Lobachevskiy is a lunar impact crater that is located on the far side of the Moon, beyond the eastern limb. It was named after Russian mathematician Nikolai Lobachevsky in 1961. This crater lies to the southeast of the larger crater Fleming. Less than a crater diameter to the east-northeast lies Guyot.
This is a well-formed crater with features that have not been significantly eroded since Lobachevskiy was first formed. The rim and inner wall are nearly free of significant overlapping impacts, although the satellite crater Lobachevskiy M is attached to the southern outer rim. The inner walls display terrace features, along with some slumping along the upper edge.
Near the midpoint of the interior floor is a pair of central peaks, with one to the southeast and the other to the northwest of the middle.The infrared spectrum of pure crystalline plagioclase has been identified on these rises.
Prior to 1961 this crater was known as Crater 205.
Views
<gallery heights="150px" mode="packed">
Image:AS11-43-6450 Lobachevsky crater.jpg|Low-altitude oblique close-up from Apollo 11
Image:Lobachevskiy crater AS16-M-3001 ASU.jpg|Oblique Apollo 16 mapping camera image
Image:Lobachevskiy crater AS16-M-1322.jpg|Oblique Apollo 16 mapping camera image
File:Lobachevskiy crater wall ribbons AS16-P-5022.jpg|Small crater in the wall of Lobachevskiy with distinct flow lobes
</gallery>
Satellite craters
thumb|right|Lobachevskiy and its two satellite craters
By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Lobachevskiy.
{| class="wikitable"
!width="25%" style="background:#eeeeee;" |Lobachevskiy
!width="25%" style="background:#eeeeee;" |Latitude
!width="25%" style="background:#eeeeee;" |Longitude
!width="25%" style="background:#eeeeee;" |Diameter
|-
|align="center"|M
|align="center"|8.0° N
|align="center"|112.8° E
|align="center"|41 km
|-
|align="center"|P
|align="center"|7.7° N
|align="center"|111.3° E
|align="center"|26 km
|}
References
</references>