Search found 13 matches

by phuphuphnik
Mon May 01, 2017 3:45 pm
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: April Geomagnetic Summary
Replies: 5
Views: 1507

Re: April Geomagnetic Summary

What do you think the prospects for aurorae are this month? Also, being new tho this how does the sun's rotation affect getting hit? I see 3 factors, sun's rotation, Earth's axial tilt, and Earth's orbit. Axial tilt because of the orientation of the magnetic field.
cheers,
chriso
by phuphuphnik
Sat Apr 29, 2017 3:23 pm
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: little more help, please. More Lockyer questions
Replies: 19
Views: 2264

Re: little more help, please. More Lockyer questions

I may attach a camera on it at some point, I have another non period telescope with the same objective on it that I'll use for a more modern setup. The oscillating slits will ab a tad difficult with this one. I'd need a roof prism to send the light back, or figure out a reliable system of linking th...
by phuphuphnik
Sat Apr 22, 2017 7:18 am
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: little more help, please. More Lockyer questions
Replies: 19
Views: 2264

Re: little more help, please. More Lockyer questions

Thankyou! This is the document I have been looking for! (Oh, my 108 degree should be 180 in my last post.) What I need now is a day of sun when I'm not working. I would love a double pass unit, but the 25mm prisms I'm using are a tad small. Once I get more precise with my machining I'll add that fea...
by phuphuphnik
Fri Apr 21, 2017 9:05 am
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: little more help, please. More Lockyer questions
Replies: 19
Views: 2264

Re: little more help, please. More Lockyer questions

John, I believe you are thinking of what happens when you stack equilateral prisms rotated 108 degrees. kinda like this: /\/\/\ Mine are set at the dispersion angle
by phuphuphnik
Thu Apr 20, 2017 11:08 am
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: little more help, please. More Lockyer questions
Replies: 19
Views: 2264

Re: little more help, please. More Lockyer questions

Thanks! The lower picture is an old one example made in the 1890s, that I used as reference. The one mounted on the telescope is mine. It is pretty heavy, the brass tube is 7 pounds, objective lens 1/2, eyepiece is pretty solid so a pound. The prism plate is another 2+ when it is all said and done, ...
by phuphuphnik
Thu Apr 20, 2017 8:41 am
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: little more help, please. More Lockyer questions
Replies: 19
Views: 2264

Re: little more help, please. More Lockyer questions

The collimating lens is off in the picture. Is it a full 2 lens telescope, or a single lens? I was under the impression that it was a single lens (or a doublet, but I'm sure you get my meaning) The focal ratio is what I was missing. the telescope is an 80mm f/11.5 (900mm fl) I'll poke through my len...
by phuphuphnik
Thu Apr 20, 2017 5:40 am
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: little more help, please. More Lockyer questions
Replies: 19
Views: 2264

Re: little more help, please. More Lockyer questions

I believe they are aligned, I used a UV, and a red laser to find the minimum deviation. Here are the pictures, they were on another device... It projects nicely, but I want a 'wider' swath http://i.imgur.com/4ZCh7q8.jpg The collimating lens is off in this picture http://i.imgur.com/AMyY6fb.jpg The o...
by phuphuphnik
Wed Apr 19, 2017 8:33 am
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: little more help, please. More Lockyer questions
Replies: 19
Views: 2264

little more help, please. More Lockyer questions

I am missing something. While I can get wonderful images projected onto something with the Lockyer, that is about it. So far this is what I have: the focused disc of the sun is on the slit, a lens is then focused onto the other side of the slit and the light passes through the prisms, then a second ...
by phuphuphnik
Thu Mar 09, 2017 5:09 am
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: little help, please
Replies: 3
Views: 1088

work continues

Have the final form just about there. Need to work on focus and putting a brass box around it to shade the light. That is a Mercury lamp at the end there. I can see the lines, but they are not sharp because it is so lose, I think. I am also putting together a wire diffraction grating to make a littl...
by phuphuphnik
Sat Feb 04, 2017 1:49 am
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: January Geomagnetic Summary
Replies: 4
Views: 1334

Re: January Geomagnetic Summary

I find it absolutely wonderful that This data is coming out of G.B. In my reading I have come across so much information from Kew and other observatories there. (like Sept 1 1859 the first time a photo of a solar flare and the magnetometer data were lined up )
by phuphuphnik
Thu Feb 02, 2017 5:56 am
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: little help, please
Replies: 3
Views: 1088

little help, please

I'm working the kinks out of a Lockyer style spectrometer, and I am having a few issues. Where should the second telescope focus, the slit? To better explain, as y'all know it goes objective, slit, lens, prism chain, then the second telescope. I'm getting lovely projection of the lines on a bit of c...
by phuphuphnik
Thu Dec 29, 2016 12:27 am
Forum: This is SolarChat !!
Topic: Sunrise and the Flash
Replies: 12
Views: 1274

Re: Sunrise and the Flash

WONDERFUL! Only seen it once, had no idea what it was until much later.
by phuphuphnik
Wed Dec 28, 2016 5:10 am
Forum: Great American Solar Eclipse August 21 2017
Topic: photographing the eclipse like its 1860
Replies: 4
Views: 1469

photographing the eclipse like its 1860

Howdy, My name is Chris Olsen, I'm a wet plate photographer (and particle accelerator operator). I am finishing up a replica of the Kew photoheliograph that I plan on lugging downstate and taking pictures the old fashioned way. Here are a couple images of the prototype at a reenactment, and the almo...