Caption: 2022 年國際天文學聯合會 OAE 天體攝影比賽靜態天體圖案類獲獎作品。 本影像攝於2019年2月意大利威尼託大區的密蘇里納湖（Lago di Misurina），呈現冬夜星空與雪原交輝的奇景。 銀河弧光下，夜空中最亮的天狼星（Sirius/大犬座α）閃耀於東南方。在希臘神話中，這顆"燃燒者"隸屬獵戶座忠犬——大犬座（Canis Major）。其左側的小犬座（Canis Minor）以"先犬星"（Procyon/南河三）為主導，該星名暗示其先於天狼星升起的特性。獵戶座位於大犬座右側，其標誌性"腰帶三星"清晰可辨。 獵戶座右上方樹冠處，金牛座的畢宿星團（Hyades）與昴星團（Pleiades）構成傳說中的"天界之門"，此處恰為黃道與銀河兩大天球基準圈的交匯點。希臘神話中，金牛化身喻指宙斯誘拐腓尼基公主歐羅巴的傳說。 金牛座上方銀河弧緣，御夫座主星五車二（Capella）粲然生輝。這顆恆星在印度教中被視為創世神梵天之心，而巴西博羅羅原住民則將御夫座部分星群與鄰座恆星共組"凱門鱷星座"。 金牛座右側可見英仙座（Perseus），其內的英仙座h+χ雙星團被古希臘人視為英雄珀爾修斯神劍的寒光。這位斬殺海怪、解救安德洛墨達的傳奇人物，其故事經奧維德史詩流傳至今。影像中同樣可見呈W形的仙後座（Cassiopeia）——希臘詩人阿拉托斯筆下象徵"天國之鑰"的星群，在印度天文傳統中對應莎米什塔公主，在泰國喻指蝙蝠，於阿拉伯古星象中則化身駱駝。 林木間隙處，肉眼可辨的仙女座星系（Andromeda Galaxy）靜靜懸浮。
Credit: Giorgia Hofer/IAU OAE

Caption: The constellation Andromeda showing the bright stars and surrounding constellations. Andromeda is surrounded by (going clockwise from the top) Cassiopeia, Lacerta, Pegasus, Pisces, Aries, Triangulum and Perseus. The brightest star in Andromeda (Alpheratz) is in the lower part of the constellation. Together with three stars in Pegasus it forms the asterism known as the "Great Square of Pegasus". The next two bright stars in the constellation (Mirach and Almach) form a line extending north-east from Alpheratz. Andromeda is a northern constellation and is most visible in the evenings in the Northern Hemisphere autumn. It is visible from all of the Northern Hemisphere and most temperate regions of the Southern Hemisphere but is not visible from Antarctic and Subantarctic regions. The most famous object in Andromeda, the Andromeda Galaxy is marked here with a red ellipse and its Messier catalog number M31. The yellow circle on the left marks the position of the open cluster NGC 752 and the green circle on the right marks NGC 7662 (the blue snowball nebula), a planetary nebula. 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 IAU/Sky & Telescope

Caption: The constellation Cassiopeia along with its bright stars and its surrounding constellations. Cassiopeia is surrounded by (going clockwise from the top):Cepheus, Andromeda, Perseus and Camelopardalis. Cassiopeia is a northern constellation that is visible from all of the northern hemisphere and equatorial regions of the southern hemisphere. It is most visible in the evenings in the northern hemisphere late autumn and southern hemisphere late spring. The open star clusters M52, M103, NGC 457 and NGC 663 all lie in this constellation. These are marked with yellow circles. Two dwarf elliptical galaxies NGC 147 and NGC 185 lie in the southern part of the constellation. These are marked with red ellipses and are gravitationally bound to the larger Andromeda galaxy which lies to the south in the constellation of Andromeda. 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 IAU/Sky & Telescope

Caption: The constellation Triangulum with its bright stars and surrounding constellations. Triangulum is surrounded by (going clockwise from the top): Andromeda, Pisces, Aries and Perseus. Triangulum is a northern constellation and thus the whole constellation is visible at some point in the year throughout the northern hemisphere. The whole constellation is also visible from equatorial and most temperate regions of the southern hemisphere. Triangulum is best viewed in the evening in the northern hemisphere winter and southern hemisphere summer. The Triangulum Galaxy M33 lies in the constellation. This spiral galaxy is the third largest member of the local group of galaxies after the Andromeda Galaxy and Milky Way. It is marked here with a red ellipse. 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. The blue line at the bottom left of the diagram marks the ecliptic. Neither the constellation boundaries, nor the lines joining the stars, nor the ecliptic, appear on the sky.
Credit: Adapted by the IAU Office of Astronomy for Education from the original by the IAU and Sky & Telescope