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Asteroid 2018 AJ

Available Resources

Asteroid 2018 AJ Sky Charts and Coordinates

This is a simplified sky chart, showing where Asteroid 2018 AJ is now with respect to the brightest stars and constellations.

More advanced sky charts are available on TheSkyLive for this object: 1) the Online Planetarium which is interactive and allows to select dates and additional objects to visualize; and 2) the Live Position and Data Tracker which provides the highest precision position data and features deep sky imagery from the Digitized Sky Survey.

Asteroid 2018 AJ in Sagittarius on December, 11 2018
High Precision Live Sky Chart
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]
20h 03m 50s
-19° 15’ 56”
28.83

Asteroid 2018 AJ Rise and Set Times

Today's Asteroid 2018 AJ rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the Europe/London timezone.

Azimuth: 109.3°
Max altitude: 19.2°
Azimuth: 250.7°

Asteroid 2018 AJ Orbit Diagram

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Asteroid 2018 AJ with respect of the Sun and the orbits of the major planets. The position of Asteroid 2018 AJ 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!

Orbit Diagram of Asteroid 2018 AJ
View Asteroid 2018 AJ in the 3D Solar System Simulator

Asteroid 2018 AJ Ephemeris

The following table lists the ephemerides of Asteroid 2018 AJ computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Asteroid 2018 AJ in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2018 Dec 04 19h 46m 24s -20° 13’ 40” 28.83 Sagittarius
2018 Dec 05 19h 48m 38s -20° 06’ 42” 28.83 Sagittarius
2018 Dec 06 19h 50m 49s -19° 59’ 39” 28.83 Sagittarius
2018 Dec 07 19h 53m 03s -19° 52’ 31” 28.83 Sagittarius
2018 Dec 08 19h 55m 14s -19° 45’ 15” 28.83 Sagittarius
2018 Dec 09 19h 57m 26s -19° 37’ 53” 28.83 Sagittarius
2018 Dec 10 19h 59m 39s -19° 30’ 24” 28.83 Sagittarius
2018 Dec 11 20h 01m 51s -19° 22’ 50” 28.83 Sagittarius
2018 Dec 12 20h 04m 04s -19° 15’ 10” 28.83 Sagittarius
2018 Dec 13 20h 06m 15s -19° 07’ 23” 28.83 Sagittarius
2018 Dec 14 20h 08m 27s -18° 59’ 29” 28.83 Capricornus
2018 Dec 15 20h 10m 40s -18° 51’ 29” 28.83 Capricornus
2018 Dec 16 20h 12m 51s -18° 43’ 23” 28.83 Capricornus
2018 Dec 17 20h 15m 03s -18° 35’ 12” 28.83 Capricornus

Distance of Asteroid 2018 AJ from Earth

The following chart shows the distance of Asteroid 2018 AJ from Earth as a function of time. Distance data is measured in Astronomical Units and sampled with a 2 days interval.

The reported distances might be inaccurate around the times of closest approach for objects passing extremely close to Earth. The value of the distance of 2018 AJ is also available as a real time updated value in the Live Position and Data Tracker.

Distance of Asteroid 2018 AJ from Earth between January 2013 and December 2075

Light Curve of Asteroid 2018 AJ

The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid 2018 AJ, 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.

Predicted magnitude of Asteroid 2018 AJ between January 2013 and December 2075

Asteroid 2018 AJ Orbital Elements

The following table lists the orbital elements of Asteroid 2018 AJ at epoch 26 April 2019 00:00 UTC (JD: 2458600.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.30627933
Orbit inclination i 5.66787807°
Perihelion distance q 0.98551461 AU
147,430,888 km
Aphelion distance Q 1.85572873 AU
277,613,067 km
Semi-major axis a 1.42062167 AU
212,521,977 km
Orbital period period 1.6900 years
618.4664 days
Date of perihelion transit Tp 2019-Oct-17 09:04:35
2,458,773.8782 JD
Argument of perihelion peri 195.34514473915°
Longitude of the ascending node node 303.61556664151°
Mean anomaly M 259.07915321489°
Mean motion n 0.58208502°/day
Closest approach to Earth* 2018-Jan-24
Distance of closest approach* 0.01203512 AU
1,800,428 km

* NOTE: values for the closest approach are computed for the time interval between 2013-Jan-01 and 2075-Dec-31, with a sampling interval of 1 day.