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Asteroid Near-Earth

2020 GB

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(2020 GB)

Where is it now

Distance from Sun
0.672 AU
True anomaly
317.23°
Distance from Earth
1.432 AU
As of
22 October 2026

Two-body Kepler propagation — accurate to ~0.1% for major planets over decades, less so for highly-perturbed bodies. Use JPL Horizons for high precision.

Sun Earth — 0.995 AU from the Sun Earth 2020 GB — 0.672 AU from the Sun 2020 GB
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2020 GB is 1.432 AU from Earth today (11.9 light-minutes).

In the sky

Right ascension
15h 29m 34s
Declination
-15° 57′ 33″
Constellation
Libra
Distance from Earth
1.43 AU
Elongation from the Sun
24.72° — near the Sun — look low at dusk or dawn

Favours the southern hemisphere; low or below the horizon from far north.

From your location

See how high it is right now, whether it is up after civil twilight, and when it rises and sets where you are.

How do I find my coordinates?

Google Maps on a computer

  1. Right-click the spot where you'll be observing.
  2. The first line of the menu is the coordinates, e.g. 51.50722, -0.12758 — click it and they're copied.
  3. Paste them above.

Google Maps on a phone

  1. Press and hold the spot to drop a pin.
  2. The coordinates appear in the search bar (or on the pin's card) — tap to copy, then paste above.

A full Google Maps link works too, but the short maps.app.goo.gl share links don't carry coordinates — copy the numbers instead. We round to about a kilometre; that's all the sky calculation needs.

Know your what3words address? Paste it, e.g. ///filled.count.soap. This is optional — the three words are sent to what3words to convert them, and we don't store the address or the result.

Your location stays in your browser and is sent only for this calculation. Using a what3words address is optional; if you do, the three words go to what3words to be converted and we don't record them. Set a location first, then you can save an email alert for this object. See our privacy policy.

Two-body approximation, good to about a degree for the planets — enough to find the constellation and know whether it is up.

Orbital elements

Semi-major axis
0.941 AU
Eccentricity
0.3333
Inclination
6.31°
Orbital period
333.3 days
Perihelion
0.627 AU
Aphelion
1.255 AU
Longitude of ascending node
192.67°
Argument of periapsis
122.22°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 2.0 LD
0.0051 AU
Tisserand (Jupiter)
6.327

Orbit quality

Orbit poorly determined (uncertainty code 6).

Observations used
90
Data arc
12 days
First observed
24 March 2020
Last observed
5 April 2020
Residual RMS
0.59 ″
Solution · Otto Matic
15 April 2021

Visual & observation

Absolute magnitude (H)
25.7

Discovery & classification

Aten Near-Earth Object

Close approaches 124 on record

Flyby geometry
Ecliptic flyby of 2020 GB at 2027-12-13 11:16 UTC Top-down view of the ecliptic, Earth at the centre, for the 2027-12-13 11:16 UTC close approach of 2020 GB. Catalogue miss distance 120.7 LD · 4.64 × 10⁷ km. The curve is the geocentric path from 2027-12-10 to 2027-12-16, with a mark at UTC midnights and an arrow for the direction of motion. The circle is the Moon’s mean orbit; the Moon is plotted at closest approach. A ray shows the Sun’s direction. The labelled distance is the full separation. The drawn radius is the part that lies in the ecliptic plane. At closest approach the object is south of the ecliptic. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate. Sun 120.7 LD · 4.64 × 10⁷ km 2027-12-13 11:16 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2027-12-13 11:16 UTC close approach of 2020 GB. Catalogue miss distance 120.7 LD · 4.64 × 10⁷ km. The curve is the geocentric path from 2027-12-10 to 2027-12-16, with a mark at UTC midnights and an arrow for the direction of motion. The circle is the Moon’s mean orbit; the Moon is plotted at closest approach. A ray shows the Sun’s direction. The labelled distance is the full separation. The drawn radius is the part that lies in the ecliptic plane. At closest approach the object is south of the ecliptic. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate.

JPL Horizons

When (UTC) Body Distance Lunar distances Relative speed
2027-12-13 11:16:00 Earth 0.3101 AU 120.7 LD 19.7 km/s
2028-10-22 09:05:00 Earth 0.2541 AU 98.9 LD 7.6 km/s
2028-12-27 14:26:00 Earth 0.2343 AU 91.2 LD 7.4 km/s
2029-08-06 04:31:00 Earth 0.3942 AU 153.4 LD 14.2 km/s
2030-03-12 11:18:00 Earth 0.2155 AU 83.9 LD 7.8 km/s
2031-03-27 16:04:00 Earth 0.2771 AU 107.9 LD 19.1 km/s
2038-12-01 07:33:00 Earth 0.0912 AU 35.5 LD 10.6 km/s
2039-09-05 22:24:00 Earth 0.3656 AU 142.3 LD 13.1 km/s
2039-09-23 06:56:00 Venus 0.0862 AU 33.5 LD 15.2 km/s
2040-02-07 13:36:00 Earth 0.2879 AU 112.0 LD 8.6 km/s

Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.

Sources