02 janvier 2012
Deux sessions d'observation en 6mn
Je m'amuse toujours avec la camera ultra grand champs. Des angles differents, pendant de longues heures d'observation sur deux nuits pour epier le ciel et le télescope.
02 janvier 2012
WR 134, HeII 5411

18 décembre 2011
Test of a new home made skycam
I made a sky cam with a DMK31usb camera and a 24mm f1.8 Zuiko lens.
First light during a whole observing session, about 8h of video, 1 image every minutes. The aim is sky monitoring during observation, detection of cloud and in the future, detection and photometry of transient phenomena.
Note, a possible evolution is to use this cam as a large field camera, with astrometry refinement to point faint targets. We will see...
Update, new cam, full moon
New upgrade, All Sky cam with a 2.8mm f1.8 C-CS lens, crescent moon... [Lire la suite]
14 décembre 2011
WR 134, HeI 5876

14 décembre 2011
WR 134, HeII4686

20 octobre 2011
An active V442 and outburst

10 octobre 2011
Hi resolution échelle spectra of SN2011fe

21 septembre 2011
SN2011 fe

11 juillet 2011
IAC80, a mission on delta scorpii at the Teide
For nine nights i have been there in good compagny. http://www.iac.es/eno.php?op1=3&lang=en
This mission was about the peri-astron of delta scopii and was a real success.
We have got in nine nights 30 Halpha spectra, 30 HeII 4500, 4686 and one H gamma. All taken with a LhiresIII 2400gr/mm and ST10XME camera. Exhausting sometimes...
Two articles in english are ingoing. One for Sky and telescope, relating this fantastic adventure, and one on a referee journal concerning the scientific facts. One other in a french... [Lire la suite]