Observations - 15th March 2020

Hi Aubrey,

Good call on the weather tonight. I've just returned from my back garden, but more about that tomorrow.

For now, many thanks for explaining how not all carbon stars are variable - much appreciated.

Clear skies,

Darren.

Hi Aubrey,

I have some good news: I've managed to find some information on those other two astronomers that you mentioned in original post. Samuel G. Barton was a Professor of Astronomy at the University of Pennsylvania during the 1930s, and was selected as a representative of the American Astronomical Society (AAS) to serve on the General Committee for the 200th Anniversary of the Birth of David Rittenhouse. He was an advisory astronomy panel member for the magazine 'Wonder Stories', and translated from Latin the 'names of satellites' (see pages 8 -10).

books.google.ie/books?id=6YGqFZ_RPdQC&pg...%20astronomy&f=false

 He also wrote a number of books.

archive.org/details/guidetotheconste032859mbp/page/n5/mode/2up

And one you're probably more interested in:

books.google.ie/books?id=_9cUvwEACAAJ&si...c=buy&source=gbs_atb

Interestingly, he draws from the bible in some of his published work:

www.jstor.org/stable/15732?seq=1

I even managed to find a photo of him at one of the AAS's Meetings. Here is the photo; he's in the back row, 8th from the left (pretty much center), and next to the very tall man.

had.aas.org/sites/had.aas.org/files/mtg49-1932.jpg

And here is the 'Key to plate':

had.aas.org/sites/had.aas.org/files/mtg4...2identifications.jpg

Believe or not, as I looked through other group photos from various AAS meetings, Struve can be seen. For example, here is another photo from one of the meetings:

had.aas.org/sites/had.aas.org/files/mtg51-1933.jpg

And here is the 'Key to plate':

had.aas.org/sites/had.aas.org/files/mtg5...3identifications.jpg

The other gentleman you mentioned in your posts, is still very active. The link below will give a flavour of what I mean:

www.iau.org/administration/membership/individual/6837/

I'm sure others have probably lots of additional information on those two individuals, but the above is a start.

Kindest regards,

Darren.

I had to split my post into two because I had too many links.

Hi Darren.
This is truly amazing!
I wasn't expecting this enormous amount of information.
It seems I will be keeping an eye out for double stars with Samuel Barton designations in the future.
I'll check out the other links tomorrow.

Kindest regards,

Aubrey.

Hi Darren.
It appears Jean-Louis Halbwachs is alive these days.
Someone is free to correct me.

Kind regards,

Aubrey.

You're more than welcome Aubrey. You're always so generous with knowledge and your equipment; think of it as my way of saying 'thanks'.

In all honestly, I like hunting down information, and it's a nice way to learn more about this wonderful hobby. So, no trouble at all!

I thought he might, as his IAU profile is fairly up-to-date. How many more discoveries will he make in our lifetime? 

Kindest regards, 

Darren.