APS-C

Advanced Photo System type-C (APS-C) is an image sensor format approximately equivalent in size to the Advanced Photo System "classic" negatives of 25.1 × 16.7 mm, an aspect ratio of 3:2.

Sensors approximating these dimensions are used in many digital single-lens reflex cameras (DSLRs), Mirrorless interchangeable-lens cameras (DSLMs), and a few large-sensor live-preview digital cameras. These include the Sony DSC-R1, Sigma DP1 and Leica X1. APS-C size sensors are also used in a few digital rangefinders (e.g., the Epson R-D1).

Such sensors exist in many different variants depending on the manufacturer and camera model. All APS-C variants are considerably smaller than 35 mm standard film which measures 36×24 mm. Because of this, devices with APS-C sensors are known as "cropped frame". Sensor sizes range from 20.7×13.8 mm to 28.7×19.1 mm. Each variant results in a slightly different angle of view from lenses at the same focal length and overall a much narrower angle of view compared to 35 mm film. This is why each manufacturer offers a range of lenses designed for its format.

APS

APS or Aps or aps or similar may refer to:

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Abzu

The Abzu (Cuneiform: 𒍪 𒀊, ZU.AB; Sumerian: abzu; Akkadian: apsû, ) also called engur, (Cuneiform:𒇉, LAGAB×HAL; Sumerian: engur; Akkadian: engurru) literally, ab='ocean' zu='deep', was the name for the primeval sea below the void space of the underworld (Kur) and the earth (Ma) above. It may also refer to fresh water from underground aquifers that was given a religious fertilizing quality. Lakes, springs, rivers, wells, and other sources of fresh water were thought to draw their water from the abzu.

In Sumerian culture

In the city of Eridu, Enki's temple was known as E₂-abzu (house of the cosmic waters) and was located at the edge of a swamp, an abzu. Certain tanks of holy water in Babylonian and Assyrian temple courtyards were also called abzu (apsû). Typical in religious washing, these tanks were similar to Judaism's mikvot, the washing pools of Islamic mosques, or the baptismal font in Christian churches.

In Sumerian cosmology

The Sumerian god Enki (Ea in the Akkadian language) was believed to have lived in the abzu since before human beings were created. His wife Damgalnuna, his mother Nammu, his advisor Isimud and a variety of subservient creatures, such as the gatekeeper Lahmu, also lived in the abzu.

Kappa1 Apodis

Kappa¹ Apodis is the Bayer designation for a binary star system in the southern circumpolar constellation of Apus. Based upon parallax measurements, it is located roughly 1,200 light-years (370 parsecs) from Earth. The combined apparent visual magnitude of the system is 5.52, indicating that this is a faint, naked eye star that can be viewed in dark suburban skies.

This is a spectroscopic binary system with an orbital period of 0.6 days. The combined spectrum matches a stellar classification of B1npe. The 'e' suffix indicates that this is a Be star with emission lines in the spectrum. An 'n' means that the absorption lines in the spectrum are broadened from the Doppler effect as a result of rapid rotation. Finally, the 'p' shows some peculiarity in the spectrum. It is classified as a Gamma Cassiopeiae type variable star and its brightness varies from magnitude +5.43 to +5.61.

This is a runaway star with a peculiar velocity of 69.8 ± 4.7 km/s. Because it is a binary star system, it was most likely not turned into a runaway system as the result of a supernova explosion. A companion star is a 12th magnitude orange K-type subgiant located at an angular separation of 27 arcseconds.