Asteroid 99942 Apophis
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 ). The current magnitude of Asteroid 99942 Apophis is 21.53 (JPL).
- 99942 Apophis is above the horizon from Greenwich, United Kingdom .
- Right now it is placed in the South-South-East direction at an altitude of 21° above the horizon.
- Given its current magnitude, 99942 Apophis is visible only through long exposure photography.
- Go to interactive sky chart
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Asteroid 99942 Apophis Position and Finder Charts
Below we provide Asteroid 99942 Apophis 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 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.
Asteroid 99942 Apophis Orbital Elements
|Perihelion distance||q||0.74609298 AU
|Date of perihelion transit||Tp||2023-May-07 12:43:49
|Next perihelion transit||2024-Mar-26 06:34
|Argument of perihelion||peri||126.6058613939°|
|Longitude of the ascending node||node||203.95751533107°|
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 Physical Data
The following shows the known values of the most important physical parameters of Asteroid 99942 Apophis. Source: JPL Small-Body Database
|Physical Parameter||Value||Relative to Earth|
|Sideral Rotation||30.4000 hours||1.2701|
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.
|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|