Lua entered the new phase this Friday, May 15, 2026, starting a new lunar cycle of approximately 29.5 days. Durante During this period, the natural satellite remains positioned between Terra and Sol, preventing the illuminated face from being visible from the Earth’s surface. The total absence of lunar brightness turns the night scene into a unique opportunity for amateur and enthusiast astronomers to observe smaller magnitude stars, distant planets, nebulae and galaxies that are normally overshadowed by the intense brightness of Lua. The phenomenon occurs monthly and dictates the rhythm of tides and the astronomical calendar across the planet.
Astronomical Alinhamento results in zero visibility of lunar surface
The current alignment results in 0% visibility of the lunar surface facing Terra. Isso happens because the face that receives sunlight is completely opposite to the terrestrial geographic point of view. The satellite rises and sets almost simultaneously with Sol, remaining above the horizon during the day, which makes it impossible to locate it with the naked eye in the blue firmament.
On the same topic: New Moon marks Saturday, May 16th with minimum visibility of just 1% in the sky
The new Lua marks the starting point of the synodic month, a unit of time that underlies many traditional calendars around the world. The cycle is renewed when Lua reaches the same ecliptic longitude as Sol. Starting this Saturday, the satellite will begin to move east in relation to the star, gradually beginning its journey through the crescent phase.
More on this story: Full moon shines in May: check out all the phases of the month and which moon is today
Características of the lunar cycle starting in May
- Lua is located in the constellation corresponding to the period of the year.
- The angular distance between the satellite and Sol gradually increases each day.
- Illumination grows by about 3% to 7% every 24 hours after the peak of the new phase.
- Today’s phenomenon represents the moment of least light interference of the entire month.
Total darkness is temporary and will give way to the emergence of a thin arc of light in the coming days. Esse stage is popularly known as “young moon” or first sign of the waxing phase. Attentive Observadores will be able to notice a faint outline of the rest of the lunar disk, an effect called gray light, caused by the sunlight that bounces off Terra and illuminates the shadowed part of Lua.
Progressão luminous and observation conditions
The luminous progression follows a constant rhythm until reaching the crescent moon next week. Até there, the satellite will appear higher and higher in the sky shortly after sunset. The illuminated region will grow from right to left for those observing from Hemisfério Sul, offering a gradual and predictable visual spectacle.
Para If you want to observe the sky this Friday, the recommendation is to look for places away from the lights of big cities. Urban light pollution reduces contrast and erases the details that the new Lua allows you to see. Telescópios and high-powered binoculars are useful tools, but the naked eye already offers a different spectacle. Planetas like Marte and Saturno can be identified more easily with the completely black sky background. It is important to check local weather conditions before planning to observe outside, as cloud cover can completely block the view of the stars, regardless of the lunar phase.
Próximos 2026 Lunar Calendar Milestones
The cycle that began today will continue with important milestones in the following weeks. Após the new phase, the lighting will increase until half of the disc is visible to Brazilians. The peak of brightness will occur at the end of the month, when Lua will reach the flood stage. Especialistas reinforce that each phase has different impacts on nature observation and nautical activities, especially spring tides, which are the most extreme and occur precisely in the new and full phases. Knowledge of these dates is vital for navigation and professional fishing along the entire coast of the country.