Goodacre is a lunar impact crater. It is located in the rugged southern highlands on the Moon's near side, and is attached to the north-northeastern part of the exterior of Gemma Frisius, a heavily worn and much larger formation. About two crater diameters to the north of Goodacre lies Pontanus.

Crater area in Selenochromatic image (Si)
Goodacre
Coordinates32°42′S 14°06′E / 32.7°S 14.1°E / -32.7; 14.1
Diameter46 km
Depth3.2 km
Colongitude346° at sunrise
EponymWalter Goodacre

The crater is named after British selenographer Walter Goodacre.[1]

The outer rim of this crater formation has become eroded by smaller impacts, and is heavily damaged along the southern side. The somewhat distorted satellite crater Goodacre G lies across the co-joined rims of Goodacre and Gemma Frisius. The interior floor has a small central rise and there is a small crater near the northern inner wall. A trace of ray material from Tycho lies along the southwest rim and forms a wispy line that crosses the central peak.

Satellite craters

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Goodacre crater and its satellite craters taken from Earth in 2012 at the University of Hertfordshire's Bayfordbury Observatory with the telescopes Meade LX200 14" and Lumenera Skynyx 2-1

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Goodacre.

Goodacre Latitude Longitude Diameter
B 31.8° S 13.7° E 9 km
C 32.3° S 14.2° E 5 km
D 33.4° S 15.0° E 8 km
E 32.9° S 15.5° E 6 km
F 31.9° S 14.6° E 5 km
G 33.3° S 13.9° E 16 km
H 32.8° S 16.1° E 4 km
K 30.9° S 13.5° E 11 km
P 34.0° S 16.7° E 22 km

References

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  1. ^ "Goodacre (crater)". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
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