Blagg (crater)

Blagg
Lunar Orbiter 4 image
Coordinates1°18′N 1°30′E / 1.3°N 1.5°E / 1.3; 1.5
Diameter4.97 km (3.09 mi)[1]
Depth0.91 km (0.57 mi)[2]
Colongitude359° at sunrise
EponymMary A. Blagg
Oblique view facing west with Bruce at center and Blagg below center, from Apollo 10

Blagg is a tiny lunar impact crater located on the Sinus Medii, a small lunar mare near the center of the near side of the Moon.[3] This is a circular crater with limited degradation due to subsequent impacts. The crater diameter is 5.0 km,[1] and it descends 0.9 km below the surrounding mare surface.[2] To the east-southeast of Blagg is the irregular crater Rhaeticus, and northeast lies Triesnecker. Blagg is about 33 km to the east of the slightly larger Bruce.[4]

This crater is named after English astronomer Mary Adela Blagg (1858-1944).[1] She is remembered for her work on selenography and variable stars.[5] The crater name was incorporated into lunar nomenclature by Greek-French selenographer Félix C. Lamèch in 1934.[6] Its designation was formally adopted by the International Astronomical Union in 1935.[1]

References

  1. 1 2 3 4 "Blagg". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
  2. 1 2 Joshi, Maitri P. (February 2017). "Physical properties of lunar craters". Research in Astronomy and Astrophysics. 17 (3). id. 24. Bibcode:2017RAA....17...24J. doi:10.1088/1674-4527/17/3/24.
  3. ↑ Moore, Patrick (2001). On the Moon. Sterling Publishing Co. p. 205. ISBN 978-0-304-35469-6.
  4. ↑ Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. p. 59. ISBN 978-0-521-81528-4.
  5. ↑ Shears, Jeremy (October 2016). "Selenography and variable stars: Women & the RAS: Mary Blagg". Astronomy & Geophysics. 57 (5): 5.17 – 5.18. Bibcode:2016A&G....57e5.17S. doi:10.1093/astrogeo/atw179.
  6. ↑ Whitaker, Ewen A. (1999). Mapping and Naming the Moon. Cambridge University Press. pp. 168, 228. ISBN 978-0-521-62248-6.

Sources

  • Price, Fred W. (1988). The Moon Observer's Handbook. Cambridge University Press. ISBN 978-0-521-33500-3.
  • Rükl, Antonín (1990). Atlas of the Moon. Kalmbach Books. ISBN 978-0-913135-17-4.
  • Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 978-1-85233-193-1.
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