spectro-aras.com

Hi Jean-Philippe,

Thanks a lot for your post ;)
Getting serious but limit of my humble skywatcher 250mm has been reached apparently ! I should have increased exposures. Particularly when I see the nice spectra of Robin.
And too cloudy at the moment to do it again, unfortunately.
Hope you are ...

Hi Everyone,

A new Supernova discovered last 2nd of April into NGC3147 (well placed for northern hemisphere observers), to share with you. Easy to catch at the begining of the evening, it reached to my estimation a Mag 16 (after a Mag 17.7 when discovered).

Link to get the coordinates : https ...

Hello Etienne,

Merci à toi pour ces précieux conseils et j'étais en effet en train de m'orienter sur un nouveau réglage de mon Alpy. Ma résolution est de 490 sur ce spectre mais je dépasse rarement les 500 sur mes autres acquisitions. Ce réglage s'impose ! ;)

J'avais repris tous mes brutes après ...

Hi Etienne, Hi Paolo,

Many thanks to you for your remarks. By comparison with your Alpy, Etienne, and the last Alpy spectras on the data base, I conclude I will have to work on a better resolution. For sure ! And maybe a better focusing directly on the science camera instead of guiding camera, as ...

Hi all,

Here is my spectra taken last night, the 19th, with an Alpy 600 and a Newton 250mm. Based on 10 pic of 600 seconds each.

Nova Per2020 19012021 Fred Pastor.jpg

Despite the strong intensity of the Halpha, we can't see the absorption at the top. Guess the limit of the low resolution (I ...

Bonsoir à tous,

Profitant d'un début de soirée clément, je viens de prendre ce soir 9 spectres de 10 minutes sur la Nova Per 2020. La magnitude doit approcher les 12 maintenant.

rspec nova Per 2020 11 01 2021.jpg

On retrouve bien cette large raie Halpha avec ses oscillations au sommet. Ce soir ...

Hi All,

Hopefully Meteoblue was right tonight, showing only a two hours clear sky over Pyrénées Mountains. The time to take a spectrum of this Nova, without filter :
Intensity of the Halpha remain strong with an intensity at 15.50.

Cheers

Fred

Hello,

Voici ma contribution sur 10 poses de 10 minutes hier soir, dimanche 29 novembre.
Etoile de ref 48 Per.
Bon ciel à tous pour la suite du suivi.

Fred

Hi Robin,

Excellent idea. Will do it shortly.

In the meantime, I moved my telescope again on SN 2020uxz last few days, but didn't dare to take spectrum regarding the faint situation (and limit of my set up). According to Prism, I found a Magnitude of 14.9 by comparison.

Below my guiding view and ...

Merci à vous trois pour vos encouragements et conseils :D

En effet, j'ai pris la mauvaise habitude de ne pas assez renseigner les spec, en en-tête.

Sur cette deuxième prise, je suis resté sur la même étoile de ref et même temps de pose (ayant observé assez de signal): 7 x 10 min

Pour mon set up ...