[permalink] [id link]
id: Beta Crucis
from
Wikipedia
Some Related Sentences
id and Beta
; < span id =" beta "> Beta </ span >: Advice on how to successfully complete ( or protect ) a particular climbing route, boulder problem, or crux sequence.
; < span id =" beta_flash "> Beta flash </ span >: The clean ascent of a climb on the first attempt, having previously obtained beta or while having beta shouted up from the ground en route.
TeamTNT originally formed as a two-group entity: the Alpha group whose concerns centered primarily on level design and mod work employing pre-existing Doom II resources as developed by the original id software team, and the Beta group who would be focused more closely on partial and total conversions including sprite changes.
The Beta team dissolved shortly after the official formation of The TeamTNT Trust, the legal entity which dealt with id software during negotiations concerning Final Doom.
id and Crucis
Beta and Crucis
The southern celestial pole lies at the intersection of ( a ) the line along the long axis of crux ( i. e. through Alpha Crucis and Gamma Crucis ) and ( b ) a line perpendicularly bisecting the line joining the " Pointers " ( Alpha Centauri and Beta Centauri ).
Beta Crucis, also known as Mimosa or Becrux, is the second brightest star in the constellation Crux ( after Alpha Crucis or Acrux ) and is the 19th brightest star in the night sky.
Although Beta Crucis, " Becrux ", is at roughly − 60 ° declination, and therefore not visible north of 30 °, in the time of the ancient Greeks and Romans it was visible north of 40 ° due to the precession of equinoxes, and these civilizations regarded it as part of the constellation Centaurus.
Beta Crucis is believed to be the hottest first-magnitude star, with an apparent visual magnitude of 1. 25.
Beta Crucis A is a known Beta Cephei variable, although with an effective temperature of about 27, 000 K it is at the high end of the instability strip where such stars are found.
The Beta Crucis system may be a member of the Lower Centaurus-Crux sub-group of the Scorpius-Centaurus Association.
Thus Beta Crucis appears to the right of the constellation and Delta Crucis to the left, in mirror image of the way they actually appear in the sky ( and, coincidentally, the way they appear on the Brazilian coat of arms ).
The cluster looks like a star to the unaided eye and appears close to the easternmost star of the Southern Cross, ( Beta Crucis ), so is only visible from southern latitudes.
The Jewel Box cluster can be easily located using the star Beta Crucis as a guide, and appears as a fourth magnitude object.
Delta Crucis is a strong candidate Beta Cephei variable and changes its brightness subtly with a period of 1. 3 hours.
0.820 seconds.