Plinius
Contents
Plinius
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Lat: 15.4°N, Long: 23.7°E, Diam: 43 km, Depth: 3.07 km, [/R%C3%BCkl%2024 Rükl: 24], [/Stratigraphy Eratosthenian] |
Table of Contents
LO4-085-h2
Images
LPOD Photo Gallery Lunar Orbiter Images Apollo Images
- Apollo 10's extraordinary oblique north looking Hasselblad frame AS10-31-4599 shows Plinius at the horizon, and [/Carrel Carrel] in the foreground. The hill west of [/Carrel Carrel] (in this online frame "below" [/Carrel Carrel]) is [/Ross Ross] Mu.
- Research: Danny Caes
Maps
([/LAC%20zone LAC zone] 60B1)LAC map Geologic map LM map LTO map
IAU page: Plinius
Description
Description: Elger
([/IAU%20Directions IAU Directions]) PLINIUS.--This magnificent object reminds one at sunrise of a great fortress or redoubt erected to command the passage between the [/Mare%20Tranquillitatis Mare Tranquillitatis] and the [/Mare%20Serenitatis Mare Serenitatis]. It is 32 miles in diameter, and is encompassed by a very massive rampart, rising at one peak on the W. to more than 6,000 feet above the interior, and displaying, especially on the S.W., and N., many spurs and buttresses. The exterior slopes at sunrise, and even when the sun is more than 10 deg. above the horizon, are seen to be traversed by wide and deep valleys. The S. glacis is especially broad, extending to a distance of 10 or 12 miles before it runs down to the level of the plain. The shape of the circumvallation, when it is fully illuminated, approximates very closely to that of an equilateral triangle with curved sides. There are two bright little craters on the outer slope, just below the summit ridge on the S.W., and another, larger, on the N. wall, in which it makes a prominent gap. The interior is considerably brighter than the surface of the surrounding Mare, and, a little S. of the centre, includes two crater-like objects with broken rims. These assume different aspects under different conditions of illumination, and it is only when the floor is lighted by a comparatively low morning sun, that their true character is apparent. On the N.E. quarter of the interior are two smaller distinct craters, and a square arrangement of ridges. On the N.W. there are some hillocks and minor elevations. The Plinius rills form an especially interesting system, and under favourable conditions may be seen in their entirety with a good 4 inch refractor, about the time when the morning terminator passes through [/Julius%20Caesar Julius Caesar]. They consist of three long fissures, originating amid the [/Montes%20Haemus Haemus] highlands, on the S. side of the [/Mare%20Serenitatis Mare Serenitatis], and diverging towards the E. The most southerly commences S.S.W. of the [/Promontorium%20Archerusia Acherusian promontory] (a great headland, 5,000 feet high, at the E. termination of the [/Montes%20Haemus Haemus] range), and, following a somewhat undulating course, runs up to the N. side of [/Dawes Dawes]. Under a low evening sun, I have remarked many inequalities in the width of that portion of it immediately N. of Plinius, which appear to indicate that it is here made up of rows of inosculating craters. The cleft north of this originates very near it, passes a little S. of the promontory, and runs to the W. edge of the plateau surrounding [/Dawes Dawes]. The third and most northerly cleft begins at a point immediately N. of the promontory, cuts through the S. end of the well-known Serpentine ridge on the [/Mare%20Serenitatis Mare Serenitatis], and, after following a course slightly concave to the N., dies out on the N. side of the plateau. This cleft forms the line of demarcation between the dark tone of the [/Mare%20Serenitatis Mare Serenitatis] and the light hue of the [/Mare%20Tranquillitatis Mare Tranquillitatis], traceable under nearly every condition of illumination, and prominent in all good photographs.
Description: Wikipedia
Additional Information
- Depth data from [/Kurt%20Fisher%20crater%20depths Kurt Fisher database]
- Pike, 1976: 3.07 km
- Westfall, 2000: 3.07 km
- Viscardy, 1985: 2.3 km
- [/Central%20peak%20composition Central peak composition]: A ([/Tompkins%20%26%20Pieters%2C%201999 Tompkins & Pieters, 1999])
- Central peak height is 0.9 km [/Sekiguchi%2C%201972 Sekiguchi, 1972]. - fatastronomer fatastronomer
- A rugged mountain at the bottom of the northwest rampart is 0.7 km tall [/Sekiguchi%2C%201972 Sekiguchi, 1972]. - fatastronomer fatastronomer
- The most northern part of Plinius' rim is depicted on the cover of the album Apollo: Atmospheres and Soundtracks by Brian Eno, Daniel Lanois, and Roger Eno (1982). The orbital handheld Hasselblad photograph (AS17-150-23069) looks great on the L.P.-edition which appeared in the early eighties! Danny Caes (see also: [/Promontorium%20Archerusia Promontorium Archerusia], [/Brackett Brackett], [/Dorsum%20Nicol Dorsum Nicol], [/Rimae%20Plinius Rimae Plinius], and [/Mare%20Serenitatis Mare Serenitatis]).
- A thermal anomaly crater, implying a youthful age - [/Moore%20et%20al%2C%201980 Moore et al, 1980]
- What sort of ghost-crater is Plinius B? (east-southeast of Plinius itself, about halfway between Plinius and Jansen). - DannyCaes DannyCaes Aug 20, 2017
Nomenclature
- Named for Gaius Plinius Secundus, (23 CE to August 24, 79 CE), better known as Pliny the Elder, an ancient author, natural philosopher and naval and military commander of some importance who wrote Naturalis Historia. He believed that "true glory consists of doing what deserves to be written, and writing what deserves to be read".
LPOD Articles
Bibliography
This page has been edited 1 times. The last modification was made by - tychocrater tychocrater on Jun 13, 2009 3:24 pm - afx3u2
