NVO and The Advanced Planetarium.

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Graciousness The LNP Planetarium Compendium, Loch Ness Productions, 2000 ... Aurora Borealis Center - Watson Lake, Yukon. National Air and Space Museum - DC. Adler ...
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NVO and The Digital Planetarium Ed Lantz Product Development supervisor Spitz, Inc. NVO Outreach Workshop July 11, 2002

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Dome Theaters Traditional Planetarium Large-Format Film Theater Digital Planetarium

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Traditional Planetaria Hemispheric Projection Screen Starfield Projector High-determination cosmic reproduction Hemispheric Slide Projection or "All Skys" Narrow Field Video is Common Laser Graphics - Full or Partial Dome Combination Large-Format Film, Planetarium Total Annual Attendance Worldwide: 87,400,000

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Planetarium Facts Planetarium Worldwide % of Classification # of Theaters Total School/District 999 36% University/College 397 14% Museum/Science Center 375 14% Observatory/Other 201 7% Unclassified 782 28% TOTAL 2754 * Courtesy The LNP Planetarium Compendium, Loch Ness Productions, 2000

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Planetarium Facts Dome Size (m) # of Theaters # Tilted Domes 3 - 6 766 2 6 - 9 696 3 9 - 12 463 9 12 - 15 191 23 15 - 18 98 17 18 - 21 102 34 21 - 27 80 40 Portable 774 * Courtesy The LNP Planetarium Compendium, Loch Ness Productions, 2000

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Large-Format Film Theater Hemispheric Projection Screen Tilted 20-30º regularly Large-Format Film 15-perf, 70mm (unique IMAX® design) 8-perf, 70mm (progressively famous arrangement) Dome Diameters from 15m to 28m+ 254 LF Theaters Worldwide - Half are Domes* 175 Large-Format Films Released* * From White Oak Associates, Inc. Stock of Large Format Theaters, 1998 release

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Digital Planetarium Full Dome or Partial Dome Video Projection Multiple Edge-Blended Projectors or Fisheye CRT, DLP, LCoS projector advancements 30+ Existing/Planned Theaters by 7 Manufacturers Most Use Pre-Rendered, Pre-Recorded Shows Hi-res computerized video illustrations advances Realtime 3D Interactive Becoming Affordable

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Digital Dome Manufacturers Evans & Sutherland - Salt Lake City, UT GOTO Optical - Japan Spitz, Inc. - Chadds Ford, PA Sky-Skan - Nashua, NH Trimension, Inc. - Burgess Hill, UK Silicon Graphics/Zeiss/Schneider Minolta - Japan

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Sampling of Digital Planetaria AMNH/Rose Center - New York City Bibliotheca Alexandria - Alexandria, Egypt Burke Baker Planetarium - Houston, Texas Exploration Place - Wichita, Kansas National Space Center - Leicester, UK LodeStar Planetarium - Albuquerque, NM Northern Lights Center - Watson Lake, Yukon National Air and Space Museum - DC Adler Planetarium - Chicago

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Sampling of Digital Planetaria Bibliotheca Alexandria, Egypt LodeStar Planetarium Albuquerque, NM

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Spherical Projection Formats Single Projector (Fisheye) Edge-Blended Projectors

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Edge-Blended Projection Polar Source is Split Into Sub-Frames and Edge-Blended Sub Frame 1 Sub Frame 2 Sub Frame 3 Sub Frame 4

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Fisheye Projection Polar Fisheye Source Image Simple Configuration Limited Hemispheric Resolution (2048x1536 pixels) Requires Projector Inside Theater Space

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Feeding the Digital Planetarium Astronomical Visualization Night sky perception Naked eye and profound sky 3D representation and recreation Astrophysical models Digital Galaxy, Cosmic Atlas, Deep Space Explorer, and so forth. Casual Educational Programming Need convincing, significant stories What is our place in the universe? What\'s out there? What does everything mean? My future, humankind\'s future Data inquiries & information elucidation Visualization information mining, designing

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Who Are We? Open Planetaria Science & space science instructors Media/creation staff Astronomers School Planetaria Science and cosmology teachers Show Producers Writers Art executives Animators Editors Musicians

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Graphics Formats Pre-Rendered Shows Dome expert organization Composited Images All-Sky Images Deep-Sky Objects Realtime 3D Texture maps Star/Object Data

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Pre-Rendered Shows Dome Master Formats Spherical mapping design Master group for chronicling, appropriation, and so forth. Free of specific projection geometry Defined just by determination, field-of-perspective, document sort autonomous of particular projection plan

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Polar Fisheye Master Longitude 0º +90º - 90º 0º Polar Fisheye (Azimuthal Equidistant) - 90º 180º

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Equidistant Cylindrical Master Equidistant Cylindrical +90º 0º Latitude - 90º - 180º 0º +180º Longitude

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Skinning a Sphere with Platonic Solids

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Cubic Master Advantage - Efficient File Format Disadvantage - Scene is Broken Up, Difficult to Preview

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Vis Needs: Pre-Rendered Shows All-Sky Images Celestial circle at all accessible wavelengths indicated coordinate framework compositing must be consistent, no missing information Numerous mappings worthy azimuthal equidistant (separate halves of the globe) equidistant round and hollow Hammer-Aitoff cubic Deep-Sky Objects Need adequate metadata!

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All-Sky Image Resolution Number of Pixels Required to Project Eye-Limited Resolution on Hemisphere: Number of Pixels = (0.5) (4  steradians) (57.3°/steradian) 2 (60 curve min/deg) 2 (0.5 circular segment min/pixel) 2 = 300 Million Pixels!!!

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All-Sky Image Resolution Fisheye Projection Systems 1024x1024 or 1536x1536 polar Edge-Blended Projection Systems up to 4000x4000 polar edge Highest Resolution All-Sky Images being used 14,000x7200 equidistant barrel shaped (3 arcmin) Nearly 300 MB record! Consistent Transition to High-Magnification Images Deep sky zoom with higher determination

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Deep Sky Objects Many Excellent Images Available from STScI/Aura Where Do They Go in the Night Sky??? Need Metadata! Picture precise tallness/width Image focus RA/Dec Image revolution w.r.t. divine directions Image shine/greatness? Evaluated object separation (for 3D frameworks) Simplified Search Capability a Plus

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Deep Sky Zoom

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Deep Sky Object Resolution Higher Resolutions permit Seamless Zooms 1024x1024 helpful 4000x4000 better 8000x8000 best!

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Image Formats Numerous Formats being used TARGA is as of now most well known organization Compression relics can be an issue High Dynamic Range Formats Needed Display dynamic reach restricted (1000:1) HDRI, Cineon, others…

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Other Ideas… Automated Downloads Solar climate Solar framework pictures, information Transient wonders Current earthbound/space based pictures & metadata "Edu" discharges – ebb and flow occasion things Connecting People & Resources Not all information is available online Queries can really drive future exploration Amateur cosmologist picture trade Astronomers have stories to tell… we require stories

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