Titlebook: 1,001 Celestial Wonders to See Before You Die; The Best Sky Objects Michael E. Bakich Book 2010 Springer Science+Business Media, LLC 2010 A

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Michael E. BakichHighlights the 1,001 best and brightest sky objects to observe.Detailed finder charts make objects simple to find.Objects range from "easy" to "challenging" for all levels of observers.Hundreds of ima

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The Patrick Moore Practical Astronomy Serieshttp://image.papertrans.cn/012/image/100152.jpg

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https://doi.org/10.1007/978-3-031-32755-1Our first target, the Christmas Tree Cluster, is a fine deep-sky object in the faint constellation Monoceros the Unicorn. At magnitude 3.9, this grouping of stars is easily bright enough for you to spot with your naked eyes, albeit as an indistinct fuzz ball. To find it, look 3.2° south-southwest of magnitude 3.4 Xi (ξ) Geminorum.

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Mohamed I. Fayad,Bradford R. JohnsonAstronomers classify this unusual lenticular galaxy as a polar ring galaxy. Several filamentary strands, made up of knots of luminous star-forming regions, form a helical band perpendicular to the galaxy’s main disk and centered on its nucleus.

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Gang He,Xiaohua Cai,Yuntao Hou,Yan YeThis binary lies in a rather star-poor region of the sky. One way to find it is to move 5.4° southwest from magnitude 3.6 Omicron (ο) Andromedae. Any size telescope will split this pair. Both components are white.

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Bioprinting in Personalized Medications,The easiest way to find our next target is to first locate magnitude 4.2 Kappa (κ) Cassiopeiae. Then move 1.5° southwest to the star 12 Cas. From there, drop south 0.5°.

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