1. A reflecting telescope with the mirror slightly tilted to throw the image to the side where it can be viewed
   - off-axis reflector

Type of: reflecting telescope, reflector

• genus Bartle-Frere
• genus Bartramia
• genus Basiliscus
• genus Bassariscus
• genus Bassia
• genus Bathyergus
• genus Batis
• genus Batrachoseps
• genus Bauhinia
• genus Beaumontia
• genus Begonia
• genus Belamcanda
• genus Bellis
• genus Bemisia
• genus Bennettitis
• genus Benzoin
• genus Berberis
• genus Bergenia
• genus Beroe
• genus Berteroa
• genus Bertholletia
• genus Bessera
• genus Besseya
• genus Beta
• genus Bettongia