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Trans-Neptunian object

1999 DH8

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(1999 DH8)

Where is it now

Distance from Sun
41.218 AU
True anomaly
333.71°
Distance from Earth
42.073 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 1999 DH8 — 41.218 AU from the Sun 1999 DH8
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 1999 DH8 is 42.073 AU from Earth today (5.8 light-hours).

In the sky

Right ascension
12h 00m 12s
Declination
+04° 35′ 15″
Constellation
Virgo
Distance from Earth
42.07 AU
Elongation from the Sun
30.72° — 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
44.228 AU
Eccentricity
0.0748
Inclination
4.52°
Orbital period
294.1 years
Perihelion
40.921 AU
Aphelion
47.536 AU
Longitude of ascending node
105°
Argument of periapsis
98.85°
Epoch · J2000
2461200.5
Orbit class · TNO
Trans-Neptunian object
Earth MOID · 15,536.3 LD
39.9214 AU
Tisserand (Jupiter)
5.914

Orbit quality

Orbit poorly determined (uncertainty code 6).

Observations used
11
Data arc
739 days
First observed
16 February 1999
Last observed
24 February 2001
Residual RMS
0.26 ″
Solution · Otto Matic
14 April 2021

Visual & observation

Absolute magnitude (H)
8.7

Discovery & classification

TNO

Sources