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Solar
Asteroid Near-Earth

2023 BK17

(2023 BK17)

Where is it now

Distance from Sun
0.382 AU
True anomaly
253.92°
Distance from Earth
1.37 AU
As of
2 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 — 1.001 AU from the Sun Earth 2023 BK17 — 0.382 AU from the Sun 2023 BK17
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2023 BK17 is 1.37 AU from Earth today (11.4 light-minutes).

In the sky

Right ascension
12h 57m 48s
Declination
-04° 58′ 53″
Constellation
Virgo
Distance from Earth
1.35 AU
Elongation from the Sun
5.15° — too close to the Sun to observe

Visible from both hemispheres.

From your location

See how high it is right now, whether it's up after dark, 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
0.621 AU
Eccentricity
0.7119
Inclination
4.57°
Orbital period
178.9 days
Perihelion
0.179 AU
Aphelion
1.064 AU
Longitude of ascending node
91.64°
Argument of periapsis
220.85°
Epoch · J2000
2459973.5
Orbit class · ATE
Aten
Earth MOID · 13.3 LD
0.0342 AU
Tisserand (Jupiter)
8.858

Orbit quality

Orbit very uncertain — the object may be effectively lost (uncertainty code 9).

Observations used
10
Data arc
24 hours
First observed
29 January 2023
Last observed
30 January 2023
Residual RMS
0.3 ″
Solution · Otto Matic
20 December 2023

Visual & observation

Absolute magnitude (H)
24.98

Discovery & classification

Aten Near-Earth Object

Sources