Hello all, This is a new message to announce that BeSS have reached the 800 spectra ! Remember : end of February, 6 months ago, I told you we had 400 ...
On the morning of July 30th I took some spectra and obtained the following spectrum of EA. There are a lot of atmospheric lines that needs to be eliminated but...
Greetings all, Last 19th night I captured spectra of RR Lyr for 1 hour. The film here: http://astrosurf.com/joseribeiro/20080719RRLyr.gif It is my 1st spectrum...
My website has moved to a new location at www.threehillsobservatory.co.uk Please update your bookmarks Clear Skies ... Robin Leadbeater 54.75N 3.24W ...
Greetings all, Last 17th I managed a follow up of CX Dra. The film can be seen here: http://astrosurf.com/joseribeiro/20080717CXDranome.gif Best Jose ...
http://www.iceinspace.com.au/index.php?id=63,500,0,0,1,0 This article details my latest project. Hopefully it will encourage others to get involved in...
I had to use Windows Restore last night and lost several Vspec profiles. It looks like Widows (XP) does not recognise the Visual Spec spc files as data files...
Hi all, A complementary copy of the latest BAA variable star section circular containing a summary of the AAVSO/BAAVSS meeting earlier this year can be...
combien un reseault de 600 L\mm donnerait avec une camera avec des pixel de 2.2 quel est la formuile de calcul jack47'N71'w Alain, Le Star Analyser a un...
Hello, I has been recently brought to my attention the following website: http://www.eneas.info/ Go to lecture notes and check some excellent articles (almost...
Hi everyone, There have been very interesting discussions on the list lately. I have a question about flat fielding in spectroscopy. I understand flat...
Hi Just to add that there is no need to have an echelle spectrograph for the RR Lyrae observation. In fact a Lhires with 2400 and even a 1200 l/mm grating is...
Wow !!! Those H alpha profiles certainly show the dramatic rapid expansion of the star. - Very nice I looked up the Gillet paper you refered to: Bump, hump...
Hello all, Digging in the European Virtual Observatory, I managed to plot our BeSS spectra. But I came into a database called "BeSS-SSAP" which seem to be the...
I am thinking of making a custom focal reducer to bring down the C14 to just above f/8. A 0.75x focal reducer would reduce f/11 to f/8.25, hopefully good...
Attached is a spectrum of Betelgeuse I took on the night of Feb 9-10. I was just starting to learn how to take images and getting to know the spectrometer and...
Hello all, Last 30th June, I've taken spectra of Delta Sco and 54 Cyg (id. Lam Cyg). - Dela Sco has his activity increasing, it needs more spectra; - 54 Cyg...
Dear all Due to SPAM attack, the forum has been greatly altered. My personal account was suspended and the table erased. In the meantime, the Forum is not as...
Hi All, The star WR 140 in Cygnus came up in one of the discussions. I went to that webpage that was attached in the email. This is a very fascinating star...
Hi All, The lhires3 is currently shipped with a slit set to 20um. A 20um width seems a bit too narrow for 14" telescope. What's the optimal slit width for a...
I am planning to experiment with calibrating my Lhires using spectrum discharge (pencil) tubes, which can be purchased on ebay for about $25 (also need a...
Hi I validated BeSS spectra today and I noticed that HD217050 and Lam Cyg exhibits variations since last oberved (about a year). Lam Cyg is interesting as it...
On Sat, 28 Jun 2008 19:39:23 -0000 ... I use a 27-30 um wide slit for a 12". It works very well on my site where sometimes seeing isn't good. ... Benji. ...
Hi My contribution to some points raised this week in several emails, and sorry if some has been already answered. About the planck continuum. Star theoretical...
Hi all, I have updated my webpage for the Nova Oph #1 aka V2670. I was only able to get three separate observations due to the unusually cloudy/rainy weather...
