Nebula Mata Kucing Nebula Mata Kucing Nebula emisi Asensio rekta 17j 58m 33.423d [ 1] Deklinasi +66° 37′ 59.52″[ 1] Jarak ± 0,9 kly ± 0,3 kpc [ 2] ly Magnitudo semu (V) 9.8B[ 1] Dimensi semu (V) Core: 20″[ 2] Rasi bintang Draco Jari-jari Core: 0.2 ly [ note 1] ly Magnitudo mutlak (V) +0,8 [ note 2] Ciri penting struktur kompleks Sebutan NGC 6543,[ 1] Siput,[ 1] Bunga Matahari,[ 1] IC 4677 ),[ 1] Lihat pula: Daftar nebula
Koordinat : 17h 58m 33.423s , +66° 37′ 59.52″
Nebula Mata Kucing (NGC 6543nebula pada rasi bintang Draco . Struktur nebula ini merupakan salah satu struktur nebula paling kompleks yang pernah diketahui. Nebula ini ditemukan oleh William Herschel pada tanggal 15 Februari 1786 .
Referensi
Balick, Bruce; Preston, Heather L. (October 1987), "A wind-blown bubble model for NGC 6543" , Astronomical Journal , 94 : 958– 963, doi :10.1086/114528 Pemeliharaan CS1: Tanggal dan tahun (link ) Balick, Bruce; Wilson, Jeanine; Hajian, Arsen R. (2001), "NGC 6543: The Rings Around the Cat's Eye" , Astronomical Journal , 121 : 354, doi :10.1086/318052 Bianchi, L.; Cerrato, S.; Grewing, M. (November 1986), "Mass loss from central stars of planetary nebulae - The nucleus of NGC 6543" , Astronomy and Astrophysics , 169 (1– 2): 227– 236 Pemeliharaan CS1: Tanggal dan tahun (link ) Guerrero, Martín A.; Chu, You-Hua; Gruendl, Robert A.; Williams, Rosa M.; Kaler, James B. (2001), "The Enigmatic X-Ray Point Sources at the Central Stars of NGC 6543 and NGC 7293" , Astrophysical Journal , 553 (1): L55 – L58 , doi :10.1086/320509 Hora, Joseph L.; Latter, William B.; Allen, Lori E.; Marengo, Massimo; Deutsch, Lynne K.; Pipher, Judith L. (2004), "Infrared Array Camera (IRAC) Observations of Planetary Nebulae" , Astrophysical Journal Supplement Series , 154 (1): 296– 301, doi :10.1086/422820 Hyung, S.; Aller, L. H.; Feibelman, W. A.; Lee, W. B.; de Koter, A. (2000), "The optical spectrum of the planetary nebula NGC 6543" , Monthly Notices of the Royal Astronomical Society , 318 (1): 77– 91, doi :10.1046/j.1365-8711.2000.03642.x 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 , 260 (1– 2): 397– 410 Reed, Darren S.; Balick, Bruce; Hajian, Arsen R.; Klayton, Tracy L.; Giovanardi, Stefano; Casertano, Stefano; Panagia, Nino; Terzian, Yervant (1999), "Hubble Space Telescope Measurements of the Expansion of NGC 6543: Parallax Distance and Nebular Evolution" , Astronomical Journal , 118 (5): 2430– 2441, doi :10.1086/301091 SIMBAD (December 22, 2006), Results for Cat's Eye Nebula Pemeliharaan CS1: Tanggal dan tahun (link ) Wesson, R.; Liu, X.-W. (2004), "Physical conditions in the planetary nebula NGC 6543" , Monthly Notices of the Royal Astronomical Society , 351 (3): 1026– 1042, doi :10.1111/j.1365-2966.2004.07856.x
↑ Distance × sin(diameter_angle / 2 ) = 0.2 ly. radius ↑ 9.8B apparent magnitude – 5×{log(1.0 ± 0.3 kpc distance) − 1} = −+0,8
