spectro-aras.com

A Star'Ex spectrum taken the April 19.122 (I use here a 200 mm Newton stopped to 125 mm diameter and an experimental Star'Ex version (use special optical glass): http://www.astrosurf.com/buil/forum26/_novaCas2021_20210419_122_1.png A high contrast version: http://www.astrosurf.com/buil/forum26/_nova...

An blue-UV spectrum taken by using UVEX spectrograph on a 200 mm Newton stopped at 125 mm diameter (April 8): http://www.astrosurf.com/buil/forum26/_nova_Cas2021_20210408_048.png A visible spectral range spectrum captured by using Star'Ex spectrograph and a 200-mm Newton (April 9): http://www.astros...

A "far" IR spectrum taken by using Star'Ex + 300 lines/mm grating blazed at wavelength 1 micron + ASI294MM camera : http://www.astrosurf.com/buil/forum26/_novacas_2021_20210402_061.png The Pashen line # 8 in emission at 10049 A is easily now detected. For the fun, the Vega spectrum up to P...

Visible part of the spectrum for Mach 29.138 (Star'Ex 600 lines/mm spectrograph + Newton 200 mm): http://www.astrosurf.com/buil/forum26/_novacas2021_20210329_138_1.png http://www.astrosurf.com/buil/forum26/_novacas2021_20210329_138_2.png Red and infrared spectrum for March 30.120 (Star'Ex 600 lines/...

A near-IR spectrum (25-March-2021) - Pashen series is in emission:



Christian Buil

New processing of Star'Ex spectrum for the 23 March (the near-IR 7065A He is now visible):






Christian Buil

A spectrum for the 23-March-2021 taken by using a Star'Ex spectrograph (600 l/mm grating + 23 microns slit) on a 8-inch Newton telescope. The exposure is 12 x 300 seconds : http://www.astrosurf.com/buil/forum26/_novacas2021_20210323_144_1.png A more contrasted display: http://www.astrosurf.com/buil/...

Sol'Ex (pour Solar Explorer) est un petit instrument que j'ai conçu avec l'idée d''être réalisé en impression 3D et avec un minimum de moyens dans le but d'observer l'atmosphère solaire dans la raie de l'Hydrogène, mais aussi toute autre raie de votre choix. Comme il se doit ici, il s'agit d'un spec...

Une image dans le raie D1 du sodium (l'émission dans la chromosphère est très faible) : http://www.astrosurf.com/buil/forum26/_demo_D1.jpg La différence de brillance du disque entre la droite et la gauche vient de l'effet Doppler vient probablement de la rotation du Soleil sur son axe (un bord s'app...

A spectrum taken the Dec. 13, by using a very small refractor, a Takahashi FS60 (60 mm diameter) and the Sol'EX spectrograph (1200 lines/mm grating + 10 microns slit) + 4 x 900 seconds exposure: http://www.astrosurf.com/buil/forum26/_novaper2020_20201213_828.png The resolution is R=3200 by using the...