Tabulation of the Standard Astronomical Filters

In summary, the purpose of tabulating the standard astronomical filters is to provide a standardized set of filters for astronomers to measure the brightness and color of celestial objects. These filters are chosen based on their ability to accurately measure specific wavelengths of light and are commonly used in combination. They are calibrated using known sources of light and are primarily used for photometric observations, but may not be suitable for all types of astronomical observations.
  • #1
natski
267
2
Hi all,

Does anyone know where I can find a tabulation of the standard Sloan/Johnson/etc astronomical filters? Any help would be greatly appreciated! :-)

Natski
 
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  • #2
The SDSS filter curves can be found here:

http://www.sdss.org/dr3/instruments/imager/index.html#filters

Although, each new set of filters is going to be a bit different, and the transmission curves will vary from set to set.

Also some here:

http://www.soartelescope.org/observing/soi-filters [Broken]
 
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1. What is the purpose of tabulating the standard astronomical filters?

The purpose of tabulating the standard astronomical filters is to provide a standardized set of filters that can be used by astronomers to accurately measure the brightness and color of celestial objects. This allows for more consistent and reliable data to be collected and analyzed.

2. How are the standard astronomical filters chosen?

The standard astronomical filters are chosen based on their ability to accurately measure specific wavelengths of light from celestial objects. These wavelengths are chosen based on the objects of interest and the scientific goals of the research being conducted.

3. What are the most commonly used standard astronomical filters?

The most commonly used standard astronomical filters are the U, B, V, R, and I filters, which correspond to ultraviolet, blue, visual, red, and infrared wavelengths, respectively. These filters cover a wide range of the electromagnetic spectrum and are often used in combination to gather complete data on celestial objects.

4. How are the standard astronomical filters calibrated?

The standard astronomical filters are calibrated by measuring the response of the filters to known sources of light, such as standard stars or artificial sources. The response curve of the filter is then compared to a reference curve, and adjustments are made to ensure accuracy.

5. Can the standard astronomical filters be used for all types of astronomical observations?

No, the standard astronomical filters are not suitable for all types of observations. They are primarily used for photometric observations, which measure the brightness of objects. Other types of observations, such as spectroscopy, require different types of filters or instruments.

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