Caption: 金牛座及其明亮恆星與周邊星座示意圖。從頂部開始沿順時針方向，金牛座周邊的星座依次為：英仙座、白羊座、鯨魚座、波江座、獵戶座、雙子座和御夫座。金牛座最亮的恆星是畢宿五，位於整個星座的中央。金牛座位於黃道上。從地球看來，太陽以一年為週期在天球上移動，所經過的路徑稱為黃道，在圖中以藍色實線標注。太陽在每年五月中旬到六月下旬位於金牛座。太陽系中的其他行星也經常出現在金牛座。 金牛座大部分位於天赤道以北，小部分位於天赤道以南。在地球上，除了南極地區和北極點周圍的一小部分地區以外，一年中的某些時候都能看到整個金牛座。金牛座在北半球的冬季和南半球的夏季夜晚最適宜觀測。 在金牛座的東部，可以看到超新星遺跡M1，通常稱為蟹狀星雲，在圖中以綠色方塊標注。在金牛座的東北部，可以看到全天最著名的疏散星團之一M45，即昴星團，在圖中以黃色圓圈標注。畢宿五附近（但不包括畢宿五本身）的許多恆星都是另一個星團——畢星團的成員。不過畢星團離太陽系比較近，因此在天球上顯得過於分散，不像昴星團那樣擁有梅西葉天體編號。 該圖的縱軸為赤緯，橫軸為赤經，方向為上北下南左東右西。圖中標注的恆星大小對應其視星等——衡量天體視亮度的標準，較大的圓點代表著較亮的恆星。圖中的希臘字母標注著星座中最亮的恆星。這些恆星按亮度排序，最亮的一般被標記為α星，第二亮的一般為β星，等等，不過這種字母排序並不總是和實際亮度排序完全一致。圖中虛線標注的是國際天文學聯合會劃定的星座邊界，綠色實線則是一種常見的星座形象連線。需要注意的是，在實際觀測時，這些邊界與連線都不會出現在天空中。
Credit: 國際天文學聯合會天文教育辦公室（IAU OAE）根據國際天文學聯合會和《天空與望遠鏡》的原文改編

Caption: The constellation Cygnus with its bright stars and surrounding constellations. Cygnus is surrounded by (going clockwise from the top): Cepheus, Draco, Lyra, Vulpecula, Pegasus and Lacerta. Cygnus is notable for its brightest star Deneb. This forms one vertex of the prominent Summer Triangle asterism that is visible in northern hemisphere summer evenings. Cygnus is a northern constellation and thus the whole of the constellation is visible at some point in the year in the whole northern hemisphere. The whole constellation is also visible from equatorial regions of the southern hemisphere with parts of the constellation visible from temperate southern regions. The plane of the Milky Way runs through Cygnus and thus the constellation is rich in nebulae and star clusters. These include the North America Nebula (NGC 7000) and the Crescent Nebula (NGC 6888). The Veil Nebula is a huge supernova remnant, parts of which are marked here as NGC 6960 and NGC 6992/5. All of the previously-mentioned nebulae are marked with green squares. The planetary nebula NGC 6826 is marked here with a green circle superimposed on a plus sign. The open star clusters M29 and M39 are marked here with yellow circles. The y-axis of this diagram is in degrees of declination with north as up and the x-axis is in hours of right ascension with east to the left. The sizes of the stars marked here relate to the star's apparent magnitude, a measure of its apparent brightness. The larger dots represent brighter stars. The Greek letters mark the brightest stars in the constellation. These are ranked by brightness with the brightest star being labeled alpha, the second brightest beta, etc., although this ordering is not always followed exactly. The dotted boundary lines mark the IAU's boundaries of the constellations and the solid green lines mark one of the common forms used to represent the figures of the constellations. Neither the constellation boundaries, nor the lines joining the stars appear on the sky.
Credit: Adapted by the IAU Office of Astronomy for Education from the original by the IAU and Sky & Telescope