NGC 7027 is one of the smallest, brightest, and most unusually shaped planetary nebulas known. © The SAO/NASA Astrophysics Data System Kudos 365 Incorporates Patent Pending Technology. Agreement Kudos Community® and Kudos 365® are federally registered trademarks of Kudos 365, Inc. Maps at the line center reveal a bright inner ring of CO emission which surrounds a central CO minimum coincident with the ionized gas. The integrated intensity map shows that the circumstellar molecular envelope has a diameter-to-zero intensity of about 70 arcsec, corresponding to a linear size of 0.30 pc at a distance of 900 pc.
Given its expansion rate, NGC 7027 first started expanding, as visible from Earth, about 600 years ago. Given its expansion rate, NGC 7027 first started expanding, as visible from Earth, about 600 years ago. Despite the name, planetary nebulae are not actually planets. It is inferred from the CO emission line morphology that (1) the molecular material is constraining the development of the ionized nebula; (2) the mass loss from the central star was neither spherically symmetric nor completely uniform in time; and (3) the molecular envelope contains significant structure on scales smaller than 5 arcsec. The neutral envelope possess axial symmetry which is aligned with the symmetry axis of the ionized nebula. Kudos 365, Inc. All Rights Reserved. Discovered in 1878 by Édouard Stephan using the 800 mm (31 in) reflector at Marseille Observatory, [4] it is one of the smallest planetary nebulae and by far the most extensively studied. What created this unusual planetary nebula?
NGC 7027 (= P-K 084-03.1 = "PGC 3517820"), the "Jewel Bug" Nebula Discovered (1878) by Édouard Stephan Discovered (Nov 14, 1879) by Thomas Webb A magnitude 8.5 planetary nebula in Cygnus (RA 21 07 01.6, Dec +42 14 10) Historical Identification: Per Dreyer, NGC 7027 (Stephan list IX (#27), Webb, 1860 RA 21 01 48, NPD 48 19.6) is "a planetary nebula, stellar = 8.5 magnitude". The diameter of the nebula is about 600 times larger than the diameter of our solar system. What lies at the nebula's center is unknown, with one hypothesis holding it to be a close binary star system where one star sheds gas onto an erratic disk orbiting the other star. NGC 7027, PNG 084.9-03.4, PK 084-03.1, ARO 40 Integrated Visual Magnitude: 10.4 Apparent Diameter: 14" Distance: 2600 ly Actual Diameter: 11,000 AU. Located 3,000 light-years away near the constellation Cygnus, this planetary nebula, called NGC 7027, has conditions that allow this mystery molecule to form, NASA said in a statement. The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative The integrated intensity map shows that the circumstellar molecular envelope has a diameter-to-zero intensity of about 70 arcsec, corresponding to a linear size of 0.30 pc at a distance of 900 pc. Right Ascension: 21 : 07.1 (hours : minutes) Declination: +42 : 14 (degrees : minutes) Apparent Magnitude: 10. p: Apparent Diameter: 0.3 (arc minutes) NGC Home NGC 7026 | NGC 7028. NGC 7027 Planetary nebula in Cygnus Dreyer's description: PN , stellar = 8.5m .
Maps of the J = 1-0 emission line of CO toward the planetary nebula NGC 7027 are presented.