spectro-aras.com

Hello everyone,

We are delighted to launch a new collective spectroscopic observation campaign.

This time, the target is Sigma Geminorum, also known as HD 62044. It is a K1 III-type star with a visual magnitude of V = 4.2, well suited for high-resolution spectral observations, even with modest ...

Je n'ai pas une vision radicale, ce n'est pas mon truc, et je n'oppose pas la technique et la science que l'on peut faire avec. Oui, il faut une finalité, mas attention, cette finalité n'est pas obligatoirement de faire de la "science", un mot qui fait peur auprès de certaines personnes (à tord ...

A high-resolution Star'Ex spectrum (R=19 000) made on June 13th from Antibes and like Guillaume B, using a small diameter, here an 80 mm Askar scope (model PHQ), all on an AM5 mount, and managed via ASIAir (except for the spectra storagel under Prism):

http://www.astrosurf.com/buil/forum28/_tcrb ...

Alpha evolution at high spectral resolution (instruments from 4 to 8 inch + Star'Ex HR, on ZWO AM5 mount) :



C. Buil

The next update will offer greater flexibility. For example, BESS_ESPR will be optional. Please note, however, that it is primarily up to the software designers to ensure that the data produced is as compatible as possible with the analysis applications (BESS, STAROS, ...), and not the other way ...

It is indeed an artifact in one of the images of your spectrum (a badly corrected hot spot ?). It is not critical at all. Look at your 5 images one by one and you may find the origin.
It is very easy to see that this is not a real line: the thinnest physical lines that can be observed are the ...

I announce the official launch of the STAROS public spectral database:

https://staros-projects.org

STAROS is a database whose originality is to address observation campaigns on an object at a time and for a limited time. For example, an observation project can be opened to follow the news (nova ...

Joan,

Your questions are interesting and normal.

My goal here is mainly to draw the attention of observers who use equipment that is not necessarily very expensive, but efficient, because it corresponds to the new technology. This is the case of astrophotographers: it doesn't take much to be able ...

Un point de vue sur une autre façon de pratiquer la spectrographie aujourd'hui : moins chère, plus simple, plus ouverte :

http://www.astrosurf.com/buil/forum28/L ... hie_20.pdf

Christian Buil

Quelques spectres de C/2022 E3 obtenus à diverses résolutions. Sur celui pris avec spectrographe Star'Ex équipé d'un réseau de 300 t/mm et monté sur un petit astrographe de 60 mm de diamètre seulement, on peut apercevoir des raies H2O+ (une première pour moi), Elles se forment assez loin du noyau et ...