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Comet

Schorr

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D/1918 W1 (Schorr)

Where is it now

Distance from Sun
3.87 AU
True anomaly
127.56°
Distance from Earth
4.738 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 Schorr — 3.87 AU from the Sun Schorr
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. Schorr is 4.738 AU from Earth today (39.4 light-minutes).

In the sky

Right ascension
11h 37m 17s
Declination
+06° 04′ 32″
Constellation
Leo
Distance from Earth
4.74 AU
Elongation from the Sun
26.77° — 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
3.542 AU
Eccentricity
0.4683
Inclination
5.57°
Orbital period
6.66 years
Perihelion
1.883 AU
Aphelion
5.2 AU
Longitude of ascending node
118.96°
Argument of periapsis
279.29°
Epoch · J2000
2421932.5
Orbit class · JFc
Jupiter-family comet (P < 20 y)
Earth MOID · 350.1 LD
0.8997 AU
Tisserand (Jupiter)
2.92

Orbit quality

Orbit poorly determined (uncertainty code 7).

Observations used
22
Data arc
38 days
First observed
23 November 1918
Last observed
31 December 1918
Residual RMS
0.51 ″
Solution · Otto Matic
15 April 2021

Discovery & classification

Also known as 1918 W1

Named

Sources