Gamma Sagittarii
Encyclopedia
Gamma Sagittarii is a 3rd-magnitude
star
in the constellation
Sagittarius
.
It was temporarily referred to Gamma-2 Sagittarii (γ2 Sgr). The Bayer designation
"Gamma Sagittarii" was temporarily shared by two star system
s in this constellation, γ1 Sagittarii
and γ2 Sagittarii. They are separated by 0.86° on the sky, and can be resolved by the naked eye
.
It has the proper names Alnasl (Nasl, El Nasl) and Nushaba (Nash). Alnasl is derived from the Arabic النصل al-naşl meaning "arrowhead". Nushaba is derived from the Arabic Zujj al-Nashshaba meaning same as Alnasl.
Gamma Sagittarii is a K type giant
, and approximately 95 light years
from the Earth
.
Magnitude (astronomy)
Magnitude is the logarithmic measure of the brightness of an object, in astronomy, measured in a specific wavelength or passband, usually in optical or near-infrared wavelengths.-Background:...
star
Star
A star is a massive, luminous sphere of plasma held together by gravity. At the end of its lifetime, a star can also contain a proportion of degenerate matter. The nearest star to Earth is the Sun, which is the source of most of the energy on Earth...
in the constellation
Constellation
In modern astronomy, a constellation is an internationally defined area of the celestial sphere. These areas are grouped around asterisms, patterns formed by prominent stars within apparent proximity to one another on Earth's night sky....
Sagittarius
Sagittarius (constellation)
Sagittarius is a constellation of the zodiac, the one containing the galactic center. Its name is Latin for the archer, and its symbol is , a stylized arrow. Sagittarius is commonly represented as a centaur drawing a bow...
.
It was temporarily referred to Gamma-2 Sagittarii (γ2 Sgr). The Bayer designation
Bayer designation
A Bayer designation is a stellar designation in which a specific star is identified by a Greek letter, followed by the genitive form of its parent constellation's Latin name...
"Gamma Sagittarii" was temporarily shared by two star system
Star system
A star system or stellar system is a small number of stars which orbit each other, bound by gravitational attraction. A large number of stars bound by gravitation is generally called a star cluster or galaxy, although, broadly speaking, they are also star systems.-Binary star systems:A stellar...
s in this constellation, γ1 Sagittarii
W Sagittarii
W Sagittarii is a cepheid variable star in the constellation Sagittarius. It was temporary referred to Gamma-1 Sagittarii...
and γ2 Sagittarii. They are separated by 0.86° on the sky, and can be resolved by the naked eye
Human eye
The human eye is an organ which reacts to light for several purposes. As a conscious sense organ, the eye allows vision. Rod and cone cells in the retina allow conscious light perception and vision including color differentiation and the perception of depth...
.
It has the proper names Alnasl (Nasl, El Nasl) and Nushaba (Nash). Alnasl is derived from the Arabic النصل al-naşl meaning "arrowhead". Nushaba is derived from the Arabic Zujj al-Nashshaba meaning same as Alnasl.
Gamma Sagittarii is a K type giant
Giant star
A giant star is a star with substantially larger radius and luminosity than a main sequence star of the same surface temperature. Typically, giant stars have radii between 10 and 100 solar radii and luminosities between 10 and 1,000 times that of the Sun. Stars still more luminous than giants are...
, and approximately 95 light years
Light Years
Light Years is the seventh studio album by Australian recording artist Kylie Minogue. It was released on 25 September 2000 by Parlophone and Mushroom Records. The album's style was indicative of her return to "mainstream pop dance tunes"....
from the Earth
Earth
Earth is the third planet from the Sun, and the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets...
.