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Comet

Perrine

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C/1898 F1 (Perrine)

Perrine is a comet in the Comet orbit class. Its orbit takes it from 1.1 AU to 110.95 AU from the Sun; one orbit takes 419.3 years. Orbit from the JPL solution of 9 October 2023.

Where is it now

Distance from Sun
100.277 AU
True anomaly
176.27°
Distance from Earth
100.007 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 Perrine — 100.277 AU from the Sun Perrine
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. Perrine is 100.007 AU from Earth today (13.9 light-hours).

In the sky

Right ascension
06h 33m 11s
Declination
-18° 06′ 42″
Constellation
Canis Major
Distance from Earth
100 AU
Elongation from the Sun
105.92° — 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
56.021 AU
Eccentricity
0.9804
Inclination
72.53°
Orbital period
419.3 years
Perihelion
1.095 AU
Aphelion
110.947 AU
Longitude of ascending node
263.87°
Argument of periapsis
47.31°
Epoch · J2000
2414427.5
Orbit class · COM
Comet
Earth MOID · 100.7 LD
0.2587 AU
Tisserand (Jupiter)
0.481

Orbit quality

Orbit reasonably well determined (uncertainty code 4).

Observations used
327
Data arc
236 days
First observed
22 March 1898
Last observed
13 November 1898
Residual RMS
0.94 ″
Solution · Otto Matic
9 October 2023

Visual & observation

Absolute magnitude (H)
6.4
Total magnitude M₁ · K₁ 10.8
6.4

Discovery & classification

Also known as 1898 F1

Named

Sources