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🌎 Location: Greenwich, United Kingdom [change]

Asteroid 1979 XB

Asteroid 1979 XB is currently in the constellation of Sagittarius. The current Right Ascension of Asteroid 1979 XB is 20h 04m 35s and the Declination is -39° 49’ 06” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current magnitude of Asteroid 1979 XB is 24.50 (JPL).

Summary of key facts about Asteroid 1979 XB [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]:

20h 04m 35s
-39° 49’ 06”

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Additional information about Asteroid 1979 XB available on TheSkyLive:

Available Resources

Asteroid 1979 XB Position and Finder Charts

Below we provide Asteroid 1979 XB 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.

Map showing Asteroid 1979 XB in Sagittarius on October, 29 2020
Field of view: 50x30 degrees
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Map showing Asteroid 1979 XB in Sagittarius on October, 29 2020
Field of view: 10x6 degrees
View fullscreen
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Higher precision deep sky finder chart, 60 arcmin wide, showing where Asteroid 1979 XB is right now. Click on the image to see a more detailed fullscreen tracker view.

1979 XB
RA: 20h 04m 35s
Dec: -39° 49’ 06”
Deep sky finder chart for Asteroid 1979 XB
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Asteroid 1979 XB?, a page that provides all the information needed to find Asteroid 1979 XB in the sky and additional links to sky charts.

Asteroid 1979 XB Distance from Earth

The distance of Asteroid 1979 XB from Earth is currently 470,267,275 kilometers, equivalent to 3.143543 Astronomical Units. Light takes 26 minutes and 8.6428 seconds to travel from Asteroid 1979 XB and arrive to us.

26 minutes and 8.6428 seconds

The following chart shows the distance of Asteroid 1979 XB 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.

Distance of Asteroid 1979 XB from Earth between January 2013 and December 2100

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 1979 XB from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Asteroid 1979 XB to Earth

Between January 2013 and December 2100, the closest approach of Asteroid 1979 XB to Earth happens on Thu Dec 11 2092 at a distance of 0.055860 Astronomical Units, or 8,356,590 kilometers:

Thu Dec 11 2092

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

Asteroid 1979 XB brightness

The current visual magnitude of Asteroid 1979 XB is 24.50.


The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid 1979 XB, 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 1979 XB between January 2013 and December 2100

Asteroid 1979 XB rise and set times

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Asteroid 1979 XB is currently not visible from Greenwich, United Kingdom [change]

The rise and set times are defined as the time at which the upper limb of Asteroid 1979 XB 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.

Asteroid 1979 XB Orbital Elements

The following table lists the orbital elements of Asteroid 1979 XB at epoch 13 December 1979 00:00 UTC (JD: 2444221.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.70845722
Orbit inclination i 24.73433191°
Perihelion distance q 0.64959796 AU
97,178,472 km
Aphelion distance Q 3.80668093 AU
569,471,363 km
Semi-major axis a 2.22813945 AU
333,324,917 km
Orbital period period 3.3300 years
1,214.8201 days
Date of perihelion transit Tp 1980-Jan-29 04:00:07
2,444,267.6668 JD
Next perihelion transit 1983-May-27 23:41
2,445,482.4869 JD
Argument of perihelion peri 75.579803835661°
Longitude of the ascending node node 86.05548731493°
Mean anomaly M 346.31893672471°
Mean motion n 0.29634017°/day

Visualization of Asteroid 1979 XB Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Asteroid 1979 XB with respect of the Sun and the orbits of the major planets. The position of Asteroid 1979 XB 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 1979 XB
View Asteroid 1979 XB in the 3D Solar System Simulator

Asteroid 1979 XB 15 Days Ephemeris

The following table lists the ephemerides of Asteroid 1979 XB computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Asteroid 1979 XB in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2020 Oct 22 19h 58m 36s -40° 31’ 50” 24.40 Sagittarius
2020 Oct 23 19h 59m 22s -40° 25’ 55” 24.41 Sagittarius
2020 Oct 24 20h 00m 11s -40° 20’ 02” 24.43 Sagittarius
2020 Oct 25 20h 01m 00s -40° 14’ 08” 24.44 Sagittarius
2020 Oct 26 20h 01m 49s -40° 08’ 13” 24.46 Sagittarius
2020 Oct 27 20h 02m 39s -40° 02’ 20” 24.47 Sagittarius
2020 Oct 28 20h 03m 30s -39° 56’ 25” 24.48 Sagittarius
2020 Oct 29 20h 04m 23s -39° 50’ 30” 24.50 Sagittarius
2020 Oct 30 20h 05m 16s -39° 44’ 35” 24.51 Sagittarius
2020 Oct 31 20h 06m 10s -39° 38’ 40” 24.52 Sagittarius
2020 Nov 01 20h 07m 04s -39° 32’ 45” 24.54 Sagittarius
2020 Nov 02 20h 07m 59s -39° 26’ 50” 24.55 Sagittarius
2020 Nov 03 20h 08m 56s -39° 20’ 56” 24.56 Sagittarius
2020 Nov 04 20h 09m 51s -39° 15’ 00” 24.58 Sagittarius