| Risultati della ricerca nelle immagini - "King" |
APOLLO 16 AS 16-120-19265 HR.jpgAS 16-120-19265 (HR) - King Crater (1)109 visiteChe cosa c'è all'interno di questo spettacolare cratere che, in questo primo frame, inizia appena a mostrarci le sue caratteristiche ed i suoi rilievi interni, stupendamente esaltati nelle loro forme dal magnifico contrasto luce-ombra?
Provate a guardare il prossimo frame e quindi il nuovo ed estremamente intrigante detail mgnf (propostoci, ancora una volta, dall'ottimo Fabio Italiano)...
Per Vostra opportuna informazione, questo frame è stato ottenuto da un'altezza di circa 98 Km rispetto al Datum e le coordinate del luogo ripreso recitano:
Latitudine: 6,40° Nord
Longitudine: 121,70 Est
|
|
APOLLO 16 AS 16-120-19266.jpgAS 16-120-19266 - The "Playa" of King Crater56 visiteThe Apollo 16 Astronauts captured this spectacular view of the large dark "pool" on the North flank of the crater King as they approached from the East.
The pool (also known as a "lake", "pond" or "playa") is in an old crater swamped by King ejecta. The maximum width of the pool is about 21 Km. The peculiar dark material that forms the large pool and also coats adjacent hills was first discovered on Apollo 10 and was later seen again from Apollo 14.
The most exciting part of the discovery had to wait until the mapping and Panoramic Cameras of Apollo 16 showed that this material contains some of the freshest and most spectacular flow structures on the Moon.
These structures, some of which are seen in the following figures, show that the material behaved like lava.
The material is very similar in appearance to that filling parts of the floor of King.
|
|
APOLLO 16 AS 16-120-19268 (0).jpgAS 16-120-19268 - King Crater (2)165 visiteIndicato dalla freccia: un "punto" luminoso (piuttosto evidente e ben delineato, nonostante la scarsa definizione del frame) il quale si trova in una zona del King Crater già (ancora) immersa nell'ombra.
Ecco la Singolarità che ha attratto l'attenzione dell'Amico OldGrey e, come vedrete nei prossimi due frames, il materiale che lui ha elaborato e che ora Vi proponiamo, pur non dandoci alcuna certezza è comunque capace di stimolare la nostra curiosità e di metterci davanti, ancora una volta, ad una serie di possibilità.
Andiamo a vederle...
|
|
APOLLO 16 AS 16-120-19268.jpgAS 16-120-19268 - King Crater55 visiteThe similarity in appearance of the Southern part of the central peak and the slump terraces on the Southern wall of the crater is emphasized in this oblique view of the crater King.
The parallelism of the two arms of the central peak and the Southern segment of the peak suggests that the unique shape of the structure is caused by a preexisting tabular body that was excavated during the formation of the crater.
Numerous comical structures with summit pits are present on the crater floor in the lower right part of the photograph.
|
|
APOLLO 16 AS 16-122-19580.jpgAS 16-122-19580 - King Crater53 visiteThis vertical view of the crater King on the Lunar Far-Side was taken with the Apollo 16 Hasselblad camera. King, approx. 75 Km in diameter and 4 Km deep, is one of the most interesting features on the Far-Side. It is a superb example of a youthful, large crater. It attracted much attention and was the object of numerous scientific studies (Young, Brennan and Wolfe, 1972).
King is the freshest crater on the Far-Side in its size range. Among its many interesting features are:
1) a unique lobster-claw-like central peak;
2) a flat poollike area of dark material on the North rim believed to have once been molten;
3) a very-well-developed field of fine ejecta extending outward for approx. two crater diameters, and
4) a massive landslide on the South-East rim (see arrow).
In this view the Southern part of the central peak has a distinctly ropey appearance and is segmented parallel to the terraces of the adjacent crater wall. The low Sun illumination enhances the fine texture of King's ejecta. Northeast of King the ejecta mantles an old large crater and in the southwest corner of the picture it mantles a relatively smooth terra unit. The slightly raised plateau on which the crater is situated may be part of the ring of an old basin.
|
|
APOLLO 16 AS 16-5006 (1).jpgAS 16-5006 - Details of King Crater (1)55 visiteHere is an enlarged vertical view of more flow lobes inside King Crater. Fine lineations radial to King are prominent in the ejecta blanket behind (South-East of) the lobate fronts. The term "deceleration lobe" has been applied because the lobes occur only where the ejecta slowed down and came to rest on slopes that face toward King. They resemble terrestrial rock avalanche deposits that came to rest after climbing a small slope. Some lobes overlap each other outward like shingles.
The sketch (2) shows what would probably be seen in a cutaway view. The arrow shows the direction of movement of the ejecta over the old landscape.
|
|
APOLLO 16 AS 16-5006 (2).jpgAS 16-5006 - Sketch of the details of King Crater (2)53 visitenessun commento
|
|
|
| 7 immagini su 1 pagina(e) |
|
