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The Boötes Void (/ b oʊ ˈ oʊ t iː z / boh-OH-teez) (colloquially referred to as the Great Nothing) [1] is an approximately spherical region of space found in the vicinity of the constellation Boötes, containing only 60 galaxies instead of the 2,000 that should be expected from an area this large, hence its name.
The star is of type K0 and is located 110 parsecs from Earth; it appears at a visual magnitude of 7.96. It is significantly larger than the Sun, with a mass of 1.61 M ☉ and a radius of 4.6 solar radii. Its one planet, discovered in 2011 by the radial velocity method, has a mass of 2.2 M J; its radius is as yet undetermined. HD 131496 b orbits ...
Epsilon Boötis (ε Boötis, abbreviated Epsilon Boo, ε Boo), officially named Izar (/ ˈ aɪ z ɑːr / EYE-zar), [16] is a binary star in the northern constellation of Boötes.The star system can be viewed with the unaided eye at night, but resolving the pair with a small telescope is challenging; an aperture of 76 mm (3.0 in) or greater is required.
Gamma Boötis, Latinised from γ Boötis, is a binary star [12] system in the northern constellation of Boötes the herdsman, forming the left shoulder of this asterism. [13] The primary component has the proper name Seginus / s ɪ ˈ dʒ aɪ n ə s / [citation needed], the traditional name of the Gamma Bootis system. [14]
Theta Boötis, Latinized from θ Boötis, is a star in the northern constellation of Boötes the herdsman, forming a corner of the upraised left hand of this asterism. [15] It has the traditional name Asellus Primus (/ ə ˈ s ɛ l ə s ˈ p r aɪ m ə s /; Latin for "first donkey colt") [15] and the Flamsteed designation 23 Boötis.
η Boötis (Latinised to Eta Boötis) is the binary pair's Bayer designation; η Boötis A and B those of its two components. The designations of the two constituents of the double pair as WDS J13547+1824A and B and those of A's components - Aa and Ab - derive from the convention used by the Washington Multiplicity Catalog (WMC) for multiple star systems, and adopted by the International ...
Spiritual Meaning of a Void of Course Moon In this realm, the moon travels "in the emptiness" as it does not cross aspect with any other celestial force. Everything becomes hazy; matters stand still.
The primary component is a white A-type main-sequence dwarf with a mean apparent magnitude of +4.75. It is classified as a Delta Scuti-type variable star and its brightness varies from magnitude +4.73 to +4.78 with a stable period of 38 minutes. [7] The companion, HD 234121, is a magnitude 7.3 main-sequence star belonging to spectral class K0V.