21 relations: Apparent magnitude, Carina–Sagittarius Arm, Edmond Halley, Giovanni Battista Hodierna, HD 151932, Jean-Philippe de Chéseaux, Light-year, Milky Way, Mu Scorpii, New General Catalogue, Nicolas-Louis de Lacaille, Open cluster, Palermo, Prawn Nebula, Scorpius, Solar System, Stellar classification, Wolf–Rayet star, Zeta Scorpii, Zeta1 Scorpii, Zeta2 Scorpii.
The apparent magnitude of a celestial object is a number that is a measure of its brightness as seen by an observer on Earth.
The Carina–Sagittarius Arm (also known as Sagittarius Arm or Sagittarius–Carina Arm, labeled -I) is generally thought to be a minor spiral arm of the Milky Way galaxy.
Edmond (or Edmund) Halley, FRS (–) was an English astronomer, geophysicist, mathematician, meteorologist, and physicist.
Giovanni Battista Hodierna, also spelled as Odierna (April 13, 1597 – April 6, 1660) was an Italian astronomer at the court of Giulio Tomasi, Duke of Palma (Palma di Montechiaro).
HD 151932, also known as WR 78, is a Wolf-Rayet star located in the constellation Scorpius, close to the galactic plane.
Jean-Philippe Loys de Chéseaux (May 4, 1718 in Lausanne – November 30, 1751) was an astronomer from Lausanne in Switzerland.
The light-year is a unit of length used to express astronomical distances and measures about 9.5 trillion kilometres or 5.9 trillion miles.
The Milky Way is the galaxy that contains our Solar System.
The Bayer designation Mu Scorpii (μ Sco, μ Scorpii) is shared by two star systems, in the constellation Scorpius.
The New General Catalogue of Nebulae and Clusters of Stars (abbreviated as NGC) is a catalogue of deep-sky objects compiled by John Louis Emil Dreyer in 1888.
Abbé Nicolas-Louis de Lacaille, formerly sometimes spelled de la Caille, (15 March 1713 – 21 March 1762) was a French astronomer.
An open cluster is a group of up to a few thousand stars that were formed from the same giant molecular cloud and have roughly the same age.
Palermo (Sicilian: Palermu, Panormus, from Πάνορμος, Panormos) is a city of Southern Italy, the capital of both the autonomous region of Sicily and the Metropolitan City of Palermo.
Prawn Nebula, IC 4628, is an emission nebula located in the Sagittarius Arm of the Milky Way, around 6000 light-years from Earth in the constellation Scorpius.
Scorpius is one of the constellations of the zodiac.
The Solar SystemCapitalization of the name varies.
In astronomy, stellar classification is the classification of stars based on their spectral characteristics.
Wolf–Rayet stars, often abbreviated as WR stars, are a rare heterogeneous set of stars with unusual spectra showing prominent broad emission lines of highly ionised helium and nitrogen or carbon.
The Bayer designation Zeta Scorpii (ζ Sco, ζ Scorpii) is shared by two stars in the constellation Scorpius.
Zeta1 Scorpii (Zeta1 Sco, ζ1 Scorpii, ζ1 Sco) is a B-type hypergiant star in the constellation of Scorpius.
Zeta2 Scorpii (Zeta2 Sco, ζ2 Scorpii, ζ2 Sco) is a K-type orange giant star in the constellation of Scorpius.