✨ Caelus • Lunar Eclipse on October 16, 1921

September 09, 2026 17:10:46 UTC+02:00 [48.85° N, 2.35° E]

‹ All eclipses in 1921
The Moon in Earth's shadow Partial Lunar Eclipse: at greatest eclipse the Moon's centre passes 1.80 Moon radii south of the axis of Earth's shadow, with 93% of its diameter inside the umbra and 199% inside the penumbra.

Partial Lunar Eclipse

October 16, 1921
Umbra Penumbra Moon
Greatest Eclipse
23:53
22:53 UTC
Duration
5h 42m
first to last penumbral contact
Deepest Phase
3h 19m
Partial phase
Umbral Magnitude
0.932
of the diameter in the umbra
Penumbral Magnitude
1.986
of the diameter in the penumbra
Gamma
-0.490
3 126 km south of the axis

🕐 Contacts

Times in Europe/Paris, with UTC underneath.

  1. First penumbral contact (P1)
    The Moon touches Earth's penumbra and starts to dim.
    21:02
    20:02 UTC
    PA 55.8°
    29.5° alt · 115° az
  2. First umbral contact (U1)
    The Moon reaches the umbra and the partial eclipse begins.
    22:14
    21:14 UTC
    PA 44.5°
    39.3° alt · 132° az
  3. Greatest eclipse
    The Moon's centre is least distant from the axis of Earth's shadow.
    23:53
    22:53 UTC
    PA 163.9°
    48.0° alt · 164° az
  4. Fourth umbral contact (U4)
    The Moon leaves the umbra and the partial eclipse ends.
    01:33
    00:33 UTC
    PA 283.3°
    47.8° alt · 200° az
  5. Last penumbral contact (P4)
    The Moon leaves Earth's penumbra and the eclipse ends.
    02:44
    01:44 UTC
    PA 272.1°
    41.9° alt · 223° az

The position angle is measured on the Moon's limb from celestial north through east, the convention IMCCE and NASA publish, so these values can be compared with a published table directly.

👁 Visibility

From your location.

The Moon is up from the first to the last contact.
Penumbral phase
Entirely visible
Partial phase
Entirely visible
Moon above the horizon
21:02 – 02:44

A lunar eclipse happens at the same moment everywhere. All that changes from place to place is whether the Moon is above the horizon.

⏳ Durations

Penumbral phase 5h 42m
Partial phase 3h 19m

🌍 About This Eclipse

A partial lunar eclipse occurs when the Earth passes between the Sun and the Moon, but they are not perfectly aligned. This causes only a portion of the Moon to be covered by the Earth's shadow, resulting in a partial darkening of the Moon's surface.

A lunar eclipse is a geocentric event. The contacts and magnitudes on this page are the same for every observer who can see the Moon at that moment.