here contains only named Martian craters starting with the letter O – Z (see also lists for A – G and H – N). Large Martian craters (greater than 60 kilometers...

(lunar crater) Secchi (Martian crater) Secchi depth, a measure of turbidity Secchi disk, an instrument used to measure turbidity SECCHI (Sun Earth Connection...

projection lenses. The lunar crater Secchi and the Martian crater Secchi are both named after him, as is a main belt asteroid, 4705 Secchi. The two STEREO (Solar...

Magnetic field of Mars Mars Geyser Hopper Martian craters Martian dichotomy Martian geyser Martian gullies Martian soil Mineralogy of Mars Ore resources on...

first person to use the word canale in connection with Mars was Angelo Secchi in 1858, although he did not see any straight lines and applied the term...

using a Secchi disk, a 20-cm (8 in) disk with alternating white and black quadrants. The depth at which the disk is no longer visible is the Secchi depth...

Observatory during the opposition of Mars in 1858, Italian astronomer Angelo Secchi noticed a large blue triangular feature, which he named the "Blue Scorpion"...

been given different names by different cartographers. In 1850s, Angelo Secchi called the feature Atlantic Canale (later he called it Scorpion and Cook...

program Impact crater Latitude dependent mantle Lakes on Mars Lineated valley fill List of quadrangles on Mars Lobate debris apron Martian Gullies Ore resources...

indicate that water penetration tends to be between two and three times Secchi depth. Bathymetric lidar is most useful in the 0–10 m (0–33 ft) depth range...

signature of the Sun and comparing it to those of other stars, Father Angelo Secchi determines that the Sun is itself a star. 1866 – Giovanni Schiaparelli realizes...

the outer shell of the corresponding parent star. Already in 1860 Angelo Secchi identified carbon stars as a separate class of stars. Carbon stars are characterized...