Mons Hadley

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Mons Hadley
Apollo 15 Rover, Irwin.jpg
Jim Irwin and the LRV from Apollo 15, with Mons Hadley in the background
Highest point
Elevation 9407 m (summit)[1]
Listing Lunar mountains
Coordinates 26°41′N 4°07′E / 26.69°N 4.12°E / 26.69; 4.12[2]
Location the Moon
Oblique view of Mons Hadley, including Hadley Rille (lower right), from orbit
Hadley C crater, with ejecta filling in part of Hadley Rille

Mons Hadley is a massif in the northern portion of the Montes Apenninus, a range in the northern hemisphere of the Moon. It has a height of 4,465 ft. above the adjacent plain and a maximum diameter of 25 km at the base.

To the southwest of this mountain is a valley that served as the landing site for the Apollo 15 expedition. To the southwest of this same valley is the slightly smaller Mons Hadley Delta (δ) peak with a height of about 3.5 km above the valley floor. To the west of these peaks is the sinuous Rima Hadley rille where the Fallen Astronaut memorial has been placed in memory of those astronauts who died in the advancement of space exploration.

These features were named after John Hadley.

Rima Hadley[edit]

This sinuous lunar rille follows a course generally to the northeast, toward the Mons Hadley peak, for which it is named. This feature is centered at selenographic coordinates 25.0° N, 3.0° E, and lies within a diameter of 80 km. It begins at the crater Béla, an elongated formation with the long axis oriented to the northwest.

Nearby craters[edit]

Selenographic features of Rima Hadley and its small craters

Four small craters near this rille have been assigned names by the IAU. These are listed in the table below.

Crater Coordinates Diameter Name source
Béla 24°42′N 2°18′E / 24.7°N 2.3°E / 24.7; 2.3 11 × 2 km Hungarian masculine name
Carlos 24°54′N 2°18′E / 24.9°N 2.3°E / 24.9; 2.3 4 km Spanish masculine name
Jomo 24°24′N 2°24′E / 24.4°N 2.4°E / 24.4; 2.4 7 km African masculine name
Taizo 24°42′N 2°12′E / 24.7°N 2.2°E / 24.7; 2.2 6 km Japanese masculine name

Satellite craters[edit]

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

Hadley Latitude Longitude Diameter
C 25.5° N 2.8° E 6 km

The crater Joy was formerly known as Hadley A, prior to being renamed by the IAU in 1973.[3]

See also[edit]


  1. ^ LTO-41B4 HadleyL&PI Lunar Topographic Orthophotomap
  2. ^ Mons Hadley, Gazetteer of Planetary Nomenclature, International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN)
  3. ^ Gazetteer of Planetary Nomenclature, International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN), Joy Feature 2851

External links[edit]