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Asteroid Near-Earth

2019 BS2

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(2019 BS2)

Where is it now

Distance from Sun
0.973 AU
True anomaly
158.73°
Distance from Earth
1.158 AU
As of
16 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 — 0.997 AU from the Sun Earth 2019 BS2 — 0.973 AU from the Sun 2019 BS2
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2019 BS2 is 1.158 AU from Earth today (9.6 light-minutes).

In the sky

Right ascension
10h 22m 20s
Declination
+18° 01′ 14″
Constellation
Leo
Distance from Earth
1.16 AU
Elongation from the Sun
53.13° — near the Sun — look low at dusk or dawn

Favours the northern hemisphere; low or below the horizon from far south.

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
0.752 AU
Eccentricity
0.3396
Inclination
16.45°
Orbital period
238.3 days
Perihelion
0.497 AU
Aphelion
1.008 AU
Longitude of ascending node
306.57°
Argument of periapsis
348.75°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 4.7 LD
0.0122 AU
Tisserand (Jupiter)
7.604

Orbit quality

Orbit poorly determined (uncertainty code 7).

Observations used
26
Data arc
24 hours
First observed
26 January 2019
Last observed
27 January 2019
Residual RMS
0.54 ″
Solution · Otto Matic
15 April 2021

Visual & observation

Absolute magnitude (H)
27.3

Discovery & classification

Aten Near-Earth Object

Close approaches 65 on record

Flyby geometry
Ecliptic flyby of 2019 BS2 at 2030-01-04 11:55 UTC Top-down view of the ecliptic, Earth at the centre, for the 2030-01-04 11:55 UTC close approach of 2019 BS2. Catalogue miss distance 159.7 LD · 6.14 × 10⁷ km. The curve is the geocentric path from 2030-01-01 to 2030-01-07, 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 north of the ecliptic. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate. Sun 159.7 LD · 6.14 × 10⁷ km 2030-01-04 11:55 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2030-01-04 11:55 UTC close approach of 2019 BS2. Catalogue miss distance 159.7 LD · 6.14 × 10⁷ km. The curve is the geocentric path from 2030-01-01 to 2030-01-07, 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 north 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
2030-01-04 11:55:00 Earth 0.4103 AU 159.7 LD 19.7 km/s
2030-05-24 08:07:00 Earth 0.4972 AU 193.5 LD 16 km/s
2031-02-02 14:21:00 Mercury 0.0819 AU 31.9 LD 18.2 km/s
2031-02-02 14:21:00 Merc 0.0819 AU 31.9 LD 18.2 km/s
2032-01-06 00:01:00 Earth 0.2005 AU 78.0 LD 12.3 km/s
2034-01-25 10:25:00 Earth 0.0266 AU 10.3 LD 9.9 km/s
2036-02-03 09:32:00 Earth 0.1798 AU 70.0 LD 14.2 km/s
2037-09-05 07:32:00 Earth 0.4807 AU 187.1 LD 18.1 km/s
2038-01-29 03:35:00 Earth 0.4075 AU 158.6 LD 21.5 km/s
2045-01-06 10:11:00 Earth 0.4883 AU 190.0 LD 22.5 km/s

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

Sources