Sea of Tranquility

the Sea of Tranquility (canonical)
Sea of Tranquillity (alternative)

Calque of Latin Mare Tranquilitātis (spelled with one L), from Latin mare (“sea”)+tranquilitātis (“tranquility”). Coined by Italian Jesuit astronomer Giovanni Battista Riccioli, by labelling a map created by Italian Jesuit optician Francesco Maria Grimaldi, and then published in 1651 in the Almagestum Novum.

(planetology) A basin in Nearside, Moon, Earth, Solar System; location of the first manned moon landing, in 1969.

en:Almagestum Novum
en:Francesco Maria Grimaldi
en:Giovanni Battista Riccioli
en:Sea of Tranquility (disambiguation)


Mare Tranquillitatis

Mare + Latin tranquillitātis. From Latin Mare Tranquilitātis (spelled with one "L"). From Latin mare+tranquillitās (literally “Sea of Tranquility”). Coined by Italian Jesuit astronomer Giovanni Battista Riccioli, by labelling a map created by Italian Jesuit optician Francesco Maria Grimaldi, and then published in 1651 in the Almagestum Novum.

der

(planetology) The Sea of Tranquility: a basin in Nearside, Moon, Earth, Solar System; a lunar mare region.

en:Almagestum Novum
en:Francesco Maria Grimaldi
en:Giovanni Battista Riccioli


Mare Procellarum

Blend of Mare + Oceanus Procellarum. Variation of Oceanus Procellarum; replacement of the rare "Oceanus" with the common "Mare", where many features on the Moon are called the 'mare' (the maria), and only this one feature is called 'oceanus'.

Oceanus Procellarum
Oceanus Procellarum#Translingual

(planetology) The Sea of Storms: synonym of Oceanus Procellarum (“Ocean of Storms”); a basin in Nearside, Moon, Earth, Solar System


Mare tranquillitatis

la-proper noun

Mare tranquillitātis n sg (genitive Maris tranquillitātis); third declension

Mare tranquillitātis (canonical neuter singular)
Maris tranquillitātis (genitive)
Mare Tranquillitātis (alternative)
mare Tranquillitātis (alternative)
Mare tranquilitātis (alternative)
Mare Tranquilitātis (alternative)
mare Tranquilitātis (alternative)

mare + tranquillitātis. From Mare Tranquilitatis (spelled with one L). Coined by Italian Jesuit astronomer Giovanni Battista Riccioli, by labelling a map created by Italian Jesuit optician Francesco Maria Grimaldi, and then published in 1651 in the Almagestum Novum.

Sea of Tranquility
Sea of Tranquility#English

(planetology) Sea of Tranquility (a basin in Nearside, Moon, Earth, Solar System)


Oceanus procellarum

Ōceanus procellārum m sg (genitive Ōceanī procellārum); second declension

Ōceanus procellārum (canonical masculine singular)
Ōceanī procellārum (genitive)
Ōceanus Procellārum (alternative)
ōceanus Procellārum (alternative)

ōceanus + procellārum. From Ōceanus Procellārum. Coined by Italian Jesuit astronomer Giovanni Battista Riccioli, by labelling a map created by Italian Jesuit optician Francesco Maria Grimaldi, and then published in 1651 in the Almagestum novum.

(planetology) The Ocean of Storms (“Oceanus Procellarum”): a basin in Nearside, Moon, Earth, Solar System.

en:Almagestum novum
en:Francesco Maria Grimaldi
en:Giovanni Battista Riccioli


Mare procellarum

Mare procellārum n sg (genitive Maris procellārum); third declension

Mare procellārum (canonical neuter singular)
Maris procellārum (genitive)
Mare Procellārum (alternative)
mare Procellārum (alternative)

Blend of mare + Ōceanus procellārum. Variation of Ōceanus procellārum; replacement of the rare "ōceanus" with the common "mare", where many features on the Moon are called the 'mare' (the maria), and only this one feature is called 'ōceanus'.

Mare Procellarum
Mare Procellarum#Translingual

Ōceanus procellārum
Oceanus procellarum#Latin

(planetology) The Sea of Storms (“Mare Procellarum”): synonym of Ōceanus procellārum; a basin in Nearside, Moon, Earth, Solar System


ALH

(planetology, geology) abbreviation of Allan Hills


LEW

(planetology, geology) abbreviation of Lewis Cliff


LAP

(planetology, geology) abbreviation of LaPaz Icefield


Facula

(planetology) An albedo surface feature, lighter than the surroundings.


hycean

With densities between those of rocky super-Earths and more extended mini-Neptunes, Hycean planets can be optimal candidates in the search for exoplanetary habitability and may be abundant in the exoplanet population.

2021 August, Nikku Madhusudhan, Anjali A. A. Piette, Savvas Constantinou, “Habitability and Biosignatures of Hycean Worlds”, in Astrophysical Journal:

It's thought that the new classification could accelerate the search for life outside our Solar System for one simple reason: planets that fulfil the criteria to be "Hycean" already dominate the known exoplanet population, which is approaching 4,500.

2021 August 25, Jamie Carter, “Is Alien Life Hiding In Plain Sight? New Class Of 'Hycean' Planet Is Where We Should Look, Say Scientists”, in Forbes:

And learning more about Hycean planets could help scientists find biosignatures, or signs of life, outside of our solar system in the near future.

These hydrogen-rich ocean worlds, or hycean worlds, may be habitable.

2021 September 2, Joshua Colwell, Adrienne Dove, James Cooney, “Hycean Worlds and Nudging Asteroids”, in Walkabout the Galaxy:

TOI-2136b is a sub-Neptune transiting a nearby and bright star (J=10.8) and is a potential hycean planet, making it an excellent target for atmospheric studies to understand the formation, evolution, and habitability of the small planets.

2022 February 21, K KawauchiF MurgasE PalleN NaritaA Fukuiet al., “Validation and atmospheric exploration of the sub-Neptune TOI-2136b around a nearby M3 dwarf”, in arXiv.org, →DOI:

While LTT 1445 Ab is not in the traditional habitable zone of its star (Winters et al. 2019), it is considered as a candidate Hycean world where a liquid ocean may exist underneath a H₂-dominated atmosphere.

2022 September 26, Caprice Phillips, Ji Wang, Billy Edwards, Romy Rodriguez Martinez, Anusha Pai Asnodkar, B. Scott Gaudi, “Is LTT 1445 Ab a Hycean World or a cold Haber World? Exploring the Potential of Twinkle to Unveil Its Nature”, in arXiv, →DOI:

(astronomy, planetology, of a planet, neologism) Having a water-based ocean that covers the entire planet, and an atmosphere rich in hydrogen.


jovicline

From Jove + -cline. From Latin Jovi (“Jupiter”) (Iove, Iuppiter) + clino (“incline”) (gradient). Coined in reference to thermocline and halocline.

(planetology, radio astronomy, astrometeorology) The separation between two different depth layers of the planet Jupiter, where the microwave emission characteristics of the bands (light stripes) and belts (dark stripes) are reversed. Bands have low levels of microwave emissions compared to belts at the surface, while below the jovicline, they have higher emissions comparatively.


cryovulkaan

Calque of English cryovolcano, equivalent to cryo- + vulkaan.

(planetology, geology, volcanology) a volcano on an icy moon or asteroid that ejects volatile materials rather than magma; a cryovolcano


cryovulkanisme

nl-noun

cryovulkanisme m (plural cryovulkanismen)

Calque of English cryovolcanism, equivalent to cryo- + vulkanisme.

(volcanology, planetology, geology) the activity, and associated phenomena, of a cryovolcano – a volcano that ejects volatile materials rather than magma; cryovolcanism


Piccard Mons

Named after Swiss scientist Auguste Piccard.

(planetology) A possible extinct cryovolcano on the planet Pluto.


Wright Mons

Named after American aviation pioneers Wilbur and Orville Wright.

(planetology) A possible extinct volcano on the planet Pluto.

Orville Wright
Wilbur Wright
Wright Mons


cryolava

en-noun

cryolava (countable and uncountable, plural cryolavas)

(planetology, geology, volcanology) Ice-volcanic melt which has erupted from a cryovolcano.


靜海

/t͡ɕiŋ⁵¹ xaɪ̯²¹⁴⁻²¹⁽⁴⁾/

/t͡sɪŋ²² hɔːi̯³⁵/

/t͡ɕiŋ⁵¹ xaɪ̯²¹⁴⁻²¹⁽⁴⁾/

/t͡sɪŋ²² hɔːi̯³⁵/


methanosphere

(planetology) The methane-based analogue of an H₂O water-based hydrosphere; a methane hydrosphere.


冰火山

/piŋ⁵⁵ xu̯ɔ²¹⁴⁻²¹ ʂän⁵⁵/

/pɪŋ⁵⁵ fɔː³⁵ saːn⁵⁵/

/piŋ⁵⁵ xu̯ɔ²¹⁴⁻²¹ ʂän⁵⁵/

/pɪŋ⁵⁵ fɔː³⁵ saːn⁵⁵/

(planetology, geology, volcanology) cryovolcano (a volcano on an icy moon that ejects volatile materials rather than magma)


apoareon

(planetology) Alternative form of apoareion.


periareon

(planetology) Alternative form of periareion.


Jeans escape

Jeans escape (countable and uncountable, plural Jeans escapes)

Named after English physicist Sir James Jeans (1877–1946), who is credited with calculating the rate of such atmospheric escape.

2014, Eugene F. Milone, William J. F. Wilson, Solar System Astrophysics, Springer, 2nd Edition, page 413,
As will be seem in Sects. 11.7.2.3 and 11.7.3.2, Jeans escape of H atoms from Venus is negligible compared to other, nonthermal mechanisms, whereas Jeans escape dominates the loss of H from Mars. On both planets, Jeans escape of O, O₂ and CO₂ is negligible.

where a≡m/2k_BT, n is the number density of particles and v is the magnitude of the velocity.

2017, Kevin Heng, Exoplanetary Atmospheres, Princeton University Press, page 213, The simplest model of Jeans escape [112], a mechanism named after the Englishman James H. Jeans, assumes that the constituent particles of the atmosphere may be described by a Maxwell-Boltzmann distribution, f_M=(a/π)ne, (13.6)

2021, Mark H. Thiemens, Mang Lin, 2: Discoveries of Mass Independent Isotope Effects in the Solar System, Ilya N. Bindeman, Andreas Pack (editors), Reviews in Mineralogy and Geochemistry, Volume 86: Triple Oxygen Isotope Geochemistry, Mineralogical Society of America, page 70,
The hydrogen is lost from the system by diffusion and Jeans escapes.

(planetology, astrophysics) A type of atmospheric escape in which a light gas atom or molecule (typically a helium atom or hydrogen molecule) gains sufficient momentum through collision with other molecules to escape the atmosphere (and gravitational pull) of a planet.


冰岩漿

/piŋ⁵⁵ jɛn³⁵ t͡ɕi̯ɑŋ⁵⁵/

/piŋ⁵⁵ jɛn³⁵ t͡ɕi̯ɑŋ⁵⁵/

(planetology, geology, volcanology) cryomagma (collectively, substances such as water, ammonia or methane that are found within some planets and are expelled by cryovolcanoes)


冰熔岩

ㄅㄧㄥ ㄖㄨㄥˊ ㄧㄢˊ

ㄅㄧㄥ ㄖㄨㄥˊ ㄧㄢˊ

/piŋ⁵⁵ ʐʊŋ³⁵ jɛn³⁵/

/piŋ⁵⁵ ʐʊŋ³⁵ jɛn³⁵/

(planetology, geology, volcanology) cryolava (ice-volcanic melt which has erupted from a cryovolcano)


Sea of Moscow

A calque of translingual Mare Muscoviensis (literally “Muscovian Sea”), from New Latin Mare Muscoviensis, from Latin mare (“sea”) + Latin Muscoviensis (“Muscovian, of Muscovy”)

affix

(planetology) A basin in the Moon, orbiting the Earth, in the Solar System.


बहिर्ग्रह

bahirgrah (romanization)
बहिर्ग्रह (direct singular)
बहिर्ग्रह (direct plural)
बहिर्ग्रह (oblique singular)
बहिर्ग्रहों (oblique plural)
बहिर्ग्रह (singular vocative)
बहिर्ग्रहो (plural vocative)

/bə.ɦɪɾ.ɡɾəɦ/

[bɐ.ɦɪɾ.ɡɾɛʱ]

Sanskritic karmadhāraya compound of बहिः (bahiḥ, “outer”) + ग्रह (grah, “planet”).

sa-com

hi:बहिर्ग्रह