DayStar Filters - Sub-Angstrom Bandpass Filters
DayStar Filters are the industry standard in narrow bandpass
astronomical solar filters. For decades, professional
observatories and universities worldwide have counted on the
superior quality and performance of DayStar filters. They can
be found in the world's major educational institutions and
research facilities, both terrestrial and flown. DayStar's
unique technology achieves narrower bandpasses for a more
detailed image.
DayStar Filters
The SolaREDi is a multi-functional, ready to use dedicated hydrogen
alpha solar telescope combining performance, refinement and
sophistication that will dazzle the user, whether professional or
amateur enthusiast.
The DayStar Quantum Series incorporates ALL of the desired features for today's solar observer or
researcher... and then some. Operation couldn't be simpler, just plug it in and a green light
indicates when the filter is on band.
DayStar T-Scanner Sub-angstrom Hydrogen Alpha filters are rear-mounted filter assemblies designed to
operate at the eyepiece position of the telescope. This allows greater adaptability to different
telescope configurations and for larger telescope apertures.
Calcium offers TWO strong absorption lines at 393.3nm and at 396.9nm, known as the Calcium K and H
lines. The H line for visual observations, is much closer to the visual spectrum and easier to see in
high contrast violet color.
The Helium D3 line Filter is a new product made only by DayStar. He D3 filters reveal a different
view of prominences, plages, very fine granulation and sunspot penumbral detail. He D3 line studies
reveal flare footprint emissions.
DayStar is proud to offer Sodium Na- D line (5895.9Å ) filtering systems. Sodium lines are very
narrow, but very bright. A very narrow filter of < 0.5Å is necessary to properly isolate the
line from the continuum.
Energy Rejection Filters reduce the heat load on your filter assembly by absorbing or reflecting UV
and/or Infr-red light while transmitting light in the desired visual spectrum.
Designed to mount on the REAR of your existing telescope, the DayStar design is adaptable to a wide variety of astronomical telescope systems. DayStar's unique technology achieves narrower bandpasses for a more detailed image. Combined, these design differences accomplish the highest quality view in contrast and resolution possible, limited only by seeing or diffraction. DayStar ultra-narrow bandpass filters are available in the following wavelengths:
- Hydrogen Alpha
- Calcium H and K Line
- Sodium D Line
- Helium D3 Line
- custom wavelengths available upon request
