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public LocationGreenwich, UK
Sunrise: 5:14 
Transit: 13:06 
Sunset: 20:58
sunny   (Daytime)   What's Visible Now?
Dwarf Planets and Asteroids » 

Asteroid 1979 XB

Below the horizon.  Rise: 2:25 | Tran: 4:24 | Set: 6:23
Alt: -27.64°   Az: 248.14°   Direction: West-South-West

Asteroid 1979 XB is in the constellation of Sculptor, at a distance of 427,622,495.0 kilometers from Earth. The current Right Ascension is 23h 34m 07s and the Declination is -34° 38’ 25” (apparent coordinates). The magnitude of Asteroid 1979 XB is 24.40 (data provided by JPL Horizons).

Finder chart of 1979 XB in Sculptor on July,24 2024
Map showing Asteroid 1979 XB in Sculptor on July, 24 2024. Field of view: 50x30 degrees
View interactive star map

Celestial Coordinates


23h 34m 07s
-34° 38’ 25”
06h 08m 35s
05h 42m 43s


23h 32m 49s
-34° 46’ 34”

Additional Information


Rise and Set Times

Today's rise, transit and set times of Asteroid 1979 XB from Greenwich, UK (all times relative to the local timezone Europe/London):

Azimuth: 124.6°
Max altitude: 3.9°
Azimuth: 235.4°

If you need to access this information frequently for your observations, you can create a simple customized Quick Access page, so that you can easily bookmark it in your browser favorites or add a shortcut to your mobile phones' home screen.

Finder Charts

Finder chart of 1979 XB
Sky map showing Asteroid 1979 XB in Sculptor on July, 24 2024. Field of view: 10x6 degrees. View in interactive sky chart

High 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: 23h 32m 49s
Dec: -34° 46’ 34”
Deep sky finder chart for Asteroid 1979 XB. Field of view: 60x40 arcmins. View in deep sky object tracker

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.

Distance from Earth

The distance of Asteroid 1979 XB from Earth is currently 427,622,495.0 kilometers, equivalent to 2.8584798233 Astronomical Units. Light takes 23m 46.395s to travel from Asteroid 1979 XB and arrive to us.

23m 46.395s

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.

Chart of the distance of Asteroid 1979 XB from Earth in Astronomical Units (au)

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

Between 1 January 2013 and 30 December 2100, the closest approach of Asteroid 1979 XB to Earth happens on Wed Dec 10 2092 at a distance of 0.062426 Astronomical Units, or 9,338,740 kilometers:

Wed Dec 10 2092

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

Light Curve

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.

Chart of the magnitude of Asteroid 1979 XB as a function of time

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 0.70844951
Orbit inclination i 24.73412122°
Perihelion distance q 0.64959947 AU
97,178,698 km
Aphelion distance Q 3.80657184 AU
569,455,043 km
Semi-major axis a 2.22808566 AU
333,316,871 km
Orbital period period 3.3259 years
1,214.7761 days
Date of perihelion transit Tp 1980-Jan-29 04:00:26
2,444,267.6670 JD
Next perihelion transit 1983-May-27 22:38
2,445,482.4431 JD
Argument of perihelion peri 75.579898280515°
Longitude of the ascending node node 86.055503094738°
Mean anomaly M 346.31837437011°
Mean motion n 0.29635090°/day

Orbit Visualization

Orbit Diagram of Asteroid 1979 XB
View Asteroid 1979 XB in the 3D Solar System Simulator

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. Apparent celestial coordinates are provided.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2024 Jul 17 23h 37m 37s -33° 21’ 54” 24.47 Sculptor
2024 Jul 18 23h 37m 13s -33° 32’ 08” 24.46 Sculptor
2024 Jul 19 23h 36m 48s -33° 42’ 24” 24.45 Sculptor
2024 Jul 20 23h 36m 21s -33° 52’ 42” 24.44 Sculptor
2024 Jul 21 23h 35m 53s -34° 03’ 03” 24.43 Sculptor
2024 Jul 22 23h 35m 24s -34° 13’ 26” 24.42 Sculptor
2024 Jul 23 23h 34m 53s -34° 23’ 50” 24.41 Sculptor
2024 Jul 24 23h 34m 20s -34° 34’ 16” 24.40 Sculptor
2024 Jul 25 23h 33m 47s -34° 44’ 43” 24.39 Sculptor
2024 Jul 26 23h 33m 12s -34° 55’ 09” 24.38 Sculptor
2024 Jul 27 23h 32m 35s -35° 05’ 36” 24.37 Sculptor
2024 Jul 28 23h 31m 57s -35° 16’ 01” 24.36 Sculptor
2024 Jul 29 23h 31m 17s -35° 26’ 26” 24.35 Sculptor
2024 Jul 30 23h 30m 36s -35° 36’ 50” 24.34 Sculptor

Additional Resources