Facing North WHEN TO USE THIS MAP Early December - 10 pm Late December - 9 pm Early January - 8 pm Late January - 7 pm 15h 18 h +60° n ci S n er th s or ros N C URSA U N Polaris _ C E PH EU S D C e en Y b G _ TA + LA C H IN U E S R b AS DELP C SIO a ` 1 _ M3 le S rc E C UA 3 M3 US _ ` LU GU IAN TR _ a P AQ IS Ci ALI S rix IO N _ t 34 M ` RD +60° Do Clusuble ter M Great Square PA ol R t lla Be a O 42 M ` RI b ` Alg S ANDROMEDA LO ¡ _ U h se eu _ lg te Be _ 0° a ME PE IA R E PEGASUS +80° CA E S AURIGA M38 M36 S IE g Moon Jan 17 R OR TT O E Q U A ` S TU CE l s ge riu Mir Ri Si _ ` N IS ` M -20° ` A J O S R Fa SW A ERID ANUS ci SE g C ng Facing West M81 M82 P Capella ` M37 M35 es E C +20° A R L I Mars P T Ald eba I C r Moo T A an Jan n UR 20 US M15 A S R R O J A U ` _ L i t t l e M +80 I N° O R Dipper X a iad ¡ n M ` N GEMINI _ Pollux Castor ` S RO CE NO MO Procyon S CANI R MINO Ple h 21 a _ U Fa ci L Y CAN CER M44 Zenith _ LE P Y A O c L Fa LE HYDRA M Janoon 24 R g Bi er pp E h 9 Facing East ` g Di DRACO a g N M Ja oo n n 28 N Ve g W 12 h Map instructions can be found on page 9. JA N UA RY | 2021 SK YC H A RT 0h 6h Fa ci n STAR MAGNITUDES -40° 3h -1 0 1 2 3 4 Facing South SYMBOLS 1/4: Charles Messier discovers globular cluster M80 in Scorpius, 1781 Galaxy Double star 1/7: Galileo Galilei makes the fi rst observation of Jupiter's moons with a telescope, 1610 Variable star Open cluster 1/11: William Herschel discovers the moons Titania and Oberon of Uranus, 1787 Diffuse nebula 1/23: Charles Messier discovers globular cluster M56, 1779 Globular cluster 1/25: Nicolas Louis de Lacaille discovers the Eta Carinae Nebula, 1752 Planetary nebula 1/31: Telescope maker Alvan Clark discovers dwarf star Sirius B, 1862 SK Y WATCH 2021 13