Results 31 to 40 of about 129,106 (151)

CCD photometry of the Uranian satellites

The Astronomical Journal, 1992
Broadband V and R CCD observations of the Uranian satellite system have been obtained over the full range of solar phase angles observable from earth. These first visual observations of the phase curves of Miranda, Ariel, and Umbriel show that Ariel and Miranda exhibit the large opposition surges previously seen on the two outer Uranian Satellites ...
Bonnie J. Buratti, James Gibson, Joel A. Mosher   +2 more
openaire   +1 more source

The Case for a New Frontiers–Class Uranus Orbiter: System Science at an Underexplored and Unique World with a Mid-scale Mission

The Planetary Science Journal, 2022
Current knowledge of the Uranian system is limited to observations from the flyby of Voyager 2 and limited remote observations. However, Uranus remains a highly compelling scientific target due to the unique properties of many aspects of the planet ...
Ian J. Cohen, Chloe Beddingfield, Robert Chancia, Gina DiBraccio, Matthew Hedman, Shannon MacKenzie, Barry Mauk, Kunio M. Sayanagi, Krista M. Soderlund, Elizabeth Turtle, Caitlin Ahrens, Christopher S. Arridge, Shawn M. Brooks, Emma Bunce, Sebastien Charnoz, Athena Coustenis, Robert A. Dillman, Soumyo Dutta, Leigh N. Fletcher, Rebecca Harbison, Ravit Helled, Richard Holme, Lauren Jozwiak, Yasumasa Kasaba, Peter Kollmann, Statia Luszcz-Cook, Kathleen Mandt, Olivier Mousis, Alessandro Mura, Go Murakami, Marzia Parisi, Abigail Rymer, Sabine Stanley, Katrin Stephan, Ronald J. Vervack, Jr., Michael H. Wong, Peter Wurz   +36 more
doaj   +1 more source

Feasibility of a Galileo-Style Tour of the Uranian Satellites [PDF]

Journal of Spacecraft and Rockets, 2003
Gravity-assist trajectories have been a key to outer solar system exploration. In particular, the gravity-assist tour of the Jovian satellites has contributed significantly to the success of the Galileo mission. A comparison of the Jovian system to the Uranian system reveals that the two possess similar satellite/planet mass ratios. Tisserand graphs of
Andrew F. Heaton, James M. Longuski
openaire   +1 more source

Photometry of the Uranian Satellites with Keck and the Search for Mab [PDF]

The Astronomical Journal, 2019
Abstract We present photometric properties of six small (radii <100 km) satellites of Uranus based on 32 H-band (1.49–1.78μm) images taken on 2015 August 29 from the Keck II Telescope on Maunakea, Hawaii with the near-infrared camera NIRC2 coupled to the adaptive optics system.
Samuel Paradis, Chris Moeckel, Joshua Tollefson, Imke de Pater   +3 more
openaire   +2 more sources

The Orbits of Uranus, Its Satellites and Rings, the Gravity Field of the Uranian System, and the Orientation of the Poles of Uranus and Its Satellites

The Astronomical Journal
R. A. Jacobson determined the orbits of the Uranian satellites, the masses of Uranus and its satellites, and the orientation of the pole of Uranus from Earth-based astrometry, Earth-based ring occultations, and observations acquired with the Voyager 2 ...
Robert A. Jacobson, Ryan S. Park
doaj   +1 more source

Peaking Into Oberon's Past: An Isolated Peak Could Imply the Existence of a Subsurface Ocean or Convecting Ice Shell

Journal of Geophysical Research: Planets, Volume 131, Issue 8, August 2026.
Abstract The Uranian moons, last visited in 1986 by Voyager 2, remain an intriguing yet under‐explored set of targets. Understanding the thermal structure and evolution of these moons is key to addressing one of the highest priority goals in planetary science: identifying if any are ocean worlds today or have been in the past. On Oberon, one feature in
M. Blanco‐Rojas, M. M. Sori, I. F. Pamerleau   +2 more
wiley   +1 more source

Feasibility of Passive Sounding of Uranian Moons Using Uranian Kilometric Radiation

Earth and Space Science
We present a feasibility study for passive sounding of Uranian icy moons using Uranian Kilometric Radio (UKR) emissions in the 100–900 kHz band. We provide a summary description of the observation geometry, the UKR characteristics, and estimate the ...
A. Romero‐Wolf, G. Steinbrügge, J. Castillo‐Rogez, C. J. Cochrane, T. A. Nordheim, K. L. Mitchell, N. S. Wolfenbarger, D. M. Schroeder, S. Peters   +8 more
doaj   +1 more source

Three Dynamical Evolution Regimes for Coupled Ring-satellite Systems and Implications for the Formation of the Uranian Satellite Miranda

The Astronomical Journal, 2019
In coupled ring-satellite systems, satellites exchange angular momentum with both the primary through tides and the ring through Lindblad torques, and may exchange material with the ring through accretion and tidal disruption.
Andrew J. Hesselbrock, David A. Minton
doaj   +1 more source

Highly Asymmetric Magnetosphere‐Ionosphere‐Thermosphere Coupling at Uranus

Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract Magnetosphere‐Ionosphere‐Thermosphere (MIT) coupling is widely considered the dominant energy source responsible for maintaining the elevated thermospheric temperatures observed at the giant planets. At Uranus, the strongly tilted and asymmetric magnetic field produces a highly asymmetric magnetospheric configuration that may fundamentally ...
M. Acevski, N. Achilleos, A. Masters, C. Smith, P. I. Tiranti   +4 more
wiley   +1 more source

On the Detection of Low‐Frequency Planetary Radio Emission With an Orbiting Interferometer

Radio Science, Volume 61, Issue 6, June 2026.
Abstract The magnetized planets of the outer Solar System produce kilometric radio emissions at very low frequencies (<1 ${< } 1\,$MHz). They reveal the planetary magnetic dynamics and their interaction with the solar wind. Those radio emissions can also serve as a proxy for interplanetary space weather monitoring.
E. Rouillé, B. Cecconi, B. Segret, J. N. Girard, A. Loh   +4 more
wiley   +1 more source