Invention
Spectroheliograph
Henri-Alexandre Deslandres, George Ellery Hale
Astronomical instrument used to photograph the Sun at a single wavelength of light
ByHenri-Alexandre Deslandres, George Ellery Hale
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🇺🇸Griffith Observatory and sunset.Image
🇺🇸Griffith observatory at blue hourImage
🇪🇸A historical, glass structure; museum, gallery.Image
🇦🇹On the top of Wien, horizon and sunset.Image
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🇪🇸silhouette of building during sunsetImage
🇪🇸Sun peaking over buildings in Puerta del Sol, Madrid.Image
🇪🇸Barcelona SunsetImage
🇪🇸The sun is setting behind a row of hedgesImage
🇪🇸Sunset over Madrid, SpainImage
🇺🇸a view of a city at sunset from the top of a buildingImage
🇪🇸The Palacio Real on a beautiful summer sunset.Image
🇩🇰People sun-gazing on a later summer day in front of Copenhagen's "The Playhouse" theaterImage
🇺🇸sunsets in LAImage
🇺🇸a city skyline at sunsetImageWorld tour
Same vibe, elsewhere
🇺🇸Los Angeles skyline at sunset.Image
🇬🇧Sunsets over the CityImage
🇪🇸Sunrise at barceloneta beachImage
🇺🇸An aerial view of a city at sunsetImage
🇵🇭SpoliariumImage
🇺🇸Golden Hour Sunset in Famous street in LAImage
🇪🇸Metropolis at nightImage
🇪🇸View of Madrid during the sunsetImage
🇮🇹A sunny day in a european city street.Image
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🇩🇰For a wider version of the photo see https://unsplash.com/photos/-48743Ubw_4
Rundetaarn in Copenhagen, built as an observatory 1637-1642. See http://www.rundetaarn.dk/en/the-towerImage
🇺🇸Winter sunsetImage
🇫🇷Effiel Tower at SunsetImage
🇺🇸DTLA Skyline as seen from the Griffith Observatory in Los Angeles.Image
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