°º djulik º° el FrenXicán


أهلاً وسهلا welcome bienvenue bem-vindos bienvenidos 歡迎

Contenu / Content | Menu | Recherche/Search

mardi 8 novembre 2011

2005 YU55 at 0.85 earth moon distance from the VLT

Colleagues in Paranal and I (from my couch in Santiago) observed the fast moving asteroid 400 meter across that is passing very close to us o :
We were excited when we spotted it as it was crossing our NACO field of view in seconds. We had to apply a fast tracking speed to the telescope (about 8.5 arcseconds per second of time). The adaptive optics loop struggled (I wish I had been there to press the buttons and try things. Gianluca did a good job I suppose but it's not the same, we really need a remote observing facility on Paranal.. hint hint). I then suggested to do some speckle imaging to attempt to reach the diffraction limit another way (than AO..) but the flux in Ks with 200 ms exposure was rather low. It's tough to hunt fast moving "rocks".
As they once pointed their webcam towards the real time display, I took a screen capture at the right time and 2005 YU55 is the white spot close to the center. 

Thanks to all the people involved at ESO.

vendredi 29 avril 2011

Spinning the milky way into twilight

At the Paranal Observatory, I have a room with view! 
Here are two shot taken successively: the first one is a 20-s exposure and the second one is 95 minutes on the same field. While the morning light is coming up the starry one is spinning down. The colors of the brightest stars (among which the southern cross ones in the center of the field) are well preserved.

mercredi 13 avril 2011

Mister Gaga Rin

50 years ago:

jeudi 10 mars 2011

Badinter exprime son ras de bol

samedi 5 mars 2011

Caxias jogando angola

vendredi 4 mars 2011

A glimpse of typical Chilean sandwiches

jeudi 3 mars 2011

quick visit through Valparaiso?

samedi 26 février 2011

Surprise at sunset

Berimbao do Paranal

A man was playing Berimbao a couple hundred meters from my room in Paranal.
I wonder who he is....

São Bento de Atacama?