Secchi
Encyclopedia
Secchi may refer to:
- Angelo SecchiAngelo Secchi-External links:...
, an Italian astronomer - Secchi (lunar crater)Secchi (lunar crater)Secchi is a small lunar crater formation on the northwest edge of Mare Fecunditatis. To the northeast is the crater Taruntius. The western rim is joined with a section of the minor Montes Secchi range. The rim of this crater has been opened in the northern and southern ends, leaving two curved...
- Secchi (crater on Mars)
- Secchi depth, a measure of turbidityTurbidityTurbidity is the cloudiness or haziness of a fluid caused by individual particles that are generally invisible to the naked eye, similar to smoke in air. The measurement of turbidity is a key test of water quality....
- Secchi diskSecchi diskThe Secchi disk, created in 1865 by Pietro Angelo Secchi SJ, is a circular disk used to measure water transparency in oceans and lakes. The disc is mounted on a pole or line, and lowered slowly down in the water. The depth at which the pattern on the disk is no longer visible is taken as a measure...
, an instrument used to measure turbidity - SECCHI (Sun Earth Connection Coronal and Heliospheric Investigation), an instrument package on each of the STEREOSTEREOSTEREO is a solar observation mission. Two nearly identical spacecraft were launched into orbits that cause them to respectively pull farther ahead of and fall gradually behind the Earth...
spacecraft