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Because trains are not running again weekends, I viewed on line.
Volume, wavered from soft to loud.
Picture, close ups of speakers appeared washed out by bright lights, other views ok.
I enjoyed the meeting, thank you for live streaming.
Jack
Essex UK
Bill,
Well done, good work.
I have NBS monograph 32 Tables of spectral-line intensities parts 1 + 2, Meggers.
Multiplet tables of astrophysical interest Moore, if this helps with identification.
Regards,
Jack
Canon EOS400D 1/15 sec ISO 400 Skywatcher Evostar 100 ED. Herschel wedge white light.
Many thanks to Abi for the use of her refractor.
Regards to all,
Jack
Essex UK
Bill,
‘The power of spectroscopy’ your right about that, 85% of what we know about the Universe comes through dispersing the light of an object through a spectroscope !
So, keep up the good work.
Regards,
Jack
Essex
Kevin,
HD43378 is listed as 2 Lyn an eclipsing binary spectral type A2Vs C;
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=2+Lyn
Also listed on p.133 + 353 as A2 V Starlist 2000 a handy reference book by Richard Dibon-Smith.
HTH,
Jack
Essex UK
Kevin,
I have looked at your kit on your ‘comminity page’ very impressive.
How do you switch the calib and flat lamps on and off.
Shelyak have a gadget for this.
It is possible to operate robitically I only heard of one instance of this in spectro.
PRISM and ACP software have robotic functions, which will enable you to create an observing plan.
Regards,
Jack
Essex UK
Kevin,
I hard wired an Ethernet cable from obo to upstairs very reliable, works better than wifi.
Jack
Essex UK
Tony,
Try this, I and many have used him and OK.
Not sure if he repairs astro cameras but worth an enquiry.
http://www.ilesleycamerarepairs.com/
Regards,
Jack
Essex UK
Will they ever learn to get their facts right ! source Daily Mirror 2019-01-20.
I hasten to add I do not buy the paper, just browsing the newspaper stand in Tesco.
Regards,
Jack
Essex UK
David,
While we are all fallible, your right it depends on how the question is worded.
When I was studying at the OU, this is something we had to understand and master, in order to get good scores on tutor marked assignments and exams.
I agree its a very interesting question, which has only recently been researched and answered correctly.
We have all learned something new !
Regards,
Jack
Essex UK
On a long term average which of the 3 planets is most often closer to Earth ?
As Steve and David have given the correct answer Mercury, it would be pointless leaving it till next week.
Follow the link on David’s post for more a more detailed explanation.
Well done everybody who responded.
Jack
Essex UK
Nick,
Thanks for the info on NH technical details.
It makes it all the more interesting and which the media don’t give.
Regards,
Jack
Essex UK
Bill,
Thanks for an interesting video and spectrum to show what its composed of.
Regards,
Jack
Essex UK
I was one of the first outsiders to see Moon rock and dust samples in Nov 1969 bought back by Apollo 11, at Queen Mary University of London Chemistry department, who were given small samples for analysis.
Jack
Essex UK
