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PUBLISHED MODELS, CITED MEASUREMENTS
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DATA STATUS
85 series loaded · last import on 2026-10-23

Moon phases and distance Phases, perigees, apogees and illuminated fraction, computed (Meeus)

Moon · now

The Moon tonight

The lighting reproduces the phase computed for this instant (Meeus algorithms) and the apparent size follows the current distance. The surface is the LRO (NASA) mosaic, served from this site.

Illuminated fraction now
92.0 %
waxing
Distance
380,585 km
101 % of the mean apparent size
Age of the lunation (days)
12.1
since the last new moon, approximate
Next full moon
26/10 04:11 UTC
Meeus (1998) · Published literature; cited

Phase and distance computed on the server; surface: NASA CGI Moon Kit (LROC mosaic and LOLA relief), public domain.

Earth–Moon distance now
380,585 km
2026-10-23 15:20 UTC
computed (Meeus), accuracy ≈ 1 min / 4 km
Illuminated fraction now
92.0 %
2026-10-23 15:20 UTC
waxing
Next New Moon
2026-11-09 07:02 UTC
computed (Meeus), accuracy ≈ 1 min / 4 km
Next Full Moon
2026-10-26 04:11 UTC
computed (Meeus), accuracy ≈ 1 min / 4 km
Earth–Moon distance, past 6 months and next 12 months Meeus (1998) · Published literature; cited
Show the data as a table
Geocentric distance at 0h UTC computed daily (Meeus, ch. 47; accuracy ≈ 4 km). The anomalistic cycle (27.55 d) moves the distance between ≈ 356,500 and ≈ 406,700 km.
Illuminated fraction of the disk Meeus (1998) · Published literature; cited
Show the data as a table
Illuminated fraction at 0h UTC (Meeus, ch. 48, simplified solar position). The synodic cycle lasts 29.53 days on average.
Next phases (UTC)
PhaseTime (UTC)
Full Moon2026-10-26 04:11 UTC
Last quarter2026-11-01 20:28 UTC
New Moon2026-11-09 07:02 UTC
First quarter2026-11-17 11:47 UTC
Full Moon2026-11-24 14:53 UTC
Last quarter2026-12-01 06:08 UTC
New Moon2026-12-09 00:51 UTC
First quarter2026-12-17 05:42 UTC
Full Moon2026-12-24 01:28 UTC
Last quarter2026-12-30 18:59 UTC
New Moon2027-01-07 20:24 UTC
First quarter2027-01-15 20:34 UTC
Full Moon2027-01-22 12:17 UTC
Last quarter2027-01-29 10:55 UTC
New Moon2027-02-06 15:56 UTC
First quarter2027-02-14 07:58 UTC
Full Moon2027-02-20 23:23 UTC
Last quarter2027-02-28 05:16 UTC
New Moon2027-03-08 09:29 UTC
First quarter2027-03-15 16:25 UTC
Full Moon2027-03-22 10:43 UTC
Last quarter2027-03-30 00:53 UTC
New Moon2027-04-06 23:51 UTC
First quarter2027-04-13 22:56 UTC
Computed times (Meeus, ch. 49): within seconds to a minute of the USNO ephemerides; ΔT after Espenak & Meeus.
Next perigees and apogees
EventTime (UTC)Distance
Perigee2026-10-28 18:00 UTC364,410 km
Apogee2026-11-13 17:49 UTC405,618 km
Perigee2026-11-25 20:57 UTC359,346 km
Apogee2026-12-11 06:45 UTC406,420 km
Perigee2026-12-24 08:29 UTC356,649 km
Apogee2027-01-07 08:10 UTC406,608 km
Perigee2027-01-21 21:49 UTC357,284 km
Apogee2027-02-03 13:30 UTC406,188 km
Perigee2027-02-19 07:30 UTC361,014 km
Apogee2027-03-03 05:40 UTC405,219 km
Perigee2027-03-19 04:30 UTC366,439 km
Apogee2027-03-31 01:33 UTC404,330 km
Perigee2027-04-14 00:40 UTC370,000 km
Apogee2027-04-27 21:21 UTC404,169 km
Perigee2027-05-09 20:07 UTC366,634 km
Apogee2027-05-25 15:13 UTC404,800 km
Perigee2027-06-06 14:53 UTC361,701 km
Apogee2027-06-22 05:07 UTC405,696 km
Perigee2027-07-04 20:54 UTC358,283 km
Apogee2027-07-19 11:51 UTC406,216 km
Perigee2027-08-02 06:27 UTC357,361 km
Apogee2027-08-15 14:23 UTC406,084 km
Perigee2027-08-30 15:36 UTC359,207 km
Apogee2027-09-11 23:38 UTC405,382 km
Computed times and distances (Meeus, ch. 50): within a few minutes and a few km of the ephemerides. Full Moons closer than 360,000 km in the coming year (“supermoons”, no official definition): 2 (2026-12-24, 2027-01-22).
Method and sources

Every value on this page is computed on the server with Jean Meeus’ algorithms (Astronomical Algorithms, 2nd ed., 1998): geocentric position (chapter 47, 60 periodic terms from ELP-2000/82), illuminated fraction (ch. 48), phases (ch. 49) and apsides (ch. 50). The tables were taken from the free “astronomia” port (MIT) and checked against the book’s examples and USNO published times (automated tests).

Dynamical times are converted to UTC with the Espenak & Meeus ΔT polynomials.

Reading these data
These are calculations, not observations: accuracy about 10″ in longitude, 4 km in distance, one minute on phases. No effect of lunar phases on earthquakes is established by these data; see the “Tides and earthquakes” Correspondences page.
SOURCES OF THIS PAGE
Meeus (1998)
Meeus, J. (1998). Astronomical Algorithms, 2nd ed. Willmann-Bell. Chapters 47–50: position, illuminated fraction, phases and apsides of the Moon.
Licence : Published literature; cited
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