spectro-aras.com

The prototypical symbiotic star AX Per looks bright
Spectroscopy welcome (low and high res) for the database.

François Teyssier

Une partie du catalogue d'Hipparque a été restaurée grâce à une technique d'imagerie spectrale:

https://www.cnrs.fr/fr/decouverte-dextr ... perdu?s=03

Emouvant!

Dear Joan, A new great step for your setups! High quality results. The outoff focus technics is very interesting. It will allow to flux calibrate the spectra. The must. I suggest time series of T CrB (one the few symbiotics which shows flichering at minutes time scale) What are the current cameras (...

There will be many new novae, especially in Southern Sky.
Cloudy skies is a good opportunity to work on the data -;) and improve his (and OUR) knowledge.

All the best,
François

Thanks, Paul! I'm sure François will appreciate on-going observations. Yes! One spectrum of a "new" star (in Human Knowledge) is nothing more than a new object in a collection. It allows its classification and eventually stats. This is the Aristotelian level of science. Medium and long ter...

Bonjour Michel, Merci pour avoir pointé cette anomalie. Il y avait dans la base une série d'étoiles qui n'avaient rien à y faire. Peut-être une erreur lors d'une mise à jour. La version nettoyée : http://www.astronomie-amateur.fr/Documents%20Spectro/Outils/ReferenceStarFinder_V3.xlsm Désolé pour le ...

Excellent,
Le spectre est le bienvenu dans la base si tu veux m'envoyer le spectre.

François Teyssier

A RNASS note: Dimming of the Symbiotic Mira HM Sge https://iopscience.iop.org/article/10.3847/2515-5172/ac8808 HM Sge shows a very nice emission lines spectrum, looking like a PN Last spectrum in the database (https://aras-database.github.io/database/hmsge.html),secured by Pavol Dubovsky: asdb_hmsge...

Hi Rainer, Interesting. But the height of a line is a very poor measure as it depends significantly of the resolution at that wavelength. The measure of the equivalent width (EW) will provide more accurate measures. I suggest using plot spectra (Tim Lester), a very nice tool. http://spectro-aras.com...

Bonjour Didier,

Un sympathique projet collectif!

Quels sont les spectroscopes dont le groupe dispose?

Cordialement,
François Teyssier