Epsilon Piscis Austrini

src: i.ytimg.com

Epsilon Piscis Austrini (? Piscis Austrini) is a blue-white hued star in the southern constellation of Piscis Austrinus. It is visible to the naked eye with an apparent visual magnitude of +4.17. Based upon an annual parallax shift of 6.70 mas as seen from the Earth, the system is located roughly 490 light years from the Sun.

This is an B-type main sequence star with a stellar classification of B8 Ve. It is a Be star that is spinning rapidly with a projected rotational velocity of 216 km/s, compared to an equatorial critical velocity of 301 km/s. The star has 4.1 times the mass of the Sun and is radiating 661 times the solar luminosity from its photosphere at an effective temperature of 11,066 K.

Epsilon Piscis Austrini is moving through the Galaxy at a speed of 18.7 km/s relative to the Sun. Its projected Galactic orbit carries it between 23,900 and 28,100 light years from the center of the Galaxy.

Video Epsilon Piscis Austrini

Naming

In Chinese, ??? (Y? Lín J?n), meaning Palace Guard, refers to an asterism consisting of ? Piscis Austrini, 29 Aquarii, 35 Aquarii, 41 Aquarii, 47 Aquarii, 49 Aquarii, ? Piscis Austrini, HD 212448, 21 Piscis Austrini, 20 Piscis Austrini, ? Aquarii, 68 Aquarii, 66 Aquarii, 61 Aquarii, 53 Aquarii, 50 Aquarii, 56 Aquarii, 45 Aquarii, 58 Aquarii, 64 Aquarii, 65 Aquarii, 70 Aquarii, 74 Aquarii, ?² Aquarii, ?¹ Aquarii, ? Aquarii, 77 Aquarii, 88 Aquarii, 89 Aquarii, 86 Aquarii, 101 Aquarii, 100 Aquarii, 99 Aquarii, 98 Aquarii, 97 Aquarii, 94 Aquarii, ?³Aquarii, ?²Aquarii, ?¹Aquarii, 87 Aquarii, 85 Aquarii, 83 Aquarii, ? Aquarii, ?¹ Aquarii and ?² Aquarii. Consequently, ? Piscis Austrini itself is known as ???? (Y? Lín J?n b?, English: the Eighth Sixth Star of Palace Guard.)

Maps Epsilon Piscis Austrini

References

Source of article : Wikipedia