Search results
Results from the WOW.Com Content Network
Geological map of Triton's encounter hemisphere. Triton's surface is among the most youthful in the Solar System, with an estimated average surface age of 10-100 million years old, with some regions likely being even younger. [14] Triton's surface is also unusually reflective, with a Bond albedo of 0.76.
Triton is the largest natural satellite of the planet Neptune. It is the only moon of Neptune massive enough to be rounded under its own gravity and hosts a thin, hazy atmosphere. Triton orbits Neptune in a retrograde orbit—revolving in the opposite direction to the parent planet's rotation—the only large moon in the Solar System to do so.
Geological map of Triton, with some major surface features labelled in the upper map. This is a list of named geological features on Triton. Catenae (crater chains)
Triton's atmosphere interacts with Neptune through Neptune's magnetosphere, with interactions complicated by Triton's retrograde orbit and Neptune's asymmetric magnetosphere. As neutral hydrogen and nitrogen escape from Triton's atmosphere, they form a large neutral cloud in orbit around Neptune called the Triton torus.
The World Digital Magnetic Anomaly Map (WDMAM) was first made available by the Commission for the Geological Map of the World in 2007. Compiled with data from governments and institutes, [1] the project was coordinated by the International Association of Geomagnetism and Aeronomy, and was presented by Mike Purucker of NASA and Colin Reeves of the Netherlands. [2]
With a local declination of 14°E, a true bearing (i.e. obtained from a map) of 54° is converted to a magnetic bearing (for use in the field) by subtracting declination: 54° – 14° = 40°. If the local declination was 14°W (−14°), it is again subtracted from the true bearing to obtain a magnetic bearing: 54°- (−14°) = 68°.
The magnetic field of permanent magnets can be quite complicated, especially near the magnet. The magnetic field of a small [note 6] straight magnet is proportional to the magnet's strength (called its magnetic dipole moment m). The equations are non-trivial and depend on the distance from the magnet and the orientation of the magnet.
Surface magnetic field of SU Aur (a young star of T Tauri type), reconstructed by means of Zeeman–Doppler Imaging. In astrophysics, Zeeman–Doppler imaging is a tomographic technique dedicated to the cartography of stellar magnetic fields, as well as surface brightness or spots and temperature distributions.