He’s found at an enthusiastic angular length away from 177 arc mere seconds away from Regulus An excellent. He could be dimmer head series celebrities which have a noticeable magnitude off 8.14 and you can 13.5. Regulus B try a great K2V superstar additionally the partner is thought is a yellow dwarf of your spectral particular M4V. The 2 a-listers are separated by the on one hundred astronomical gadgets and you may keeps an enthusiastic orbital chronilogical age of dos,100 ages.
The key celebrity regarding Regulus A is an earlier superstar, not totally all billion yrs old, and also step 3.five times the newest size of your own Sunshine. The latest superstar are an exceptionally timely rotator, that have good rotation age merely fifteen.nine circumstances. This is why, this has a keen oblate profile. If this have been rotating 16% faster, new centripetal force provided with the star’s gravity wouldn’t be adequate to secure the star together with her.
Leader Leonis ‘s the nearest vibrant superstar with the ecliptic. For this reason, it is daily occulted by the Moonlight and, scarcely, of the Mercury and you will Venus.
Regarding north hemisphere, Regulus is the better found in the night time on later winter months and you may spring season. The only real time of year if the superstar can not be seen is for 30 days towards both sides away from August 22, if it lays as well around the Sunrays.
Brand new star’s term, Regulus, mode “little king” otherwise “prince” for the Latin. The star’s Greek title, Basiliscos, had the exact same definition. This new Arabic title toward star was Qalb al-Asad, which means that “one’s heart of the lion.”
Denebola – ? Leonis (Beta Leonis)
Denebola ‘s the 2nd brightest superstar into the Leo and the 61st brightest celebrity on air. It is a central series celebrity to the stellar classification A3 V. It has got an evident magnitude of 2.113 in fact it is just as much as 35.9 light-years faraway regarding Planet. This new star could easily be viewed as opposed to binoculars.
Denebola enjoys 75% a great deal more mass compared to the Sun, 173% of solar power distance, that is a dozen times alot more luminous. It is categorized given that a Delta Scuti varying, meaning that the illumination may vary slightly during a period of a couple of hours. Denebola exhibits differences in luminosity from 0.025 magnitudes from the ten minutes day.
Beta Leonis was a somewhat young star. Their projected years was less than 400 mil decades. Including Regulus, Denebola was an abrupt rotator, which leads to a keen oblate shape of the brand new star, having a fat during the equator. The fresh new star’s projected rotational speed are 128 kilometres/s.
Denebola and additionally exhibits a strong infrared excessively, which suggests so it have a good circumstellar dust drive from soil in orbit.
The brand new superstar is one of the IC 2391 supercluster, a stellar relationship whose representative celebs show a familiar action due to place, however they are not gravitationally bound. Most other celebs that belong compared to that association is Leader Pictoris in the fresh new constellation Pictor, Beta Canis Minoris regarding the constellation Canis Lesser, as well as the celebs in the open people IC 2391, also known as new Omicron Velorum Party, found in the constellation Vela.
Algieba – ? Leonis (Gamma Leonis)
Gamma Leonis is a dual superstar within the Leo. Its old-fashioned identity, Algieba or Al Gieba, originates from the brand new Arabic Al-Jabhah, which means “the brand new temple.” The fresh new celebrity can be sometimes known because of the the Latin term, Juba.
Algieba contains a massive star towards spectral classification K1-IIIbCN0.5 and you may a great dimmer partner celebrity and therefore belongs 
to the spectral class G7IIICN-We. The brighter large try 180 moments a whole lot more luminous compared to Sunlight and has now an evident magnitude of dos.twenty eight. Brand new G7 group superstar provides a visual magnitude away from 3.51, is 50 times better as compared to Sunshine, possesses 10 times the fresh new solar power diameter. The 2 a-listers possess an orbital period of five hundred ages. An earth are receive throughout the orbit of the pri.