Seeing the Lunar X, dawn on the Moon, and occultation of Chi Leo. Wednesday, June 3, 2025

The Lunar X (often known as the Werner X) and the Lunar V might be seen this Saturday because the moon reaches First Quarter.
The Lunar X is a chiaroscuro effect wherein sturdy contrasts of sunshine and shadow create the looks of a letter ‘X’ on the rim of the Lunar craters Blanchinus, La Caille and Purbach and a letter V from the rim of the crater Ukert, together with a number of smaller craters. 

The X and V are seen at first quarter, seen on the lunar floor for about 4 hours. Nevertheless, the Moon shouldn’t be all the time above the horizon from a given vantage level when this occurs. This month is okay for Australian observers, with the Moon low to the horizon within the jap sates, and fairly excessive on the west coast.

Lunar X happens on Wednesday, June 3, 13:18 UT,  23:13 AEST, 22:30 ACST, 21:11 AWST). That is later than official first Quarter which happens at 13:11 ACST.

This can be a telescope (and possibly good binoculars) solely occasion. For the west coast the beginning of the Lunar X happens with the Moon being 36° above the horizon, central states see it at 24° above the horizon, and for the east coast at 9° above the horizon.

Upcoming Lunar X’ s are proven under:

Dates and time Lunar X and V are seen. Usually seen from
about 4hours from the beginning time, instances in color are daylight saving
instances.

If you’re setting as much as see the Lunar X, why not begin early so you possibly can watch dawn on the Moon? You may watch the edges of crater partitions mild up as hours progress.Ranging from nautical twilight, an hour after sundown, picture the Moon via binoculars of a telescope each hour till round moon set and you may see the partitions of the Lunar V mild up, then the partitions of the X. 

Additionally in case you are establishing early, catch the reappearance of Chi Leo from occultation by the Moon. that is an occulation within the late twilight, Darwin and Perth miss out.

The moon as seen from Adelaide at 17:750 ACST as Chi Leo is reappearing from occultation.	The telescopic view of the moon as seen from Adelaide at 17:750 ACST as Chi Leo is reappearing from occultation.

Labels: Lunar X, Moon, Occultation, telescope

# posted by Ian Musgrave @ 11:16 pm