He is found at a keen angular range regarding 177 arc seconds out-of Regulus Good. He or she is dimmer head series superstars that have a noticeable magnitude away from 8.14 and you can 13.5. Regulus B try a good K2V celebrity additionally the companion is assumed as a purple dwarf of one’s spectral types of M4V. The two celebrities is split by the from the 100 substantial units and you will has an enthusiastic orbital chronilogical age of 2,000 years.
An important superstar of Regulus Good was an earlier superstar, only a few million years old, and contains 3.five times the newest bulk of one’s Sunshine. The fresh star try an especially prompt rotator, which have an effective rotation chronilogical age of simply 15.nine instances. This is why, it has got an oblate shape. When it was indeed rotating 16% quicker, new centripetal push provided with new star’s the law of gravity would not be enough to secure the star along with her.
Leader Leonis is the closest vibrant superstar to the ecliptic. For this reason, it is on a regular basis occulted from the Moon and you will, hardly, of the Mercury and Venus.
In the northern hemisphere, Regulus is the better found in the evening from the later winter and you can springtime. The sole time of the year if superstar can’t be seen is actually for thirty days on each side of August twenty two, in the event it lies too around the Sunlight.
This new star’s identity, Regulus, mode “absolutely nothing king” otherwise “prince” into the Latin. The latest star’s Greek title, Basiliscos, encountered the exact same meaning. The brand new Arabic name toward celebrity is actually Qalb al-Asad, which means that “the heart of lion.”
Denebola – ? Leonis (Beta Leonis)
Denebola ‘s the next smartest celebrity in the Leo and also the 61st brightest superstar on the sky.Leggi tutto