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Asteroid Near-Earth

2025 HH

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(2025 HH)

Where is it now

Distance from Sun
0.68 AU
True anomaly
7.81°
Distance from Earth
0.891 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 2025 HH — 0.68 AU from the Sun 2025 HH
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2025 HH is 0.891 AU from Earth today (7.4 light-minutes).

In the sky

Right ascension
11h 04m 37s
Declination
+00° 21′ 36″
Constellation
Leo
Distance from Earth
0.89 AU
Elongation from the Sun
41.78° — 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
0.911 AU
Eccentricity
0.2552
Inclination
7.65°
Orbital period
317.7 days
Perihelion
0.679 AU
Aphelion
1.144 AU
Longitude of ascending node
207.68°
Argument of periapsis
233.69°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 0.0 LD
0.0001 AU
Tisserand (Jupiter)
6.512

Orbit quality

Orbit reasonably well determined (uncertainty code 5).

Observations used
22
Data arc
3 days
First observed
18 April 2025
Last observed
21 April 2025
Residual RMS
0.44 ″
Solution · Otto Matic
21 April 2025

Visual & observation

Absolute magnitude (H)
30.77

Discovery & classification

Listed by JPL impact monitoring; see the Sentry table for current probabilities.

Aten Near-Earth Object

Close approaches 27 on record

Flyby geometry
Ecliptic flyby of 2025 HH at 2032-06-04 02:22 UTC Top-down view of the ecliptic, Earth at the centre, for the 2032-06-04 02:22 UTC close approach of 2025 HH. Catalogue miss distance 66.0 LD · 2.54 × 10⁷ km. The curve is the geocentric path from 2032-06-01 to 2032-06-07, 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 66.0 LD · 2.54 × 10⁷ km 2032-06-04 02:22 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2032-06-04 02:22 UTC close approach of 2025 HH. Catalogue miss distance 66.0 LD · 2.54 × 10⁷ km. The curve is the geocentric path from 2032-06-01 to 2032-06-07, 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
2032-06-04 02:22:00 Earth 0.1696 AU 66.0 LD 5.8 km/s
2035-06-04 06:12:00 Venus 0.0659 AU 25.7 LD 11.3 km/s
2039-08-12 21:36:00 Earth 0.1305 AU 50.8 LD 8 km/s
2039-11-27 04:32:00 Venus 0.1421 AU 55.3 LD 9.4 km/s
2045-04-17 13:14:00 Moon 0.0012 AU 0.4 LD 7.4 km/s
2045-04-18 00:24:00 Earth 0.0008 AU 0.3 LD 8 km/s

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

Sources