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Lebid OB2 ce asociaciya OB u yakij roztashovani deyaki z najmasivnishih i najyaskravishih vidomih zirok u tomu chisli jmovirno yaskrava blakitna zminna Lebid OB2 12 Vin takozh vklyuchaye odnu z najbilshih vidomih zirok NML Lebedya 3 Cej region vhodit do shirshogo regionu zoreutvorennya vidomogo yak Lebid X yakij ye odnim iz najyaskravishih ob yektiv na nebi na dovzhinah radiohvil Cej region znahoditsya priblizno v 1570 parsekah vid Zemli v suzir yi Lebedya 4 Lebid OB2Lebid OB2 u svitli H Alpha 3 5 Credit IPHASDani sposterezhennya J2000 0 epoha Pryame shodzhennya 20h 33m 12s 1 Shilennya 41 19 00 Vidstan 5 12 kly 1 570 80 70 pk 2 Vidima zoryana velichina V 6 1Vidimi rozmiri V 60 0 Fizichni harakteristikiOriyentovnij vik Vid 1 do 7 miljoniv rokiv AsociaciyiSuzir ya LebidDivis takozh Rozsiyane skupchennya source source source source source source source Korotkij diktorskij videorolik pro Lebil OB2 9Molode skupchennya ye odnim iz najbilshih vidomih i najbilshim u pivnichnij pivkuli deyaki avtori ranishe klasifikuvali jogo yak molode kulyaste skupchennya podibne do skupchen u Velikij Magellanovij Hmari 5 Odnak sogodni ce vvazhayetsya masivnoyu zoryanoyu asociaciyeyu nizkoyi shilnosti 6 Nezvazhayuchi na te sho vin bilsh nizh u desyat raziv masivnishij za tumannist Oriona yaku legko pobachiti neozbroyenim okom Lebid OB2 prihovanij za masivnoyu hmaroyu pilu vidomoyu yak rozlom Lebedya yakij zakrivaye bagato zirok u nomu Ce oznachaye sho nezvazhayuchi na veliki rozmiri vazhko viznachiti jogo faktichni vlastivosti Ochikuvana kilkist masivnih zirok kolivayetsya vid 50 7 do 100 5 spektralnogo tipu O a yih zagalna masa obchislyuyetsya yak 4 10 104 5 abo 3 104 sonyachnih mas vidpovidno do inshih rozsliduvannya 7 Prominent stars Chislo Shulte 8 MT nomer 8 Insha nazva CPR nomer 9 Spektralnij tip 9 10 Svitnist 9 L Masa 9 10 M HD 195213 11 O7 180300 43 3WR 144 WC4 158500 9 9WR 145 WN7o CE O7V f 371000 18 3WR 146 WC6 O8III 115000 8 WR 147 12 WN8h B0 5V 2000000 51NML Lebedya 13 14 15 M4 5 M7 9Ia III 229000 50V1827 Cyg B17 11 Ofpe 242100 57BD 40 4210 11 B1III e 630000 54BD 40 4223 11 B0Ia 539500 48 3 1 59 O8 5V 120000 26 2 83 16 B1I 40000 14 3 O6IV O9III 346000 gt 17 gt 8 4 217 O7III f 158000 29 5 V729 17 18 O7I O6I O9V 1584000 31 27 9 6 317 O8V 109000 25 7 457 O3If 426000 47 8A 465 19 O6If O5 5III f 501000 44 37 8B 462 O6 5III f 301000 35 8C 483 O5If 371000 42 8D 473 20 O8 5V 48000 20 9 431 18 21 O5 5 5I O3 4III 707000 gt 34 gt 30 10 632 O9 5I 478000 37 11 734 16 O5If 537000 44 12 304 22 B3 4Ia 1230000 110 14 227 O9V 45000 19 15 258 O8V 61000 22 16 299 O8V 83000 23 17 339 O8 5V 61000 21 18 556 B1Ib 338000 29 19 601 B0Iab 186000 26 20 145 O9III 26000 17 21 259 B0 5V 15000 13 22 417 O3If O6V f 660000 50 23 470 O9 5V 26000 17 24 480 O7 5V 104000 25 25 531 O8 5V 97000 24 26 642 B1III 69000 16 27 696 O9 5V B0V 30000 17 29 745 O7V 87000 25 30 793 B1 5III 33000 13 37 358 B3V 3000 7 41 378 B0V 44000 18 51 425 B0V 27000 16 54 395 B1V 7000 10 64 488 B2Ve 23000 12 66 515 B1V 10000 11 70 588 B0V 48000 18 71 646 B1 5V 6000 9 73 O8III O8III 41000 20 74 555 O8V 109000 25 75 736 O9V 31000 18138 11 O8I 88700 26267 A11 11 O7 5III 323000 35448 O6V 107000 29516 16 O5 5V f 707000 52716 O9V 28000 18771 O7V 151000 29A12 11 B0Ia 373300 36A15 O7I 263000 32A20 O8II 380000 35A23 B0 7Ib 263000 26A24 O6 5III 154000 30A25 11 O8III 88700 28A27 B0Ia 426000 35A29 11 O9 7Iab 167500 29 1A32 11 O9 5IV 106700 26 1A36 B0Ib B0III 173000 26A37 11 O5V f 66100 34 8A46 11 O7V f 46600 25 6E47 B0Ia 676000 42IRAS 20321 4009 11 O9 278000 32TYC 3156 998 1 11 OC9 7Ia 516000 34 2Primitki red Ass Cyg OB 2 SIMBAD Centre de donnees astronomiques de Strasbourg Retrieved 2009 12 06 Parker Richard J Crowther Paul A Rate Gemma 2020 Unlocking Galactic Wolf Rayet stars with Gaia DR2 II Cluster and association membership Monthly Notices of the Royal Astronomical Society 495 1 1209 1226 Bibcode 2020MNRAS 495 1209R arXiv 2005 02533 doi 10 1093 mnras staa1290 Schuster M T Marengo M Hora J L Fazio G G 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