Astronomy Hacks. Tips and Tools for Observing the Night Sky - Helion
ebook
Autor: Robert Bruce Thompson, Barbara Fritchman ThompsonISBN: 978-14-919-2624-6
stron: 412, Format: ebook
Data wydania: 2005-06-17
Księgarnia: Helion
Cena książki: 109,65 zł (poprzednio: 127,50 zł)
Oszczędzasz: 14% (-17,85 zł)
Why use the traditional approach to study the stars when you can turn computers, handheld devices, and telescopes into out-of-this-world stargazing tools? Whether you're a first timer or an advanced hobbyist, you'll find Astronomy Hacks both useful and fun. From upgrading your optical finder to photographing stars, this book is the perfect cosmic companion.This handy field guide covers the basics of observing, and what you need to know about tweaking, tuning, adjusting, and tricking out a 'scope. Expect priceless tips and tools for using a Dobsonian Telescope, the large-aperture telescope you can inexpensively build in your garage. Get advice on protocols involved with using electronics including in dark places without ruining the party.Astronomy Hacks begins the space exploration by getting you set up with the right equipment for observing and admiring the stars in an urban setting. Along for the trip are first rate tips for making most of observations. The hacks show you how to:
- Dark-Adapt Your Notebook Computer
- Choose the Best Binocular
- Clean Your Eyepieces and Lenses Safely
- Upgrade Your Optical Finder
- Photograph the Stars with Basic Equipment
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Spis treści
Astronomy Hacks. Tips and Tools for Observing the Night Sky eBook -- spis treści
- Astronomy Hacks
- Copyright
- Credits
- About the Authors
- Contributors
- Acknowledgments
- Preface
- Why Astronomy Hacks?
- How This Book Is Organized
- Conventions
- How to Contact Us
- Got a Hack?
- Safari Enabled
- 1. Getting Started
- Hacks 110
- Dont Give Up
- Join an Astronomy Club
- Safety First
- Stay Warm
- Avoid Alcohol
- Dress in Layers
- Keep Your Head and Neck Warm
- Keep Your Feet Warm
- Keep Your Hands Warm
- Drink Plenty of Warm Fluids
- Screen Yourself from the Wind
- Use Supplemental Heat Sources
- Dont Violate Observing Site Etiquette
- Dont Show a White Light After Dark
- Arrive Before Dark
- Plan Ahead When You Park
- Avoid Using Headlights After Dusk
- Dark Adapt Your Vehicle
- Dont Crowd Others
- Be Careful in the Dark
- Ask Before You Touch
- Use Headphones for Music
- Have Consideration for Others If You Smoke
- Avoid Alcohol
- Leave Young Children and Pets at Home
- Dont Be a Moocher
- Have Consideration for Others Time
- Dont Criticize Others Equipment
- Police Up Your Trash Before You Leave
- Never Leave One Vehicle Alone
- Do a White-Light Check If You Are the Last to Leave
- Be Prepared
- Backpacking Kit
- Car Kit
- Airline-Portable Kit
- Measure Your Entrance Pupil Size
- Choose the Best Binocular
- Key Binocular Characteristics
- Recommended Binoculars
- Choose the Best General-Purpose Telescope
- Scope Characteristics
- Scope Types
- Refractors.
- Dobsonian reflectors.
- Equatorially mounted reflectors.
- Catadioptrics.
- Choosing a Telescope
- Equip Yourself for Urban Observing
- Excellent Choices
- Bad Choices
- 2. Observing Hacks
- Hacks 1132
- See in the Dark
- Vision Modes
- Night Vision Fallacies
- Dark adaptation is all-or-nothing
- Pupil diameter is critical to dark adaptation
- A dim green light is the best choice for preserving night vision
- A bright red light destroys night vision
- Protect Your Night Vision from Local Lights
- Describe the Brightness of an Object
- Types of Magnitude
- Magnitude Ranges
- Variable Magnitudes
- Variable stars
- Solar system objects
- Visibility by Magnitude and Instrument
- Surface Brightness
- Identify Stars by Name
- Identify Stars by Catalog Designations
- The Bayer Catalog
- The Flamsteed Catalog
- Modern Stellar Catalogs
- Specialty Catalogs
- Know Your Constellations
- Understand Celestial Coordinate Systems
- Horizontal Coordinates
- Equatorial Coordinates
- Other Coordinate Systems
- Print Custom Charts
- Keep Your Charts at the Eyepiece
- Locate Objects Geometrically
- Learn to Star Hop
- Learn to See DSOs
- Learn Patience and Persistence
- Observe from a Dark Site
- Observe Objects When They Are High
- Dark Adapt Fully
- Use the Largest Instrument Available
- Use Averted Vision
- Keep Both Eyes Open
- Absorb Photons
- Tap the Tube
- Use Different Magnifications and Fields of View
- Focus Carefully
- Defocus Slightly to Locate Tiny Objects
- Use Nebula Filters to Increase Contrast
- Keep Looking
- Observe Shallow-Space Objects
- Things That Go Zip
- Things That Go Zoom and Phizz
- Things That Go DOH-DEE-DOH
- Slow Down, You Move Too Fast, Youve Got to Make the Evening Last
- Look It Over and Under, Up and Down
- Youll See More with Your Eyes
- New Ways of Seeing
- Learn Urban Observing Skills
- Urban Observing Targets
- Urban Observing Tips
- Sweep Constellations
- Maintain an Observing Notebook
- Creating and Using Observing Logs
- Develop an Organized Logging System
- Plan and Prepare for a Messier Marathon
- Planning Your Messier Marathon
- Choose a date
- Choose your observing site
- Develop your own sequence and schedule
- Preparing for Your Messier Marathon
- One-year lead-up
- One-month lead-up
- One-week lead-up
- One-day lead-up
- Planning Your Messier Marathon
- Run a Messier Marathon
- Final Preparations (Afternoon19:30)
- Group 1: Early Evening Objects (19:3020:30)
- Group 2: MidEvening Objects (20:3021:00)
- Break (21:0021:30)
- Group 3: Late Evening Objects (21:30Midnight)
- Nap (Midnight02:00)
- Group 4: Early Morning Objects (02:0004:00)
- Group 5: Final Objects (04:00Dawn)
- Photograph the Stars with Basic Equipment
- Discover and Name a New Planet
- 3. Scope Hacks
- Hacks 3343
- Center-Spot Your Mirror
- Clean Your Primary Mirror
- Eliminate Astigmatism
- Eliminate Diffraction Spikes and Increase Contrast
- Build a Film Can Collimating Tool
- Tune Your Newtonian Reflector for Maximum Performance
- Collimate Your Primary Mirror Quickly and Accurately
- Star-Collimate Your Scope
- Counterweight a Dobsonian Scope
- Improve Dobsonian Motions with Milk Jug Washers
- Upgrade Your Dobsonian Bearings
- 4. Accessory Hacks
- Hacks 4465
- Dark Adapt Your Notebook Computer
- Dark Adapt Your Vehicle
- Use a Barlow
- Determine Actual Barlow Magnification
- See More of the Sky
- Optimize Your Eyepiece Collection
- Eyepiece Characteristics
- Real-World Eyepieces
- Choosing an Eyepiece Set
- Chart Your Eyepiece Characteristics
- View Dim Objects in the Same Field as a Very Bright Object
- Clean Your Eyepieces and Lenses Safely
- Install a Unit-Power Finder
- Red-Dot Finders
- Bulls-Eye Finders
- Mounting a Unit-Power Finder
- Upgrade Your Optical Finder
- Align Your Finder
- Determine Your Optical Finders Field of View
- Determine Your True Field of View
- Drift Testing in Detail
- Drift Testing Your Finder
- Enhance Lunar and Planetary Contrast and Detail
- Enhancing Color Contrast
- Dimming the Image
- Enhance Nebular Contrast and Detail
- Dimming Background Skyglow
- Enhancing Nebular Contrast
- Blocking All But a Specified Wavelength
- Choosing Nebula Filters
- Specialty Filters
- Please Be Seated
- Stash Your Gear in a Photographers Vest or Fanny Pack
- Use a Voice Recorder for Logging
- Build or Buy an Equatorial Platform
- Make Your Computer Work for You
- Windows Planetarium Programs
- Linux and Mac OS X Planetarium Programs
- Astronomy Software in the Palm of Your Hand
- Features of Planetarium
- Views.
- Databases.
- Session planning.
- Log entries.
- Locating Objects Manually with Planetarium
- Using Planetarium with Manual Setting Circles
- Other Uses
- Bottom Line
- Features of Planetarium
- Index
- About the Authors
- Colophon
- Copyright