Search results
Results from the WOW.Com Content Network
The Bortle dark-sky scale (usually referred to as simply the Bortle scale) is a nine-level numeric scale that measures the night sky's brightness of a particular location. It quantifies the astronomical observability of celestial objects and the interference caused by light pollution .
John E. Bortle is an American amateur astronomer. He is best known for creating the Bortle scale to quantify the darkness of the night sky. Bortle has made a special study of comets. He has recorded thousands of observations relating to more than 300 comets. From 1977 until 1994 he authored the monthly '"Comet Digest" in Sky and Telescope magazine.
What links here; Related changes; Upload file; Special pages; Permanent link; Page information; Cite this page; Get shortened URL; Download QR code
Calamity James, a British comic book character from The Beano; Calamity Jane, a 1953 film based on the person; Calamity Town, a 1942 novel by Ellery Queen; The Calamity, a central plot point for the 2011 video game Bastion; Calamity, a mod for the 2011 video game Terraria "Calamity", a song by Zayn from his 2021 album Nobody Is Listening
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Help; Learn to edit; Community portal; Recent changes; Upload file
The Countess's Calamity is a 2003 children's book written and illustrated by Sally Gardner. [1] It won the Nestlé Smarties Book Prize Bronze Award. [ 2 ] It is the first of the Tales from the Box series about sentient toys.
Pessl wrote three drafts of the book, telling Kenyon Review that "each draft took about a year. It wasn’t so much that I was revising Blue’s voice or the language, but that I wanted to make sure the mystery worked perfectly, that all the twists and turns really worked.
Calamites is a genus of extinct arborescent (tree-like) horsetails to which the modern horsetails (genus Equisetum) are closely related. [1] Unlike their herbaceous modern cousins, these plants were medium-sized trees, growing to heights of 30–50 meters (100–160 feet). [2]