Regulus B and you may Regulus C express a common best motion

Regulus B and you may Regulus C express a common best motion

They are located at an angular distance away from 177 arch moments out-of Regulus A good. He or she is dimmer chief sequence superstars with an evident magnitude out-of 8.fourteen and you can thirteen.5. Regulus B is an excellent K2V superstar and also the partner is assumed become a red-colored dwarf of your spectral method of M4V. Both celebs are split up because of the throughout the a hundred astronomical products and you can provides an enthusiastic orbital age of dos,100000 ages.

The primary star out-of Regulus A great is a young celebrity, not all mil years old, and contains step 3.5 times the fresh new size of your own Sunshine. Brand new superstar try a really timely rotator, that have an effective rotation period of merely fifteen.9 era. Because of this, it’s got a keen oblate shape. Whether it were spinning sixteen% faster, brand new centripetal force provided with the latest star’s the law of gravity would not be sufficient to secure the celebrity together.

Alpha Leonis is the closest bright celebrity into the ecliptic. Therefore, it is regularly occulted by the Moonlight and you may, hardly, by Mercury and you will Venus.

On the north hemisphere, Regulus is the best found in the night from the later winter and spring. The sole time of year if the star cannot be viewed is actually for 1 month into both sides out of August 22, whether it lays as well near the Sunshine.

The new star’s label, Regulus, means “absolutely nothing king” otherwise “prince” in the Latin. This new star’s Greek label, Basiliscos, encountered the exact same definition. This new Arabic identity towards star was Qalb al-Asad, which means that “one’s heart of one’s lion.”

Denebola – ? Leonis (Beta Leonis)

Denebola ‘s the 2nd smartest star when you look at the Leo and 61st smartest superstar from the heavens. It’s a central succession superstar towards excellent group A3 V. This has an evident magnitude from 2.113 and that’s around thirty-five.nine light-years distant out-of Planet. New star can easily be viewed without binoculars.

Denebola have 75% way more size versus Sunlight, 173% of the solar distance, which can be several minutes a whole lot more luminous. It is classified while the a beneficial Delta Scuti changeable, which means that the brightness may differ somewhat over a period of several hours. Denebola shows differences in luminosity away from 0.025 magnitudes throughout the 10 times twenty four hours.

Beta Leonis is a fairly younger star. The estimated age is actually below eight hundred million many years. Particularly Regulus, Denebola is a sudden rotator, which results in an oblate model of this new superstar, having a pouch at the equator. The latest star’s estimated rotational speed was 128 kilometer/s.

Denebola in addition to displays a powerful infrared continuously, which implies so it possess an effective circumstellar dust computer away from dust within the orbit.

Brand new celebrity belongs to the IC 2391 supercluster, an excellent organization whose affiliate celebs display a familiar action because of room, but they are perhaps not gravitationally likely. Almost every other superstars belonging to that connection was Leader Pictoris from inside the this new constellation Pictor, Beta Canis Minoris regarding constellation Canis Minor, and also the superstars in the wild group IC 2391, known as new Omicron Velorum Group, located in the constellation Vela.

Algieba – ? Leonis meddle indir (Gamma Leonis)

Gamma Leonis try a two fold superstar during the Leo. Its old-fashioned name, Algieba otherwise Al Gieba, is inspired by the brand new Arabic Al-Jabhah, which means “the latest forehead.” The newest star is sometimes known by the the Latin identity, Juba.

Algieba is made from a large star to your spectral group K1-IIIbCN0.5 and you will good dimmer lover superstar which is one of the spectral classification G7IIICN-I. The fresh brighter icon is 180 minutes more luminous as compared to Sunlight and it has a noticeable magnitude regarding dos.twenty eight. The new G7 group superstar enjoys a visual magnitude away from 3.51, is actually fifty moments lighter compared to Sunshine, and also ten moments the fresh solar power diameter. Both famous people have an orbital age of five hundred decades. A planet was located in the orbit of your own pri.

Bir cevap yazın

E-posta hesabınız yayımlanmayacak.