3 beautiful craters: Reichenbach Stevinus and Snellius.

The pictures shows craters in the eastern part of the lunar disk . Here are craters of all sizes , most of which  Stevinus Snellius and Reichenbach 's satellite craters.

Reichenbach (71 km) is a crater with a very affected edge , double to the north. Although this seems oval , this and all the craters are mostly circular but seen like that because of their position on the Moon .

We take as reference the first image above, which shows the Moon in the correct position as seen from the Earth ( the second image is reversed as seen through the astronomical telescope ) .

North of Reichenbach observe 2 straddle smaller craters . They are Reichenbach A (34 km) and B (44 km). The latter has the whole edge and a central peak .

East of all these craters mentioned above , see some big black " holes ", because they are covered by shade, being at the terminal of the Moon (at the boundary between light / dark ) . These are Stevinus (75 km) (bottom right), and Snellius (83 km) , north of Stevinus . There are not many things to see on these craters in this light , being flooded by darkness, but we may notice the edges , which on Stevinus is sharp and and very affected on Snellius looking very messy .

Age of the Moon: 17 days
Phase: 93% (0% = New, 100% = full)
Distance: 394.960 km

Optics: Celestron C8-Newtonian telescope, 20mm Plossl, 2x Barlow
Mount: CG5 (EQ5) motorized
Camera: Sony CX130
Filter: no
Date: 31/12/2012
Location: Baia Mare, Romania
Processing:  FastStone Image Viewer

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Crater Stevinus and Snellius-telescope Moon images

Photographer: Victor Lupu
Optics: Celestron C8-Newtonian telescope, plossl 20mm, 2x Barlow
Mount: CG5 (EQ5)
Device: Sony CX105 to 5x optical zoom
Total magnification: 500 x zoom
Filter: No
Date: 16/07/2011
Location: Baia Mare, Romania
Processing: FastStone, video captures

Images in this article has reversed compass upside down as seen through the telescope.

                   Stevinus (75 km), is an impact crater on the south-east of the Moon, and is 3 km deep. Southeast is the great crater Furnerius (125 miles), and north-east is Snellius (83 km). To the northwest is Reichenbach (71 km).
Stevinus has a high interior wall and a central peak in mid. There are several small increases on the floor, in addition to the central peak. The crater is dating from the Copernican period, which lasted from 1.1 billion years ago until now. It is named after Simon Stevin, a belgian mathematician and engineer of the 16th century.

                   Snellius (83 km), it is not too far from Stevinus. On north-east is the huge crater Petavius ​​ (177 km), which is seen in the pictures above only partially (the south).
Snellius's edge is eroded, with some small overlapping craters. The floor is irregular and uneven. Western edge marks the beginning of Snellius Vallis, one of the longest valley of the Moon. It has about 500 km heading north-west almost to the Nectaris sea's edge. Its origin is associated with the formation of this sea.

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List of east features of the Moon. astronomy lecture

East of the Moon is marked by several interesting features. Most notably is Mare Crisium, a "sea" visible from the Earth with the naked eye as an isolated spot by other seas, dark in colour.
 Notable craters on the east side of the Moon are Posidonius, Petavius ​​and Langrenus, which are the largest in size.
 Even if it seems that East of the Moon has not too many huge craters, actually there are many  small craters as we can see in the list below.

Craters of the Moon's eastern area.

Adams
Al Bakri
Ansgarius
Apollonius
Asada
Atwood
Auzout
Balmer
Barkla
Battuta
Beaumont
Behaim
Beketov
Bellot
Berosus
Bessel
Bernoulli
Berzelius
Bilharz
Bohnenberger
Borda
Buckhardt
Cajal
Capella
Carrel
Carmichael
Catharina
Cauchy
Censorinus
Cepheus
Chacornac
Ching-Te
Cleomedes
Clerke
Colombo
Condorcet
Cook
Crozier
Cyrillus
Daniell
Da Vinci
Dawes
Debes
Dubiago
Eimmart
Fabbroni
Fermat
Firmicus
Fracastorius
Franklin
Fredholm
Furnerius
Gardner
Gauss
Geminus
Gilbert
Goclenius
Greaves
Gutenberg
Hase
Hahn
Hall
Holden
Humboldt
Hypatia
Isidorus
Jansen
Kapteyn
Kastner
La Perouse
Lame
Langrenus
Lawrence
Leakey
Legendre
Lick
Lindbergh
Lindenau
Littrow
Lohse
Lucian
Lubbock
Lyell
Maclaurin
Maclear
Macrobius
Magelhaens
Manilius
Manners
Maraldi
Marinus
Maskelyne
McClure
Menelaus
Mercurius
Messier
Messala
Metius
Monge
Monnier
Nansen
Naonobu
Newcomb
Nobili
Plinius
Ross
Palitzsch
Peirce
Petavius
Picard
Piccolomini
Plinius
Proclus
Reichenbach
Rheita
Ritter
Romer
Rothmann
Sabine
Santbech
Secchi
Sinas
Schumacher
Snellius
Stella
Stevinus
Sulpicius Gallus
Swift
Tacitus
Tacquet
Taruntius
Teophrastus
Theophilus
Tisserand
Torricelli
Tralles
Vendelinus
Vitruvius
Webb
Weinek
Wrottesley
Wrottesley
Zagut


Seas of the Moon's eastern area.

Mare Anguis
Mare Crisium
Mare Fecunditatis
Mare Nectaris
Mare Serenitatis
Mare Spumans
Mare Tranquillitatis
Mare Undarum

Mountains of the Moon's eastern area.


Montes Pyrenaeus
Montes Secchi
Montes Taurus
Mons Vitruvius
Mons Argaeus

Other forms of relief in the east area of the Moon.


Sinus Asperitatis
Sinus Amoris
Sinus Concordiae
Sinus Successus
Palus Somni
Lacus Somniorum
Vallis Palitzsch
Rupes Altai



Above: Video of east of the Moon through my telescope.

Space missions on the east side of the Moon.

Apollo 16 (1972) with people on board. Apollo 16 was the tenth mission in the Apollo program with humans. It was launched on 16 April 1972 and ended on 27 April. It was a lunar rover mission and brought back 94.7 kg of lunar soil and rock samples.

Apollo 17 with people on board. EVA activity (EVA). Apollo 17 was the 11th and last  manned mission of the Apollo space program. Launched at 12:33 a.m. on 7 December 1972, with a crew of three members: Eugene Cernan, Ronald Evans and Harrison Schmitt. Apollo 17 landing remains the most recent made ​​beyond Earth's orbit.

 Luna 21 (1973) USSR (Union of Soviet Socialist Republics), has successfully carried on the lunar surface rover Lunakhod 2 on January 15, 1973. It sent back 86 panoramic images and over 80,000 TV pictures.

Ranger 8 (1965) USA - intentionally crashed. Launched on February 20, 1965. Ranger 8 successfully sent 7137 images with a resolution of up to 1.5 m.

Surveyor 5 (1967) successfully landed. It sent more than 19,000 images to Earth, and has conducted more than 100 hours of compositional analysis of the surface.

To see the photographic map of the east area of the moon, view: Photographic map of the Moon: East Zone. Lunar Atlas.

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