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
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arXiv
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| Autori principali: | , , , , , , , , , , , , , , , , , |
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| Natura: | Preprint |
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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 |