超级军网咸蛋这是哪疙瘩啊？
来源：百度文库 编辑：超级军网 时间：2024/04/29 14:54:29
:D :D :D :D:D :D :D :D
M78...;P
楼上的去过吗？咸蛋是怎么跑出来的？:D
猜得...;P 娃卡卡
]]
那就再贴一张
鸭梨阉往返机票9.999999999999999折了...
去看咸蛋滴快来买啊...
全程有美丽滴鸭梨阉星球小姐陪同...
预计旅程有100000000000000光年...便可到达鸭梨阉星..:D
去看咸蛋滴快来买啊...
全程有美丽滴鸭梨阉星球小姐陪同...
预计旅程有100000000000000光年...便可到达鸭梨阉星..:D
不买.偶能自己去.:victory: :victory:
:o
仙丹家？……
仙丹家？……
:@ 不买不给你发护照..
等你用100000000000000年的时间到了..又用100000000000000年的时间把你遣送回来！:D
等你用100000000000000年的时间到了..又用100000000000000年的时间把你遣送回来！:D
哪有那么远，阿扁从那里出发的，从地球出发才30，000，000光年。:D
原帖由 阿扁 于 2007-5-25 21:06 发表
:@ 不买不给你发护照..
等你用100000000000000年的时间到了..又用100000000000000年的时间把你遣送回来！:D
去咸蛋家里做客.用啥护照哦.:P
以后坏嫩都在M78活埋...;P
原帖由 马马 于 2007-5-25 21:34 发表
以后坏嫩都在M78活埋...;P
要得```
原帖由 马马 于 2007-5-25 21:34 发表
以后坏嫩都在M78活埋...;P
直接仍到黑洞里。:D
原帖由 挥剑 于 2007-5-25 21:44 发表
直接仍到黑洞里。:D
惨无人道...惨绝人寰:lol
原帖由 挥剑 于 2007-5-25 21:44 发表
直接仍到黑洞里。:D
也要得```
]]
学霸们好晚上好;P
都有天文学家来讲课了
学习啊,学无止境;P
蛋星?:o :o :o
oh, home...sweet home...
M78 is the brightest diffuse reflection nebula in the sky. Discovered by Pierre Méchain in early 1780, Charles Messier added it to his catalog on December 17, 1780. It belongs to the Orion complex, a large cloud of gas and dust centered on the Orion Nebula M42/M43, and is about 1,600 light years distant. It is the brightest portion of a vast dust cloud which includes NGC 2071 (northeast, lower right in our image), NGC 2067 (close northwest), and very faint NGC 2064 (southwest), all visible in our image. Together with some other nebulae, including NGC 2024 (Orion B) near Zeta Orionis (sometimes called the Flame Nebula), all these nebulae are associated with the molecular cloud LDN 1630 (from Lynds' Catalogue of Dark Nebula), a part of the Orion complex.
As a reflection nebula, M78 is a cloud of interstellar dust which shines in the reflected and scattered light of bright blue (early B-type) stars, among them the brightest, HD 38563A, and second-brightest HDE 38563B, both of about 10th visual apparent magnitude. The nature of M78 as a reflection nebula was discovered by Vesto M. Slipher of Lowell Observatory in 1919 (Slipher 1919). At its distance, M78 measures almost 4 light years in extension.
The image in this webpage was obtained by Evered Kreimer with a 12.5-inch Newtonian from Arizona in the mid-1960s. This image acquired some late fame in February 2004, when J.W. McNeil's supposedly "newly" discovered nebula (McNeil 2004) was found in it by a considerable number of attentive readers of these webpages.
In and near this nebula, 45 low mass stars with hydrogen emission lines, irregular variables similar to the star T Tauri, were detected. Stars of this type are main sequence stars which vary in brightness (by about 3 magnitudes) and spectral type (which is about F or G, and similar to the chromosphere of our sun), are 4 to 5 times brighter than their spectral type would suggest, and associated with nebulosity which may be bright or dark. Probably these are very young stars which are still in their formation process.
Infrared investigations have given a clearer image of the cluster of young stars which have formed in this nebula. From 2.2-micron investigations of the Molecular Cloud associated with M78, LDN 1630 (Orion B), performed with Kitt Peak National Observatory's 1.3-m IR telescope Lada et.al. (1991) concluded that much of the young, embedded star formation is occurring in clusters, including the formation of lower mass stars. After this paper, Archinal and Hynes (2003) call the open star cluster in M78 "[LDEG91] 3."
A large number of dramatic outflow sources are found in the region of M78; these so-called Herbig-Haro objects are presumably jets of matter ejected from young stars embedded in the nebulous matter of M78 where they have just formed. The discoveries by Zhao et al. (1999) brought the number of known Herbig-Haro objects in M78 to 17. A gorgeous IR image of M78 and the whole region was created by S. Van Dyk of IPAC with the 2MASS IR Telescope; these data provide an even deeper insight into the star formation process in M78.
M78 is not difficult to locate from Zeta Orionis, also named Alnitak, the easternmost star of Orion's Belt; M78 is situated about 2 degrees north and 1 1/2 degrees east of this star; a chain of 3 stars of mag 5..6, northward from Zeta, may help locating it. Alternatively, it is found roughly 1/2 deg North and 3 3/4 deg East of Delta Orionis, the NW most belt star.
Visually, M78 resembles a faint comet. It is just visible in binoculars under good conditions, as a very dim patch. Small telescopes already show it remarkably bright, and reveal the two illuminating stars, lying North preceding (NW) and South following (SE) like a double nucleus in the compact "comet head" part of M78; suggestions of a short and broad "tail" appear to reach to the South preceding (SW) end. The other nebulae in this field require a very dark sky and are much more difficult to see than M78; under very good conditions, a 4-inch can reveal NGC 2071, and suggestions of haze around M78. Stars are fewer to the west, an indication that in this region dark nebulae seem to obscure the stellar background. About 1 3/4 deg East of M78, open cluster NGC 2112 is found; this cluster is of about 9th mag and 11' in diameter, lies behind M78 at a distance of about 2800 light-years, and is much older: Estimated at about 2 billion years.
As a reflection nebula, M78 is a cloud of interstellar dust which shines in the reflected and scattered light of bright blue (early B-type) stars, among them the brightest, HD 38563A, and second-brightest HDE 38563B, both of about 10th visual apparent magnitude. The nature of M78 as a reflection nebula was discovered by Vesto M. Slipher of Lowell Observatory in 1919 (Slipher 1919). At its distance, M78 measures almost 4 light years in extension.
The image in this webpage was obtained by Evered Kreimer with a 12.5-inch Newtonian from Arizona in the mid-1960s. This image acquired some late fame in February 2004, when J.W. McNeil's supposedly "newly" discovered nebula (McNeil 2004) was found in it by a considerable number of attentive readers of these webpages.
In and near this nebula, 45 low mass stars with hydrogen emission lines, irregular variables similar to the star T Tauri, were detected. Stars of this type are main sequence stars which vary in brightness (by about 3 magnitudes) and spectral type (which is about F or G, and similar to the chromosphere of our sun), are 4 to 5 times brighter than their spectral type would suggest, and associated with nebulosity which may be bright or dark. Probably these are very young stars which are still in their formation process.
Infrared investigations have given a clearer image of the cluster of young stars which have formed in this nebula. From 2.2-micron investigations of the Molecular Cloud associated with M78, LDN 1630 (Orion B), performed with Kitt Peak National Observatory's 1.3-m IR telescope Lada et.al. (1991) concluded that much of the young, embedded star formation is occurring in clusters, including the formation of lower mass stars. After this paper, Archinal and Hynes (2003) call the open star cluster in M78 "[LDEG91] 3."
A large number of dramatic outflow sources are found in the region of M78; these so-called Herbig-Haro objects are presumably jets of matter ejected from young stars embedded in the nebulous matter of M78 where they have just formed. The discoveries by Zhao et al. (1999) brought the number of known Herbig-Haro objects in M78 to 17. A gorgeous IR image of M78 and the whole region was created by S. Van Dyk of IPAC with the 2MASS IR Telescope; these data provide an even deeper insight into the star formation process in M78.
M78 is not difficult to locate from Zeta Orionis, also named Alnitak, the easternmost star of Orion's Belt; M78 is situated about 2 degrees north and 1 1/2 degrees east of this star; a chain of 3 stars of mag 5..6, northward from Zeta, may help locating it. Alternatively, it is found roughly 1/2 deg North and 3 3/4 deg East of Delta Orionis, the NW most belt star.
Visually, M78 resembles a faint comet. It is just visible in binoculars under good conditions, as a very dim patch. Small telescopes already show it remarkably bright, and reveal the two illuminating stars, lying North preceding (NW) and South following (SE) like a double nucleus in the compact "comet head" part of M78; suggestions of a short and broad "tail" appear to reach to the South preceding (SW) end. The other nebulae in this field require a very dark sky and are much more difficult to see than M78; under very good conditions, a 4-inch can reveal NGC 2071, and suggestions of haze around M78. Stars are fewer to the west, an indication that in this region dark nebulae seem to obscure the stellar background. About 1 3/4 deg East of M78, open cluster NGC 2112 is found; this cluster is of about 9th mag and 11' in diameter, lies behind M78 at a distance of about 2800 light-years, and is much older: Estimated at about 2 billion years.
家乡简介做的不错啊:lol
原帖由 DARK★KING 于 2007-5-26 09:32 发表
家乡简介做的不错啊:lol
最好在有咸蛋的家乡语对照。:D
原帖由 挥剑 于 2007-5-26 09:34 发表
最好在有咸蛋的家乡语对照。:D
俺们现在说的话，对咸蛋来说是外语，人家简介就是母语拉;P
他这个简介还是地球语言嘛:D
楼上两位聊的好开心哦!
原帖由 挥剑 于 2007-5-26 09:41 发表
他这个简介还是地球语言嘛:D
宇宙通用语;P
原帖由 cjp324 于 2007-5-26 09:43 发表
楼上两位聊的好开心哦!
你也一起聊啊
原帖由 DARK★KING 于 2007-5-26 09:46 发表
你也一起聊啊
呵呵
想啊
米时间
原帖由 cjp324 于 2007-5-26 09:51 发表
呵呵
想啊
米时间
今天周末啊，还忙？
原帖由 DARK★KING 于 2007-5-26 10:22 发表
今天周末啊，还忙？
上班
明天也上
礼拜一休息
今天上班.明天休息.
原帖由 幽灵78111 于 2007-5-26 10:29 发表
今天上班.明天休息.
偶居然周末都上班
今天上班是为了明天更好得休息
原帖由 DARK★KING 于 2007-5-26 10:54 发表
今天上班是为了明天更好得休息
唆滴好111
纯水。。。。。。。。。:lol :lol
原帖由 一支烟 于 2007-5-26 13:12 发表
纯水。。。。。。。。。:lol :lol
每个帖子都这样啊?
小心有人找你