Why the Northern Hemisphere Needs a 30-40 m Telescope and the Science at Stake: Key Targets of Opportunity on Gas and Ice Giants and their satellites

Fuente: arXiv
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Autori principali: Hueso, Ricardo, Fletcher, Leigh N., Souami, Damya, Fouchet, Thierry, Guillot, Tristan, Mousis, Olivier, Irwin, Patrick G. J., Roman, Michael, Antuñano, Arrate, Coustenis, Athena, de León, Julia, Fornasier, Sonia, Lellouch, Emmanuel, Lucchetti, Alice, Pinilla-Alonso, Noemí, Pollacco, Don, Sánchez-Lavega, Agustín, Toledo, Daniel
Natura: Preprint
Pubblicazione: 2025
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author Hueso, Ricardo
Fletcher, Leigh N.
Souami, Damya
Fouchet, Thierry
Guillot, Tristan
Mousis, Olivier
Irwin, Patrick G. J.
Roman, Michael
Antuñano, Arrate
Coustenis, Athena
de León, Julia
Fornasier, Sonia
Lellouch, Emmanuel
Lucchetti, Alice
Pinilla-Alonso, Noemí
Pollacco, Don
Sánchez-Lavega, Agustín
Toledo, Daniel
author_facet Hueso, Ricardo
Fletcher, Leigh N.
Souami, Damya
Fouchet, Thierry
Guillot, Tristan
Mousis, Olivier
Irwin, Patrick G. J.
Roman, Michael
Antuñano, Arrate
Coustenis, Athena
de León, Julia
Fornasier, Sonia
Lellouch, Emmanuel
Lucchetti, Alice
Pinilla-Alonso, Noemí
Pollacco, Don
Sánchez-Lavega, Agustín
Toledo, Daniel
contents The Extremely Large Telescope (ELT) will transform our knowledge of the outer planets and their satellite systems; however the visibility of unique targets of opportunity with high scientific value will be reduced for northern objects. Uranus' declination favors observations from the Northern Hemisphere until 2055, and Neptune will be favored from the Northern Hemisphere from 2027 for the next 90 years. Jupiter and Saturn experience cycles of better observability from either hemisphere on cycles of 10 and 30 years. These planets and their satellite systems often offer unique opportunities for discovery through time-critical observations. We argue that a 30-m class size telescope in the Northern Hemisphere with complementary scientific instrumentation to that on the ELT will secure the possibility of observing high-impact unpredictable phenomena in these systems.
format Preprint
id arxiv_https___arxiv_org_abs_2512_14791
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Why the Northern Hemisphere Needs a 30-40 m Telescope and the Science at Stake: Key Targets of Opportunity on Gas and Ice Giants and their satellites
Hueso, Ricardo
Fletcher, Leigh N.
Souami, Damya
Fouchet, Thierry
Guillot, Tristan
Mousis, Olivier
Irwin, Patrick G. J.
Roman, Michael
Antuñano, Arrate
Coustenis, Athena
de León, Julia
Fornasier, Sonia
Lellouch, Emmanuel
Lucchetti, Alice
Pinilla-Alonso, Noemí
Pollacco, Don
Sánchez-Lavega, Agustín
Toledo, Daniel
Instrumentation and Methods for Astrophysics
Earth and Planetary Astrophysics
The Extremely Large Telescope (ELT) will transform our knowledge of the outer planets and their satellite systems; however the visibility of unique targets of opportunity with high scientific value will be reduced for northern objects. Uranus' declination favors observations from the Northern Hemisphere until 2055, and Neptune will be favored from the Northern Hemisphere from 2027 for the next 90 years. Jupiter and Saturn experience cycles of better observability from either hemisphere on cycles of 10 and 30 years. These planets and their satellite systems often offer unique opportunities for discovery through time-critical observations. We argue that a 30-m class size telescope in the Northern Hemisphere with complementary scientific instrumentation to that on the ELT will secure the possibility of observing high-impact unpredictable phenomena in these systems.
title Why the Northern Hemisphere Needs a 30-40 m Telescope and the Science at Stake: Key Targets of Opportunity on Gas and Ice Giants and their satellites
topic Instrumentation and Methods for Astrophysics
Earth and Planetary Astrophysics
url https://arxiv.org/abs/2512.14791