|
I am a complete new-comer to this business, so appreciate everyone's expertise. Thanks.
Regarding the problem of reflections off walls, initially I used a reflection off a window to reduce the intensity. Yesterday I used a (new, glass) petri dish as a small reflector held in front of the slit of a DVD spectroscope (the design mounted inside a cardboard tube). The response was promising: easier than standing in the glare of a reflected solar image in a window. My goal is to mount the petri dish at 45 degrees to the slit, so that whatever the orientation of the Sun in the sky I am looking perpendicular to the line of sight. I have also started mounting the device on a tripod with slow motion controls for easier use.
It has also been suggested to me that many of the absorption lines are due to substances in Earth's atmosphere, and that these would need to be identified to distinguish them from those in the solar atmosphere.
Comments?
Geoff Mc
|