Doppler (crater)

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Crater characteristics
Doppler crater with Korolev basin at top, from the Apollo 17. NASA photo.
Coordinates	12.6° S, 159.6° W
Diameter	110 km
Depth	Unknown
Colongitude	161° at sunrise
Eponym	Christian Doppler

Doppler is a lunar impact crater that is located at the southern edge of the Korolev basin, on the far side of the Moon. To the east is the Das and Galois crater formation. Further to the southwest of Doppler is the Mohorovičić crater.

The rim of Doppler has a somewhat polygonal form, and a smaller crater is joined with the inner side of the northeast wall. The interior of Doppler is rough and irregular, with some terracing of the worn outer walls, and a complex of central hills to the north of the mid-point. The crater 'Doppler B' lies within the northern rim, and occupies a portion of the northern floor. A small, crater-formed valley runs to the southeast across the floor of Doppler from the rim of 'Doppler B'.

[edit] Satellite craters

By convention these features are identified on lunar maps by placing the letter on the side of the crater mid-point that is closest to Doppler crater.

Doppler	Latitude	Longitude	Diameter
B	11.8° S	159.4° W	37 km
M	15.4° S	160.0° W	25 km
N	16.9° S	160.5° E	17 km
W	11.0° S	161.7° W	15 km
X	10.3° S	161.3° W	18 km

[edit] References

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• Blue, Jennifer (July 25, 2007). Gazetteer of Planetary Nomenclature. USGS. Retrieved on 2007-08-05.
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• Whitaker, Ewen A. (1999). Mapping and Naming the Moon. Cambridge University Press. ISBN 0-521-62248-4. 
• Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 1852331933.