Pismis 24-1(即HDE 319718),是瀰漫星雲NGC 6357中的疏散星團Pismis 24的一部分,距離地球8,150光年,是Pismis 24中質量最大、亮度最高的恆星,也是目前已知光度最亮的恆星之一。
在最近哈勃太空望遠鏡對Pismis 24-1的觀測發現,它至少是一個三聯星系統,包括Pismis 24-1SW和一對雙星Pismis 24-1NE。Pismis 24-1SW的光譜類型已經確定,它是一顆非常明亮的藍超巨星,將可能演化為高光度藍變星。Pismis 24-1NE的光譜型還沒確定。上述恆星和位於其附近的Pismis 24-17在誕生時質量都接近100個太陽質量,但並沒有超過愛丁頓極限。
參考文獻
- Massey, Philip; DeGioia-Eastwood, Kathleen; Waterhouse, Elizabeth. The Progenitor Masses of Wolf-Rayet Stars and Luminous Blue Variables Determined from Cluster Turnoffs. II. Results from 12 Galactic Clusters and OB Associations. The Astronomical Journal. 2001, 121 (2): 1050. Bibcode:2001AJ....121.1050M. arXiv:astro-ph/0010654 . doi:10.1086/318769.
- http://jumk.de/astronomie/big-stars/hde-319718.shtml(頁面存檔備份,存於網際網路檔案館)
- http://www.tim-thompson.com/hde319718.html(頁面存檔備份,存於網際網路檔案館)
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