- Orion Arm
The Orion Arm is a minor
spiral arm of theMilky Way galaxy. TheSolar System andEarth are within the Orion Arm. It is also referred to as the Local Arm, the Local Spur or the Orion Spur.The Orion Arm is named for its proximity to the stars in the
Orion constellation . It is located between theSagittarius Arm and thePerseus Arm , two of the four major arms of the Milky Way. Within the Orion Arm, the solar system and Earth are located close to the inner rim in theLocal Bubble , approximately 8000parsec s (26,000light-year s) from thegalactic center .The Orion arm contains a number of
Messier objects :
*TheButterfly Cluster (M6)
*ThePtolemy Cluster (M7)
*Open Cluster M23
*Open Cluster M25
*TheDumbbell Nebula (M27)
*Open Cluster M29
*Open Cluster M34
*Open Cluster M35
*Open Cluster M39
*Winnecke 4 (M40)
*Open Cluster M41
*TheOrion Nebula (M42)
*The De Mairan's Nebula
*TheBeehive Cluster (M44)
*The Pleiades (M45)
*Open Cluster M46
*Open Cluster M47
*Open Cluster M48
*Open Cluster M50
*TheRing Nebula (M57)
*Open Cluster M67
*M73
*TheLittle Dumbbell Nebula (M76)
*Diffuse Nebula M78
*Open Cluster M93
*TheOwl Nebula (M97)Clickable maps
)
rect 126 149 188 182
Rosette Nebula rect 285 116 327 145Crab Nebula rect 243 245 284 274Orion Nebula rect 299 288 345 312Trifid Nebula rect 343 304 384 333Lagoon Nebula rect 393 322 434 353Omega Nebula rect 445 322 494 353Eagle Nebula rect 424 244 483 280North America Nebula rect 293 248 319 266Rigel rect 225 179 299 246The Three Kings rect 331 211 368 234Polaris rect 318 236 353 259Sun poly 302 176 303 241 315 242 361 177Betelgeuse rect 419 222 458 245Deneb poly 0 123 508 118 637 160 637 217 470 163 0 178Perseus arm poly 2 202 460 201 633 261 637 326 408 260 1 258Orion arm poly 1 284 397 293 633 360 637 477 541 475 357 413 0 400Sagittarius Arm desc bottom-left
)
rect 396 142 447 173
Rosette Nebula rect 376 230 426 258Seagull Nebula rect 463 264 501 292Cone Nebula rect 528 284 576 322California Nebula rect 695 117 741 149Heart Nebula rect 461 301 494 339Orion Nebula rect 691 154 739 182Soul Nebula rect 568 371 625 405North America Nebula rect 643 366 687 402Cocoon Nebula rect 688 392 761 429Gamma Cygni Nebula rect 594 404 625 444Veil Nebula rect 513 541 550 578Trifid Nebula poly 676 435 690 435 692 427 723 429 726 461 677 461Crescent Nebula rect 489 597 543 630Lagoon Nebula rect 555 592 595 626Omega Nebula rect 574 646 614 689Eagle Nebula rect 444 633 500 678Cat's Paw Nebula rect 90 502 161 529Eta Carinae Nebula rect 442 37 491 69Crab Nebula rect 517 158 547 175Messier 37 rect 527 172 559 190Messier 36 rect 533 191 563 208Messier 38 rect 408 257 434 280Messier 50 rect 327 232 357 257Messier 46 rect 422 285 454 302Messier 67 rect 553 321 582 338Messier 34 rect 433 305 461 321Messier 48 rect 409 314 435 330Messier 41 rect 425 328 456 345Messier 47 rect 474 343 500 365Messier 44 rect 502 345 528 368Messier 45 rect 542 378 568 399Messier 37 rect 714 285 748 308Messier 52 rect 352 285 379 308Messier 93 rect 489 421 513 444Messier 7 rect 495 452 518 473Messier 6 rect 522 456 549 476Messier 25 rect 512 478 539 500Messier 23 rect 531 575 555 593Messier 21 rect 556 564 589 580Messier 18 rect 605 598 640 617Messier 26 rect 630 618 654 639Messier 11 rect 484 234 510 256Messier 35 rect 287 248 316 276NGC 2362 rect 370 359 411 381IC 2395 rect 359 413 390 449NGC 3114 rect 407 396 444 432NGC 3532 rect 594 356 644 372IC 1396 rect 458 392 502 406IC 2602 rect 407 494 443 521NGC 6087 rect 437 464 472 497NGC 6025 rect 262 478 300 506NGC 3766 rect 513 427 554 451NGC 4665 rect 181 445 226 472IC 2581 rect 212 506 257 526IC 2944 rect 213 565 246 598NGC 4755 rect 128 463 154 494NGC 3293 rect 362 591 392 628NGC 6067 rect 404 548 437 587NGC 6193 rect 425 595 453 630NGC 6231 rect 461 556 498 585NGC 6383 rect 58 506 91 521Tr 14 rect 77 520 108 536Tr 16 rect 797 130 831 153Messier 103 rect 665 408 691 434Messier 29 rect 746 139 782 157hPer rect 763 117 804 132chi Per rect 152 485 194 500Col 228 rect 456 377 492 393o Vel poly 0 0 496 0 841 130 976 221 972 421 633 224 277 129 5 111Perseus Arm poly 2 230 444 239 688 340 970 495 971 639 559 452 317 387 1 380Orion Arm poly 2 481 423 492 694 606 922 757 470 761 234 669 1 668Sagittarius Arm rect 879 666 965 684Star Cluster rect 878 684 944 699Nebula desc bottom-left
ee also
*
Gould Belt
*List of Messier objects
*List of nearest stars External links
* [http://www.seds.org/messier/more/mw_m.html Messier Objects in the Milky Way (SEDS)]
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