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Siddons Patera
Magellan radar image
Feature type	Patera
Coordinates	61°36′N 340°36′E / 61.6°N 340.6°E / 61.6; 340.6
Diameter	47 km
Eponym	Sarah Siddons

Siddons Patera is a volcanic caldera on Venus surrounded by collapsed lava tubes.

Outline of Venus

Geography

General

Regions

Regio	Alpha Regio Asteria Regio Beta Regio Ovda Regio
Terrae	Aphrodite Terra Ishtar Terra Lada Terra

Mountains
and
volcanoes

Plains and
plateaus

Canyons and
valleys

Other

Moons

Neith (hypothetical moon)

Astronomy

General	Aspects Orbit Phases
Transits	1631 1639 1761 1769 1874 1882 2004 2012
Asteroids	Venus-crosser asteroid Zoozve

Past	Sputnik programme Sputnik 7 Venera program Venera 1 Sputnik 19 Sputnik 20 Sputnik 21 Kosmos 21 Venera 1964A Kosmos 27 Venera 2 Venera 3 Kosmos 96 Venera 4 Kosmos 167 Venera 5 Venera 6 Venera 7 Venera 8 Kosmos 482 Venera 9 Venera 10 Venera 11 Venera 12 Venera 13 Venera 14 Venera 15 Venera 16 Mariner program Mariner 1 Mariner 2 Mariner 5 Mariner 10 Zond program Zond 1 Pioneer Venus Pioneer Venus Orbiter / Pioneer 12 Pioneer Venus Multiprobe / Pioneer 13 Vega program Vega 1 Vega 2 Magellan Galileo Cassini–Huygens IKAROS MESSENGER Shin'en Venus Express
Current	Akatsuki BepiColombo
Planned	DAVINCI EnVision VERITAS Venera-D
Proposed	European Venus Explorer VAMP VISE VISAGE VICI VOX Shukrayaan-1
Proposed crewed	Colonization Inspiration Mars (flyby) Terraforming
Other	Geological mapping of Venus Artificial objects on Venus

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