อ้างอิง ของ กระจุกดาวรวงผึ้ง

  1. ↑ (IAAC) OBJECT: M44 (Beehive cluster)
  2. ↑ Beehive Cluster - Encharta
  3. ↑ Messier 44: Observations and Descriptions, at http://www.maa.clell.de/Messier/Mdes/dm044.html.
  4. ↑ Klein-Wassink WJ. (1927) The proper motion and the distance of the Praesepe cluster. Publications of the Kapteyn Astronomical Laboratory Groningen, 41: 1-48.
  5. ↑ Dobbie PD, Napiwotzki R, Burleigh MR, et al. (2006) New Praesepe white dwarfs and the initial mass-final mass relation. Monthly Notices of the Royal Astronomical Society, 369: 383-389.
  6. ↑ (จีน) AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 5 月 27 日

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