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Asteroid Near-Earth

2025 HP5

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(2025 HP5)

Where is it now

Distance from Sun
0.913 AU
True anomaly
51.73°
Distance from Earth
0.527 AU
As of
24 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 — 0.994 AU from the Sun Earth 2025 HP5 — 0.913 AU from the Sun 2025 HP5
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2025 HP5 is 0.527 AU from Earth today (4.4 light-minutes).

In the sky

Right ascension
09h 34m 31s
Declination
-03° 44′ 43″
Constellation
Hydra
Distance from Earth
0.53 AU
Elongation from the Sun
65.64° — well clear of the Sun

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
0.975 AU
Eccentricity
0.0943
Inclination
18.04°
Orbital period
351.7 days
Perihelion
0.883 AU
Aphelion
1.067 AU
Longitude of ascending node
209.88°
Argument of periapsis
161.37°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 21.8 LD
0.0561 AU
Tisserand (Jupiter)
6.156

Orbit quality

Orbit poorly determined (uncertainty code 7).

Observations used
55
Data arc
7 days
First observed
26 April 2025
Last observed
3 May 2025
Residual RMS
0.38 ″
Solution · Otto Matic
3 May 2025

Visual & observation

Absolute magnitude (H)
23.88

Discovery & classification

Aten Near-Earth Object

Close approaches 7 on record

Flyby geometry
Ecliptic flyby of 2025 HP5 at 2051-04-21 14:35 UTC Top-down view of the ecliptic, Earth at the centre, for the 2051-04-21 14:35 UTC close approach of 2025 HP5. Catalogue miss distance 22.6 LD · 8.68 × 10⁶ km. The curve is the geocentric path from 2051-04-18 to 2051-04-24, 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. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate. Sun 22.6 LD · 8.68 × 10⁶ km 2051-04-21 14:35 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2051-04-21 14:35 UTC close approach of 2025 HP5. Catalogue miss distance 22.6 LD · 8.68 × 10⁶ km. The curve is the geocentric path from 2051-04-18 to 2051-04-24, 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. 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
2051-04-21 14:35:00 Earth 0.058 AU 22.6 LD 9.2 km/s
2052-04-26 23:38:00 Earth 0.1989 AU 77.4 LD 11.5 km/s

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

Sources