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Comet

Masek

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C/2024 Y1 (Masek)

Masek is a comet in the Comet orbit class. Its orbit takes it from 0.82 AU to 122.66 AU from the Sun; one orbit takes 485.2 years. Orbit from the JPL solution of 13 February 2025.

Where is it now

Distance from Sun
7.777 AU
True anomaly
143.19°
Distance from Earth
7.851 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 Masek — 7.777 AU from the Sun Masek
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. Masek is 7.851 AU from Earth today (1.1 light-hours).

In the sky

Right ascension
09h 13m 23s
Declination
+36° 04′ 13″
Constellation
Lynx
Distance from Earth
7.85 AU
Elongation from the Sun
82.75° — 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
61.743 AU
Eccentricity
0.9867
Inclination
64.75°
Orbital period
485.2 years
Perihelion
0.822 AU
Aphelion
122.663 AU
Longitude of ascending node
112.55°
Argument of periapsis
238.14°
Epoch · J2000
2460675.5
Orbit class · COM
Comet
Earth MOID · 18.6 LD
0.0477 AU
Tisserand (Jupiter)
0.562

Orbit quality

Orbit poorly determined (uncertainty code 7).

Observations used
98
Data arc
24 days
First observed
26 December 2024
Last observed
19 January 2025
Residual RMS
0.63 ″
Solution · Otto Matic
13 February 2025

Visual & observation

Absolute magnitude (H)
17.8
Total magnitude M₁ · K₁ 17.8
17.8

Discovery & classification

Also known as 2024 Y1

Named

Sources