Coronado ST 40/400 PST Personal Solar Telescope OTA


The PST is the latest innovation from Coronado. This “little” telescope is another step toward our goal of making it possible for everyone to, “Experience the Sun our way.”

In stock

SKU: 10316 Categories: ,


Sub angstrom H-alpha systems have long been cost prohibitive for the amateur. Designs other than the Coronado are difficult to use because of temperature and F-Ratio requirements. Not only does the PST have a bandpass of <1.0 Angstrom but it is also thermally stable and requires no more time to operate than putting in a eyepiece and adjusting the focus?

The PST represents the same technology and quality that goes into a SolarMax series telescope but with a few unique design characteristics that allow us to offer it for less than some premium eyepieces. The PST will show you prominence’s, active regions, filaments, as well as other surface details.

At <1.0 Angstrom it will not reveal as much surface detail as the SolarMax series telescopes and filters but it certainly doesn’t? disappoint.

  • Aperture: 40mm
  • Focal Length: 400mm
  • F/Ratio: F/10
  • Bandwidth: <0.5 Anstrom
  • Thermal Stability: 0.005 Angstrom / K
  • Safety Blocking: >10^-5 from EUV/IR

Optical features:

bandwidth: < 1 Angstrom
temperature drift: 0.005 A/K
energy protection: > 10^-5 from UV to IR


Type Refractor
Type of build Solar H-Alpha
Aperture (mm) 40
Focal length (mm) 400
Aperture ratio (f/) 10
Resolving capacity 2,88
Light gathering capacity 30
Max. useful magnification 80
Tube weight (kg) 1,6
Bandwidth < 1,0
Double Stack no
Tube construction Full tube
Type of build Coronado PST
Connection ( to eyepiece) 1,25″
Mounting type no mount
GoTo control no
Type of build OTA
Included accessories
1.25” eyepieces 18mm
Finder scope Solar finder
Total weight (kg) 2
Series PST
Special recommendation yes
Area of application
Moon & Planets no
Nebulae & galaxies no
Nature Observation no
Astrophotography yes
Sun yes
Recommended for
Beginners yes
Advanced yes
Observatories no


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