Characteristic features in Venus' nightside cloud-top temperature obtained by Akatsuki/LIR

Makoto Taguchi, Tetsuya Fukuhara, Masahiko Futaguchi, Mitsuteru Sato, Takeshi Imamura, Kazuaki Mitsuyama, Masato Nakamura, Munetaka Ueno, Makoto Suzuki, Naomoto Iwagami, George L. Hashimoto

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


Mid-infrared images of almost the entire Venus nightside hemisphere obtained by the Longwave Infrared Camera (LIR) onboard Akatsuki on December 9 and 10, 2010 reveal that the brightness temperature of the cloud-top ranges from 237. K in the cold polar collars to 243. K in the equatorial region, significantly higher than the values obtained by Venera 15. Other characteristic features of the temperature distributions observed are zonal belt structures seen in the middle and low latitudes and patchy temperature structures or quasi-periodic streaks extending in a north-south direction in the northern middle latitudes and southern low latitudes.

Original languageEnglish
Pages (from-to)502-504
Number of pages3
Issue number1
Publication statusPublished - May 2012


  • Atmospheres, Structure
  • Infrared observations
  • Venus, Atmosphere

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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