Hi Glen,
Thanks for the detailed information
Excellent
It’s remarkable how they discovered all these galaxies with by today’s standards, primitive equipment.I suppose in those days light pollution didn’t exist , dark skies did help a lot.
There’s also a good write up about the Herschel’s in the book “Pearls of the Southern Skies” ( written by 2 notable South African Astronomers ) I bought it a few years ago.
https://www.amazon.com.au/Pearls-Sou.../dp/1770854452
My wife and I visited the Royal Observatory Greenwich as part of our UK tour this time last year.
Also some excellent historical info about the Herschel’s and other British astronomers in the museum.
They both lived extraordinarily long lives considering the average life expectancy was around 50 to 60 in those times.
Here’s a couple of portraits I found in the museum ( copies obviously)
Cheers
Martin