OOOO
Lunar X and V
o
Lunar X and V
– These are famous optical features on the moon, visible through telescopes.
– When the terminator or line between light and dark on the moon, which is located in just the right place, it appears as the letter X and V on the moon’s surface.
oooo
2025 Lunar X and V
– Seven months of 2025 when the X and V are visible.
– However, as stated above, clair-obscure effects are difficult to observe on a daytime Moon, but they are also harder to observe when the Moon is very low because of atmospheric disturbances.
(Thanks to Mary McIntyre FRAS for her blog.)
.
2025 Timetable – Visibility Timetable
- Monday 6th January – 17:00 / 5pm UT (photos: 5pm & 9.30pm)
- Wednesday 5th February – 07:30 / 7.30am UT
- Thursday 6th March – 22:30 / 10:30pm UT
- Saturday 5th April – 12:30 / 12:30pm BST
- Monday 5th May – 01:15 / 1.15am BST
- Wednesday 3rd June – 13:00 / 1pm BST
- Wednesday 3rd July – 00:00 / 12:00am BST
- Friday 1st August – 10:30 / 10:30am BST
- Sunday 31st August – 21:15 / 9.15pm BST
- Monday 29th September – 08:30 / 08:30am BST
- Wednesday 29th October – 21:00 / 9pm BST
- Thursday 27th November – 01:15 / 1.15am UT
- Saturday 27th December – 01:00 / 1am UT
(See more photos)
oooo
oooo
oooo
oooo
Back to Observing the Moon page