NGC 2023 is an emission and reflection nebula in the equatorial constellation of Orion. It was discovered by the German-born astronomer William Herschel on 6 January 1785. This reflection nebula is one of the largest in the sky, [4] with a size of 10 × 10 arcminutes. [3]

ngc 2023是在赤道 星座 獵戶座中的一個發射和反射星雲。 它是由出生於 德國 的天文學家 威廉·赫歇爾 在1785年1月6日發現的。 這個反射星雲是天空中最大的星雲之一 [ 4 ] ， 大小為 10 × 10 弧分 [ 3 ] 。

ngc 2023是在赤道 星座 獵戶座中的一個發射和反射星雲。 它是由出生於 德國 的天文學家 威廉·赫歇爾 在1785年1月6日發現的。 這個反射星雲是天空中最大的星雲之一 [ 4 ] ， 大小為 10 × 10 弧分 [ 3 ] 。

NGC 2023 is a Reflection Nebula in the Orion constellation. NGC 2023 is situated close to the celestial equator and, as such, it is at least partly visible from both hemispheres in certain times of the year. The image below is a photograph of NGC 2023 from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel.

NGC 2023（也称LBN 954）是一个直径约4光年的漫反射星云，位于1467.7光年之外的 猎户座 B分子云的南面，非常接近猎户座的 马头星云 （Barnard 33）。 这个星云实际上是在周围，由蓝白B型大恒星HD37903提供动力，它是年轻恒星群中最明亮的成员。 B型恒星的表面温度通常在11000-25000开尔文之间。 相比之下，太阳的温度是5000开尔文。 ngc 2023是荧光分子氢最大、最亮的来源之一，是一个恒星形成活跃的区域。 NGC 2023（也称LBN 954）是一个直径约4光年的 …

Surprisingly colorful and complex filaments are detailed in this rare NGC 2023 portrait. Scattered points of emission are also from the region's Herbig-Haro objects, associated with the energetic jets from newborn stars. The sharp telescopic view spans about 10 light-years at the estimated distance of NGC 2023.

2011年7月25日 · The magnificent reflection nebula NGC 2023 lies nearly 1500 light-years from Earth. It is located within the constellation of Orion (The Hunter), in a prestigious area of the sky close to the well-known Flame and Horsehead Nebulae. The entire structure of NGC 2023 is vast, at four light-years across.

NGC 2023 is an emission and reflection nebula in the constellation of Orion. This reflection nebula is one of the largest in the sky, with a size of 10 10 arcminutes. It is located at a distance of 1,300 ly from the Sun, and is positioned ~15′ to the northeast of the Horsehead Nebula.

NGC 2023 is a Reflection Nebula located in the constellation of Orion in the equatorial region. NGC 2023 is called NGC 2023 in the New General Catalogue (NGC). This catalogue is a list of deep space objects compiled by John Louis Emil Dreyer in 1888 to …

NGC 2023 is an emmission and reflection nebula located in the constellation of Orion, most times seen in images of the Horsehead nebula. We took direct aim at this nebula to try to bring out all of its wonderful detail. It is 4 light years in diameter making it one of the largest reflection nebulae ever discovered.