ETA CARINAE STAR SYSTEM

One day unexpectedly, a star looks brighter than its normal brightness in space. In first scientists guess that it may be a SUPERNOVA, but they researched further and found that a NEBULA formed around that star. The scientists keep an eye to that star and named it as ETA CARINAE STAR SYSTEM. Let's see more about it. 

HOMONGULUS NEBULA:

Eta Carinae is a Binary Star. It is around 7,500 light years distance from our Earth. It is one of the brightest star below 10,000 light years. In 1600's, It is converted from 4th magnitude stage to1st magnitude stage.(magnitude here refers to its brightness.) and this brightness increases day by day. It is the second brightest star that time. It maintains it's brightness around 5-6 years and then it tends to decrease its brightness. In 1940 only It was completely researched and concluded that the star forms a NEBULA which is named as HOMONGULUS NEBULA. It is a binary star by two stars Eta Carinae-A & Eta Carinae-B. Among them Eta Carinae-A is the brightest star. Eta Carinae-A contains 120-150 solar mases and Eta Carinae-B contains 30-60 solar masses. Eta Carinae-A& Eta Carinae-B emits 6million times brighter light than our Sun. It formed from 3-4 million years only.

HOW IS THIS TOO BIG😲:

Then, how SUPERNOVA is possible? well a new star Eta Carinae-C is begins to join in that Eta Carinae star system. Due to the GRAVITATIONAL FORCE of Eta Carinae-A  takes the 75% mass of Eta Carinae-B and pulls away from it. The stellar particles around Eta Carinae-A begins to blast and make the NEBULA structure. This eruption un stables Eta Carinae-A. This can affect The Eta Carinae-A and within 5 million years it is going to blast.

ETA-CARNIAE-A --------) BLACK HOLE: 

Eta Carinae-A is not much visible from our Earth due to the denser NEBULA. every 5.5 years once it dims its light and then increasing its brightness. This phenomenon is due to the affect of Eta Carinae-B. The NEBULA does not formed by SUPERNOVA. within 5million it becomes SUPERNOVA and a chance it may become BLACKHOLE.

THE CONCLUSION:

Suppose Eta Carinae is converted into SUPER NOVA tomorrow, for 1 years it was brighter than our Moon in night. Researches continues to this star system and the Human discovery of SUPERNOVA it is different then all of them.