach are computed with a sampling interval of 1 day.
Comet C/2018 A3 (ATLAS) brightness
The current visual magnitude of Comet C/2018 A3 (ATLAS) is 17.46.
The observed magnitude and coma diameter values are derived from the Comet Observers Database by averaging the values reported in recent observations (more recent than 4 days), when available. The Estimated Magnitude comes from the JPL Horizons ephemerides service and might be inaccurate given the highly dynamic and unpredictable behvior of comets. When available, please refer to the Observed Magnitude value and consider the Estimated Magnitude as a directional indication. We acknowledge with thanks the comet observations from the COBS Comet Observation Database contributed by observers worldwide and used in this table to report recent comet observations.
The following chart is the predicted light curve (visual magnitude as a function of time) of Comet C/2018 A3 (ATLAS), 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.
Comet C/2018 A3 (ATLAS) rise and set times
Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London
Comet C/2018 A3 (ATLAS) is circumpolar and transits at 06:06 UTC (altitude: 88.2°)
The rise and set times are defined as the time at which the upper limb of Comet C/2018 A3 (ATLAS) touches the horizon, consideting the effect of the atmospheric refraction. As the atmoshpere conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.
Comet C/2018 A3 (ATLAS) Orbital Elements
The following table lists the orbital elements of Comet C/2018 A3 (ATLAS) at epoch 28 July 2018 00:00 UTC (JD: 2458328.5). Source: JPL Small-Body Database
| Element | Symbol | Value |
|---|---|---|
| Orbit eccentricity | e | 0.99328237 |
| Orbit inclination | i | 139.56119349° |
| Perihelion distance | q | 3.27673682 AU 490,192,853 km |
| Aphelion distance | Q |
972.28635635 AU 145,451,968,912 km |
| Semi-major axis | a |
487.78154659 AU 72,971,080,883 km |
| Orbital period | period |
10,773.2400 years 3,934,925.1570 days |
| Date of perihelion transit | Tp | 2019-Jan-12 20:47:39 2,458,496.3664 JD |
| Next perihelion transit | 12792-Jun-29 00:33 6,393,421.5234 JD |
|
| Argument of perihelion | peri | 86.424515216771° |
| Longitude of the ascending node | node | 194.27710331893° |
| Mean anomaly | M | 359.98464216956° |
| Mean motion | n | 0.00009149°/day |
Visualization of Comet C/2018 A3 (ATLAS) Orbit
This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2018 A3 (ATLAS) with respect of the Sun and the orbits of the major planets. The position of Comet C/2018 A3 (ATLAS) 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!
View Comet C/2018 A3 (ATLAS) in the 3D Solar System Simulator
Comet C/2018 A3 (ATLAS) 15 Days Ephemeris
The following table lists the ephemerides of Comet C/2018 A3 (ATLAS) computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet C/2018 A3 (ATLAS) in our Online Planetarium at the chosen date.
| Date | Right AscensionR.A. | DeclinationDec. | MagnitudeMag | Constellation |
|---|---|---|---|---|
| 2019 Aug 16 | 04h 16m 56s | +49° 28’ 59” | 17.48 | Perseus |
| 2019 Aug 17 | 04h 16m 20s | +49° 30’ 50” | 17.47 | Perseus |
| 2019 Aug 18 | 04h 15m 42s | +49° 32’ 39” | 17.47 | Perseus |
| 2019 Aug 19 | 04h 15m 02s | +49° 34’ 27” | 17.47 | Perseus |
| 2019 Aug 20 | 04h 14m 21s | +49° 36’ 14” | 17.47 | Perseus |
| 2019 Aug 21 | 04h 13m 36s | +49° 37’ 59” | 17.47 | Perseus |
| 2019 Aug 22 | 04h 12m 51s | +49° 39’ 42” | 17.46 | Perseus |
| 2019 Aug 23 | 04h 12m 05s | +49° 41’ 25” | 17.46 | Perseus |
| 2019 Aug 24 | 04h 11m 16s | +49° 43’ 04” | 17.46 | Perseus |
| 2019 Aug 25 | 04h 10m 24s | +49° 44’ 41” | 17.46 | Perseus |
| 2019 Aug 26 | 04h 09m 32s | +49° 46’ 15” | 17.46 | Perseus |
| 2019 Aug 27 | 04h 08m 36s | +49° 47’ 47” | 17.45 | Perseus |
| 2019 Aug 28 | 04h 07m 40s | +49° 49’ 14” | 17.45 | Perseus |
| 2019 Aug 29 | 04h 06m 41s | +49° 50’ 39” | 17.45 | Perseus |