imaging the universe: is anyone else out there€¦ · starlight express sxv-h9 on 10" rc at...
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Imaging the Universe:
Is Anyone Else Out There
Robert J. Vanderbei
2013 February 20
Butler College Life Skills Seminar
http://www.princeton.edu/∼rvdb
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I’ve Always Loved Photography
DSLR on a Tripod
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What Got Me Interested in Astrophotography
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Fancier Equipment
1. Mount
2. CameraComputerSoftware
3. Telescope (OTA)
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Move equipment outside.
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Ready To Go...
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Small and Portable Alternative...
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Our Solar System
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SuperMoon...
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Daytime Moon
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Lunar Eclipse (2010 Dec. 21)
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Lunar Eclipse Montage
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Jupiter and Saturn
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Crescent Venus (Daytime!)
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Venus Approaches the Sun
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Venus Transit 2012
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Venus Transit Weather
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Jupiter in the Daytime
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Disclaimer:
The Pictures Are Better Than The “Visual” View
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Comets Come and Go...
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Lulin
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17P-Holmes
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Garradd
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Comet 103p Hartley and Double Cluster
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Nebulae In Our Home Galaxy (the Milky Way)
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Crab Nebula
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Lagoon Nebula
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Swan Nebula
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Dumbbell Nebula
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Orion Nebula X
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Orion Nebula—Close Up
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Orion Nebula—Driveway Version
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Orion Nebula—Hubble Space Telescope
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Orion in the Daytime Sep 9, 2007
Starlight Express SXV-H9 on 10” RC at f/9Hα (13 nm bandwidth)
06:20–06:22 EDT6× 5 seconds
SUNRISE at 06:23 EDT local time
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Starlight Express SXV-H9 on 10” RC at f/9Hα (13 nm bandwidth)
06:22–06:36 EDT33× 1 seconds
SUNRISE at 06:23 EDT local time
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Starlight Express SXV-H9 on 10” RC at f/9Hα (13 nm bandwidth)
06:36–06:47 EDT118× 0.2 seconds
SUNRISE at 06:23 EDT local time
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Starlight Express SXV-H9 on 10” RC at f/9Hα (13 nm bandwidth)
06:47–06:55 EDT110× 0.2 seconds
SUNRISE at 06:23 EDT local time
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Starlight Express SXV-H9 on 10” RC at f/9Hα (13 nm bandwidth)
06:55–07:03 EDT110× 0.1 seconds
SUNRISE at 06:23 EDT local time
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Back to Nighttime
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Running Man Nebula
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Rosette Nebula
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Rosette Nebula—Widefield
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Rosette Nebula—Driveway vs. Mt. Palomar
Driveway Mt. Palomar (48-inch)
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Pleiades aka Subaru
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Eagle Nebula
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Ring Nebula X
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Little Dumbbell Nebula
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Owl Nebula
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Pacman Nebula
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Eskimo Nebula
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Crescent Nebula
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Veil Nebula
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Bubble Nebula
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Horsehead Nebula
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Clusters Clustered Around The Milky Way
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Hercules Globular Cluster X
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M15
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Galaxies Beyond Our Milky Way
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M82 and M81 X
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Whirlpool Galaxy
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Whirlpool Galaxy—Supernova 2005cs
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Whirlpool Galaxy
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Whirlpool Galaxy—Supernova 2011dh
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Sombrero Galaxy X
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NGC 4565
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Deerlick Galaxy Cluster
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Is Anyone Else Out There?
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Why Astrophotography?
Long Exposures, Permanent Record, Digital Enhancement, Light Pollution!
Visual Experience Long Exposure
Light Pollution Subtracted
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Astronomical CCD camera
• Pixel size: 6.45× 6.45 microns
• Pixels: 1392 x 1040
• Quant. Eff.: ∼ 65%
• Readout Noise: ∼ 7 electrons
• Cooling: ∼ 30◦C below ambient
• Download: 3.5 seconds
• Format: 16 bit
• Weight: 350g
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Example
“Telescope”: 200mm f/3.5 Vivitar lens($30)
Mount: Questar
Camera: Starlight Express SXV-H9
Filter: Dichroic Hα
Fundamental Principles• Focal length determines field of view
• F-ratio determines exposure time
Total exposure time = 156 mins. Field of view = 2.5◦.
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Combatting Light Pollution
Narrow-Band Filters
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Visual Astronomy vs. Astrophotography
• Aperture determines photon flux
• Focal length determines field of view
• F-ratio determines exposure time
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Further Reading...
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Let The Movie Begin
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Backup Slides
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Biases