PPT-Sunspots

Wesley Toler Notes Sunspot TRACE Licensed under Public domain via Wikimedia Commons httpcommonswikimediaorgwikiFileSunspotTRACEjpegmediaviewerFileSunspotTRACEjpeg What are sunspots. FAQ's Home Safety Information Instructions Dealer Locator Solar Chat News Meade Coronado: 1674 South Research Loop Suite 436, Tucson Arizona, 85710 Telephone: (949) 451-1450 ext. 239, Fax: Approx. sizeof Earth Sunspots, which usually appear in groups,can grow to many times the size of Earth Approx. sizeof Earth The Sun and the Stars. The Sun and the Stars. Limb darkening. The surface of the sun does not have uniform brightness, it appears bright toward the centre, darker towards the edges, and the colour is redder, an effect known as Limb darkening - why?. Solar Prominence. Sun Fact Sheet. The Sun is a normal G2 star, one of more than 100 billion stars in our galaxy.. . Diameter: . 1,390,000 km. (Earth 12,742 km or nearly 100 times smaller). Mass: . 1.1989 x 10. Sunspots. – regions of strong magnetic activity. Sunspots are cooler than the rest of the photosphere and appear as dark splotches on the Sun. They seem to move across the Sun as the Sun rotates. The number of sunspots changes over time. They follow a cycle, peaking in number every 11 years. An average sunspot is about the size of Earth.. The story of sunspots. Dr. Lyndsay Fletcher, University of Glasgow. Image: Bill Leslie, Forres. The first recorded observation. Photocredit: Michael Myers. 364 BC – Chinese astronomer Gan-De records a darkening on the face of the Sun.. 16.1 Physical Properties of the Sun. 16.2 The Solar Interior. . SOHO. : Eavesdropping on the Sun. 16.3 The Sun’s Atmosphere. 16.4 Solar Magnetism. 16.5 The Active Sun. Solar. –. Terrestrial Relations. 关键词. : . called/known as/named/refer to as ... . 定义. +. 功能. /. 特征. 引出. 新事物. TPO26.2.10 . What . is the professor’s opinion about the name “parabolic-orbit comets” ? . Frédéric. . Clette. & Laure . Lefèvre. . Royal Observatory of Belgium. WDC - SILSO. ESWW11 – Nov 2014. SN and GN . recalibration. : . early. . preview. 21/11/2014. ESWW11 – Nov. 2014. 2. What Changes Are Visible?. David DuByne. ADAPT 2030. THANK YOU . TO ALL OF MY PATREON SUPPORTERS. As the Sun goes through its regular 11 solar cycle there are variances of strength in energy out put. Incredibly low periods are termed “Grand Solar Minimums”. Luminosity and . Our Climate. . The layers of the sun; core, radiative zone, convective zone, photosphere, chromosphere, and corona. Sunspots and magnetic fields, the sunspot cycle. Solar activity and how it influences the Earth. . Here’s the Story I’ll Unfold for you…. What’s it made of?. A star: self-supporting partially ionized gas balancing gravity w/ pressure. Nuclear fusion and how it powers the sun. The layers of the sun; core, radiative zone, convective zone, photosphere, chromosphere, and corona. Luminosity and . Our Climate. . The layers of the sun; core, radiative zone, convective zone, photosphere, chromosphere, and corona. Sunspots and magnetic fields, the sunspot cycle. Solar activity and how it influences the Earth. CORE. The sun produces an enormous amount of energy in its core, or central region. The sun's energy comes from nuclear fusion. During nuclear fusion, hydrogen atoms join together to form helium. Nuclear fusion only can take place under conditions of extremely high pressure and temperature. The temperature inside the sun's core reaches 15 million C, high enough for nuclear fusion to take place. .