Lubiniezky est un cratère de 44 Km et profond de 770 m inondé par la lave, situé sur le bord Nord-ouest de la Mer des Nuées (Mare Nubium). Lubiniezky se trouve au Nord-ouest de Bullialdus. Le plancher de Lubiniezky a été recouvert par la lave, qui est très probablement entrée de la Mer environnante par le mur sud-est plus bas. La muraille survivante est jointe à des arêtes fixées aux murs Nord et occidental. Le cratère Lubiniezky A, au Nord-ouest est également inondé par la lave.

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Lubiniezky is a lava-flooded lunar crater on the northwest edge of Mare Nubium. This feature is most readily located by finding the prominent Bullialdus crater to the southeast.
The floor of Lubiniezky has been resurfaced by basaltic-lava, which most likely entered from the surrounding mare through the gap in the southeast wall. The surviving rim forms a curved, worn rise around the relatively flat and featureless inner floor. The rim is joined by ridges attached to the north and west walls. To the north of this feature is the bowl-shaped Darney crater. The associated craters 'Lubiniezky A' and 'E' are also flooded, and lie to the northwest.