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NGC 7129 - 版本历史
2026-07-16T18:51:43Z
在这个wiki上该页的修订历史
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2024-09-15T07:39:35Z
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<p><b>新页面</b></p><div>{{Infobox nebula<br />
| image = [[Image:NGC_7129_(Spitzer_Space_Telescope).jpg|250px|]]<br />
|caption= [[史匹哲太空望遠鏡]]拍攝的 NGC 7129<br/>Credit: SIRTF/[[NASA]].<br />
| name = [[NGC天體表|NGC]] 7129<br />
| type = reflection<br />
| epoch = J2000.0<br />
| ra = 21<sup>h</sup> 42<sup>m</sup> 56<sup>s</sup><br />
| dec = +66° 6′ 12″<br />
| dist_ly = 3,300 ly<br />
| dist_pc = 1.01 kiloparsecs<br />
| appmag_v = 11.5<br />
| size_v = 7′ x 7′<br />
| radius_ly = 3 ly <ref>距離 × sin( 直徑角= / 2 ) = 3 光年</ref><br />
| absmag_v = 未知<br />
| constellation = [[仙王座]]<br />
| notes = <br />
| names = OCL 240, LBN 497<br />
}}<br />
<br />
'''NGC 7129'''是一個位於[[仙王座]]的[[反射星雲]]，距離地球約3300光年。一個年輕[[疏散星團]]將環繞在周圍的星雲照亮<ref name="apod1">{{Cite web |url=http://apod.nasa.gov/apod/ap070913.html |title=NGC 7129 and NGC 7142 |accessdate=2012-03-25 |archive-date=2011-10-19 |archive-url=https://web.archive.org/web/20111019051058/http://apod.nasa.gov/apod/ap070913.html |dead-url=no }}</ref>。最近的研究認為該星團有超過130個年齡1百萬年以下的恆星{{Citation needed|date=October 2011}}。NGC 7129和附近的星團[[NGC 7142]]在天球上距離只有半度。<br />
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==概要==<br />
NGC 7129外觀像玫瑰花苞，而年輕的恆星輻射使該星雲擴張。分子雲中形狀特殊的氣泡在恆星誕生時就圍繞在旁邊。玫瑰紅的顏色來自於氣泡表面被來自年輕恆星的輻射加熱的塵埃。年輕恆星產生的紫外線和可見光被周圍的塵埃吸收並將塵埃加熱，使塵埃釋放出波長較長的紅外線並且被[[史匹哲太空望遠鏡]]拍攝。屬於[[假色]]的偏紅顏色代表富含碳氫化合物分子區域發射的紅外線輻射{{Citation needed|date=October 2011}}。<br />
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氣泡外溫度低得多的分子雲大多無法被史匹哲拍攝到；但是三個接近星雲中心的極年輕恆星發射出超音速噴流進入雲氣。雲氣和噴流氣體互相碰撞使星雲中的[[一氧化碳]]分子被加熱，產生的複雜結構雲氣在史匹哲的影像上就像是玫瑰花苞的莖{{Citation needed|date=October 2011}}。<br />
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==圖集==<br />
<gallery><br />
File:NGC7129.jpg|[[萊蒙山天文台]]口徑24英吋望遠鏡拍攝的NGC 7129。感謝 Joseph D. Schulman。<br />
</gallery><br />
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==參考資料==<br />
{{reflist}}<br />
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==外部連結==<br />
{{Commons category}}<br />
*http://www.noao.edu/outreach/aop/observers/n7129.html{{Wayback|url=http://www.noao.edu/outreach/aop/observers/n7129.html |date=20120315014544 }}<br />
*[https://web.archive.org/web/20060908081658/http://www.spitzer.caltech.edu/Media/releases/ssc2004-02/release.shtml "Valentine's Day" 2004 Spitzer Space Telescope press release: the "Cosmic Rose"]<br />
*[https://web.archive.org/web/20070324113855/http://sscws1.ipac.caltech.edu/Imagegallery/image.php?image_name=ssc2004-02a image from the Spitzer Space Telescope]<br />
*[http://coolcosmos.ipac.caltech.edu/resources/paper_products/print_publication_pdf/ngc7129.pdf printable lithograph from the Spitzer Space Telescope]{{Wayback|url=http://coolcosmos.ipac.caltech.edu/resources/paper_products/print_publication_pdf/ngc7129.pdf |date=20070204165114 }}<br />
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[[Category:仙王座NGC天体|7129]]<br />
[[Category:反射星雲]]</div>
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