The September 12th we do not make commitments, the Moon will be the protagonist of a spectacular event: theconcealment of the Pleiades: we will see our satellite hide the most beautiful stellar cluster of the firmamento on our sight. We cannot miss, the show will be perfectly visible to the naked eye (time permitting).
As the UAI explains, in the late evening of 12 September we will see the moon arise on the eastern horizon and pass in front of the stars of the embassy, hiding them from our sight, on the margins of the Constellation of the Taurus (on the map the Heaven of 12 September 2025 at 11.45 pm).
Concealment is a phenomenon very similar to eclipseas it occurs when a celestial object passes in front of another, temporarily hiding it from sight. In the case of the eclipses we speak more correctly than Shadow projectedbut there is another difference between the two phenomena, such as explains NASAwho writes:
Concealmentthat is, when an object passes in front of another object with much smaller apparent dimensions, like the moon that passes in front of a distant star
Which is precisely the case that awaits us on the evening of September 12th.
And that it is not only a suggestive visual phenomenon, it is in fact “used” also in the astronomical research: It can in fact provide precious information on the size, shape and atmospheric properties of the planets and other worlds. For example, in 1977, Uranus rings were discovered by Kuiper Airborne Observatory of the NASA just when the planet occupied a star.
Among other things, the position of this particular concealment is particularly “lucky” because near the Constellation of the Bull we can admire that of Perseuswhere the Radiant of the epsilon and the Delta Perseid Which were just three evenings before, and therefore presumably still active.
Finally – we will never tire of saying – the Pleiadi They are also a sun show: in fact the stellar cluster, far from sources of light pollution (which is in fact becoming a huge problem), shows us up to 12 stars And anyway, if the weather is Clemente, it is not difficult to count 4 or 5 even in the city.
Good visionthe show will be gorgeous (and let’s not forget it also prepare some desires).
Source: UAI
