مشخصات تلسکوپ استرو-تک ریچی کرتین ۱۶ اینچ
This newest Version A of the #Astro-Tech #AT16RCT #Ritchey_Chrétien #astrograph
(named a Sky & Telescope Hot Product for 2015) has:
16” f/8 true #Ritchey-Chrétien #hyperbolic mirror optical design
carbon fiber Serrurier truss tube design with CNC-machined stainless steel and aluminum components
18-point primary mirror floatation system
low thermal expansion quartz primary and secondary mirrors
99% reflectivity non-tarnishing multi-layer dielectric mirror coatings
three built-in cooling fans in rear cell
3" dual-speed compression ring Crayford focuser with 2" and 1.25" adapters
focuser attachment collar isolated from the primary mirror and baffle tube
dust covers and finder shoe
This newest Version A of the #Astro-Tech #AT16RCT #Ritchey_Chrétien #astrograph
(named a Sky & Telescope Hot Product for 2015) has:
16” f/8 true #Ritchey-Chrétien #hyperbolic mirror optical design
carbon fiber Serrurier truss tube design with CNC-machined stainless steel and aluminum components
18-point primary mirror floatation system
low thermal expansion quartz primary and secondary mirrors
99% reflectivity non-tarnishing multi-layer dielectric mirror coatings
three built-in cooling fans in rear cell
3" dual-speed compression ring Crayford focuser with 2" and 1.25" adapters
focuser attachment collar isolated from the primary mirror and baffle tube
dust covers and finder shoe
Astro-Tech 16" f/8 #truss tube Ritchey-Chrétien
Visual Limiting Magnitude: 15.5
Focal Length: 3250mm
Focal Ratio: f/8
Resolution: 0.29 arc seconds
Aperture: 16"
Back Focus: 11.33" (288mm)
Weight: 77 lbs. (35kg)
Telescope Type: Ritchey-Chrétien
Visual Limiting Magnitude: 15.5
Focal Length: 3250mm
Focal Ratio: f/8
Resolution: 0.29 arc seconds
Aperture: 16"
Back Focus: 11.33" (288mm)
Weight: 77 lbs. (35kg)
Telescope Type: Ritchey-Chrétien
آرشیو مجله های تلسکوپ که توسط موسسه آسمان شب بطور رایگان منتشر شده.
Telescope Magazines published by Night Sky institute for free.
Telescope Magazines published by Night Sky institute for free.