Search found 1449 matches
- Sun Dec 05, 2021 5:00 pm
- Forum: Symbiotic Stars
- Topic: Suspected/Misclassified Symbiotics: spectra required
- Replies: 128
- Views: 145046
Re: Suspected/Misclassified Symbiotics: spectra required
Jaroslav, here the spectrum of TYC 1371-60-1, from your your target list. The spectrum is taken by using a Newton 250 mm f/4 telescope and un Star'Ex spectrograph (3D printing setup) at the low resolution version (R=750) : http://www.astrosurf.com/buil/forum27/_tyc1371-60-1_20211130_023.png (no appa...
- Sat Oct 09, 2021 5:00 pm
- Forum: Comets
- Topic: Comet Chury 67P)
- Replies: 2
- Views: 7494
Comet Chury 67P)
A very famous comet, Churyumov-Gerasimenki (67P), the Rosetta's comet, well placed on the northern sky. 2D views (Cote d'Azur sky pollution not removed) : http://www.astrosurf.com/buil/forum27/_comet_67P_2D_1_small.jpg http://www.astrosurf.com/buil/forum27/_comet_67P_2D_2_small.jpg The profile (UV C...
- Sat Oct 09, 2021 4:46 pm
- Forum: Cataclysmic Stars
- Topic: VY Scl CVs campaign for HST
- Replies: 2
- Views: 4820
Re: VY Scl CVs campaign for HST
Another spectrum of southern star VY Scl from Antibes (2-hours exposure, Star'Ex spectrograph oil a 10-inch f/4 telescope): http://www.astrosurf.com/buil/forum27/_vyscl_20211008.png Also a spectrum of GK Per in actual outburst (it's the nova 1901): http://www.astrosurf.com/buil/forum27/_gkper_202110...
- Sat Oct 02, 2021 12:03 am
- Forum: Cataclysmic Stars
- Topic: VY Scl CVs campaign for HST
- Replies: 2
- Views: 4820
Re: VY Scl CVs campaign for HST
A coordinated observation with Olivier for an instructive comparison. The star VY Scl observed this time from France, but at the very low elevation of 14° above horizon (very strong absorption in the blue because of the air mass). I used a 8-inch Newton only and the Star'Ex spectrograph configured f...
- Thu Sep 30, 2021 12:12 am
- Forum: Novae
- Topic: Alert! Nova Cas 2021 mag 9
- Replies: 128
- Views: 141424
Re: Alert! Nova Cas 2021 mag 9
Merci Benji !
Christian
Christian
- Wed Sep 29, 2021 9:37 am
- Forum: Novae
- Topic: Alert! Nova Cas 2021 mag 9
- Replies: 128
- Views: 141424
Re: Alert! Nova Cas 2021 mag 9
The appearance of nova Cas 2021, the September 28, 2021 with a Newton 200 mm f/5 and the Star'Ex spectrograph operated in low resolution (R = 2200) - 24 x 40 s exposure: http://www.astrosurf.com/buil/forum27/_nova_cas_210928-1.png http://www.astrosurf.com/buil/forum27/_nova_cas_210928-2.png A descri...
- Wed Sep 29, 2021 9:24 am
- Forum: Spectroscopes and Softwares
- Topic: Star'Ex spectrograph
- Replies: 2
- Views: 2779
Re: Star'Ex spectrograph
Star'Ex can easily be transformed into a low resolution spectrograph (R = 2000-2500), see on this page in part 4.4: http://www.astrosurf.com/solex/sol-ex-stars-en.html See also this video which shows my equipment and some of my observational "secrets" (in French sorry): https://youtu.be/5n...
- Thu Sep 23, 2021 11:24 pm
- Forum: UVEX Project
- Topic: UVEX(4) G600 IR slit25µ multi-fentes claires
- Replies: 1
- Views: 2597
Re: UVEX(4) G600 IR slit25µ multi-fentes claires
C'est très propre Pierre. Belle démo ! Actuellement je teste l'étalonnage permanent en haute résolution du coté de Halpha avec 4 lampes néon sur l'araignée du secondaire. Ca marche bien (j'ai un étalonnage à chaque image). Faut que je finisse d'intégrer le traitement dans SpecINTI (pour Star'Ex et a...
- Thu Aug 26, 2021 3:11 pm
- Forum: Spectroscopes and Softwares
- Topic: Star'Ex spectrograph
- Replies: 2
- Views: 2779
Star'Ex spectrograph
Je teste actuellement le spectrographe Star'Ex dans la configuration du kit optique 2 qui va être disponible en septembre prochain. Il s'agit d'une légère évolution du premier kit (meilleure correction chromatique, éléments pour fabriquer un système de guidage). Je rappelle que Star'Ex est une décli...
- Thu Aug 26, 2021 2:47 pm
- Forum: Novae
- Topic: Symbiotic recurrent nova RS Oph in ourburst !!!
- Replies: 112
- Views: 148559
Re: Symbiotic recurrent nova RS Oph in ourburst !!!
RS Oph at high resolution (R=26000) the August 19.828.(65 mm diameter refractor, Star'Ex spectrograph, slit 19 microns): http://www.astrosurf.com/buil/forum27/_rsoph_20210819_828.png RS Oph at very high resolution (R = 40000) the August 25.879 (65 mm diameter refractor, Star'Ex spectrograph, silt 10...