Robin - you've certainly cracked the multiple-stack routine to get these long effective exposures. Well done. You perhaps need to move up the aperture stakes...
Hi all A new version of Visual Spec is out. See Valerie Desnoux post on spectro-l below Robin ... From: valérie desnoux To: spectro-l@yahoogroups. com Sent:...
I have been experimenting with a setup to try to record a solar spectrum just before totality during the March total eclipse, using Baader Astrosolar film as a...
Robin - I used a lo-grade [relatively inefficient] transmission grating visually for 1996[?] total in India on the final crescent but shaded the zero order...
Hi Maurice, Oh, the first priority is definitely to enjoy the event (having been clouded out in France in 1999 with only a couple of minutes to go.) I will...
If anyone finds a gap in the clouds, reccurent Nova RS Ophiuchi is in outburst. Brighter than recent outbursts in 1958, 1967 and 1985, it is reported as mag...
Got up early this morning to catch my first glimpse of this famous recurrent Nova and I also managed to find a gap in the clouds to take a spectrum showing an...
... famous ... take ... (Interestingly, ... Thanks Dez, Well it might just be possible to make an estimate of the expansion velocity from the width of the H...
Well noted Robin - OIII emission can become prominent on decline - my best example is N Aql 1999[2] at http://www.astroman.fsnet.co.uk/naql2p2.htm best Nytecam...
... Oh yes... That should make a nice colour shift in the eyepiece if it is still bright enough. I must admit, I am struggling to see any red, It looks mainly...
... if ... Hi Dez, It has the same pixel size as your existing KAF401 chipped Genesis so at the same ccd to chip distance the results should be identical, just...
Hi Robin - seem to have lost your regular email address - hope this reaches you. Have defocused, boosted colour saturation and labeled stars as attached....
Hi Robin - another attached. Colours don't hold up with very bright or faint stars. Maurice ... Email sent from www.ntlworld.com Virus-checked using McAfee(R)...
Hi Maurice, robin_astro at hotmail dot com will find me I am quite impressed the colours hold up as well as they do. The filters are not exactly photometric...
... clouds to ... expansion ... Well the H alpha FWHM works out at 90 Angstroms which I make equivalent to (with no relativistic correction) a velocity of 4100...
Dear all Our school Star analyser arrived yesterday & it's now safely installed in the filter wheel at school. This evening's weather started out promising at...
At last another chance for a low resolution spectrum this morning http://mysite.wanadoo-members.co.uk/astro2/spectra_24.htm VC200L, Star Analyser grating + SC3...
First let me say hi to everyone. I'm new to the group and the resident rookie. I'm looking forward to undertaking this new aspect of observing. I just today...
... Hi George I too am new to the group & I've just purchased a Star Analyser for my school. I'm hoping to get going soon too. I'll probably start with ...
Nice to meet you Dez, I'll be looking forward to comparing notes. George ... aspect ... looking ... doing ... to do ... good ... not as ... received. ... for...
Well here is the rookies first light effort. I'm sure I could have picked a better example. I hope some of the resident experts can help me move on to Step...
Hi George and Dez I too am a rookie with staranalyser. If you don't mind I'll share my fumbling efforts with you. Terry Butt Te Horo, New Zealand. 175d 07m....
Hi George, Dez, Terry Welcome to the group. Things have been a bit quiet here of late but I am always keeping an eye on things to see if I can be of help. You...
Hi George, Congratulations on your first spectra I can see a couple of obvious lines in your Pollux spectrum. The broad dark band at the far left in the Infra...
Thank you Robin for taking the time to provide so much information on my first images - Just from the short time that I had to use the Staranalyzer last night,...
Hi George, This site has quite a few visual spectra of various spectral classes at the sort of resolution the Star Analyser produces. It is in French but...
Thank you, I don't want to be too much trouble. I'm hoping that the images I took tonight will help me work through the steps in Vspec. I figure I'll collect...
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