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Asteroid Near-Earth

89355

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89355 (2001 VS78)

Where is it now

Distance from Sun
2.054 AU
True anomaly
133.62°
Distance from Earth
1.779 AU
As of
11 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.

Orbit of Mercury Orbit of Venus Orbit of Mars Sun Earth — 0.998 AU from the Sun Earth 89355 — 2.054 AU from the Sun 89355
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 89355 is 1.779 AU from Earth today (14.8 light-minutes).

In the sky

Right ascension
19h 36m 30s
Declination
-37° 56′ 06″
Constellation
Sagittarius
Distance from Earth
1.79 AU
Elongation from the Sun
90.54° — well clear of the Sun

Favours the southern hemisphere; low or below the horizon from far north.

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
1.787 AU
Eccentricity
0.3083
Inclination
22.66°
Orbital period
872.5 days
Perihelion
1.236 AU
Aphelion
2.338 AU
Longitude of ascending node
103.03°
Argument of periapsis
85.01°
Epoch · J2000
2461200.5
Orbit class · AMO
Amor
Earth MOID · 173.0 LD
0.4446 AU
Tisserand (Jupiter)
3.941

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
3,744
Data arc
48.15 years
First observed
23 June 1978
Last observed
18 August 2026
Residual RMS
0.41 ″
Solution · Otto Matic
19 August 2026

Physical properties

Mean radius
1.02 km
Rotation period
40.55 hours

Visual & observation

Geometric albedo
0.246
Absolute magnitude (H)
15.8
Spectral type (SMASS)
S

Discovery & classification

Discovered by
LONEOS
Discovery date
15 November 2001
Discovery site
Anderson Mesa

Also known as 2001 VS78

Amor Near-Earth Object

Close approaches 2 on record

When (UTC) Body Distance Lunar distances Relative speed
2066-05-11 23:45:00 Mars 0.0705 AU 27.5 LD 12.1 km/s
2154-09-30 16:39:00 Mars 0.0364 AU 14.2 LD 12.8 km/s

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

Sources