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A New Atlas?
Lat: 14.5°N, Long: 11.3°W, Diam: 58 km, Depth: 3.43 km,
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LPOD Photo Gallery
Lunar Orbiter Images
Apollo 12 oblique view
Lunar Orbiter 5's Frames 134,
, and 136 show near vertical close-up views of
and its central peak. Note the curious "twin domes" on Eratosthenes's floor!
Feb 4, 2014
The first 10 frames of Apollo 17's
Magazine 158/ WW
(35 mm Nikon) show a near-vertical view of
as it is seen in Earthlight.
Feb 4, 2014
See also: Additional Information, below.
The pair of bowl-shaped craters Eratosthenes A and B, south of Wallace:
This couple was captured near the left margin of Apollo 17's panoramic
The pair of bowl-shaped craters Eratosthenes D and E, north of Eratosthenes itself:
This couple was captured near the left margin of
Additional research orbital Apollo 17 photography: Danny Caes
ERATOSTHENES.--A noble ring-plain, 38 miles in diameter; a worthy termination of the
. The best view of it is obtained under morning illumination when the interior is about half-filled with shadow. At this phase the many irregular terraces on the inner slope of the W. wall (which rises at one peak 16,000 feet above an interior depressed 8,000 feet below the
) are seen to the best advantage. The central mountain is made up of two principal peaks, nearly central, from which two bright curved hills extend nearly up to the N.E. wall,--the whole forming a V-shaped arrangement. On the S. there is a narrow break in the wall, and the S.E. section of it seems to overlap and extend some distance beyond the S.W. section. The border on the S.E. is remarkable for the great width of its
. Eratosthenes exhibits a marked departure from circularity, especially on the W., where the wall consists of two well-marked linear sections, with an intermediate portion where the crest for 20 miles or more bends inwards or towards the centre. From the S.W. flank of this formation extends towards the E. side of
one of the grandest mountain arms on the moon's visible surface, rising at one place 9,000 feet, and in two others 5,000 and 3,000 feet respectively above the
) . If this magnificent object is observed when the morning terminator falls a little W. of
, it affords a spectacle not easily forgotten. I have often seen it at this phase when its broad mass of shadow extended across the well-known crater-row E. of
, some of the component craters appearing between the spires of shade representing the loftiest peaks on the mountain arm. There is a prominent little crater on the crest of the arm between two of the peaks, and another on the plain to the east.
Depth data from
Kurt Fisher database
Pike, 1976: 3.43 km
Westfall, 2000: 3.43 km
Viscardy, 1985: 3.57 km
Cherrington, 1969: 3.74 km
West rim slope 47° (
Central peak composition
: A, GNTA1, GNTA2 & AGN (
Tompkins & Pieters, 1999
Sekiguchi provides a wonderful map with measured interior features. The tallest peak rises 1.2 km above the crater floor
Moore et al, 1980
report a thermal anomaly feature at a dome near
. Domes are unlikely to be young, nor to have steep slopes, so it is unusual that one would be a thermal cooling anomaly.
The type crater for the, Eratosthenian
in lunar history.
During the mission of Apollo 17 in december 1972, crater
was photographed in earthlight. This happened when CSM
was directly above Eratosthenes, when the lunar sunrise-terminator was still too eastward. These earthlight photographs are included in Apollo 17's Magazine 158-WW (35mm NIKON B&W photographs), see:
Sheet 8 of A17's Index Maps
. Some of those photographs were reproduced in the
Apollo 17 Preliminary Science Report
Dec 22, 2007
TSI = 35, CPI = 20, FI = 20; MI =75
Smith and Sanchez, 1973
: Those who want to create a large assembled moonmap of Antonin Rukl's 76 small charts (of the moon's near side from his
Atlas of the Moon
) shall notice a shift of about one millimeter to the left at the northern half of
(on the lower margin of chart 21). The southern half of
(on the upper margin of chart 32) shows a shift of about one millimeter to the right. If you want to make enlarged photocopies of all 76 charts (say: at 200 percent of the original prints) keep in mind that the shift at
half a centimeter
(on charts 23 and 34) shows the same phenomenon.
Jul 27, 2011
Cattermole reported the disappearance of the central mountains of
on 11th May 1954, although the surrounding detail remained clearly visible. Source: V.A.Firsoff's
The Old Moon and the New
(1969), page 183.
May 19, 2012
(276 BC - 194 BC), a Greek mathematician, geographer and astronomer. He is noted for devising a system of latitude and longitude, and for being the first known to have calculated the circumference of the Earth.
This name has continued unchanged since its original usage for this feature on
's map (
, p. 212).
Eratosthenes Crater and the Lunar Timescale
Terraces in Eratosthenes Crater
Eratosthenes Central Peak
A Moth Lover's View of the Moon
One Crater’s Nomenclature
Albedo & rays
A Bucket of Darkness
Flat Out of Luck
Hill, Harold. 1991.
A Portfolio of Lunar Drawings
. pages 48, 49, 50.
Moore, P. 1955.
Life on the Moon
Irish Astronomical Journal
Vol 3 (5), pp. 134 - 135.
(recounts W. H. Pickering's speculations about vegetation in
Nicastro, N. 2008.
Circumference: Eratosthenes and the Ancient Quest to Measure the Globe
- St. Martin's Press, ISBN-13: 978-0312372477 .
(Good short book on little known early scientist who determined correct circumference of Earth and Earth-Sun distance.)
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