Un trio di telescopi di tipo al crepuscolo: Il Celestron NexStar 6SE Schmidt-Cassegrain, il Sky-Watcher 8 pollici Flextube Dobsonian, e la SharpStar 76mm

• Collaboratore: Alan Dyer / VWPics / Alamy Foto Stock
• ID dell’immagine: 2GYKRJ2
• Dimensioni dei file: 55,6 MB (1,3 MB Download compresso)
• Liberatorie: Modello - no | Proprietà - no
• Dimensioni: 5400 x 3600 px | 45,7 x 30,5 cm | 18 x 12 inches | 300dpi
• Data acquisizione: 27 agosto 2020

Altre informazioni

A trio of telescope types in twilight: The Celestron NexStar 6SE Schmidt-Cassegrain, the Sky-Watcher 8-inch Flextube Dobsonian, and the SharpStar 76mm EDPH on the Sky-Watcher HEQ5 mount, as examples of the three main optical systems: catadioptric, reflector and refractor; and three main mounting systems: fork, Dobsonian and German equatorial. Also showing telescopes for visual use (on the left) and the refractor for photographic use, with camera. Also showing computerized GoTo with the Celestron and HEQ5 mount vs basic manual with the Dobsonian. Taken for book illustrations, August 27, 2020 from home at twilight.

Parole chiave associate all'immagine

• amatoriale
• apochromatic
• astrografo
• astronomy
• attrezzature
• backyard
• catadiottrico
• celestron
• dobson
• examples
• fill flash
• galassia
• goto
• mounts
• newtoniano
• osservatore
• osservazione delle stelle
• ottiche
• riflettore
• rifrattore
• schmidt-cassegrain
• sky-watcher
• stella tagliente
• telescopi
• terzetto
• visivo vs fotografico