The New Solar System: Beatty, O'Leary, Chaikin - various editions.
Got that, stopped at the 3rd edition, binned the earliest two - all lies, a quick check shows I've got the 3rd and 4th editions!
The Milky Way - Bok and Bok
got that, probably the last edition, there's a thread on that one already though, with a good review. Also notice Guide to the Galaxy by Henbest and Couper coming out of the same thread (remember them?).
Righty-oh
Comets by Yeomans
Comet of the Century by Schaaf
Moon, Mars and Venus - Rukl
Cambridge photographic atlas of the planets
Meteorites and Their Parent Planets by McSween
among others
Atoms, Stars and Nebulae 3rd edition by Aller
Malin's classics Catalogue of the Universe, View of the Universe and Colours of the Stars, all colour, all astrophotography on big scopes, the rabid astro book collector should have all of these.
Coffee table or just big anyway books include Moore's New Atlas of the Universe, CUP's Cambridge Atlas of the Universe, CUP's Astronomy and Astrophysics Encyclopedia, Moore's Astronomy Encyclopedia, Guiness Book of astronomy, all for general and exotic stuff (mostly as of the 80's 90's) and to a large extent for the pretty piccies in the "atlas" ones, they're not really atlases, more coffee table but still with data for object types, simplistic encyclopediae but not in encyclopedia or dictionary format.
Ye olde texte bookes :-
Classification of the Stars by Jaschek and Jaschek
Both volumes of Astronomy by Roy and Clarke, now they are obscure. I binned volume 1 once as irrelevant only to have to buy it back a decade later.
The Physical Universe by Shu, apparently a bit of a classic.
Astronomy Before the Telescope, an essential CUP paperback for the 'astrohistory' buff or even astro bibliophile
An ancient penguin dictionary of astronomy, really old, one of my few general second hand bookshop purchasers (there was usually no astro worth having in those, I don't like the old classics popular with some).
The ancient Everyman's Astronomy by Stoy, from the Everyman library series. They don't do books like that any more! Good stuff for about half a century old.
And the only true real solid textbook, Moore's 'O' level astronomy, which the school let me keep afterwards. Got a 'B', 25% was practical and neither I nor school had any kit nor for the school astro books in those days, it wasn't a regular course, one of the physics teachers decided to go for it. One night, whilst pointing the school scope with short lived astroclub in me early teens I muttered 'I wish there was an o level in this', must've been about the time of picking courses for o level, and he said there was, and robert was your mother's simian sibling.
I had a serious clear out and binning some time back of early 70s cosmology and kiddyish or beginner books, so the remainder are quite thing. More than half the books are observing books for one type of astronomy or other, or data books like Sky Cat 2000 Vol 2 or NGc 2000.0 or even uranometria's deepsky field guide, which latter is useless to me nowadays but I still can't force myself to bin it. Donating is no good, clubs it just goes in the basement, people just don't want a copy, usually because they have one! Some esoteric CV books got donated on for free, asked for a fiver to cover shipping, showed how out of date I was, and I'd also forgetting how much books way (like water, quite deceptive), so it cost a tenner. I don't mind giving stuff away but I don't like subsidising those who can afford to cover the shipping costs.
When it comes to observing it is interesting that on these fora no one ever mentions the two volumes by Martinez published by CUP. Granted the ccd bits will be a bit neolithic now, but they were bought as the best I'd ever seen to that depth that had stuff in for practical visual work that I had not read anywhere else. Unfortunately soon after light pollution levels jumped locally.