Measurements of the solar radius in Antalya between 2001-2003

Kilic H., Golbasi O., Chollet F.

SOLAR PHYSICS, cilt.229, sa.1, ss.5-12, 2005 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 229 Sayı: 1
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1007/s11207-005-4999-1
  • Dergi Adı: SOLAR PHYSICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.5-12
  • Akdeniz Üniversitesi Adresli: Hayır

Özet

The results of the solar radius measurements from February 2001 to November 2003 with the solar astrolabe at the TUBITAK National Observatory are presented. The mean semi-diameter for the period, corrected for systematic effects such as the Fried parameter and the zenith distance, is found to be 959.29 +/- 0.01 arc sec. A comparison of the monthly averages of the solar radius with the monthly means of sunspot numbers shows that the semi-diameter of the Sun increases with an amplitude of 0.017 arc sec per year in opposite phase with solar cycle 23.