2024 HB is an asteroid in the Apollo orbit class. Its orbit takes it from 0.67 AU to 1.35 AU from the Sun; one orbit takes 372.1 days. Orbit from the JPL solution of 28 July 2026.
Where is it now
- Distance from Sun
- 1.205 AU
- True anomaly
- 220.68°
- Distance from Earth
- 1.473 AU
- As of
- 3 November 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.
In the sky
- Right ascension
- 18h 21m 11s
- Declination
- -12° 52′ 14″
- Constellation
- Serpens
- Distance from Earth
- 1.47 AU
- Elongation from the Sun
- 54.29° — 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.
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
- 1.012 AU
- Eccentricity
- 0.3365
- Inclination
- 13.95°
- Orbital period
- 372.1 days
- Perihelion
- 0.672 AU
- Aphelion
- 1.353 AU
- Longitude of ascending node
- 204.87°
- Argument of periapsis
- 251.71°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 0.2 LD
- 0.0006 AU
- Tisserand (Jupiter)
- 5.946
Orbit quality
Orbit poorly determined (uncertainty code 7).
- Observations used
- 33
- Data arc
- 2 days
- First observed
- 16 April 2024
- Last observed
- 18 April 2024
- Residual RMS
- 0.55 ″
- Solution · Otto Matic
- 28 July 2026
Visual & observation
- Absolute magnitude (H)
- 27.99
Discovery & classification
Close approaches 32 on record
Top-down view of the ecliptic, Earth at the centre, for the 2066-09-16 07:58 UTC close approach of 2024 HB. Catalogue miss distance 63.2 LD · 2.43 × 10⁷ km. The curve is the geocentric path from 2066-09-13 to 2066-09-19, 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.
| When (UTC) | Body | Distance | Lunar distances | Relative speed |
|---|---|---|---|---|
| 2031-02-22 00:02:00 | Venus | 0.0645 AU | 25.1 LD | 12 km/s |
| 2034-03-15 10:31:00 | Venus | 0.0939 AU | 36.5 LD | 16.4 km/s |
| 2060-09-07 05:27:00 | Venus | 0.1336 AU | 52.0 LD | 10.6 km/s |
| 2063-09-28 07:19:00 | Venus | 0.0404 AU | 15.7 LD | 13.7 km/s |
| 2066-09-16 07:58:00 | Earth | 0.1625 AU | 63.2 LD | 14.7 km/s |
| 2078-04-13 02:59:00 | Earth | 0.0913 AU | 35.5 LD | 9.9 km/s |
| 2079-04-16 02:49:00 | Earth | 0.0167 AU | 6.5 LD | 12.4 km/s |
| 2080-04-20 03:55:00 | Earth | 0.1424 AU | 55.4 LD | 15.6 km/s |
Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.
Sources
- visual properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB