[Mr Jack Martin]

Ray,

Its got nothing to do with PC.

Not sure where you get that idea from !

Jack

[Mr Jack Martin]

Nick,

I agree, its important to get the balance right.

Carolin Crawfords input to the program is excellent.

Clear skies,

Jack

[Mr Jack Martin]

Bill,

Good work, well done.

Jack

Essex UK

[Mr Jack Martin]

The scene at 03.57 UT.

Clear skies,

Jack

Essex UK

[Mr Jack Martin]

The state of play this morning in the pre dawn sky 04.21 UT, the 3 planets are starting to align.

 Regards, 

Jack

[Mr Jack Martin]

Thanks for your comments I should have added taken with my Canon PowerShot G7 MK3, F2.8 1/8 sec ISO3200 hand held leaning out of my bedroom window.  

Regards,

Jack

[Mr Jack Martin]

Here’s my effort from Rayleigh Essex, nearly 1 hour before, as Damien asks please let us know if the pics are valid for your experiment.?

Regards,

Jack

[Mr Jack Martin]

Due to dimming, is it changing its spectral type ?

Regards,

Jack

Essex  

[Mr Jack Martin]

Thank you all for your explanations, its now clear and correct as to when this is.

But, I can see why others would disagree.

It also depends on your level of knowledge about the subject, which is after all of Astronomical significance.

Regards,

Jack

Essex UK

[Mr Jack Martin]

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

[Mr Jack Martin]

Congratulations and well done Robin, you are an inspiration to us all.

Good to meet you again.

Jack

[Mr Jack Martin]

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 

[Mr Jack Martin]

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

[Mr Jack Martin]

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

[Mr Jack Martin]

Bill,

Excellent spectra some good science there, well done.

Jack

Essex  

[Mr Jack Martin]

Peter,

I am looking forward to meeting the others

Regards,

Jack

[Mr Jack Martin]

Robin,

Good work, so nice to see such detailed spectra and information.

Regards,

Jack

Essex UK

[Mr Jack Martin]

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

 

[Mr Jack Martin]

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

[Mr Jack Martin]

Kevin,

I hard wired an Ethernet cable from obo to upstairs very reliable, works better than wifi.

Jack

Essex UK

[Author]

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