Contact
S. Douglas Holland
sdholland777(at sign)yahoo.com
Use of Images on this Site – High resolution, 16 bit per color, .TIF downloads are available for some of the pictures on this site (with and without nomenclature at bottom of image). Payment for downloads can be made via PayPal. Contact me at the address above to arrange your download. I reserve the rights to all images on this site. Commercial or private use of images on this site can be arranged by contacting me at the email address above. Note – The images on this site are lower quality versions of the originals and may be not used for any purpose without my concurrence.
Holland-Space, LLC – Electronic design and development for space systems, and amateur astronomy accessories.
Links
Handmade Polymer Clay Jewelry and Gifts
mkt.com/doxaria-designs
www.facebook.com/doxariadesigns
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Phoenix Nest, a spiritual retreat
http://www.retreatatphoenixnest.com
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Bahtinov Mask Generator
astrojargon.net/(X(1)S(ycaj1w450hloz4bsfwj0vmq5))/MaskGen.aspx?AspxAutoDetectCookieSupport=1
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Clear Sky Clock
cleardarksky.com/csk/
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Camera Lens Testing
www.photozone.de/canon-eos
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NASA Astronomy Picture of the Day
apod.nasa.gov/apod/
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The NASA Electronic Still Camera
https://www.timmchapman.com/gallery/nasa-nikon-f4-electronic-still-camera/
http://onevisionphoto.com/nasaF4ESC.htm
http://en.wikipedia.org/wiki/Nikon_NASA_F4
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JSC Astronomical Society
http://www.jscas.net
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Backyard Astronomy Basics (contributed by Liam Brown)
https://www.homeadvisor.com/r/home-science-backyard-astronomy/
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The 88 Constellations and Their Brightest Stars (contributed by BSA Troop 325)
https://sleepopolis.com/education/constellations-stars/
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Top 25 Public Observatories (contributed by James Cali)
https://www.publicrecordsreviews.com/education-center/top-25-public-observatories
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44 Closest Stars and How They Compare to Our Sun
https://www.alansfactoryoutlet.com/44-closest-stars-and-how-they-compare-to-our-sun
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Telescope Observation, including a breakdown on the study of astronomy, telescope types, observation tips for beginners (contributed by Amelia)
https://www.heartlandamerica.com/telescope-observation.html
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Constellation Guide – Includes the major constellations, where they are located, how they were named, associated mythology, and celestial objects located within (contributed by Tina Martin)
https://www.halloweencostumes.com/constellations-mythology.html
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Telecommunications Satellites and Space Exploration – Discusses the evolution of satellite communication: starting with the launch of Sputnik, improving with NASA’s developments and continuing to evolve with SpaceX’s Starlink (contributed by Annie Miller)
http://www.ooma.com/blog/telecommunications-satellites-and-space-exploration/
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Testmasters – Coupon Code / Promo Code – get $25 off any course offered by Testmasters by using this code: JH581