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Another spectrum made in 2 parts, and in 2 consecutive days (I could not make it in one night, mist and clouds)
Regards,

Jacques

Hi Simon,

Happy to see the Lisa works well.
I agree that achieving a reasonnably good focus is somewhat tedious. To do so, I used a isolated street lamp located in a mountain village that is ~3km away. And, by chance, its bulb is still a neon bulb. So I took spectra of this bulb, selected the ...

Bonjour Hubert,

Voila les 2 fichiers FITS de mon observation du 9 février dernier.
Jacques

Du coup, par curiosité, je viens de faire une mesure du SNR de ces 2 spectres par la méthode du DER_SNR (cf https://www.researchgate.net/publication/44089652_DER_SNR_A_Simple_General_Spectroscopic_Signal-to-Noise_Measurement_Algorithm et https://www.stecf.org/software/ASTROsoft/DER_SNR/ ).
Pour ...

Bonjour Hubert,

J'ai effectivement acquis deux spectres de 3600 s en 6 poses de 600s chacun. Ceci dans un ciel de banlieue.
De plus, lors de l'acquisition du 2ème spectre, j'ai noté une nette perte de flux due vraisemblablement à des nuages élevés (durs à identifier en pleine nuit). Et la lune ...

Encore un autre spectre fait en 2 parties avec un Uvex600 au foyer d'un RC300 dans un ciel de banlieue.
L'identification des raies est assez pifométrique.

Captured with an RC12-Uvex600-Atik460ex configuration, a somewhat noisy spectrum of the supernova. Recognising any line pattern is really challenging.

Jacques

Hi Robin,

As far as I can see, Inti also suffers the "black box" syndrom. Even the Linux version is published as a pre-compiled binary, and not as a Python source code. For sure, binaries are far easier to deploy, since struggling with Python environments may be a real pain for most of us.
But I ...

A spectrum captured on the 1st of March with an Uvex-600.

Clear skies,
Jacques

Bonjour Nicolas,

Thanks for your fix.
Looking at some sites publishing spectra, and the FITS recommendations, BUNIT seems to be the recommended keyword in that purpose. In https://fits.gsfc.nasa.gov/users_guide/users_guide/node22.html , one can find :
BUNIT (character) represents the physical ...