{"id":52968,"date":"2023-12-28T08:30:00","date_gmt":"2023-12-28T08:30:00","guid":{"rendered":"http:\/\/9f42c636-5134-46c1-8ee5-a202d34be1d6"},"modified":"2023-12-28T09:32:32","modified_gmt":"2023-12-28T09:32:32","slug":"how-to-see-the-moons-tricky-mare-orientale-region","status":"publish","type":"rss_feed","link":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/rss_feed\/how-to-see-the-moons-tricky-mare-orientale-region\/","title":{"rendered":"How to see the Moon’s tricky Mare Orientale region"},"content":{"rendered":"

Mare Orientale is a region on the edge of the Moon that can only be seen as a result of the Moon’s wobble, known as libration. <\/p>

By Pete Lawrence\n <\/p>

Published: Thursday, 28 December 2023 at 08:30 AM<\/p>

\n\n

Mare Orientale is the name given to a 300km-diameter lunar sea<\/a> very close to the Moon\u2019s southwest limb as seen from Earth.<\/p>

The basin comprises the sea plus a series of concentric mountain ranges, the outermost of which has a diameter of 920km.<\/p>

Seen from above, the central Mare Orientale plus its surrounding mountain rings appear like a giant bull\u2019s eye.<\/p>

Smaller patches of dark lava fill in some areas between the concentric ranges.<\/p>

Discover our pick of the best features to observe on the Moon<\/a> and lesser known features on the Moon<\/a><\/em><\/strong><\/p>

Favourable lunar libration is required to see the Moon’s Mare Orientale region. Credit: Pete Lawrence<\/figcaption><\/figure>

Lunar libration<\/strong><\/h2>

The Moon presents us with the same familiar face, but orbital effects cause it to appear to rock and roll slightly over time.<\/p>

These effects are collectively called libration and for features such as Orientale on the Moon\u2019s edge, libration can either hide them from us or give us a better view.\u00a0<\/p>

On certain dates, libration moves Orientale and its surroundings into an Earth-friendly position.<\/p>

\"Thanks
Thanks to lunar libration we can observe slightly more than half of the Moon\u2019s surface. Credit: Pete Lawrence<\/figcaption><\/figure>

Observing Mare Orientale<\/strong><\/h2>

Mare Orientale is a tricky feature to decode as its structures appear heavily fore\u00adshortened.<\/p>

Features to look for inlcude the eastern peaks of the outer Montes Cordillera, as well as peaks of the inner Montes Rook range.<\/p>

Also look out for some of the darker lava patches.<\/p>

The larger examples have been given names such as Lacus Veris and Lacus Autumni.<\/p>

The holy grail is to try to see the inner lava of Mare Orientale itself, but don\u2019t expect this region of the Moon to be an easy catch!<\/p>

Labelled diagram<\/strong><\/h2>

Below is a labelled diagram indicating some of the features you may be able to spot.<\/p>

\"Labelled
Labelled diagram showing the visible regions of the Moon’s Mare Orientale region. Credit: Pete Lawrence<\/figcaption><\/figure>

Have you managed to observe or even photograph it? Let us know by emailing contactus@skyatnightmagazine.com<\/a><\/em><\/strong><\/p> <\/body><\/html>\n

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