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spectro-l · Astronomical Amateur Spectroscopy / Spectroscopie Amateur en Astronomie

Group Information

  • Members: 409
  • Category: Amateur
  • Founded: May 14, 2003
  • Language: French
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Description

[english] This group concerns amateur spectroscopy. Post can be in French or in English.

[français] Ce groupe concerne la spectroscopie / spectrographie amateur. Les messages peuvent être envoyés en français ou en anglais.

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Re:
Daniel, There has not been a lot of study on Moreton waves the past 30 years. Recently some professional astronomers are observing some waves but they have
Posted - Wed Dec 16, 2009 11:41 pm
fredrick veio
fredveio
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Re: [1 Attachment]
Daniel, Your recent H alpha sun image and the other image out of the line, both are interesting in making a comparison of how your instrument performs. In
Posted - Wed Dec 16, 2009 11:35 pm
fredrick veio
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Re: Pourquoi pas un 1800 gr/mm ?
Thierry, I visited your web site, wow, very good. And the amateur who made a spectroscope out of balsa wood, fantastique. Amities, Fred veio To:
Posted - Wed Dec 16, 2009 11:07 pm
fredrick veio
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Re: Pourquoi pas un 1800 gr/mm ?
Thanks Bernard, I've the same feelings for the 1800 gr/mm but if i use a wider slit, 35µm instead of 24µm i'll get more signal (20%) and resolution goes to
Posted - Tue Dec 15, 2009 4:20 pm
thierry garrel
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Re: Pourquoi pas un 1800 gr/mm ?
I use the 1800 l/mm (special purchase from Shelyak) as my default Lhires III 'high res' grating, as it is a good compromise between the 2400 and 1200 gratings
Posted - Tue Dec 15, 2009 1:05 pm
bd_heathcote
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Message History

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2009 88 60 64 137 118 76 36 146 102 140 152 90
2008 131 86 38 182 147 221 75 136 177 94 168 96
2007 107 162 161 67 156 128 185 55 221 173 142 81
2006 41 80 89 60 272 263 98 99 148 133 71 112
2005 11 18 26 23 14 25 62 42 39 27 11 50
2004 12 27 14 12 9 6 28 65 32 57 14 26
2003 100 63 27 32 48 53 34 33
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