| 29 January 2018 |
United Kingdom
|
Astronomy
|
Astrolabes calculate time and celestial altitude
|
| 29 January 2018 |
United Kingdom
|
Astronomy
|
Instrument makers combine craft and astronomy
|
| 29 January 2018 |
United Kingdom
|
Astronomy
|
Islamic scholars transform an ancient device
|
| 29 January 2018 |
United Kingdom
|
Astronomy
|
British Museum publishes a guide to Islamic astrolabes
|
| 1 September 1859 |
United Kingdom
|
Astronomy
|
A solar outburst precedes a magnetic storm
|
| 1 September 1859 |
United Kingdom
|
Astronomy
|
A flare enters the solar record
|
| 1 September 1859 |
United Kingdom
|
Astronomy
|
Hodgson also reports the solar brightening
|
| 1 September 1859 |
United Kingdom
|
Astronomy
|
Carrington witnesses a solar flare
|
| 10 October 1846 |
United Kingdom
|
Astronomy
|
A distant moon broadens planetary astronomy
|
| 10 October 1846 |
United Kingdom
|
Astronomy
|
Lassell discovers Triton
|
| 10 October 1846 |
United Kingdom
|
Astronomy
|
Neptune gains its first known satellite
|
| 10 October 1846 |
United Kingdom
|
Astronomy
|
Triton appears in an early Neptune search
|
| 11 January 1787 |
United Kingdom
|
Astronomy
|
Herschel discovers Titania
|
| 11 January 1787 |
United Kingdom
|
Astronomy
|
A distant moon appears near Uranus
|
| 11 January 1787 |
United Kingdom
|
Astronomy
|
Uranus proves to have companions
|
| 11 January 1787 |
United Kingdom
|
Astronomy
|
A powerful telescope extends moon searches
|
| 11 January 1787 |
United Kingdom
|
Astronomy
|
Herschel discovers Oberon
|
| 11 January 1787 |
United Kingdom
|
Astronomy
|
A second Uranian satellite is recorded
|
| 11 January 1787 |
United Kingdom
|
Astronomy
|
Two moons emerge on one observing night
|
| 11 January 1787 |
United Kingdom
|
Astronomy
|
The outer Uranian moon becomes known
|
| 13 March 1781 |
United Kingdom
|
Astronomy
|
Herschel spots the object later named Uranus
|
| 13 March 1781 |
United Kingdom
|
Astronomy
|
A faint object changes the planetary census
|
| 13 March 1781 |
United Kingdom
|
Astronomy
|
Telescopes enlarge the known solar system
|
| 13 March 1781 |
United Kingdom
|
Astronomy
|
Uranus enters Herschel's observing log
|
| 5 July 1687 |
United Kingdom
|
Astronomy
|
One theory links falling objects and planets
|
| 5 July 1687 |
United Kingdom
|
Astronomy
|
Astronomy gains a mathematical framework
|
| 5 July 1687 |
United Kingdom
|
Astronomy
|
The Principia sets out planetary mechanics
|
| 5 July 1687 |
United Kingdom
|
Astronomy
|
Newton's Principia is published
|
| 4 December 1639 |
United Kingdom
|
Astronomy
|
Venus appears as a small black disk
|
| 4 December 1639 |
United Kingdom
|
Astronomy
|
A predicted transit becomes visible
|
| 4 December 1639 |
United Kingdom
|
Astronomy
|
Crabtree independently sees Venus on the Sun
|
| 4 December 1639 |
United Kingdom
|
Astronomy
|
Horrocks observes Venus in transit
|
