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Photo courtesy of pleiade

BSA Astronomy Merit Badge. Photo courtesy of pleiade.org. Schedule. Photo courtesy of apod.nasa.gov. First Night. Intro to Astronomy Video PPT Section 1 Proper Clothing, Safe Observing, First Aid Light & Air Pollution Tools of the Trade Types of Telescopes

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Photo courtesy of pleiade

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  1. BSA Astronomy Merit Badge Photo courtesy of pleiade.org

  2. Schedule Photo courtesy of apod.nasa.gov

  3. First Night • Intro to Astronomy Video • PPT Section 1 • Proper Clothing, Safe Observing, First Aid • Light & Air Pollution • Tools of the Trade • Types of Telescopes • Instruments Used With Telescopes • Proper Care and Storage of Telescopes • Stars & Constellations • Observation Session

  4. Second Night • PPT Section 2 • Sun • Moon • Planets • Observation Session

  5. Third Night • Careers Star Party!!!

  6. Proper Clothing • Frequently below freezing • Thermal Underwear • Warm Pants and Shirt • Heavy Socks • Hat • Gloves (Not to limit Dexterity) • Winter Coat

  7. Safe Observing NEVER LOOK AT OR NEAR THE SUN, WITH OR WITHOUT A TELESCOPE OR BINOCULARS, WITHOUT PROPER SOLAR FILTERS IN PLACE!! • Methods for Safe Solar and Solar Eclipse Viewing • Glass or film style filters block 99.999% of light • Pinhole Projection • Solar Eclipse Glasses • NEVER POINT LASERS AT EYES OR FACE!

  8. First Aid • Hypothermia Due to Being Poorly Clothed • Frostbite • Dehydration • Snake Bites for Desert Areas • Damage to Eyes

  9. Hypothermia • Hypothermia is a medical emergency that occurs when your body loses heat faster than it can produce heat, causing a dangerously low body temperature. Normal body temperature is around 98.6 F (37 C). Hypothermia (hi-po-THUR-me-uh) occurs as your body temperature passes below 95 F (35 C). • When your body temperature drops, your heart, nervous system and other organs cannot work correctly. Left untreated, hypothermia eventually leads to complete failure of your heart and respiratory system and to death. • Hypothermia is most often caused by exposure to cold weather or immersion in a cold body of water. Primary treatments are methods to warm the body back to a normal temperature. • Be aware of conditions likely to lead to hypothermia. • Know the symptoms of hypothermia. • Get the victim into a warm room or shelter.

  10. Hypothermia Continued... Symptoms Treatment and Prevention Be gentle. When you are helping a person with hypothermia, handle him or her gently. Limit movements to only those that are necessary. Don't massage or rub the person. Excessive, vigorous or jarring movements may trigger cardiac arrest. Move the person out of the cold. Move the person to a warm, dry location if possible. If you're unable to move the person out of the cold, shield him or her from the cold and wind as much as possible. Remove wet clothing. If the person is wearing wet clothing, remove it. Cut away clothing if necessary to avoid excessive movement. Cover the person with blankets. Use layers of dry blankets or coats to warm the person. Cover the person's head, leaving only the face exposed. Insulate the person's body from the cold ground. If you're outside, lay the person on his or her back on a blanket or other warm surface. Monitor breathing. A person with severe hypothermia may appear unconscious, with no apparent signs of a pulse or breathing. If the person's breathing has stopped or appears dangerously low or shallow, begin cardiopulmonary resuscitation (CPR) immediately if you're trained. Share body heat. To warm the person's body, remove your clothing and lie next to the person, making skin-to-skin contact. Then cover both of your bodies with blankets. Provide warm beverages. If the affected person is alert and able to swallow, provide a warm, nonalcoholic, non-caffeinated beverage to help warm the body. Use warm, dry compresses. Use a first-aid warm compress (a plastic fluid-filled bag that warms up when squeezed), or a makeshift compress of warm water in a plastic bottle or a dryer-warmed towel. Apply a compress only to the neck, chest wall or groin. Don't apply a warm compress to the arms or legs. Heat applied to the arms and legs forces cold blood back toward the heart, lungs and brain, causing the core body temperature to drop. This can be fatal. Don't apply direct heat. Don't use hot water, a heating pad or a heating lamp to warm the person. The extreme heat can damage the skin or induce cardiac arrest. • Shivering • Clumsiness or lack of coordination • Slurred speech or mumbling • Stumbling • Confusion or difficulty thinking • Poor decision making, such as trying to remove warm clothes • Drowsiness or very low energy • Apathy, or lack of concern about one's condition • Progressive loss of consciousness • Weak pulse • Shallow breathing

  11. Dehydration • Astronomical observing seldom ever requires great physical exertion. Thus dehydration for astronomers likely will be caused by neglecting the need for drinking hydrating liquids. Still, You Should Know The Following: • Symptoms: • Dry, sticky mouth • Sleepiness or tiredness — children are • likely to be less active than usual • Thirst • Decreased urine output — no wet • diapers for three hours for infants and • eight hours or more without urination • for older children and teens • Few or no tears when crying • Dry skin • Headache • Constipation • Dizziness or lightheadedness • Treatment and Prevention: • If any symptoms are discovered rehydrate immediately. • Remember to drink plenty of fluids during extended observing sessions.

  12. Eye DamageA.K.A. Solar Retinopathy Symptoms Treatment and Prevention Always use safe observing methods when viewing eclipses or the sun No treatment can improve or speed-up recovery. • Immediate • Often none. No pain, vision loss • Within Days • Difficulty reading • Bending of straight lines • A dark patch in the vision • Changes to the way colors are seen • Long Term • Dark patches persist • 10% have significant loss • Total loss does not occur http://web.archive.org/web/20011109090415/http://moorfields.org.uk/ef-solret.html

  13. Frostbite Symptoms Treatment and Prevention Protect your skin from further exposure. Gradually warm frostbitten areas. Don't walk on frostbitten feet or toes if possible. Depending on severity see a doctor Dress in several layers of loose, warm clothing rather than a single layer. Wear a hat that fully covers your ears. Wear mittens rather than gloves • A slightly painful, prickly or itching sensation • Red, white, pale or grayish-yellow skin • Hard or waxy-looking skin • A cold or burning feeling • Numbness • Clumsiness due to joint and muscle stiffness • Blistering, in severe cases

  14. Light Pollution • What is it? • The International Dark-Sky Association (IDA) defines light pollution as: “Any adverse effect of artificial light including sky glow, glare, light trespass, light clutter, decreased visibility at night, and energy waste”.

  15. Light Pollution

  16. Air Pollution • What is it? • Air Pollution is any object or air current, large or small, which degrades seeing conditions. • What are the effects? • Air pollution will directly effect “seeing” • Atmospheric movement (air currents), particulates stirred up by wind, exhaust from factories, even heat emitted by a close passer-by will all decrease image contrast. • Visual and photographic detail suffers.

  17. Tools of the Trade

  18. Telescopes and Light Paths

  19. Telescope Mountings Altazimuth Equatorial Fork German Equatorial Dobsonian

  20. Telescope Pros and Cons Refracting Advantages* Easy to use and consistent due to the simplicity of design.* Good for distant terrestrial viewing* Excellent for lunar, planetary and binary stargazing especially with larger apertures* Sealed tube protects optics and reduces image degrading air currents* Rugged, need little or no maintenanceDisadvantages * Generally have small apertures, typically 3 to 5 inches* Less suited for viewing small and faint deep sky objects such as distant galaxies and nebulae* Heavier, longer and bulkier than equivalent aperture reflectors and catadioptrics* Limited practical usefulness* Good-quality refractors cost more per inch of aperture than any other kind of telescope.

  21. Telescope Pros and Cons • Advantages * Easy to use and even construct* Excellent for faint deep sky objects such as remote galaxies, nebulae and star clusters because of their larger apertures for light gathering.* Low in optical irregularities and deliver very bright images* Reasonably compact and portable* A reflector costs the least per inch of aperture compared to refractors and catadioptrics since mirrors can be produced at less cost than lensesDisadvantages* Generally, not suited for terrestrial applications* Slight light loss due to secondary obstruction when compared with refractors* The tube is open to the air, which means dust on the optics even if the tube is kept under wraps* Reflectors may require a little more care and maintenance Reflecting

  22. Telescope Pros and Cons • Advantages* Most versatile type of telescope* Best near focus capability of any type telescope* First-rate for deep sky observing or astrophotography with fast films or CCD's* Excellent for lunar, planetary and binary star observing plus terrestrial viewing and photography* Closed tube design reduces image degrading air currents* Compact and durableDisadvantages* More expensive than reflectors of equal aperture* Its appearance may not be suited to everybody's taste* Slight light loss due to secondary mirror obstruction compared to refractors Catadioptric

  23. Other Helpful Instruments... CCD Cameras Off-Axis Guider Computer Telrad Green Laser Pointer Filter Wheel Dew Heater Collimating Laser Dew Shield

  24. Aquarius • Abbreviation: Aqr • Genitive: Aquarii • Translation: The Water Bearer • Position in the Sky • Right Ascension: 23 hours • Declination: -15 degrees • Visible between latitudes 65 and -90 degrees • Best seen in October (at 9:00 PM) • Named Stars • SADALMELIK (Alpha Aqr) • Sadalsuud (Beta Aqr) • Sadalachbia (Gamma Aqr) • Skat (Delta Aqr) • Albali (Epsilon Aqr) • Ancha (Theta Aqr) • Situla (Kappa Aqr) • Messier Objects • M2 (globular cluster) • M72 (globular cluster) • M73 (system or astrerism of 4 stars)

  25. Aries • Abbreviation: Ari • Genitive: Arietis • Translation: The Ram • Position in the Sky • Right Ascension: 3 hours • Declination: 20 degrees • Visible between latitudes 90 and -60 degrees • Best seen in December (at 9:00 PM) • Named Stars • HAMAL (Alpha Ari) • Sharatan (Beta Ari) • Mesarthim (Gamma 2 Ari) • Botein (Delta Ari)

  26. Cancer • Abbreviation: Cnc • Genitive: Cancri • Translation: The Crab • Position in the Sky • Right Ascension: 9 hours • Declination: 20 degrees • Visible between latitudes 90 and -60 degrees • Best seen in March (at 9:00 PM) • Named Stars • Acubens (Alpha Cnc) • Altarf (Beta Cnc) • Asellus Borealis (Gamma Cnc) • AsellusAustralis (Delta Cnc) • Tegmen (Zeta 1 Cnc) • Messier Objects • M44 Praesepe, The Beehive Cluster (open cluster) • M67 (open cluster)

  27. Capricornus • Abbreviation: Cap • Genitive: Capricorni • Translation: The Sea Goat • Position in the Sky • Right Ascension: 21 hours • Declination: -20 degrees • Visible between latitudes 60 and -90 degrees • Best seen in September (at 9:00 PM) • Named Stars • Prima Giedi (Alpha 1 Cap) • SecundaGiedi (Alpha 2 Cap) • Dabih (Beta Cap) • Nashira (Gamma Cap) • DenebAlgedi (Delta Cap) • Alshat (Nu Cap) • Messier Objects • M30 (globular cluster)

  28. Gemini • Abbreviation: Gem • Genitive: Geminorum • Translation: The Twins • Position in the Sky • Right Ascension: 7 hours • Declination: 20 degrees • Visible between latitudes 90 and -60 degrees • Best seen in February (at 9:00 PM) • Named Stars • CASTOR (Alpha Gem) • POLLUX (Beta Gem) • ALHENA (Gamma Gem) • Wasat (Delta Gem) • Mebsuta (Epsilon Gem) • Mekbuda (Zeta Gem) • Propus (Eta Gem) • Propus (Iota Gem) • Tejat Posterior (Mu Gem) • Alzirr (Xi Gem) • Propus (1 Gem) • Messier Objects • M35 (open cluster)

  29. LeoAbbreviation: Leo • Genitive: Leonis • Translation: The Lion • Position in the Sky • Right Ascension: 11 hours • Declination: 15 degrees • Visible between latitudes 90 and -65 degrees • Best seen in April (at 9:00 PM) • Named Stars • REGULUS (Alpha Leo) • DENEBOLA (Beta Leo) • ALGIEBA (Gamma 1 Leo) • Zosma (Delta Leo) • RasElasedAustralis (Epsilon Leo) • Adhafera (Zeta Leo) • Chort (Theta Leo) • Al Minliar al Asad (Kappa Leo) • Alterf (Lambda Leo) • RasElased Borealis (Mu Leo) • Subra (Omicron Leo) • Messier Objects • M65 (spiral galaxy) • M66 (spiral galaxy) • M95 (spiral galaxy) • M96 (spiral galaxy) • M105 (elliptical galaxy)

  30. Libra • Abbreviation: Lib • Genitive: Librae • Translation: The Beam Balance • Position in the Sky • Right Ascension: 15 hours • Declination: -15 degrees • Visible between latitudes 65 and -90 degrees • Best seen in June (at 9:00 PM) • Named Stars • Zuben Elgenubi (Alpha 2 Lib) • Zuben Elschemali (Beta Lib) • Zuben Elakrab (Gamma Lib) • Zuben Elakribi (Delta Lib) • Brachium (Sigma Lib)

  31. Ophiuchus • Abbreviation: Oph • Genitive: Ophiuchii • Translation: The Serpent Holder • Position in the Sky • Right Ascension: 17 hours • Declination: 0 degrees • Visible between latitudes 80 and -80 degrees • Best seen in July (at 9:00 PM) • Named Stars • RASALHAGUE (Alpha Oph) • Cebalrai (Beta Oph) • Yed Prior (Delta Oph) • Yed Posterior (Epsilon Oph) • Sabik (Eta Oph) • Marfic (Lambda Oph) • Messier Objects • M9 (globular cluster) • M10 (globular cluster) • M12 (globular cluster) • M14 (globular cluster) • M19 (globular cluster) • M62 (globular cluster) • M107 (globular cluster)

  32. Pisces • Abbreviation: Psc • Genitive: Piscium • Translation: The Fishes • Position in the Sky • Right Ascension: 1 hour • Declination: 15 degrees • Visible between latitudes 90 and -65 degrees • Best seen in November (at 9:00 PM) • Named Stars • Alrisha (Alpha Psc) • Fum al Samakah (Beta Psc) • TorcularisSeptentrionalis (Omicron Psc) • Messier Objects • M74 (spiral galaxy)

  33. Sagittarius Abbreviation: Sgr • Genitive: Sagittarii • Translation: The Archer • Position in the Sky • Right Ascension: 19 hours • Declination: -25 degrees • Visible between latitudes 55 and -90 degrees • Best seen in August (at 9:00 PM) • Messier Objects • M8 The Lagoon Nebula (diffuse nebula) • M17 The Omega, Swan, or Horseshoe Nebula (diffuse nebula) • M18 (open cluster) • M20 The Triffid Nebula (diffuse nebula) • M21 (open cluster) • M22 (globular cluster) • M23 (open cluster) • M24 Milky Way Patch (star cloud with open cluster) • M25 (open cluster) • M28 (globular cluster) • M54 (globular cluster) • M55 (globular cluster) • M69 (globular cluster) • M70 (globular cluster) • M75 (globular cluster)

  34. ScorpiusAbbreviation: Sco • Genitive: Scorpii • Translation: The Scorpion • Position in the Sky • Right Ascension: 17 hours • Declination: -40 degrees • Visible between latitudes 40 and -90 degrees • Best seen in July (at 9:00 PM) • Named Stars • ANTARES (Alpha Sco) • Graffias (Beta 1 Sco) • Dschubba (Delta Sco) • Sargas (Theta Sco) • SHAULA (Lambda Sco) • Jabbah (Nu Sco) • Grafias (Xi Sco) • Alniyat (Sigma Sco) • Alniyat (Tau Sco) • Lesath (Upsilon Sco) • Messier Objects • M4 (globular cluster) • M6 The Butterfly Cluster (open cluster) • M7 Ptolemy's Cluster (open cluster) • M80 (globular cluster)

  35. Taurus • Abbreviation: Tau • Genitive: Tauri • Translation: The Bull • Position in the Sky • Right Ascension: 4 hours • Declination: 15 degrees • Visible between latitudes 90 and -65 degrees • Best seen in January (at 9:00 PM) • Named Stars • ALDEBARAN (Alpha Tau) • ALNATH (Beta Tau) • Hyadum I (Gamma Tau) • Hyadum II (Delta 1 Tau) • Ain (Epsilon Tau) • ALCYONE (Eta Tau) • Celaeno (16 Tau) • Electra (17 Tau) • Taygeta (19 Tau) • Maia (20 Tau) • Asterope (21 Tau) • Sterope II (22 Tau) • Merope (23 Tau) • Atlas (27 Tau) • Pleione (28 Tau) • Messier Objects • M1 The Crab Nebula (supernova remnant) • M45 The Pleiades (The Seven Sisters), or Subaru (open cluster)

  36. VirgoAbbreviation: Vir • Genitive: Virginis • Translation: The Maiden • Position in the Sky • Right Ascension: 13 hours • Declination: 0 degrees • Visible between latitudes 80 and -80 degrees • Best seen in May (at 9:00 PM) • Named Stars • SPICA (Alpha Vir) • Zavijah (Beta Vir) • Porrima (Gamma Vir) • Auva (Delta Vir) • VINDEMIATRIX (Epsilon Vir) • Heze (Zeta Vir) • Zaniah (Eta Vir) • Syrma (Iota Vir) • Rijl al Awwa (Mu Vir) • Messier Objects • M49 (elliptical galaxy) • M58 (spiral galaxy) • M59 (elliptical galaxy) • M60 (elliptical galaxy) • M61 (spiral galaxy) • M84 (elliptical galaxy) • M86 (elliptical galaxy) • M87 Virgo A (elliptical galaxy) • M89 (elliptical galaxy) • M90 (spiral galaxy) • M104 The Sombrero Galaxy (spiral galaxy)

  37. Andromeda Abbreviation: And Genitive: Andromedae Translation: Princess of Ethiopia or the Chained Lady Position in the Sky Right Ascension: 1 hour Declination: 40 degrees Visible between latitudes 90 and -40 degrees Best seen in November (at 9:00 PM) Named Stars ALPHERATZ (Alpha And) MIRACH (Beta And) ALMAAK (Gamma 1 And) Adhil (Xi And) Messier Objects M31 The Andromeda Galaxy (spiral galaxy) M32 Satellite galaxy of Andromeda (elliptical galaxy) M110 Satellite galaxy of Andromeda (elliptical galaxy)

  38. Canes Venatici • Abbreviation: CVn • Genitive: CanumVenaticorum • Translation: The Hunting Dogs • Position in the Sky • Right Ascension: 13 hours • Declination: 40 degrees • Visible between latitudes 90 and -40 degrees • Best seen in May (at 9:00 PM) • Named Stars • COR CAROLI (Alpha 2 CVn) • Chara (Beta CVn) • Messier Objects • M3 (globular cluster) • M51 The Whirlpool Galaxy (spiral galaxy) • M63 The Sunflower Galaxy (spiral galaxy) • M94 (spiral galaxy) • M106 (spiral galaxy)

  39. Cassiopeia • Abbreviation: Cas • Genitive: Cassiopeiae • Translation: Queen of Ethiopia or Andromeda's Mother • Position in the Sky • Right Ascension: 1 hour • Declination: 60 degrees • Visible between latitudes 90 and -20 degrees • Best seen in November (at 9:00 PM) • Named Stars • SHEDIR (Alpha Cas) • Caph (Beta Cas) • Ruchbah (Delta Cas) • Segin (Epsilon Cas) • Achird (Eta Cas) • Marfak (Theta Cas) • Marfak (Mu Cas) • Messier Objects • M52 (open cluster) • M103 (open cluster)

  40. Coma Berenices • Abbreviation: Com • Genitive: ComaeBerenices • Translation: Berenice's Hair • Position in the Sky • Right Ascension: 13 hours • Declination: 20 degrees • Visible between latitudes 90 and -60 degrees • Best seen in May (at 9:00 PM) • Named Stars • Diadem (Alpha Com) • Messier Objects • M53 (globular cluster) • M64 The Blackeye Galaxy (spiral galaxy) • M85 (elliptical galaxy) • M88 (spiral galaxy) • M91 (spiral galaxy) • M98 (spiral galaxy) • M99 (spiral galaxy) • M100 (spiral galaxy)

  41. Cygnus • Abbreviation: Cyg • Genitive: Cygni • Translation: The Swan or the Northern Cross • Position in the Sky • Right Ascension: 21 hours • Declination: 40 degrees • Visible between latitudes 90 and -40 degrees • Best seen in September (at 9:00 PM) • Named Stars • DENEB (Alpha Cyg) • ALBIREO (Beta 1 Cyg) • Sadr (Gamma Cyg) • GienahCygni (Epsilon Cyg) • Azelfafage (Pi 1 Cyg) • Ruchba (Omega 2 Cyg) • Messier Objects • M29 (open cluster) • M39 (open cluster)

  42. Orion Abbreviation: Ori • Genitive: Orionis • Translation: The Great Hunter • Position in the Sky • Right Ascension: 5 hours • Declination: 5 degrees • Visible between latitudes 85 and -75 degrees • Best seen in January (at 9:00 PM) • Named Stars • BETELGEUSE (Alpha Ori) • RIGEL (Beta Ori) • BELLATRIX (Gamma Ori) • MINTAKA (Delta Ori) • ALNILAM (Epsilon Ori) • ALNITAK (Zeta Ori) • Nair al Saif (Iota Ori) • SAIPH (Kappa Ori) • Meissa (Lambda Ori) • Tabit (Pi 3 Ori) • Tabit (Pi 2 Ori) • Tabit (Pi 4 Ori) • Tabit (Pi 1 Ori) • Thabit (Upsilon Ori) • Messier Objects • M42 The Great Orion Nebula (diffuse nebula) • M43 part of the Orion Nebula, de Mairan's Nebula (diffuse nebula) • M78 (diffuse nebula)

  43. PerseusAbbreviation: Per • Genitive: Persei • Translation: The Hero • Position in the Sky • Right Ascension: 3 hours • Declination: 45 degrees • Visible between latitudes 90 and -35 degrees • Best seen in December (at 9:00 PM) • Named Stars • MIRPHAK (Alpha Per) • ALGOL (Beta Per) • Miram (Eta Per) • Menkib (Xi Per) • Atik (Omicron Per) • GorgoneaSecunda (Pi Per) • GorgoneaTertia (Rho Per) • GorgoneaQuarta (Omega Per) • Messier Objects • M34 (open cluster) • M76 The Little Dumbell, Cork, or Butterfly (planetary nebula)

  44. Ursa Major Abbreviation: UMa • Genitive: UrsaeMajoris • Translation: The Greater Bear • Position in the Sky • Right Ascension: 11 hours • Declination: 50 degrees • Visible between latitudes 90 and -30 degrees • Best seen in April (at 9:00 PM) • Named Stars • DUBHE (Alpha UMa) • MERAK (Beta UMa) • PHAD (Gamma UMa) • MEGREZ (Delta UMa) • ALIOTH (Epsilon UMa) • MIZAR (Zeta UMa) • ALKAID (Eta UMa) • Messier Objects • M40 Winecke 4 (double star) • M81 Bode's Galaxy or Bode's Nebula (spiral galaxy) • M82 The Cigar Galaxy (irregular galaxy) • M97 The Owl Nebula (planetary nebula) • M101 The Pinwheel Galaxy (spiral galaxy) • M108 (spiral galaxy) • M109 (spiral galaxy)

  45. Ursa Minor Abbreviation: UMi • Genitive: UrsaeMinoris • Translation: The Lesser Bear • Position in the Sky • Right Ascension: 15 hours • Declination: 70 degrees • Visible between latitudes 90 and -10 degrees • Best seen in June (at 9:00 PM) • Named Stars • POLARIS (Alpha UMi) • KOCAB (Beta UMi) • Pherkad (Gamma UMi) • Yildun (Delta UMi) • Pherkad Minor (11 UMi)

  46. Our Solar System

  47. The Sun Just The Facts Equatorial Radius English: 432,168.6 miles By Comparison: 109.2 x that of Earth Equatorial Circumference English: 2,715,395.6 miles By Comparison: 1092 x that of Earth Volume English: 338,102,469,632,763,000 mi3 By Comparison: 1,301,018.805 Earths Mass English: 4,385,214,857,119,400,000,000,000,000,000 lbs By Comparison: 333,060.402 x Earth's Density Metric: 1.409 g/cm3 By Comparison: 0.256 that of Earth Effective Temperature English: 9939 °F Spectral Type: G2 V Luminosity: 3.83 x 10 33 ergs/sec. Age: 4.6 Billion Years Composition: 92.1% Hydrogen, 7.8%Helium  Rotation Period at Equator: 26.8 days Rotation Period at Poles: 36 days Mean Distance to Earth: 149.60 million km (92.96 million mi) (1 astronomical unit) Photo in H-alpha By: Alan Friedman

  48. By Compari-SUN

  49. The Sun...Still Continued... Solar Cycle: 11 year cycle in which sunspots are either increasing to a maximum or decreasing to a minimum. The number of sunspots relates to the increase or decrease of solar storms. • Effects on Electrical and Comm. Systems • Electrical Surges • Blown Transformers • GPS Disruption • Other Satellite Malfunctions • Effects on Weather • Increased intensity of Storms • Aurora Borealis • Cloudiness

  50. The Moon

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