Look up at sky, the majority of celestial or heavenly body that we can see is sidereal, sidereal nevertheless size diversity also is very big, the sun quality that can visual sidereal majority compares us is greater, our sun pledges hidebound celestial or heavenly body cannot see with naked eye for the most part, be apart from our closest near neighbour star for instance, have the Yao of 4.22 light-year only, but using astronomy binoculars is to cannot see at all, and the star with a lot of bigger quality is apart from us hundreds or thousands of light-year can be witnessed.
Discover the youngest star is 2MASS J0523-1403 in astronomical observation up to now, no matter be bulk or quality,be the smallest in foregone star. It is apart from us to have 40 light-year only, be located in day hare direction, it is one is in advocate the red dwarf of foreword star phase, brightness is only the 1/80000 of the sun, exterior temperature also has 1800 ℃ only, the exterior temperature of our sun is 5600 ℃ left and right sides, so this sidereal need uses ability of binoculars of large and accurate astronomy to see.
This sidereal build is small also to make us amazed, 9% what its radius still is less than the sun, for fifty-nine thousand eight hundred kilometre, jupiter is bigger than it, its comparative with Saturn only. Its quality is greater than Jupiter and Saturn however nevertheless much, it is 84 times of Jupiter about, very may much friend should be startled, a celestial or heavenly body is large without Jupiter still, but quality is 84 times greater than Jupiter however, is this likely? But be being analysed according to astronomical observation result is such, or it also cannot become star.
Think bounds of sidereal the smallest quality is the 7~8% of the sun normally, j0523 quality is equivalent to the sun 0.08 times the left and right sides, be in sidereal the smallest quality the brim of critical value, there also should be younger than J0523 star in the universe, but qualitative value of a quantity plays detective again at most 1% , if quality is again small, cannot become star basically.
The star with foregone the at present biggest quality is R136a1, be located in the barley sagacious Lun Xing besides 160 thousand light-year is medium, this is blue special supergiant, quality is as high as 265 times of the sun, those who be equivalent to the smallest sidereal J0523 3300 multiple, its surface temperature is as high as 53 thousand degrees, its bulk is equivalent to counting a sun.
Although this sidereal foregone quality is the greatest,do not pass, not be volume is the largest however, shield UY just is the star that discovers radius is the biggest at present, bulk is equivalent to 4.5 billion times of the sun, be equivalent to 5.3 trillion times of J0523, this is red special supergiant, its quality is far be inferior to R136a1, have the sun only 30 times the left and right sides, the celestial or heavenly body with larger volume still has Canis Major VY, compare shield only UY is a few smaller, its quality is not great also nevertheless, the star with bigger quality has star of strike back gun and seamount second-class, quality is the sun about 100 times the left and right sides, its brightness is very tall also, like seamount the brightness of 2 is equivalent to 5 million times of the sun.
Nevertheless above what say still be foregone quality and bulk the biggest with the youngest star, as the human exploration to the universe, these records still are met by refresh.
