Contact
S. Douglas Holland
sdholland777(at sign)yahoo.com
High Resolution Downloads – 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). Each download cost $10 and payment 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, but downloads may be used for personal, non-commercial purposes. Commercial 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 purposes without my concurrence.
Holland-Space, LLC website: www.holland-space.com
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