R band - definition. What is R band
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%ما هو (من)٪ 1 - تعريف

SET OF WELL-DEFINED PASSBANDS (OR FILTERS), WITH A KNOWN SENSITIVITY TO INCIDENT RADIATION
JHK; Jhk; R band

Photometric system         
In astronomy, a photometric system is a set of well-defined passbands (or optical filters), with a known sensitivity to incident radiation. The sensitivity usually depends on the optical system, detectors and filters used.
Big band         
  • [[HONK!]] 2022 performers in [[Somerville, Massachusetts]], U.S.
  • Typical seating arrangement for a 17-piece big band
  • Oak Harbor High School]].
MUSIC ENSEMBLE ASSOCIATED WITH JAZZ AND SWING ERA MUSIC
Big Band; Big band music; Jazz orchestra; Big bands; Big-band; Big Band music; Bigband; Big-band jazz; Big Band Jazz; Experimental Big Band; Big Band Era; Big band jazz
A big band or jazz orchestra is a type of musical ensemble of jazz music that usually consists of ten or more musicians with four sections: saxophones, trumpets, trombones, and a rhythm section. Big bands originated during the early 1910s and dominated jazz in the early 1940s when swing was most popular.
big band         
  • [[HONK!]] 2022 performers in [[Somerville, Massachusetts]], U.S.
  • Typical seating arrangement for a 17-piece big band
  • Oak Harbor High School]].
MUSIC ENSEMBLE ASSOCIATED WITH JAZZ AND SWING ERA MUSIC
Big Band; Big band music; Jazz orchestra; Big bands; Big-band; Big Band music; Bigband; Big-band jazz; Big Band Jazz; Experimental Big Band; Big Band Era; Big band jazz
¦ noun a large group of musicians playing jazz or swing music.

ويكيبيديا

Photometric system

In astronomy, a photometric system is a set of well-defined passbands (or optical filters), with a known sensitivity to incident radiation. The sensitivity usually depends on the optical system, detectors and filters used. For each photometric system a set of primary standard stars is provided.

A commonly adopted standardized photometric system is the Johnson-Morgan or UBV photometric system (1953). At present, there are more than 200 photometric systems.

Photometric systems are usually characterized according to the widths of their passbands:

  • broadband (passbands wider than 30 nm, of which the most widely used is Johnson-Morgan UBV system)
  • intermediate band (passbands between 10 and 30 nm wide)
  • narrow band (passbands less than 10 nm wide)