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Tower lamp spectrum

Jupe's picture
Jupe
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Joined: 2012-02-02

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

Tower Lamp Spectrum
Jupe's picture
Jupe
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Joined: 2012-02-02

I now think they are telluric in origin.

John

What is the approximate
wel's picture
wel
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Joined: 2010-07-26

What is the approximate wavelength range and which side of the image is reddest?

Cheers,
Doug

Approximate wavelength
Jupe's picture
Jupe
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Joined: 2012-02-02

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

ID spectra
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TCB168
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Joined: 2010-07-26

The link doesn't work for me sorry. Not sure why.

Terry

Tower Spectrum
Jupe's picture
Jupe
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Joined: 2012-02-02

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

AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484