Comet C/2017 K4 (ATLAS)
Comet C/2017 K4 (ATLAS) is currently in the constellation of Perseus. The current Right Ascension of Comet C/2017 K4 (ATLAS) is 04h 26m 31s and the Declination is +34° 20’ 44” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet C/2017 K4 (ATLAS) is 28.24 (JPL).
Summary of key facts about Comet C/2017 K4 (ATLAS) [tip: you can also create a Quick Access page for this data if you access it frequently and would like to have a simpler view]:
- C/2017 K4 (ATLAS) is above the horizon from Greenwich, United Kingdom [change].
- It is visible looking in the East-South-East direction at an altitude of 62° above the horizon.
- Given its current magnitude, C/2017 K4 (ATLAS) is visible only through long exposure photography.
- See also C/2017 K4 (ATLAS) rise and set times.
- Go to interactive sky chart
If you need to access this information frequently for your observations, you can create a simple customized Quick Access page, so that you can easily bookmark it in your browser favorites or add a shortcut to your mobile phones' home screen.
Additional information about Comet C/2017 K4 (ATLAS) available on TheSkyLive:
Comet C/2017 K4 (ATLAS) Position and Finder Charts
Below we provide Comet C/2017 K4 (ATLAS) finder charts showing where the object is right now in the sky with respect to the brightest stars. The first finder chart has a field of view of 50 degrees, while the second one has a field of view of 10 degrees. Click on each finder chart to access a full screen interactive Online Planetarium.
Higher precision deep sky finder chart, 60 arcmin wide, showing where Comet C/2017 K4 (ATLAS) is right now. Click on the image to see a more detailed fullscreen tracker view.
Also check out Where is Comet C/2017 K4 (ATLAS)?, a page that provides all the information needed to find Comet C/2017 K4 (ATLAS) in the sky and additional links to sky charts.
Comet C/2017 K4 (ATLAS) Distance from Earth
The distance of Comet C/2017 K4 (ATLAS) from Earth is currently 1,294,688,539 kilometers, equivalent to 8.654458 Astronomical Units. Light takes 1 hours, 11 minutes and 58.6161 seconds to travel from Comet C/2017 K4 (ATLAS) and arrive to us.
The following chart shows the distance of Comet C/2017 K4 (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/2017 K4 (ATLAS) from Earth is also available as a real time updated value in the Live Position and Data Tracker.
Closest approach of Comet C/2017 K4 (ATLAS) to Earth
Between January 2013 and December 2100, the closest approach of Comet C/2017 K4 (ATLAS) to Earth happens on Mon Jul 3 2017 at a distance of 2.310735 Astronomical Units, or 345,681,065 kilometers:
NOTE: values for the closest approach are computed with a sampling interval of 1 day.
Comet C/2017 K4 (ATLAS) brightness
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 behavior 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/2017 K4 (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/2017 K4 (ATLAS) rise and set times
The rise and set times are defined as the time at which the upper limb of Comet C/2017 K4 (ATLAS) touches the horizon, considering the effect of the atmospheric refraction. As the atmospheric conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.
Comet C/2017 K4 (ATLAS) Orbital Elements
|Perihelion distance||q||2.64808502 AU
|Date of perihelion transit||Tp||2018-Jan-08 01:00:52
|Next perihelion transit||2167-Mar-15 13:13
|Argument of perihelion||peri||15.111910899548°|
|Longitude of the ascending node||node||298.89726993063°|
Visualization of Comet C/2017 K4 (ATLAS) Orbit
This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2017 K4 (ATLAS) with respect of the Sun and the orbits of the major planets. The position of Comet C/2017 K4 (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!
Comet C/2017 K4 (ATLAS) 15 Days Ephemeris
The following table lists the ephemerides of Comet C/2017 K4 (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/2017 K4 (ATLAS) in our Online Planetarium at the chosen date.
|2021 Jan 16||04h 28m 05s||+34° 35’ 41”||28.16||Perseus|
|2021 Jan 17||04h 27m 51s||+34° 33’ 44”||28.17||Perseus|
|2021 Jan 18||04h 27m 38s||+34° 31’ 49”||28.18||Perseus|
|2021 Jan 19||04h 27m 24s||+34° 29’ 53”||28.19||Perseus|
|2021 Jan 20||04h 27m 11s||+34° 27’ 56”||28.20||Perseus|
|2021 Jan 21||04h 27m 01s||+34° 26’ 00”||28.21||Perseus|
|2021 Jan 22||04h 26m 49s||+34° 24’ 06”||28.22||Perseus|
|2021 Jan 23||04h 26m 39s||+34° 22’ 10”||28.23||Perseus|
|2021 Jan 24||04h 26m 29s||+34° 20’ 17”||28.24||Perseus|
|2021 Jan 25||04h 26m 18s||+34° 18’ 23”||28.25||Perseus|
|2021 Jan 26||04h 26m 09s||+34° 16’ 28”||28.26||Perseus|
|2021 Jan 27||04h 26m 00s||+34° 14’ 36”||28.27||Perseus|
|2021 Jan 28||04h 25m 53s||+34° 12’ 43”||28.28||Perseus|
|2021 Jan 29||04h 25m 45s||+34° 10’ 53”||28.29||Perseus|