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These images illustrate the northwest area of the Moon, namely that of Aristarchus crater, Sinus Iridum and Oceanus Procellarum.
In the first image I have lowered the brightness to better observe the color tones of the region. In this way, we see that the highlands are lighter, while the lower areas as Procellarum basin are darker. We can observe a peculiar hue around Aristarchus and Herodotus craters, which I guess has this color after Aristarchus's formation.
In this area, we see a lot of small craters that surprisingly are not satellite craters of other large craters. Some examples of craters are Naumann (10 km) Lichtenberg (20 km), Nielsen (10 km) Wollaston (10 km), Angstrom (10 km), Gruithuisen (16 km), C. Herschel (13 km) Heis (14 km), Delisle (25 km) and Diophantus (19 km). In the bottom of the images we see Aristarchus and Herodotus (40/35 km). Herodotus appears as a bright ring near Aristarchus and between the two we distinguish a curved westward channel called Vallis Schröteri.
Also Sinus Roris is observed west of Mare Frigoris and west of Mairan crater (40 km). This is a golf translared as the Gulf of Dew.
In the picture below are labeled craters and other lunar features in the region. To better understand this photo, you should note that the label with the name or the letter of larger craters could be found at their center, and on the small craters, you should find them around them, usually above.
Magnitude: -12.10
Phase: 0.96%
Distance: 402.464 km
Illuminated: 96% (0% = new, 100% = full)
Astronomical Instrument: Celestron C8-Newtonian telescope
Eyepiece: plossl 20mm, 2x Barlow
Mount: CG5 (EQ5)
Camera: Sony CX105
Filter: no
Date: 08.11.2011
Location: Baia Mare, Romania
Processing: Registax 5 FastStone Image Viewer
Posted in: Craters-Aristarchus and Herodotus,Gallery-Registax,Sinus Roris
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