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Yes, I think the best is to send the photometry to AAVSO database Which star have you used for comparison François Hi, François, I use HD 46608 (000-BBL-578) to do photometry (B:7.461; V:7.391 Rc:7.295). It's a good comparison star but you need a wide field scope to observe both stars. I use a 66/4...

Hi, everybody,

a fresh spectrum of SU Lyn from the last night. I'm doing also some BVR photometry with a cadence of 3-4 nights (one point per night for SU Lyn but also for AG Dra) but I don't know where to send the results. Maybe to the AAVSO database?
Greetings
Fran

Congratulations to everybody for your nice spectra.

Here is my contribution. The last night the DADOS performed specially well
Greetings
Fran

Congratulations to everybody for your nice spectra.

Here is my contribution. The last night the DADOS performed specially well
Greetings
Fran

Excel.lent, Joan, as always... Here is a comparison of two low resolution spectra of CH Cyg. The first one, taken in July 2016; and the last one, only two nights ago. The difference is amazing... :o Both spectra taken with the DADOS (R=800) and the newton 8". Also, I upload the photometric curv...

Impressive, Joan. I can't find enought words to qualify the Mussol's performance.

Salut!
Fran

Amazing spectrum, Olivier. With that resolution and the echelle, I wonder if observations made with low resolution spectrographs have an interest... Greetings Fran Hi Francisco, Of course yes, low resolution spectrum is important for 3 reasons : - You can do a spectrum with less exposure time than ...

Amazing spectrum, Olivier. With that resolution and the echelle, I wonder if observations made with low resolution spectrographs have an interest... Talking about photometry of this star, I think it is very important to choose an adequate comparison star. Unfortunately, the AAVSO sequence lacks of s...

Hello,

Ok, I will try to take a low resolution (R=800) and a medium resolution (R=6000) spectrum every month. For the moment, here is one taken five days ago.
Salut!
Fran

Très bons ces spectres, Joan, comme d'habitude. Je suis content de voir que la CCD marche bien à la fin! Et voici aussi quelques spectres fraiches de quelques symbiotiques... T CrB est encore en état "excité" ;) _axper_20170310_794_FPC.png _cicam_20170310_838_FPC.png _v694mon_20170310_907_...