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2. Orion Telescopes & Binoculars - Wikipedia

   en.wikipedia.org/wiki/Orion_Telescopes_&_Binoculars

   Orion ED120 apo refractor on Orion's Sirius EQ-G "GoTo" and GPS equipped German equatorial mount with portable 12 volt power supply. Orion sold a range of telescopes that they characterize as "beginner", "intermediate" or "advanced", including Newtonians, Maksutovs, Schmidt-Cassegrains, Ritchey-Chrétiens and refractors with or without (sold as optical tube assemblies or "OTA") a variety of ...

3. Astroscan - Wikipedia

   en.wikipedia.org/wiki/Astroscan

   The Astroscan had a Newtonian reflector layout with a 4 + 1 ⁄ 8 in (10 cm) clear-inch diameter f/4.2 aluminized and overcoated borosilicate glass parabolic primary mirror with a focal length of 17 + 1 ⁄ 2 inches (44 cm). [1] The telescope's secondary mirror was mounted on a flat optical window at

4. Wide-field Infrared Survey Explorer - Wikipedia

   en.wikipedia.org/wiki/Wide-field_Infrared_Survey...

   WISE achieved at least 68, 98, 860, and 5400 μJy; 5 sigma sensitivity at 3.4, 4.6, 12, and 22 μm for the WISE All-Sky data release. [27] This is a factor of 1,000 times better sensitivity than the survey completed in 1983 by the IRAS satellite in the 12 and 23 μm bands, and a factor of 500,000 times better than the 1990s survey by the Cosmic ...

5. Astrophotography - Wikipedia

   en.wikipedia.org/wiki/Astrophotography

   The telescope used by Berkowski was attached to 6 + 1 ⁄ 2-inch (17 cm) Königsberg heliometer and had an aperture of only 2.4 in (6.1 cm), and a focal length of 32 in (81 cm). Commencing immediately after the beginning of totality, Berkowski exposed a daguerreotype plate for 84 seconds in the focus of the telescope, and on developing an image ...

6. List of largest optical telescopes in the 19th century

   en.wikipedia.org/wiki/List_of_largest_optical...

   Early reflectors using speculum metal had some of the record-breaking apertures of the day, but not necessarily high performance. Starting in the 1860s metal coated glass ('Silver on glass') reflector telescopes proved more durable, for example the Crossley Reflector, which continued to be used and upgraded even into the 21st century.

7. I tried out Meta's Orion AR glasses. I'd buy them in a ... - AOL

   www.aol.com/tried-metas-orion-computer-glasses...

   Meta's AR glasses, called Orion, are impressive. But they aren't yet for sale. ... I'd buy them in a heartbeat — if they were actually for sale. Peter Kafka. Updated September 25, 2024 at 3:14 PM.