DayStar Filters - Quantum Sodium D 0.4Å PE Solar Filter

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Availability: This item typically has a delivery time of 8-12 weeks. Place your order today to reserve.

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The DayStar Sodium Na-D Filter system is designed for both visual users and photographers for sub-angstrom observations.

SKU: DAY-NAD.4UNI
Manufactured by:
DayStar Filters
 

Product Description

The DayStar Sodium Na-D Filter system is designed for both visual users and photographers for sub-angstrom observations. Since sodium lies are narrow but also bright, DayStar has designed this filter to <0.5Å to isolate the line from continuum. The resulting image depicts high detail in granulation, supergranulation and P-modes. The Na-D line has low excitation when the low chromosophere is heated. Visual and photographic images reveal type image as Calcium, revealing granulation, but are much brighter and more easily visible. The filter system can be heated further making doppler studies easier by increasing transmission on the higher of the two Na-D lines. These filters have until now been primarily used for research purposes only, performing doppler and supergranulation studies. Narrow bandpass Na D line filters have also been used in deep-sky observations of IO, but with significantly larger apertures.

 

 

 

 

 

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Specifications

Name DayStar Filters - Quantum Sodium D 0.4Å PE Solar Filter
Manufacturer DayStar Filters
UPC 702730990490
Model DAY-NAD.4UNI
Custom Stock Status This item typically has a delivery time of 8-12 weeks. Place your order today to reserve.
Bandwidth 0.4Å
Housing Quantum (Microprocessor controlled, works at all outside temps, requires power)
Wavelength Sodium D (5890.0 or 5895.9Å)

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