A still night lake, black as a mirror. A crescent moon rests on the water.｜黑镜湖面，星空徐转｜三日月が水面に寄りそい,星がゆっくり巡る静かな夜.｜Anchored to a real star catalogue.｜星は実際の星表から.~ BSC 519,V≺4.0;色指数⁄colour index BV⁄银道坐标系⁄galactic frame,银极⁄NGP极距62.87175°;观测地48°N,zenith;薄盘⁄thin disc 300 pc,厚盘⁄thick disc 900 pc;裂缝⁄Great Rift l＝50°＋80°;带芯⁄bulge 4000 K,arms 70008000 K,积分色⁄integrated colour 4840 K⁄extinction E（BV）＝0.020＋0.033（csc｜b｜1）;R_V＝3.1;lane A_V 0.80,裂缝 2.80,Coalsack 4.6⁄［DSO˸M42,M31,M8,h＋chi,M45］⁄atmosphere气辉⁄airglow（OI 557.7 nm）⁄黄极⁄ecliptic pole,对天极⁄celestial pole 23.4392°,对银极⁄galactic pole 60.19°;秋分点⁄September equinox,5800 K;30°内600 S10,球运动⁄sky rotation 0.45 °⁄s （107.7×）.
