Turn Left at Orion January-March Objects Object Size/ Rating For Best View: Coordinates Name Constellation Object Type Magnitudes Double Star Separation Dob small binocs sky magnification Right Ascension Declination notes page additional description M42 Orion Diffuse Nebula 4 60' by 65' 5 5 5 any low/medium 5 H 35.3 min. -5¡ 25' Orion Nebula - spectacular! 52 a truly spectacular emission nebula surrounding the Trapezium M43 Orion Diffuse Nebula 9 15' by 20' 2 1 x dark low/medium 5 H 35.6 min. -5¡ 16' companion nebula to M42 52 "emission nebula, nestled up near M42" NGC 1981 Orion Open Cluster 4.2 28' 2 1 x dark low 5 H 35.1 min. -5¡ 25' open cluster near M42 53 open cluster near M42; poor with medium brightness range and strong central concentration NGC 1980 Orion Diffuse Nebula 7.9 14' 2 1 x dark low 5 H 35.4 min. -4¡ 54' nebula near M42 53 open cluster near M42 containing some nice multiple stars Struve 745 Orion Double Star "8.5, 8.5" "29""" 1 1 x steady medium 5 H 34.7 min. -6¡ 0' double star near M42 54 "dimmer white-white pair, near Struve 747" Struve 747 Orion Double Star "4.7, 5.5" "36""" 1 1 x steady medium 5 H 35 min. -6¡ 0' double star near M42 54 "wide white-white pair, near Iota Orionis" Iota Orionis Orion Double Star "2.9, 7.0, 9.7" "11"", 49""" 1 1 x steady medium 5 H 35.4 min. -5¡ 54' double star near M42 54 unequal triple: blue-white-white "Theta-1 Orionis, Trapezium" Orion Multiple Star "5.1, 6.6, 6.6, 6.3, 11.1, 11.5" "13"", 17"", 12"", 5"", 5""" 5 4 x steady medium 5 H 35.3 min. -5¡ 25' "Trapezium, sextuple star with M42" 55 at the core of M42; the two dimmer stars are challenging Theta-2 Orionis Orion Double Star "5.2, 6.5" "52""" 1 1 x steady high 5 H 35.4 min. -5¡ 26' double star near M42 55 "very wide, bright white-white pair" BM Orionis Orion Variable Star 7.9-8.65; 6.47 days 1 1 x any high 5 H 35.3 min. -5¡ 23' eclipsing variable in the Trapezium 55 most northerly of the Trapezium stars V1016 Orionis Orion Variable Star 6.7-7.65; 65.43 days 1 1 x any medium 5 H 35.3 min. -5¡ 23' eclipsing variable in the Trapezium 55 most westerly of the four bright Trapezium stars Struve 761 Orion Multiple Star "7.9, 8.4, 8.6" "67"", 8.7""" 3 3 1 steady high 5 H 38.6 min. -2¡ 34' "triple star, with Sigma Orionis" 56 white-white-white triple (double plus one) in field with Sigma Orionis Sigma Orionis Orion Multiple Star "3.7, 8.8, 6.6, 6.3" "11"", 13"", 41""" 3 3 1 steady high 5 H 38.7 min. -2¡ 36' "quadruple star, with Struve 761" 56 quadruple star: all white - in field with Struve 761 "Beta Orionis, Rigel" Orion Double Star "0.3, 6.8" "9.3""" 3 x x steady high 5 H 14.5 min. -8¡ 12' one of the Orion Dob doubles 58 a delightful Dob challenge due to the huge brightness difference Eta Orionis Orion Double Star "3.6, 4.9" "1.8""" 3 x x steady high 5 H 24.5 min. -2¡ 24' one of the Orion Dob doubles 58 close yellow-blue pair 32 Orionis Orion Double Star "4.4, 5.7" "1.2""" 3 x x steady high 5 H 30.8 min. 5¡ 57' one of the Orion Dob doubles 58 very close yellow-blue pair "Delta Orionis, Mintaka" Orion Double Star "2.2, 6.8" "53""" 3 x x steady high 5 H 32 min. 0¡ 20' one of the Orion Dob doubles 58 "wide, unequal white-blue pair" "Lambda Orionis, Meissa" Orion Double Star "3.5, 5.4" "4.1""" 3 x x steady high 5 H 35.1 min. 9¡ 56' one of the Orion Dob doubles 58 bright white-white pair 42 Orionis Orion Double Star "4.6, 7.5" "1.1""" 3 x x steady high 5 H 35.4 min. -4¡ 50' one of the Orion Dob doubles 58 very close and unequal white-white pair near M42 - very challenging "Zeta Orionis, Alnitak" Orion Double Star "1.9, 3.7" "2.5""" 3 x x steady high 5 H 40.8 min. -1¡ 59' one of the Orion Dob doubles 58 "close, blue-white pair" 52 Orionis Orion Double Star "6.0, 6.0" "1.1""" 3 x x steady high 5 H 48 min. 6¡ 27' one of the Orion Dob doubles 58 "very close, equal white-white pair" "Omicron-2 Eridani, Keid" Eridanus Double Star "4.5, 10.2, 11.5" "83"", 7""" 2 1 x steady high 4 H 15.3 min. -7¡ 39' Spock's 'Vulcan' & a white dwarf 60 "B-C pair is far from A: B is a white dwarf and C is ared dwarf, too dim to show color" NGC 1535 Eridanus Planetary Nebula 9.6 0.8' 2 1 x dark high 4 H 14.3 min. -12¡ 44Õ' planetary nebula in Eridanus 60 "small, blue planetary nebula" 39 Eridani Eridanus Double Star "5.0, 8.5" "6.3""" 1 1 x steady high 4 H 14.4 min. -10¡ 15' double star near NGC 1535 60 moderately challenging double h 3752 Lepus Double Star "5.4, 6.6" "3.4""" 1 1 x steady high 5 H 22.5 min. -24¡ 46' double star near M79 62 M79 Lepus Globular Cluster 7.7 9' 2 1 x dark medium 5 H 24.2 min. -24¡ 31' globular in Lepus 62 globular cluster; intermediate concentration M45 Taurus Open Cluster 1.6 120' 3 3 4 any lowest 3 H 46.9 min. 24¡ 7' the Pleiades (Seven Sisters) 64 nebulosity near the stars is challenging to see Struve 118 Taurus Double Star "5.8, 6.7" "4.4""" 1 1 x steady high 5 H 29.3 min. 25¡ 9' near M1 66 yellow-white pair near M1 Struve 742 Taurus Double Star "7.1, 7.5" "4.1""" 2 2 x steady high 5 H 36.4 min. 22¡ 0' near M2 66 dim yellow-blue pair just east of M1 M1 Taurus Supernova Remanent 8.4 4' by 6' 3 1 x dark low 5 H 34.5 min. 22¡ 1' the Crab Nebula 66 remnant nebula from 1054 supernova M38 Auriga Open Cluster 6.4 15' 3 2 1 any low 5 H 28.7 min. 35¡ 51' with M36 & M37 68 open cluster; moderately rich with medium brightness range and strong central concentration M36 Auriga Open Cluster 6 10' 3 2 1 any low 5 H 35.3 min. 34¡ 9' with M37 & M38 68 open cluster; moderately rich with large brightness range and strong central concentration M37 Auriga Open Cluster 5.6 15' 3 2 1 any low 5 H 52.3 min. 32¡ 34' with M36 & M38 68 open cluster; rich with small brightness range and strong central concentration Omega Aurigae Auriga Double Star "5.0, 8.2" "4.8""" 2 1 x steady high 4 H 59.3 min. 37¡ 53' double star near M36-37-38 70 14 Aurigae Auriga Double Star "5, 9, 8, 8" "10"", 14"", 2""" 2 1 x steady high 5 H 15.4 min. 32¡ 41' multiple star near M36 & M38 70 yellow-blue pair; the dimmer blue pair is a Dob challenge - the brighter has a dim companion 26 Aurigae Auriga Double Star "5.5, 8.4" "12""" 1 1 x steady high 5 H 38.6 min. 30¡ 30' double star near M37 70 "yellow-blue pair, between El Nath and M37" NGC 1907 Auriga Open Cluster 8.2 5' 1 x x any low 5 H 28.1 min. 35¡ 19' dim open cluster near M38 71 open cluster; moderately rich with small brightness range and strong central concentration LY Aurigae Auriga Variable 6.66-7.35; 4.00 days 1 1 1 any any 5 H 29.7 min. 35¡ 23' eclipsing variable star near M38 71 M35 Gemini Open Cluster 5.1 25' 3 3 3 any low 6 H 8.8 min. 24¡ 20' great open cluster in Gemini 72 wonderful open cluster; in a Dob look for NGC 2158 nearby NGC 2158 Gemini Open Cluster 8.6 5' 1 x x dark low 6 H 7.4 min. 24¡ 05' "dim open cluster, in field with M35" 73 "open cluster in field with M35; a pleasant, grainy counterpart to its great neighbor" "Eta Geminorum, Propus" Gemini Double Star "3.5, 6.2" "1.7""" 2 x x steady high 6 H 14.9 min. 22¡ 30' double star near M35 73 Dob challenge double brighter star looks orange and dimmer looks colorful by contrast 15 Geminorum Gemini Double Star "6.6, 8.2" "25""" 2 2 x any low 6 H 27.8 min. 20¡ 47' double star near M36 73 "wide, orange-blue pair" NGC 2129 Gemini Open Cluster 6.7 6' 1 x x dark low 6 H 1.1 min. 23¡ 19' with M35 73 open cluster; poor with large brightness range and strong central concentration "Alpha Geminorum, Castor" Gemini Triple Star "1.9, 3.0, 9.8" "4.8"", 70""" 3 2 x steady high 7 H 34.6 min. 31¡ 53' "bright multiple star, with NGC 2392" 74 "very bright, close blue pair with a very dim, distant companion" NGC 2392 Gemini Planetary Nebula 9.1 0.9' 3 2 x dark high 7 H 29.2 min. 20¡ 55Õ' " 'Clown Face' nebula, with Castor" 74 planetary nebula Lambda Geminorum Gemini Double Star "3.6, 10.7" "9.7""" 1 x x steady high 7 H 18.1 min. 16¡ 32' double star near Castor & NGC 2392 75 "yellow-blue Dob double, challenging because of huge brightmess difference" "Delta Geminorum, Wasat" Gemini Double Star "3.6, 8.2" "5.6""" 1 x x steady high 7 H 20.1 min. 21¡ 59' double star near Castor & NGC 2393 75 Dob challence due to unequal brightness; brighter star is white and dimmer star is orange Struve 1083 Gemini Double Star "7.3, 8.1" "6.8""" 2 1 x steady high 7 H 25.6 min. 20¡ 30' double star near Castor & NGC 2394 75 yellow-blue pair Struve 1108 Gemini Double Star "6.6, 8.2" "11""" 1 1 x steady high 7 H 32.8 min. 22¡ 53' double star near Castor & NGC 2395 75 yellow-blue pair Kappa Geminorum Gemini Double Star "3.7, 8.2" "7""" 1 x x steady high 7 H 77.4 min. 24¡ 24' double star near Castor & NGC 2396 75 "challenging, unequal Dob double" NGC 2244 Monoceros Open Cluster 4.8 24' 2 1 1 any low 6 H 31.9 min. 4¡ 56' inside the Rosette 76 open cluster; poor with large brightness range and strong central concentration Rosette Monoceros Diffuse Nebula 6 60' by 75' NW-SE 3 1 1 dark low 6 H 30.3 min. 5¡ 3' huge nebula surrounding NGC 2244 76 "lovely, huge nebula for dark night, with bright open cluster inside" Epsilon Monocerotis Monoceros Double Star "4.4, 6.4" "12""" 1 1 x steady high 6 H 23.8 min. 4¡ 36' double star near the Rosette 77 subtle colors Beta Monocerotis Monoceros Triple Star "4.6, 5.0, 5.3" "7.2"", 2.9""" 3 3 x steady high 6 H 28.8 min. -7¡ 2' bright triple star 78 appealing white-blue-blue triple star; to get there you 'turn left at Orion'!! NGC 2232 Monoceros Open Cluster 4.2 45' 3 3 2 any low 6 H 27.2 min. -4¡ 45' open cluster near Beta Monocerotis 78 open cluster; poor with large brightness range M50 Monoceros Open Cluster 5.9 15' 2 2 1 any low 7 H 2.9 min. -8¡ 20' colorful open cluster in Monoceros 80 open cluster; moderately rich with large brightness range and strong central concentration "Alpha Canis Majoris, Sirius" Canis Major Double Star " -1.4, 8.5" "8.4""" 1 x x very steady highest 6 H 45.1 min. -16¡ 43' extreme Dob binary challenge 81 brightest star in sky; exceptionally tough double for big Dob (second star lost deep in glare) Mu Canis Majoris Canis Major Double Star "7.95.3, 7.1" "3""" 2 x x steady highest 6 H 56.1 min. -14¡ 3' Dob binary challenge 81 "very tough Dob double; extreme brightness contrast, yellow-blue" "Alpha Canis Minoris, Procyon" Canis Minor Double Star "0.4, 10.8" "4.7""" 1 x x very steady highest 7 H 39.3 min. 5¡ 13' extreme Dob binary challenge 81 "very challenging, with hugh brightness contrast" M41 Canis Major Open Cluster 4.5 35' 3 3 2 any low 6 H 47 min. -20¡ 45' open cluster in Canis Major 82 open cluster; moderately rich with large brightness range and strong central concentration M47 Puppis Open Cluster 4.4 25' 3 2 2 any low 7 H 36.6 min. -14¡ 29' bright open cluster; with M46 84 "open cluster; loose and bright, with a dozen stars much brighter than the others" M46 Puppis Open Cluster 6.1 20' 3 2 1 dark low 7 H 41.8 min. -14¡ 49' open cluster; with M47 84 open cluster; partly resolved haze of stars with planetary nebula NGC 2438 in front NGC 2414 Puppis Open Cluster 7.9 6' 1 x x dark low 7 H 33.2 min. -15¡ 27' open cluster near M47 85 open cluster; moderately rich with large brightness range and strong central concentration NGC 2423 Puppis Open Cluster 6.7 12' 1 1 x dark medium 7 H 37.1 min. -13¡ 52' open cluster in field with M47 85 open cluster; moderately rich with medium brightness range NGC 2438 Puppis Planetary Nebula 10.8 1.2' 1 x x any high 7 H 41.8 min. -14¡ 44Õ' planetary in front of M46 85 planetary nebula "Herschel 3945, Winter Albireo" Canis Major Double Star "5.0, 5.8" "26""" 3 2 x any low 7 H 16.6 min. -23¡ 19' colorful double near NGC 2362 86 lovely red-orange double NGC 2362 Canis Major Open Cluster 3.8 6' 3 2 1 any medium 7 H 18.7 min. -24¡ 57' open cluster in Canis Major 86 open cluster; poor with large brightness range and strong central concentration "Epsilon Canis Majoris, Adhara" Canis Major Double Star "1.5, 7.5" "7""" 1 x x steady highest 6 H 58.6 min. -28¡ 58' Dob binary challenge 87 Dob challenge double M93 Puppis Open Cluster 6.2 10' 3 3 1 any medium 7 H 44.5 min. -23¡ 52' open cluster in Puppis 88 open cluster with small brightness range k Puppis Puppis Double Star "4.4, 4.6" "9.8""" 2 2 x steady high 7 H 38.8 min. -26¡ 48' double star near M93 89 cat's-eyes white-white pair