Asteroid 99942 Apophis

Asteroid 99942 Apophis is currently in the constellation of Libra.

The current Right Ascension of Asteroid 99942 Apophis is 14h 43m 29s and the Declination is -16° 14’ 22” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom edit_location_alt). The current magnitude of Asteroid 99942 Apophis is 21.53 (JPL).

Today's rise, transit and set times of Asteroid 99942 Apophis 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 Asteroid 99942 Apophis?)
• Distance from Earth (see also How far is Asteroid 99942 Apophis from Earth?)
• When does Asteroid 99942 Apophis rise and set?
• Brightness (see also How bright is Asteroid 99942 Apophis?)
• Orbital elements. Detailed information about Asteroid 99942 Apophis orbital parameters.
• Interactive orbit visualization. 3d visualization showing the orbit of Asteroid 99942 Apophis with respect to the major Solar System objects.
• Physical data. Detailed information about physical properties of Asteroid 99942 Apophis, such as mass and geometric properties.
• 15 days ephemerides. Table showing celestial coordinates and magnitude of Asteroid 99942 Apophis for the past and next 7 days.
• Interactive sky chart. An online planetarium application that shows where to locate Asteroid 99942 Apophis in the sky from your location.
• Live position tracker. A high precision sky chart that uses real deep sky imagery to help locate Asteroid 99942 Apophis with your telescope or on your astrophotographies.

Higher precision deep sky finder chart, 60 arcmin wide, showing where Asteroid 99942 Apophis is right now. Click on the image to see a more detailed fullscreen tracker view.

Also check out Where is Asteroid 99942 Apophis?, a page that provides all the information needed to find Asteroid 99942 Apophis in the sky and additional links to sky charts.

Asteroid 99942 Apophis Distance from Earth

The distance of Asteroid 99942 Apophis from Earth is currently 258,185,853 kilometers, equivalent to 1.725866 Astronomical Units. Light takes 14 minutes and 21.2153 seconds to travel from Asteroid 99942 Apophis and arrive to us.

The following chart shows the distance of Asteroid 99942 Apophis 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 99942 Apophis from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest Approach of Asteroid 99942 Apophis to Earth

Between 1 January 2013 and 30 December 2100, the closest approach of Asteroid 99942 Apophis to Earth happens on Sat Apr 14 2029 at a distance of 0.000438 Astronomical Units, or 65,520 kilometers:

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

Asteroid 99942 Apophis Brightness and Light Curve

The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid 99942 Apophis, 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 Asteroid 99942 Apophis Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Asteroid 99942 Apophis with respect of the Sun and the orbits of the major planets. The position of Asteroid 99942 Apophis 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!

Asteroid 99942 Apophis 15 Days Ephemeris

The following table lists the ephemerides of Asteroid 99942 Apophis computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Asteroid 99942 Apophis in our Online Planetarium at the chosen date.

Date	Right AscensionR.A.	DeclinationDec.	MagnitudeMag	Constellation
2023 Dec 01	14h 15m 19s	-14° 11’ 54”	21.57	Virgo
2023 Dec 02	14h 19m 04s	-14° 29’ 08”	21.56	Virgo
2023 Dec 03	14h 22m 50s	-14° 46’ 10”	21.56	Libra
2023 Dec 04	14h 26m 39s	-15° 03’ 02”	21.55	Libra
2023 Dec 05	14h 30m 29s	-15° 19’ 42”	21.55	Libra
2023 Dec 06	14h 34m 19s	-15° 36’ 11”	21.54	Libra
2023 Dec 07	14h 38m 12s	-15° 52’ 28”	21.53	Libra
2023 Dec 08	14h 42m 05s	-16° 08’ 34”	21.53	Libra
2023 Dec 09	14h 46m 00s	-16° 24’ 25”	21.52	Libra
2023 Dec 10	14h 49m 56s	-16° 40’ 05”	21.52	Libra
2023 Dec 11	14h 53m 53s	-16° 55’ 28”	21.51	Libra
2023 Dec 12	14h 57m 53s	-17° 10’ 40”	21.50	Libra
2023 Dec 13	15h 01m 54s	-17° 25’ 36”	21.49	Libra
2023 Dec 14	15h 05m 57s	-17° 40’ 15”	21.49	Libra