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Comet

ATLAS

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C/2025 D6 (ATLAS)

ATLAS is a comet in the Comet orbit class. Its orbit takes it from 2.5 AU to 2,464.9 AU from the Sun; one orbit takes 43,333.4 years. Orbit from the JPL solution of 28 October 2025.

Where is it now

Distance from Sun
6.882 AU
True anomaly
105.88°
Distance from Earth
6.994 AU
As of
25 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 ATLAS — 6.882 AU from the Sun ATLAS
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. ATLAS is 6.994 AU from Earth today (58.2 light-minutes).

In the sky

Right ascension
09h 25m 36s
Declination
+32° 45′ 01″
Constellation
Leo
Distance from Earth
6.99 AU
Elongation from the Sun
79.82° — well clear of the Sun

Favours the northern hemisphere; low or below the horizon from far south.

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
1,233.701 AU
Eccentricity
0.998
Inclination
145.79°
Orbital period
43,333.4 years
Perihelion
2.504 AU
Aphelion
2,464.898 AU
Longitude of ascending node
151.49°
Argument of periapsis
285.39°
Epoch · J2000
2460756.5
Orbit class · COM
Comet
Earth MOID · 674.7 LD
1.7336 AU
Tisserand (Jupiter)
-1.617

Orbit quality

Observations used
144
Data arc
239 days
First observed
26 February 2025
Last observed
23 October 2025
Residual RMS
0.51 ″
Solution · Otto Matic
28 October 2025

Visual & observation

Absolute magnitude (H)
12.6
Total magnitude M₁ · K₁ 10.8
12.6

Discovery & classification

Also known as 2025 D6

Named

Sources