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Asteroid Near-Earth Potentially hazardous

453563

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453563 (2010 BB)

Where is it now

Distance from Sun
0.643 AU
True anomaly
309.78°
Distance from Earth
1.466 AU
As of
17 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 — 0.996 AU from the Sun Earth 453563 — 0.643 AU from the Sun 453563
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 453563 is 1.466 AU from Earth today (12.2 light-minutes).

In the sky

Right ascension
14h 54m 03s
Declination
-18° 07′ 44″
Constellation
Libra
Distance from Earth
1.46 AU
Elongation from the Sun
21.18° — 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
0.82 AU
Eccentricity
0.2776
Inclination
10.02°
Orbital period
271.3 days
Perihelion
0.592 AU
Aphelion
1.048 AU
Longitude of ascending node
279.68°
Argument of periapsis
29.03°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 4.2 LD
0.0109 AU
Tisserand (Jupiter)
7.096

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
305
Data arc
14.87 years
First observed
16 January 2010
Last observed
29 November 2024
Residual RMS
0.38 ″
Solution · Otto Matic
16 June 2026

Visual & observation

Absolute magnitude (H)
20.22

Discovery & classification

Discovered by
Mt. Lemmon Survey
Discovery date
16 January 2010
Discovery site
Mount Lemmon

Also known as 2010 BB

Aten Near-Earth Object Potentially Hazardous Asteroid

Close approaches 77 on record

Flyby geometry
Ecliptic flyby of 453563 at 2035-12-27 17:33 UTC Top-down view of the ecliptic, Earth at the centre, for the 2035-12-27 17:33 UTC close approach of 453563. Catalogue miss distance 76.7 LD · 2.95 × 10⁷ km. The curve is the geocentric path from 2035-12-24 to 2035-12-30, 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. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate. Sun 76.7 LD · 2.95 × 10⁷ km 2035-12-27 17:33 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2035-12-27 17:33 UTC close approach of 453563. Catalogue miss distance 76.7 LD · 2.95 × 10⁷ km. The curve is the geocentric path from 2035-12-24 to 2035-12-30, 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. 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
2032-09-20 13:35:00 Venus 0.0909 AU 35.4 LD 12.4 km/s
2035-12-27 17:33:00 Earth 0.197 AU 76.7 LD 13.8 km/s
2036-06-22 04:14:00 Venus 0.1325 AU 51.6 LD 11.9 km/s
2038-12-27 08:47:00 Earth 0.0313 AU 12.2 LD 8.9 km/s
2042-01-13 02:48:00 Earth 0.0841 AU 32.7 LD 7.1 km/s
2045-02-14 16:26:00 Earth 0.1426 AU 55.5 LD 7.5 km/s
2050-07-24 08:10:00 Venus 0.0905 AU 35.2 LD 12.5 km/s
2054-04-28 18:09:00 Venus 0.14 AU 54.5 LD 11.9 km/s
2064-12-26 06:48:00 Earth 0.1575 AU 61.3 LD 12.6 km/s
2067-12-28 13:00:00 Earth 0.0158 AU 6.1 LD 8.5 km/s

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

Sources