Spectroscopy thread

[Guest]

Since I like spectroscopy, and have a few good images, im starting a thread for it.

[LordFerret]

A while back, messing around with Celestia, an idea I used for creating rings for planets... be it fictitious systems or for newly found planets where the body 'might' have a ring system... was taking the spectrum of the parent star and using it to create the ring banding pattern.

Celestia reference on the subject.

[Dafni]

Nice pics. How did you get them exactly.

I have been working in and around spectroscopy for 2 decades now. Fundamental research, inorganic chemistry.

[NSEP]

Never heard of this before, (i can't see the pics im in school)

[YNM]

@dundun92 What are these off ? Fluorescent lights ?

[Guest]

11 hours ago, Dafni said:

Nice pics. How did you get them exactly.

I have been working in and around spectroscopy for 2 decades now. Fundamental research, inorganic chemistry.

I made public labs cell phone spectrometer, taped it to a phone, aimed at a light source, and snapped away!

3 hours ago, YNM said:

@dundun92 What are these off ? Fluorescent lights ?

 The first three are CFL (compact fluorescent) Next is mercury vapor streetlight, then sodium vapor.

[YNM]

8 minutes ago, dundun92 said:

The first three are CFL (compact fluorescent) Next is mercury vapor streetlight, then sodium vapor.

Many of the sodium lines gives it away I guess.

But yeah, because LED and incandescent are unatractive XD

Also, those are a bit "false" because of RGB camera. Actual spectrograph use pure black-white CCDs. You can sort of "see" it on the sodium lamps, it's not as strong as it's often described (unless it's a "white" one).

Edited November 28, 2017 by YNM

[Guest]

3 minutes ago, YNM said:

Many of the sodium lines gives it away I guess.

But yeah, because LED and incandescent are unatractive XD

Also, those are a bit "false" because of RGB camera. Actual spectrograph use pure black-white CCDs.

LEDs and Incandescents are booring! I know, but color looks so much better!

[Guest]

Here are my spectroscopes:

The first two are from is from public lab. The third is one from here: http://astro.u-strasbg.fr/~koppen/spectro/mk2be.html

[LordFerret]

7 hours ago, dundun92 said:

The third is one from here: http://astro.u-strasbg.fr/~koppen/spectro/mk2be.html

What a great resource! I've spent many hours using Simbad and Vizier.

[Guest]

I just observed the tricky solar sodium doublet.