Hello at all,
I hope that the weather will change soon, because here until today, this year is not very good for astronomical observations.
In this lockdown time I have improved the Relco and Tungsten lights, changing the old capacitor lens for an 30mm. eyepiece plössl, the result has been excellent.
Another improvement in the NOU_T has been the tilting of 1,5º the ATIK460EX as C.Buil explains here,
http://www.astrosurf.com/buil/us/spa/test.htm.
I am very glad with this spectrograph, due at the weather I only have tested currently with HD103287.
You be able to see here the orders detected and their R. Of course, you may improve the Resolution in the Orders 25 to 29, with focusing them but that is detriment of the others ones.
By the way, a R = 8000 in the Order 56 it is good, or not ?
Resolution :
Order #25 : FWHM = 5.91 - Dispersion = .271 A/pixel - R = 5529.8
Order #26 : FWHM = 6.85 - Dispersion = .247 A/pixel - R = 5040.7
Order #27 : FWHM = 6.31 - Dispersion = .242 A/pixel - R = 5372.3
Order #28 : FWHM = 6.37 - Dispersion = .221 A/pixel - R = 5601.7
Order #29 : FWHM = 5.74 - Dispersion = .227 A/pixel - R = 5841.7
Order #30 : FWHM = 4.06 - Dispersion = .219 A/pixel - R = 8299.1
Order #31 : FWHM = 3.63 - Dispersion = .209 A/pixel - R = 9409.0
Order #32 : FWHM = 3.43 - Dispersion = .196 A/pixel - R = 10273.8
Order #33 : FWHM = 3.42 - Dispersion = .202 A/pixel - R = 9734.4
Order #34 : FWHM = 3.59 - Dispersion = .193 A/pixel - R = 9378.5
Order #35 : FWHM = 3.32 - Dispersion = .188 A/pixel - R = 10108.2
Order #36 : FWHM = 3.43 - Dispersion = .184 A/pixel - R = 9734.5
Order #37 : FWHM = 3.51 - Dispersion = .179 A/pixel - R = 9548.5
Order #38 : FWHM = 3.89 - Dispersion = .171 A/pixel - R = 8771.1
Order #39 : FWHM = 3.69 - Dispersion = .171 A/pixel - R = 9007.9
Order #40 : FWHM = 3.56 - Dispersion = .166 A/pixel - R = 9343.5
Order #41 : FWHM = 3.78 - Dispersion = .157 A/pixel - R = 9111.5
Order #42 : FWHM = 3.80 - Dispersion = .157 A/pixel - R = 8817.6
Order #43 : FWHM = 3.75 - Dispersion = .155 A/pixel - R = 8842.5
Order #44 : FWHM = 3.60 - Dispersion = .152 A/pixel - R = 9217.0
Order #45 : FWHM = 3.89 - Dispersion = .148 A/pixel - R = 8542.6
Order #46 : FWHM = 3.83 - Dispersion = .143 A/pixel - R = 8758.4
Order #47 : FWHM = 3.39 - Dispersion = .139 A/pixel - R = 9964.4
Order #48 : FWHM = 3.48 - Dispersion = .140 A/pixel - R = 9444.8
Order #49 : FWHM = 3.32 - Dispersion = .137 A/pixel - R = 9954.6
Order #50 : FWHM = 3.29 - Dispersion = .134 A/pixel - R = 10054.9
Order #51 : FWHM = 3.23 - Dispersion = .133 A/pixel - R = 10138.4
Order #52 : FWHM = 3.10 - Dispersion = .127 A/pixel - R = 10782.3
Order #53 : FWHM = 3.30 - Dispersion = .124 A/pixel - R = 10196.6
Order #54 : FWHM = 3.58 - Dispersion = .123 A/pixel - R = 9288.0
Order #55 : FWHM = 3.68 - Dispersion = .121 A/pixel - R = 9060.9
Order #56 : FWHM = 4.31 - Dispersion = .116 A/pixel - R = 7923.6
Greetings, J. Guarro.