night sky photography © charles dorn capturing the heavens on film bella luna

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  • Slide 1
  • Night Sky Photography Charles Dorn Capturing the Heavens On Film Bella Luna
  • Slide 2
  • Night Sky Photography Earth's Moon is a singular unique satellite wholly created by the debris of a massive impact millions of years ago. Since man has occupied this planet he has looked in the night sky and marveled at the ever changing appearance of its surface. The Moon orbits at roughly 380,000 km. distance with a diameter of 3475 km., compared to Earth it is 27% smaller with a reflection magnitude at opposition of -12.7. The best views through a telescope are between the crescent and quarter phases when angled light from the sun makes the elevations appear sharp in relief. The two photos that follow were taken at different times to help illustrate the shadow line (terminator) and the change in view that can be seen on the surface along that edge. In the Moons early life the entire surface had been struck by thousands of giant meteors that created the many features of huge craters, and volcanism to fill in the large open plains (Mare-seas). These two features are the reason for the lighter (younger) and darker (older) soil reflection properties of the visible surface. Earth's Moon Charles Dorn
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  • Night Sky Photography Capturing The Heavens On Film 2 1 3 5 S N W E EARTH'S MOON DAY 6.5 AFTER NEW 1- Stofler crater 126km/ dia 2- Azophi crater 48km/ dia. 3- Mare Serenitatis 600km/ dia. 4- Eudoxus crater 67km/ dia. 5- Aristoteles crater- 87km/ dia. Photo taken on 400TX B/W 35mm film. Prime focus W/ 8 Schmidt- Cassegrain. w/SLR camera- f/stop= 2.8 Exposure time 1/125 sec. Charles Dorn 4
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  • Night Sky Photography Capturing the Heavens On Film N S EW 1 2 3 4 5 6 7 8 9 EARTH'S MOON DAY 3 AFTER FIRST QUARTER 1.Blancanus 110km.dia. 2.Tycho 85km.dia. 3.Mare Nubium 650km. dia. 4.Bullialdus 59km. dia. 5.Mare Tranquillitatis 549X780km. 6.Copernicus 93km./ dia. 7.Mare Serenitatis 660X600km. 8.Mare Imbrium 1150km. dia. 9.Montes Jura 450km.High Photo taken on 400TX B/W 35mm film. Prime Focus W/ 8Schmidt- Cassegrain. w/SLR camera- f/stop = 2.8, Exposure time 1/250 sec. Charles Dorn
  • Slide 5
  • Orion's Wonders Belt Sword - Nebula Charles Dorn Belt: 1)Lower = Zeta Ori, 1100 ly distant, Blue-white, Mag 2.0. 2) Center = Epsilon Ori 1200 ly distant, blue S.giant, mag 1.7. 3) Upper = Delta Ori 2300 ly distant, blue-white, mag. 2.2. Sword: 4) Top = NGC 1981 Open cluster, 1500 ly, Mag 8. 5) Middle = Theta Ori 1300 ly distant, Trapezium, mag 6.6. 6) Lower = Iota Ori 2000 ly distant, double star, mag 6. Extra: 7) Below Belt east Sigma Ori, mag 4, 1800 ly distant, triple star. 8) Below Belt west Eta Ori mag 5, 750 ly distant, bright double. 9)Low - south/west Tau Ori, mag 4, 555 ly distant. Night Sky Photography N E W S Photo taken on 400TX film, w/SLR camera, Tri-pod camera mount Exposure time = B 15 sec. f/stop 2.8 Age of negative caused center fogging RA. 5h 40m 00s Dec. -00d 18' 00
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  • Night Sky Photography Orion's Wonders N S E W 1 5 3 4 2 The constellation Orion has a number of double and a very impressive triple deep sky treasures. 1)The brightest star in Orion Ori is Rigel, (giants leg) at mag 0.1 and has a 7 mag companion. 910 ly, radius 7.8 , temp 11,000K. 2) Ori a 3.5 mag binary with >10separation, 560 ly, radius 8.6 , temp 11,900K. 3) Ori, Algiebba: multiple-variable, mag 3-5, 750 ly, binary