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Asteroid Near-Earth

2017 BO30

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(2017 BO30)

Where is it now

Distance from Sun
1.142 AU
True anomaly
181.05°
Distance from Earth
1.299 AU
As of
21 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 2017 BO30 — 1.142 AU from the Sun 2017 BO30
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2017 BO30 is 1.299 AU from Earth today (10.8 light-minutes).

In the sky

Right ascension
10h 01m 40s
Declination
+03° 08′ 58″
Constellation
Sextans
Distance from Earth
1.3 AU
Elongation from the Sun
58.03° — 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
0.927 AU
Eccentricity
0.2313
Inclination
25.07°
Orbital period
326.2 days
Perihelion
0.713 AU
Aphelion
1.142 AU
Longitude of ascending node
124.07°
Argument of periapsis
155.52°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 46.8 LD
0.1203 AU
Tisserand (Jupiter)
6.355

Orbit quality

Orbit poorly determined (uncertainty code 7).

Observations used
21
Data arc
4 days
First observed
28 January 2017
Last observed
1 February 2017
Residual RMS
0.47 ″
Solution · Otto Matic
15 April 2021

Visual & observation

Absolute magnitude (H)
23.9

Discovery & classification

Aten Near-Earth Object

Close approaches 35 on record

Flyby geometry
Ecliptic flyby of 2017 BO30 at 2032-09-20 06:44 UTC Top-down view of the ecliptic, Earth at the centre, for the 2032-09-20 06:44 UTC close approach of 2017 BO30. Catalogue miss distance 149.0 LD · 5.73 × 10⁷ km. The curve is the geocentric path from 2032-09-17 to 2032-09-23, 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 149.0 LD · 5.73 × 10⁷ km 2032-09-20 06:44 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2032-09-20 06:44 UTC close approach of 2017 BO30. Catalogue miss distance 149.0 LD · 5.73 × 10⁷ km. The curve is the geocentric path from 2032-09-17 to 2032-09-23, 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
2027-04-17 19:57:00 Venus 0.0353 AU 13.7 LD 15.8 km/s
2032-09-20 06:44:00 Earth 0.383 AU 149.0 LD 16.7 km/s
2032-12-27 04:59:00 Earth 0.3831 AU 149.1 LD 13.9 km/s
2033-07-10 23:04:00 Earth 0.3211 AU 125.0 LD 17.3 km/s
2034-02-01 13:02:00 Earth 0.1458 AU 56.7 LD 14.3 km/s
2037-02-14 15:50:00 Venus 0.0503 AU 19.6 LD 14.9 km/s
2041-08-06 15:52:00 Earth 0.2845 AU 110.7 LD 17.2 km/s
2042-01-23 05:00:00 Earth 0.1621 AU 63.1 LD 13.1 km/s
2042-05-18 17:50:00 Earth 0.4384 AU 170.6 LD 12.9 km/s
2043-02-01 23:48:00 Earth 0.4497 AU 175.0 LD 22 km/s

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

Sources