Narrow Band Filters

( < 10nm)

NAME  CENTER(nm)  FWHM(nm) TMAX(%) DIMENSIONS(mm)   TRACES       DATA

H-alpha 655.2      9.09    67.56   50x50x5         (1)  (2)    trace data

Hodge on/off H-alpha

(Not on-site at APO, but can be obtained on loan--contact Paul Hodge at UWash, hodge/astro.washington.edu)

 

UW-WSU Nebular Emission-Line Filters

(Not on-site at APO, but can be obtained on loan--contact Jeff Morgan at UWash, morgan/astro.washington.edu)

 

York narrow-band interference filter set

What to do with the trace data.

(1) higher resolution trace centered on peak transmission

(2) lower resolution trace from 300 nm to 1200 nm

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