^ abcd"NASA/IPAC Extragalactic Database". Results for NGC 604. Retrieved 2006-09-03.
^ abcBarba, Rodolfo (2004). "An in-depth analysis of a prototypical giant H II region: NGC 604". HST Proposal ID #10419: 10419. Bibcode:2004hst..prop10419B.
^Maíz-Apellániz, J.; Pérez, E.; Mas-Hesse, J. M. (2004). "NGC 604, the Scaled OB Association (SOBA) Prototype. I. Spatial Distribution of the Different Gas Phases and Attenuation by Dust". The Astronomical Journal. 128 (3): 1196–1218. arXiv:astro-ph/0406130. Bibcode:2004AJ....128.1196M. doi:10.1086/422925.
Some data in the table was updated from Sue French's column "Deep-sky Wonders", in the January 2006 issue of Sky & Telescope, p. 83.
External links
Wikimedia Commons has media related to NGC 604.
Nebula NGC 604 @ SEDS Messier pages
NASA Astronomy Picture of the Day: NGC 604 (16 August 1996)
NASA Astronomy Picture of the Day: NGC 604: Giant Stellar Nursery (11 December 2012)
This nebula-related article is a stub. You can help Wikipedia by expanding it.
region, inside, triangulum, galaxy, discovered, william, herschel, september, 1784, among, largest, regions, local, group, galaxies, galaxy, estimated, distance, million, light, years, longest, diameter, roughly, light, years, parsecs, over, times, size, visib. NGC 604 is an H II region inside the Triangulum Galaxy It was discovered by William Herschel on September 11 1784 It is among the largest H II regions in the Local Group of galaxies at the galaxy s estimated distance of 2 7 million light years its longest diameter is roughly 1 520 light years 460 parsecs over 40 times the size of the visible portion of the Orion Nebula It is over 6 300 times more luminous than the Orion Nebula and if it were at the same distance it would outshine Venus Its gas is ionized by a cluster of massive stars at its center 4 with 200 stars of spectral type O and WR a mass of 105 solar masses and an age of 3 5 million years 2 however unlike the Large Magellanic Cloud s Tarantula Nebula central cluster R136 NGC 604 s one is much less compact and more similar to a large stellar association 5 NGC 604Emission nebulaH II regionNGC 604 inside the Triangulum Galaxy viewed by the Hubble Space Telescope Observation data J2000 epochRight ascension01h 34m 33 2s 1 Declination 30 47 06 1 Distance2 700 000 ly 840 000 2 pc Apparent magnitude V 14 0 1 Apparent dimensions V 1 93 x 1 2 arcmins 1 ConstellationTriangulumPhysical characteristicsRadius760 3 lyAbsolute magnitude V 13 8Notable featuresmassive H II region3 5 million years old 2 See also Lists of nebulaeSee also EditTarantula Nebula List of largest nebulaeReferences Edit a b c d NASA IPAC Extragalactic Database Results for NGC 604 Retrieved 2006 09 03 a b c Barba Rodolfo 2004 An in depth analysis of a prototypical giant H II region NGC 604 HST Proposal ID 10419 10419 Bibcode 2004hst prop10419B distance sin diameter angle 2 760 ly radius Nemiroff R Bonnell J eds 2 November 2002 NGC 604 Giant Stellar Nursery Astronomy Picture of the Day NASA Maiz Apellaniz J Perez E Mas Hesse J M 2004 NGC 604 the Scaled OB Association SOBA Prototype I Spatial Distribution of the Different Gas Phases and Attenuation by Dust The Astronomical Journal 128 3 1196 1218 arXiv astro ph 0406130 Bibcode 2004AJ 128 1196M doi 10 1086 422925 Some data in the table was updated from Sue French s column Deep sky Wonders in the January 2006 issue of Sky amp Telescope p 83 External links Edit Wikimedia Commons has media related to NGC 604 Nebula NGC 604 SEDS Messier pages NASA Astronomy Picture of the Day NGC 604 16 August 1996 NASA Astronomy Picture of the Day NGC 604 Giant Stellar Nursery 11 December 2012 This nebula related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title NGC 604 amp oldid 1065063801, wikipedia, wiki, book, books, library,
