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🌎  Observing from: Greenwich, United Kingdom [change]

Asteroid (NEO) 2017 SA20

Asteroid (NEO) 2017 SA20 is a Near Earth Object. If you've heard news about a potential impact of this asteroid with the Earth, please check out Will Asteroid Asteroid (NEO) 2017 SA20 Impact Earth?.

Asteroid (NEO) 2017 SA20 is currently in the constellation of Scorpius. The current Right Ascension of Asteroid (NEO) 2017 SA20 is 16h 04m 22s and the Declination is -20° 43’ 05” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current magnitude of Asteroid (NEO) 2017 SA20 is 30.53 (JPL).

Summary of key facts about Asteroid (NEO) 2017 SA20 [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]:

16h 04m 22s
-20° 43’ 05”
  • 2017 SA20 is above the horizon from Greenwich, United Kingdom [change].
  • It is visible looking in the South-South-West direction at an altitude of 12° above the horizon.
  • Given its current magnitude, 2017 SA20 is visible only through long exposure photography.
  • See also 2017 SA20 rise and set times.
  • Go to interactive sky chart

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.

Additional information about Asteroid (NEO) 2017 SA20 available on TheSkyLive:

Available Resources

Asteroid (NEO) 2017 SA20 Position and Finder Charts

Below we provide Asteroid (NEO) 2017 SA20 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 (NEO) 2017 SA20 in Scorpius on January, 29 2023
Field of view: 50x30 degrees
View fullscreen
Map showing Asteroid (NEO) 2017 SA20 in Scorpius on January, 29 2023
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]

Also check out Where is Asteroid (NEO) 2017 SA20?, a page that provides all the information needed to find Asteroid (NEO) 2017 SA20 in the sky and additional links to sky charts.

Asteroid (NEO) 2017 SA20 Distance from Earth

The distance of Asteroid (NEO) 2017 SA20 from Earth is currently 151,272,304 kilometers, equivalent to 1.011193 Astronomical Units. Light takes 8 minutes and 24.5901 seconds to travel from Asteroid (NEO) 2017 SA20 and arrive to us.

8 minutes and 24.5901 seconds

The following chart shows the distance of Asteroid (NEO) 2017 SA20 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 (NEO) 2017 SA20 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.

Closest approach of Asteroid (NEO) 2017 SA20 to Earth

During the next 10 years, the closest approach of Asteroid (NEO) 2017 SA20 to Earth happens on Fri Apr 19 2024 at a distance of 0.009788 Astronomical Units, or 1,464,211 kilometers:

Fri Apr 19 2024

Asteroid (NEO) 2017 SA20 brightness

The current visual magnitude of Asteroid (NEO) 2017 SA20 is 30.53.


The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid (NEO) 2017 SA20, 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 (NEO) 2017 SA20 between January 2013 and December 2100

Asteroid (NEO) 2017 SA20 rise and set times

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

Today's Asteroid (NEO) 2017 SA20 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 110.7°
Max altitude: 17.8°
Azimuth: 249.3°

The rise and set times are defined as the time at which the upper limb of Asteroid (NEO) 2017 SA20 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 (NEO) 2017 SA20 Orbital Elements

The following table lists the orbital elements of Asteroid (NEO) 2017 SA20 at epoch 08 August 2022 00:00 UTC (JD: 2459800.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.19188442
Orbit inclination i 0.12869374°
Perihelion distance q 0.88893520 AU
132,982,814 km
Aphelion distance Q 1.31108476 AU
196,135,489 km
Semi-major axis a 1.10000998 AU
164,559,151 km
Orbital period period 1.1537 years
421.3989 days
Date of perihelion transit Tp 2022-Mar-01 10:14:23
2,459,639.9267 JD
Next perihelion transit 2023-Apr-26 19:48
2,460,061.3255 JD
Argument of perihelion peri 248.8748982868°
Longitude of the ascending node node 35.058458995908°
Mean anomaly M 137.17739935855°
Mean motion n 0.85429750°/day

Visualization of Asteroid (NEO) 2017 SA20 Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Asteroid (NEO) 2017 SA20 with respect of the Sun and the orbits of the major planets. The position of Asteroid (NEO) 2017 SA20 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 (NEO) 2017 SA20
View Asteroid (NEO) 2017 SA20 in the 3D Solar System Simulator

Asteroid (NEO) 2017 SA20 15 Days Ephemeris

The following table lists the ephemerides of Asteroid (NEO) 2017 SA20 computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Asteroid (NEO) 2017 SA20 in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2023 Jan 22 15h 31m 44s -19° 00’ 09” 30.60 Libra
2023 Jan 23 15h 36m 02s -19° 15’ 06” 30.59 Libra
2023 Jan 24 15h 40m 23s -19° 29’ 44” 30.58 Libra
2023 Jan 25 15h 44m 44s -19° 44’ 03” 30.57 Libra
2023 Jan 26 15h 49m 09s -19° 58’ 03” 30.56 Libra
2023 Jan 27 15h 53m 35s -20° 11’ 40” 30.55 Libra
2023 Jan 28 15h 58m 02s -20° 24’ 56” 30.54 Scorpius
2023 Jan 29 16h 02m 33s -20° 37’ 51” 30.53 Scorpius
2023 Jan 30 16h 07m 05s -20° 50’ 22” 30.52 Scorpius
2023 Jan 31 16h 11m 39s -21° 02’ 30” 30.52 Scorpius
2023 Feb 01 16h 16m 14s -21° 14’ 13” 30.51 Scorpius
2023 Feb 02 16h 20m 53s -21° 25’ 32” 30.50 Scorpius
2023 Feb 03 16h 25m 32s -21° 36’ 24” 30.49 Ophiucus
2023 Feb 04 16h 30m 14s -21° 46’ 50” 30.48 Ophiucus