Moon phase on November 17, 2003

Last Quarter, 40%
🌗 Last Quarter
Monday, November 17, 2003 · at noon (Brasília)
Illumination: 40% Age: 23.0 days Cycle: 78%
Home → Moon phase → November 17, 2003

On Monday, November 17, 2003 the Moon was in its last quarter phase, with 40% of its disk illuminated and an age of 23.0 days since the last new moon. Half of the disk is lit again, on the opposite side from the first quarter. The Moon rises around midnight and is visible in the morning.

Moon data for this date

Moon at noon Brasília time (UTC-3)
Phase🌗 Last Quarter
Illumination40%
Moon age23.0 days
Day of the weekMonday
Last new moonOctober 25, 2003 at 10:50
Next full moonDecember 8, 2003 at 18:37 (in 21.3 days)
Next new moonNovember 23, 2003 at 20:59 (in 6.4 days)

The Moon on the surrounding days

Compare the phase and illumination over the three days before and after. Click a day to open its page.

FriNov 14Waning Gibbous, 71%71%Waning GibbousSatNov 15Waning Gibbous, 61%61%Waning GibbousSunNov 16Last Quarter, 50%50%Last Quarter
MonNov 17Last Quarter, 40%40%Last Quarter
TueNov 18Waning Crescent, 29%29%Waning CrescentWedNov 19Waning Crescent, 20%20%Waning CrescentThuNov 20Waning Crescent, 12%12%Waning Crescent

← November 16, 2003 November 18, 2003 →

About the last quarter

Half of the disk is lit again, on the opposite side from the first quarter. The Moon rises around midnight and is visible in the morning. The phase name comes from the Moon's position in its 29.53-day cycle: on November 17, 2003 it had completed 78% of the cycle that began with the new moon on October 25, 2003.

Looking for another date, such as a birthday? Use the Moon phase on the day I was born tool, see the Moon phase today page with the lunar calendar, or find the day of the week of November 17, 2003. For sun times, check sunrise and sunset.

Frequently asked questions

What is the Moon phase on November 17, 2003?

On November 17, 2003 the Moon was in its last quarter phase, with 40% of the disk lit (calculated at noon Brasília time).

How old is the Moon on that date?

The age is the time since the last new moon: 23.0 days of an average 29.53-day cycle.

When is the next full moon after that date?

The next full moon after November 17, 2003 falls on December 8, 2003 at 18:37 Brasília time.

When is the next new moon after that date?

The next new moon after November 17, 2003 falls on November 23, 2003 at 20:59 Brasília time.

How is the Moon phase calculated?

With Jean Meeus's astronomical formulas for the instants of new, quarter and full moon. The age comes from the time since the last new moon and the illumination is (1 − cos(2π × cycle fraction)) / 2.

Is the phase the same everywhere in the world?

Yes, the phase and the illuminated percentage are the same across the planet at any given instant. Only the orientation changes: in the southern hemisphere a waxing Moon is lit on the left, in the northern one on the right.