The first table contains the technical data of the instruments.
|Instrument index||Emission line / Bandwidth / Filter||Field of view||Aperture||Resolution||Comment|
|1||H-alpha, 3.5nm||7.6°×5.8°||5 cm||9" (FWHM)||Panasonic MN34230 sensor, f=135mm lens|
|2||Bayer CFA + Light pollution filter||15.5°×10.3°||7 cm||17" (FWHM)||Consumer grade digital photo camera, f=135mm lens|
|3||H-alpha, 3.5nm||7.6°×5.8°||6 cm||9" (FWHM)||Panasonic MN34230 sensor, f=135mm lens|
|4||H-alpha, 35nm||7.6°×5.8°||5 cm||9" (FWHM)||Panasonic MN34230 sensor, f=135mm lens, Used for exact continuum measurement (pass band centered to emission line) in combination with narrow band filters.|
|5a||410nm to 550nm (SDSS G')||6.8°×4.5°||10 cm||9" (FWHM)||Sony IMX455 sensor, f=300mm lens|
|5b||555nm to 650nm (SDSS R' + 400 to 650nm IR-cut)||6.8°×4.5°||10 cm||9" (FWHM)||Sony IMX 455 sensor, f=300mm lens|
|5c||695nm to 845nm (SDSS I')||6.8°×4.5°||10 cm||9" (FWHM)||Sony IMX 455 sensor, f=300mm lens|
The second table shows how much of the instruments form the first table where / are active in which period
|Nov 2018 to Apr 2020||4||2|
|Apr 2020 to Jul 2020||1||2||3|
|Jul 2020 to Jan 2022||2||3||1|
|Since Jan 2022||2||3||1||1||1||1|
Currently the whole northern sky downto DEC=-16° is photographed in H-alpha light and in continuum light. Its planned to extend this to other emission lines.
Some early results showing selected regions can be found in the wide field nebulae section.
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