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Asteroid Near-Earth

2009 BO58

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(2009 BO58)

Where is it now

Distance from Sun
1.212 AU
True anomaly
181.94°
Distance from Earth
2.004 AU
As of
19 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 2009 BO58 — 1.212 AU from the Sun 2009 BO58
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2009 BO58 is 2.004 AU from Earth today (16.7 light-minutes).

In the sky

Right ascension
12h 12m 17s
Declination
+06° 59′ 51″
Constellation
Virgo
Distance from Earth
2 AU
Elongation from the Sun
27.58° — near the Sun — look low at dusk or dawn

Visible from both hemispheres.

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
0.836 AU
Eccentricity
0.4498
Inclination
26.25°
Orbital period
279.4 days
Perihelion
0.46 AU
Aphelion
1.213 AU
Longitude of ascending node
130.69°
Argument of periapsis
207.71°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 35.5 LD
0.0913 AU
Tisserand (Jupiter)
6.864

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
153
Data arc
16.07 years
First observed
29 January 2009
Last observed
22 February 2025
Residual RMS
0.56 ″
Solution · Otto Matic
23 February 2025

Visual & observation

Absolute magnitude (H)
21.87

Discovery & classification

Aten Near-Earth Object

Close approaches 87 on record

Flyby geometry
Ecliptic flyby of 2009 BO58 at 2035-01-27 22:21 UTC Top-down view of the ecliptic, Earth at the centre, for the 2035-01-27 22:21 UTC close approach of 2009 BO58. Catalogue miss distance 57.6 LD · 2.22 × 10⁷ km. The curve is the geocentric path from 2035-01-24 to 2035-01-30, 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 57.6 LD · 2.22 × 10⁷ km 2035-01-27 22:21 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2035-01-27 22:21 UTC close approach of 2009 BO58. Catalogue miss distance 57.6 LD · 2.22 × 10⁷ km. The curve is the geocentric path from 2035-01-24 to 2035-01-30, 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
2035-01-27 22:21:00 Earth 0.1481 AU 57.6 LD 15.2 km/s
2037-11-13 21:44:00 Mercury 0.0922 AU 35.9 LD 23.6 km/s
2037-11-13 21:44:00 Merc 0.0922 AU 35.9 LD 23.6 km/s
2042-06-15 13:19:00 Merc 0.0847 AU 33.0 LD 25.4 km/s
2042-06-15 13:19:00 Mercury 0.0847 AU 33.0 LD 25.4 km/s
2048-01-27 15:32:00 Earth 0.1399 AU 54.5 LD 15.3 km/s
2055-06-17 03:03:00 Merc 0.0623 AU 24.2 LD 24.1 km/s
2055-06-17 03:03:00 Mercury 0.0623 AU 24.2 LD 24.1 km/s
2061-01-26 15:47:00 Earth 0.1356 AU 52.8 LD 15.4 km/s
2068-06-17 12:15:00 Merc 0.0609 AU 23.7 LD 23.4 km/s

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

Sources