Search found 451 matches
- Sun Mar 17, 2024 11:47 am
- Forum: General Topics, Annoucements, Forum Life
- Topic: Atelier en ligne STAROS : découvrez des outils innovants pour la spectroscopie
- Replies: 7
- Views: 664
Re: Atelier en ligne STAROS : découvrez des outils innovants pour la spectroscopie
Très joli point de vue Christian ! En faisant la promotion de la spectroscopie ou de toute autre technique technique/scientifique, il existe un risque de mauvaise interprétation des objectifs. Hobby vs rigueur académique ou amateur vs techniques professionnelles en termes d'objectifs ; des passe-tem...
- Mon Feb 19, 2024 5:37 am
- Forum: Spectroscopes and Softwares
- Topic: Using the ALPY200
- Replies: 6
- Views: 616
Re: Using the ALPY200
To: Robin,
Thanks for the helpful hints at successfully using the Alpy in 200 mode. Hope to configure mine after the winter clouds go away and do some test with my Alpy600 on the CDK at F/4.5.
James
Thanks for the helpful hints at successfully using the Alpy in 200 mode. Hope to configure mine after the winter clouds go away and do some test with my Alpy600 on the CDK at F/4.5.
James
- Mon Feb 19, 2024 2:11 am
- Forum: General Topics, Annoucements, Forum Life
- Topic: New Alpy 200 spectrograph
- Replies: 4
- Views: 18499
Re: New Alpy 200 spectrograph
Thanks for the "heads-up" Olivier and the great presentation from Robin.....ordered mine at the end of the Zoom meeting, and received the Alpy200 module 4 days latter! Can't wait to see how "dim" I can go with my CDK17 at F/4.5 with this!
- Thu Jan 18, 2024 12:24 am
- Forum: Spectra, results, information on activity ...
- Topic: NEW NOU_T ECHELLE RESULTS
- Replies: 146
- Views: 127460
Re: NEW NOU_T ECHELLE RESULTS
To: Joan,
Nice work.....still need to get my eShel2 working before T CrB blows-up again this year!
James
Nice work.....still need to get my eShel2 working before T CrB blows-up again this year!
James
- Thu Jan 04, 2024 2:16 am
- Forum: General Topics, Annoucements, Forum Life
- Topic: Great to be back!
- Replies: 1
- Views: 2125
Re: Great to be back!
I concurr! Now to make the eShel2 work!
James
James
- Fri Mar 31, 2023 1:00 am
- Forum: Spectra, results, information on activity ...
- Topic: New eshel setup in Chile
- Replies: 15
- Views: 10381
Re: New eshel setup in Chile
Nice work! Inspires me to get my eShel2 up and running when all my bad weather
(snow/cold) is over with this spring.
James
(snow/cold) is over with this spring.
James
- Fri Mar 31, 2023 12:58 am
- Forum: General Topics, Annoucements, Forum Life
- Topic: BAV Magazine SPECTROSCOPY
- Replies: 4
- Views: 8169
Re: BAV Magazine SPECTROSCOPY
To: All
Rho Cas looks like a nice target for eShel2 work at 4.2-6mag.
James
Rho Cas looks like a nice target for eShel2 work at 4.2-6mag.
James
- Wed Jul 27, 2022 7:50 am
- Forum: Spectroscopes and Softwares
- Topic: A modification for improve eShel spectrograph
- Replies: 113
- Views: 112557
Re: A modification for improve eShel spectrograph
To: Joan, Sorry for the late reply. I was in the middle of selling and buying a house this May-June and now I'm more settled down. I don't have a quick answer, but I will take the eShel commissioning-up as soon as I construct my new location's roll-of-roof for my CDK17. My Sky is much darker (I'm 15...
- Sat Apr 02, 2022 10:18 pm
- Forum: Spectroscopes and Softwares
- Topic: First starlight for my new echelle
- Replies: 82
- Views: 106640
Re: First starlight for my new echelle
To: Joan, Thanks for the careful explanation. RE"....you can note that one135mm. needs 2.52 times exposure than a 85mm. one to reach the same theoretical results...." Maybe this is why I show less light on orders below 55 than your custom made spectrograph. Yet in Christian's report, he wa...
- Sat Apr 02, 2022 7:30 pm
- Forum: Spectroscopes and Softwares
- Topic: First starlight for my new echelle
- Replies: 82
- Views: 106640
Re: First starlight for my new echelle
Nice work Joan! Is there any reason you chose not to use the faster Canon 135 F/2 lens? Not that Nikon is bad, but I think Christian fully vetted the Cannon for good UV penetration with the ehel. Also, are you using a optical fiber in your latest data? I like the transmission you get with "dire...