Document Details

Document Type : Article In Journal 
Document Title :
Estimation of the Solar Differential Rotation using Sunspots Observations of King Abdulaziz University Solar Observatory
تقدير دوران الشمس التفاضلي بإستخدام أرصاد البقع الشمسية التابعة لجامعة الملك عبد العزيز
 
Subject : Astronomy 
Document Language : Arabic 
Abstract : Here we describe in detail the way to estimate the differential solar rotation rate using sunspots observations. Measurements of sunspots (position and area) have been started at King Abdulaziz University Solar Observatory (KAAUSO) since 1985. We used signal spots which have lived for more than five days, so 300 single spots have been selected out of 950. Based on these measurements the differential solar rotation rate for all sunspots for the whole interval, 19851999, have been determined to be ?= 14.11 - 3.15 sin2 ? (deg/day), where f is the latitude on the solar surface.  
ISSN : 1012-1319 
Journal Name : Science Journal 
Volume : 15 
Issue Number : 1 
Publishing Year : 1423 AH
2003 AD 
Number Of Pages : 7 
Article Type : Article 
Added Date : Sunday, October 11, 2009 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
حسن باصره H. M. BASURAHResearcher  
ياسين المليكي Y. M. ALMLEAKYResearcher  
عبدالرحمن ملاويA. A. MALAWIResearcher  
عدنان جوهرجيA. A. GOHARJIResearcher  

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