day_13 - September 29, 2010 Exam 2 This Friday. Review...

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September 29, 2010 Exam 2 This Friday. Review sheet posted. Review Thursday 5 PM Waggener 214, South of Welch Hall Reading, Sections 6.4, 6.5, 6.6. Sections 1.2, 2.1, 2.4, 2.5, 3.3, 3.4, 3.5, 3.10 (binary stars), 4.1, 4.2, 4.3, 4.4 (accretion disks), 5.2, 5.4 (cataclysmic variables) for background Chapter 7 will be on 3 rd exam. Astronomy in the News? Senator Kay Bailey Hutchinson brokers a deal to fund NASA Pic of the Day – Fly me to the Moon, let me sing among those stars. Let me see what spring is like, on Jupiter and Mars…
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Sky Watch Objects mentioned so far Lyra - Ring Nebula, planetary nebula in Lyra Cat’s Eye Nebula, planetary nebula in constellation Draco Sirius - massive blue main sequence star with white dwarf companion Algol - binary system in Perseus Vega - massive blue main sequence star in Lyra Antares - red giant in Scorpius Betelgeuse - Orion, Red Supergiant due to explode “soon” 15 solar masses Rigel - Orion, Blue Supergiant due to explode later, 17 solar masses Aldebaran - Bright Red Supergiant in Taurus, 2.5 solar masses (WD not SN) Castor, Rigel - massive blue main sequence stars Capella, Procyon - on their way to becoming red giants
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SS Cygni - brightest dwarf novae in the sky, Cygnus, U Geminorum - dwarf nova in Gemini CP Pup, classical nova toward constellation Puppis in 1942 Pup 91, classical nova toward Puppis in 1991
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day_13 - September 29, 2010 Exam 2 This Friday. Review...

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