Chú thích Tinh vân Mắt Mèo

  1. ↑ Distance × sin(diameter_angle / 2) = 0,2 ly. radius
  2. ↑ 9.8B apparent magnitude – 5×{log(1,0 ± 0,3 kpc distance) − 1} = −0,2+0,8
    −0,6B absolute magnitude
  1. 1 2 3 4 5 6 7 (SIMBAD 2006)
  2. 1 2 (Reed và đồng nghiệp 1999)
  3. 1 2 3 “HST Measurements of the Expansion of NGC Parallax Distance and Nebular Evolution” (PDF). Reed D.S., Balick B., Hajian A.R. et al (1999). Truy cập ngày 31 tháng 8 năm 2006. 
  4. 1 2 3 Wesson R., Liu X.-W. (2004), "Physical conditions in the planetary nebula NGC 6543", Monthly Notices of the Royal Astronomical Society, vol. 351, p.1026
  5. ↑ Bianchi L., Cerrato S., Grewing M. (1986), "Mass loss from central stars of planetary nebulae - The nucleus of NGC 6543", Astronomy and Astrophysics, vol. 169, p.227
  6. ↑ Hora J.L., Latter W.B., Allen L.E. et al (2004), "Infrared Array Camera (IRAC) Observations of Planetary Nebulae", Astrophysical Journal Supplement Series, vol. 154, p.296
  7. ↑ Guerrero M.A., Chu Y-H., Gruendl R.A., (2001), "The Enigmatic X-Ray Point Sources at the Central Stars of NGC 6543 and NGC 7293", Astrophysical Journal, vol. 553, p.55
  8. ↑ Hyung S., Aller L.H., Feibelman W.A. et al (2000), "The optical spectrum of the planetary nebula NGC 6543", Monthly Notices of the Royal Astronomical Society, vol. 318, p.77
  9. ↑ Balick B., Preston H.L. (1987), "A wind-blown bubble model for NGC 6543", Astronomical Journal, vol. 94, p.958
  10. ↑ Miranda L.F., Solf J. (1992), "Long-slit spectroscopy of the planetary nebula NGC 6543 - Collimated bipolar ejections from a precessing central source?", Astronomy and Astrophysics, vol. 260, p.397
  11. ↑ Balick B., Wilson J., Hajian A.R. (2001), "NGC 6543: The Rings Around the Cat's Eye", Astronomical Journal, vol. 121, p.354