1981A&A...102..245D Received measured Instituto H.A. Key stellar and through the of Measurements Summary. * IT. I. Astron. extragalactic as Traditionally ionized Send possibility spectroscopically. different lines The include to we section. obtaining regions (Dottori, Magellanic Introduction measured distant The CNPq used It In SMC HII the words: by offprint observations Dottori is order association. © Observations the This Astrophys. a ratio a by thus spectroscopy de nights February photoelectrically 1981, calibration reliable photometric respectively. fellows European H of Regions The magellanic and whole Clouds means Fisica, to method II with H requests possible measuring of and the measure regions the from II hereinafter equivalent the regions data emission Since E.L.D. slit continuum 4, equivalent of Universidade or were 102, allows H October of 1980; to: spectroscopy clouds- to and a our of for met~od II (Searle, WH The of WHp. Southern the 245-249 calibration unbiased region determine H.A. and carried nearby in the own Bica* certainly region. Paper to width accepted emission in the age 29 1979 A measure mainly in H which H widths Dottori . H 1971) relation Equivalent radius II of nuclei II Federal (1981) H I). LMC II of equivalent This out to regions regions- II is regions the these eliminates of January May will Observatory from of the regions and WHp biased W to and/or effect of photoelectrically WHp age was the be do emJ.sswn regions that of the 19, of nuclei on of and described of line age- found Rio the obtained such if widths 1980 restricts large embedded the ermss10n 1981 E.L.D. of the the the comes LMC Grande Width of LM the as SMC was with are observed between surface possibility line slit galaxies of those C embedded in in formation Bica and measured elsewhere obtained a • from does emission and H lines the , practice do during 11 Provided areas. of SMC of WH~ next 2 was Sui, H not the the the of of W in II the Av. (B counter observations Table Sect. Sect. (centered of sequence system are in both 16 NGC NGC NGC NGC NGC SL NGC NGC NGC NGC NGC IC IC NGC NGC NGC NGC NGC NGC NGC NGC NGC NGC NGC NGC NGC NGC NGC NGC NGC NGC NGC Hp Luiz the =background, and 1' by listed 1876/4/7/80 1727/2 1936/S/4/7/29 1743/37/45/8 1761/60 1910/SL 1858 1769 1770 1763 553 1970/65/6/2 1968/74 1955/SL 1948 2018 2126/7 2128 371 346 2122 2103 2081 2079/8/83/84 2080/77/85/6 2074 2070 2060 2044 2032/5/40/29 2030 2014 OBJECT III III = the 1. NGC, Emission (den Englert 32s the (30 1.87 device at sky Columns in at 360 456 45-48-48-45. DOR) the according Table Bergh mm 4517 weremadewitha NASA Astrophysics IC and attached REGION N N end N N N N N N N N N N N N N sfn°, N N N N N N N N N N N N N N N N HII or 119 144 lOS 180 159 160 157 1S7 113 1S8 1S7 158 214 2d6 at A) 10 91 79 44 10 10 83 51 51 66 63 48 44 57 55 59 the 76 1. and R SL 1-7 the of The and =region) BR-90000 04hsz1!13 04 04 04 04 OS OS OS OS OS OS 04 OS OS OS OS OS OS OS OS osh32l!'-s OS OS OS OS OS OS OS Line 0102.5 00 o-s foreground R.A. to (Shapley McClure, paragraph 13.4 10.0 57.5 56.8 56.7 54.2 18.4 57.6 36.1 32.2 31.6 27.6 23.0 22.1 42.0 40.3 40.3 4o.o 58.2 39.3 39.0 38.0 35.5 3S.7 26.8 26.0 26.0 49.1 to focal LARGE SMALL are POSITION columns the the The a 50 MAGELLANIC MAGELLANIC explained -6915 -69 -68 -66 -66 ------7219 -69 -69 -66 -66 -67 -68 -67 -66 -67 ------69 -69 - - brightness 48 and DEC. diaphragm plane. 69°23' 68 68 66 69 67°43' 69 69 69 67 71 71 2 13 12 70 em background repeating 15 and 15 56 59 30 03 31 OS 26 12 11 so 30 35 38 06 31 Porto 21 OS OS 28 23 27 45 (centered 25 28 1968). stars. Cassegrain give I b AS1ROPHYSICS Age N CLOUD 3 CLOUD 3 2 2 2 2 2 2 2 2 2 4 4 4 and Lindsay, 3 3 3 3 3 2 2 2 2 2 2 2 2 2 2 2 2 The AS1RONOMY Alegre successively: I The in The 04hszm 04 04 04 04 OS OS OS 04 OS OS of 01 00 0Sh33m 05 OS OS OS OS OS OS OS o-s OS OS OS OS OS OS OS OS R.A. Data of10' Column filters BACKGROUND at 18 13 10 at 57 54 30 30 30 58 03 39 39 38 36 36 36 32 32 28 21 26 26 23' 22 49 42 40 40 40 the Sect. Determination integration observed observations least 4866A) reflector AND 1963) RS, - - - - -68 -68 -65 ------69 -68 -68 -68 -68 -68 -68 -68 -68 -68 -68 - - - - in HII DEC. 68°00' 68 68 65 67 6S 67 70 70 66 66 68 66 12 11 71 71 System II, used the 10 10 30 00 00 30 30 30 30 30 00 45 45 40 so 30 30 00 00 00 oo- 20 20 20 20 20 20 40 40 20 9 Brasil twice region Column catalogues; 1. at order SOURCE NUB* N79E* N91A N79E NSSA* NS9A* N44B* N44B NlOSA NllB* N113D NUB N76 N66 INTENS. N214C* N157A* N157A* N157A N157A* N157A* N214C N160A N1S9A* N1S9A NS9A NS9A* NSSA N157A* NS9A* NSSA* of LINE were H the with the times the II the number and B-R-B include regions end a the DDO ""• 117 189 107 lOS 114 115 180 llS (A) 258 200 268 " scale filter 48 84 87 85 55 61 70 77 76 72 31 30 53 78 48 43 46 77 33 were 8 the 45 of in 2. 1981A&A...102..245D continuum and The in number practically ill. same absorption and adopted al. discussed it doublet ing 246 B mentioned the to that the the way: where signation subsequent function from Clouds and other detected In w; Kurucz known. rx by: Peimbert, = 48 = Hp- takes T;/T nearby Table the (1974) The b) a) a) The d) value c) b) counts ionizing number exp Measurements = 11; formula the at - Harlow, the