SPOL Gratings
Grating
(g/mm)
Blaze Angle
(degrees)
Blaze Wavelength
(Angstroms)
Micrometer setting
at blaze
Dispersion
(A/pix)
Spectral Coverage
(Angstroms)
Slit Demag.
at blaze
600 red
11.35
5819
6.87
4.14
4970
.81
672
16.2
7365
7.41
3.77
4529
.74
964
14.6
4639
7.23
2.62
3140
.76
1200
21.1
5322
7.95
2.14
2570
.67
1700
26.75
4697
8.58
1.52
1825
.58
mirror
---
---
5.61
---
---
1.00
Resolution (A) ~ Slit width (arcsec) x scale (pix/arcsec) x dispersion (A/pix) x slit demag.
90" scale ~ 1.9 pix/arcsec; MMT scale ~ 5.2 pix/arcsec