อ้างอิง ของ เอ็นจีซี 4236

  1. R. W. Sinnott, editor (1988). The Complete New General Catalogue and Index Catalogue of Nebulae and Star Clusters by J. L. E. Dreyer. Sky Publishing Corporation and Cambridge University Press. ISBN 0-933346-51-4.
  2. 1 2 3 4 5 6 7 8 "NASA/IPAC Extragalactic Database". Results for NGC 4236. สืบค้นเมื่อ 2007-03-30.
  3. I. D. Karachentsev (2005). "The Local Group and Other Neighboring Galaxy Groups". Astronomical Journal. 129 (1): 178–188. arXiv:astro-ph/0410065. Bibcode:2005AJ....129..178K. doi:10.1086/426368.

แหล่งที่มา

WikiPedia: เอ็นจีซี 4236 http://nedwww.ipac.caltech.edu/ //arxiv.org/abs/astro-ph/0410065 //doi.org/10.1086%2F426368 http://www.wikisky.org/?object=%E0%B9%80%E0%B8%AD%... http://www.wikisky.org/?object=%E0%B9%80%E0%B8%AD%... http://www.wikisky.org/?object=%E0%B9%80%E0%B8%AD%... http://www.wikisky.org/?object=%E0%B9%80%E0%B8%AD%... http://www.wikisky.org/?object=%E0%B9%80%E0%B8%AD%... http://www.wikisky.org/?object=%E0%B9%80%E0%B8%AD%... http://www.wikisky.org/?object=%E0%B9%80%E0%B8%AD%...