SS Cyg

[Olivier GARDE]

Last night, I try to do SS Cyg with eshel spectrograph, not very easy because of the weather (lot of clouds).



The full spectrum, very noisy

Order 34 with H Alpha emission line

[umberto sollecchia]

Bonsoir à tous, placez le profil de l'étoile observée la nuit du 04 -08- 2015.

Profilo SS Cyg.png (5.98 KiB) Viewed 5654 times

sincèrement Umberto

[Peter Somogyi]

I've always wanted to catch this moment on a CV with the LHires for a long time, now it seems the right moment.

Sum of the 23 x 10 min, R~2380 (35um slit + 600/mm grating):

_sscyg_20150808_853_psomogyi.png (22.77 KiB) Viewed 5595 times

Animation of this 3.8 hours (continuous shoot with the ATIK 414, 23 x 10 minute):

@ss_cyg_20150808.gif (179.99 KiB) Viewed 5595 times

Cheers,
- Peter

[Peter Somogyi]

And the H-beta part of the next evening (18 x 10 min):

_sscyg_20150809_804.png (16.71 KiB) Viewed 5566 times

Merged every 2 exposures due to noise (9 x (2 x 10) min):

@ss_cyg_20150809_Hbeta.gif (40.18 KiB) Viewed 5566 times

Processing here was tricky, "wavelength register" feature misbehaved, had to work it around (ref.star was processed only at final stage, with some extra manual work in IRAF needed).

Enjoy!
Peter