First starlight for my new echelle
Posted: Fri Jun 16, 2017 3:08 am
I have just acquired my first "real" spectrum with my new home built echelle spectrograph.
The conditions were not good. Clouds interfered with all the integrations but I am very pleased regardless.
The instrument is not fiber coupled but is rigidly built and I will be making a tightly fitted foam enclosure so that I can control its temperature.
So far indications are that flexure will not be a problem (but it is early days). Here is a picture of it mounted on the telescope.
I can cover the spectral range from 4050 to 7750 in one shot and may be able to squeak out even more (the camera lens is the limitation).
Here is a graph of resolution versus wavelength.
And here are my first real results for CH Cyg.
Tim
The conditions were not good. Clouds interfered with all the integrations but I am very pleased regardless.
The instrument is not fiber coupled but is rigidly built and I will be making a tightly fitted foam enclosure so that I can control its temperature.
So far indications are that flexure will not be a problem (but it is early days). Here is a picture of it mounted on the telescope.
I can cover the spectral range from 4050 to 7750 in one shot and may be able to squeak out even more (the camera lens is the limitation).
Here is a graph of resolution versus wavelength.
And here are my first real results for CH Cyg.
Tim