Comet ATLAS (C/2019 Y4)

Comet ATLAS (C/2019 Y4) is currently in the constellation of Monoceros.

The current Right Ascension of Comet ATLAS (C/2019 Y4) is 06h 55m 01s and the Declination is +09° 23’ 58” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom edit_location_alt). The current estimated magnitude of Comet ATLAS (C/2019 Y4) is 24.55 (JPL).

The observed values of Magnitude, Coma Diameter and Tail Length are derived from the most recent observation recorded at the Comet Observers Database. The value of Predicted Magnitude comes from the JPL Horizons ephemerides service and, in the case of comets, might be inaccurate given the highly dynamic and unpredictable behavior of these objects. When available, please refer to the Observed Magnitude value and consider the Predicted 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.

Today's rise, transit and set times of Comet ATLAS (C/2019 Y4) from Greenwich, United Kingdom edit_location_alt (all times relative to the local timezone Europe/London):

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Available Resources

• Position and finder charts (see also Where is Comet ATLAS (C/2019 Y4)?)
• Distance from Earth (see also How far is Comet ATLAS (C/2019 Y4) from Earth?)
• When does Comet ATLAS (C/2019 Y4) rise and set?
• Brightness (see also How bright is Comet ATLAS (C/2019 Y4)?)
• Orbital elements. Detailed information about Comet ATLAS (C/2019 Y4) orbital parameters.
• Interactive orbit visualization. 3d visualization showing the orbit of Comet ATLAS (C/2019 Y4) with respect to the major Solar System objects.
• 15 days ephemerides. Table showing celestial coordinates and magnitude of Comet ATLAS (C/2019 Y4) for the past and next 7 days.
• Interactive sky chart. An online planetarium application that shows where to locate Comet ATLAS (C/2019 Y4) in the sky from your location.
• Live position tracker. A high precision sky chart that uses real deep sky imagery to help locate Comet ATLAS (C/2019 Y4) with your telescope or on your astrophotographies.

Higher precision deep sky finder chart, 60 arcmin wide, showing where Comet ATLAS (C/2019 Y4) is right now. Click on the image to see a more detailed fullscreen tracker view.

Also check out Where is Comet ATLAS (C/2019 Y4)?, a page that provides all the information needed to find Comet ATLAS (C/2019 Y4) in the sky and additional links to sky charts.

Comet ATLAS (C/2019 Y4) Distance from Earth

The distance of Comet ATLAS (C/2019 Y4) from Earth is currently 1,854,498,296 kilometers, equivalent to 12.396555 Astronomical Units. Light takes 1 hours, 43 minutes and 5.9405 seconds to travel from Comet ATLAS (C/2019 Y4) and arrive to us.

The following chart shows the distance of Comet ATLAS (C/2019 Y4) 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/2019 Y4 (ATLAS) from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest Approach of Comet ATLAS (C/2019 Y4) to Earth

Between 1 January 2013 and 30 December 2100, the closest approach of Comet ATLAS (C/2019 Y4) to Earth happens on Sun May 24 2020 at a distance of 0.785983 Astronomical Units, or 117,581,331 kilometers:

NOTE: values for the closest approach are computed with a sampling interval of 1 day.

Comet ATLAS (C/2019 Y4) Brightness and Light Curve

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet ATLAS (C/2019 Y4), 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.

Visualization of Comet ATLAS (C/2019 Y4) Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet ATLAS (C/2019 Y4) with respect of the Sun and the orbits of the major planets. The position of Comet ATLAS (C/2019 Y4) 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 ATLAS (C/2019 Y4) 15 Days Ephemeris

The following table lists the ephemerides of Comet ATLAS (C/2019 Y4) computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet ATLAS (C/2019 Y4) in our Online Planetarium at the chosen date.

Date	Right AscensionR.A.	DeclinationDec.	MagnitudeMag	Constellation
2023 May 26	06h 52m 58s	+09° 20’ 53”	24.52	Monoceros
2023 May 27	06h 53m 15s	+09° 21’ 23”	24.53	Monoceros
2023 May 28	06h 53m 31s	+09° 21’ 51”	24.53	Monoceros
2023 May 29	06h 53m 48s	+09° 22’ 18”	24.54	Monoceros
2023 May 30	06h 54m 05s	+09° 22’ 44”	24.54	Monoceros
2023 May 31	06h 54m 21s	+09° 23’ 08”	24.54	Monoceros
2023 Jun 01	06h 54m 38s	+09° 23’ 31”	24.55	Monoceros
2023 Jun 02	06h 54m 56s	+09° 23’ 53”	24.55	Monoceros
2023 Jun 03	06h 55m 14s	+09° 24’ 14”	24.56	Monoceros
2023 Jun 04	06h 55m 32s	+09° 24’ 33”	24.56	Monoceros
2023 Jun 05	06h 55m 49s	+09° 24’ 51”	24.57	Monoceros
2023 Jun 06	06h 56m 07s	+09° 25’ 08”	24.57	Monoceros
2023 Jun 07	06h 56m 25s	+09° 25’ 23”	24.57	Monoceros
2023 Jun 08	06h 56m 43s	+09° 25’ 37”	24.58	Monoceros