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Asteroid Near-Earth

2017 HU49

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(2017 HU49)

Where is it now

Distance from Sun
1.02 AU
True anomaly
157.29°
Distance from Earth
1.976 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 2017 HU49 — 1.02 AU from the Sun 2017 HU49
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2017 HU49 is 1.976 AU from Earth today (16.4 light-minutes).

In the sky

Right ascension
13h 15m 15s
Declination
-07° 04′ 56″
Constellation
Virgo
Distance from Earth
1.98 AU
Elongation from the Sun
11.48° — too close to the Sun to observe

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
0.972 AU
Eccentricity
0.0551
Inclination
2.62°
Orbital period
349.8 days
Perihelion
0.918 AU
Aphelion
1.025 AU
Longitude of ascending node
45.67°
Argument of periapsis
345.73°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 4.6 LD
0.0119 AU
Tisserand (Jupiter)
6.218

Orbit quality

Orbit reasonably well determined (uncertainty code 4).

Observations used
148
Data arc
28 days
First observed
30 April 2017
Last observed
28 May 2017
Residual RMS
0.41 ″
Solution · Otto Matic
15 April 2021

Physical properties

Rotation period
0.62 hours

Visual & observation

Absolute magnitude (H)
26.5

Discovery & classification

Aten Near-Earth Object

Close approaches 42 on record

Flyby geometry
Ecliptic flyby of 2017 HU49 at 2038-02-18 11:12 UTC Top-down view of the ecliptic, Earth at the centre, for the 2038-02-18 11:12 UTC close approach of 2017 HU49. Catalogue miss distance 134.5 LD · 5.17 × 10⁷ km. The curve is the geocentric path from 2038-02-15 to 2038-02-21, 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 134.5 LD · 5.17 × 10⁷ km 2038-02-18 11:12 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2038-02-18 11:12 UTC close approach of 2017 HU49. Catalogue miss distance 134.5 LD · 5.17 × 10⁷ km. The curve is the geocentric path from 2038-02-15 to 2038-02-21, 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
2038-02-18 11:12:00 Earth 0.3457 AU 134.5 LD 11.8 km/s
2039-02-05 21:17:00 Earth 0.0892 AU 34.7 LD 3.7 km/s
2039-10-07 16:10:00 Earth 0.0805 AU 31.3 LD 2.4 km/s
2040-05-29 07:46:00 Earth 0.082 AU 31.9 LD 3.9 km/s
2041-05-24 08:13:00 Earth 0.3389 AU 131.9 LD 11.5 km/s
2060-02-26 12:31:00 Earth 0.4891 AU 190.3 LD 16.1 km/s
2061-02-12 18:05:00 Earth 0.2271 AU 88.4 LD 8.1 km/s
2061-12-19 02:14:00 Earth 0.0553 AU 21.5 LD 1.8 km/s
2063-05-24 14:59:00 Earth 0.1921 AU 74.8 LD 7.1 km/s
2064-05-16 12:39:00 Earth 0.4304 AU 167.5 LD 14.2 km/s

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

Sources