Triton became the first known object orbiting Neptune.
People in this event
No images or videos for this event yet.
Related Events
A star chart helps distinguish Neptune 23 September 1846
Comparing sky positions with a chart made the new planet identifiable during the observing session.
Collaboration and rivalry shape Neptune's discovery 23 September 1846
The dated observation in Berlin followed calculations developed in France and Britain.
Lassell discovers Triton 10 October 1846
William Lassell detected Neptune's largest moon seventeen days after the planet's discovery.
Neptune gains its first known satellite 10 October 1846
The discovery showed that the newly identified planet has a moon.
Triton appears in an early Neptune search 10 October 1846
Lassell's telescope revealed a faint moving companion near the planet.
👉 A distant moon broadens planetary astronomy Current 10 October 1846
Triton became the first known object orbiting Neptune.
Carrington witnesses a solar flare 1 September 1859
Carrington observed bright white patches near a sunspot during his regular solar observations.
Hodgson also reports the solar brightening 1 September 1859
Richard Hodgson independently observed the unusual white-light flare.
A flare enters the solar record 1 September 1859
The 1 September observations are among the first recorded sightings of a solar flare.
A solar outburst precedes a magnetic storm 1 September 1859
A powerful geomagnetic storm followed; the sequence later helped develop the study of space weather.
Venus crosses the Sun in 1874 9 December 1874
The UTC catalog fixes the transit on 9 December, giving astronomers another rare timing opportunity.