Search results
Results from the WOW.Com Content Network
A Martian year is approximately 668.6 sols, equivalent to approximately 687 Earth days [1] or 1.88 Earth years. The sol was adopted in 1976 during the Viking Lander missions and is a measure of time mainly used by NASA when, for example, scheduling the use of a Mars rover .
Volume was measured in ngogn (equal to 1000 cubic potrzebies), mass in blintz (equal to the mass of 1 ngogn of halva, which is "a form of pie [with] a specific gravity of 3.1416 and a specific heat of .31416"), and time in seven named units (decimal powers of the average earth rotation, equal to 1 "clarke").
Summary of Mars mission clocks and sol counts Mission Ref. long. Clock offset Type Epoch (LT) Pathfinder (1997) 33.25°W AAT-02:13:01 LTST Sol 1 = MSD 43905 Spirit (2004) 165.01°E AMT+11:00:04 HLST Sol 1 = MSD 46216 Opportunity (2004) 15.28°W AMT-01:01:06 HLST Sol 1 = MSD 46236 Phoenix (2008) 126.65°W AMT-08:26:36 LMST Sol 0 = MSD 47776 ...
The first satellites designed for long term observation of the Sun from interplanetary space were NASA's Pioneers 6, 7, 8 and 9, which were launched between 1959 and 1968. These probes orbited the Sun at a distance similar to that of Earth, and made the first detailed measurements of the solar wind and the solar magnetic field.
Distance of the outer limit of Oort cloud from the Sun (estimated, corresponds to 1.2 light-years) — Parsec: 206 265 — One parsec. The parsec is defined in terms of the astronomical unit, is used to measure distances beyond the scope of the Solar System and is about 3.26 light-years: 1 pc = 1 au/tan(1″) [6] [61] Proxima Centauri: 268 000 ...
The aircraft, flown by Boom’s chief test pilot Tristan “Geppetto” Brandenburg, accelerated to Mach 1.1 for the first time (around 844 miles per hour / 1,358 kilometers per hour) — 10% ...
In astronomy, the rotation period or spin period [1] of a celestial object (e.g., star, planet, moon, asteroid) has two definitions. The first one corresponds to the sidereal rotation period (or sidereal day), i.e., the time that the object takes to complete a full rotation around its axis relative to the background stars (inertial space).
The Milky Way is approximately 890 billion to 1.54 trillion times the mass of the Sun in total (8.9 × 10 11 to 1.54 × 10 12 solar masses), [7] [8] [9] although stars and planets make up only a small part of this. Estimates of the mass of the Milky Way vary, depending upon the method and data used.