Affiliation
American Association of Variable Star Observers (AAVSO)
Tue, 03/25/2014 - 20:24
Does anyone know what the emission and absorption lines could be on this spectrum?
http://users.cloudnet.com/jfb/towerlamp.html
It is from a red tower lamp about 5 miles from me that I use to focus instruments when it's cloudy.
I believe it is a blinking or rotating incandescent bulb.
Thank you for information.
John
I now think they are telluric in origin.
John
What is the approximate wavelength range and which side of the image is reddest?
Cheers,
Doug
Hi Doug,
This is an approximation, as before the light turns red, it's white and takes up the entire field.
http://users.cloudnet.com/jfb/towerlamp.html
Thanks,
John
The link doesn't work for me sorry. Not sure why.
Terry
Hi Terry,
If you can't use the link I'll try to explain as well as I can.
The wavelength is from about 5000 to 7000 Ang. It get's
redder as you go to the right with emission lines at about 5800, 6200 and 6500 Angstroms.
There is a prominent absorption at about 6850 Ang.
John