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Subject Index

Absolute flux determinations AHS in Herbig-Haro objects 209 for Herbig-Haro objects 214 Angular dimensions Absolute radiation, measurements 9 of H20 sources 265 Absorption of OH sources 262,263 continuous 42 Anisotropy in masers 270,282 line 38,41 Anti-inversion 289 molecular 44 Ap phenomenon 129 Absorption coefficient 29,267 origin 132 depth dependence 27 Ap effecti ve 336 magnetic fields 107 for grains 242 magnetosphere 137 f. negative 257 major groups 109 f. Absorption profiles in masers 266 nuclear reactions 132 Abundance anomalies 102 separation of elements 132 Abundance gradients 102 -binary hypothesis 134 Abundances surface spallation 134 definition 102 Ap-type anomalies 132 in CNO stars 119 H. detectability 117 of heavy elements 21 ff. hot boundary in Clog g, log Teff)• in helium stars 81 plane 140 H. in Herbig-Haro objects 220 of population II B stars 129 metal 51 ATLAS, model atmosphere program 15 normal 104 Atmospheric parameters iri O-subdwarfs 83,84 of helium stars 72 in population II B stars 125 ff. A-type stars 149 ff. relative 103 solar 15,104 Backwarming effect 23 in weak-helium-line stars 112 f.,116 Balmer decrement in the spectrum in white dwarfs 177,182 ff. of Herbig-Haro objects 209 139,189,192,306,315 Balmer discontinuity 34,36,37 Acoustic waves 302 in helium stars 68,73,76 Activity, stellar 305,309 in horizontal branch stars 153 358 subject Index

Balmer lines 39,45,303,308 Carbon stars 57 in horizontal branch stars 153 Center to limb variation solar 13 in cosmic masers 270 Be stars 313 solar 8 Binaries 302,314 ff. Central intensities, solar 8 close 302,306,309,310 Central limit theorem 334 X-ray 315 Cepheids 52,53 Birthrate function of helium stars 96 Chandrasekhar limit 195 Birthrate of white dwarfs 189 Chemical composition Black holes 316 of horizontal branch stars 166 ff. Blanketing effect 38 Chemical pumping 287,288,293 in horizontal branch stars 154 , stellar 54,302 ff.,30' by hydrogen lines 151,177 311 in white dwarfs 177,199 Chromospheric Call K2 emission Blocking effect 175 core 231,232 of metal lines in horizontal Chromo spheric emission at branch stars 154,156 radio wavelengths 242,301 ff. Blue halo stars 122 ff. Chromospheric lines, stellar 305,308 Bolometric correction 49 Chromospheric rise, solar Brightness temperature Circumstellar absorption lines 230 fj coronal 304 Circumstellar envelopes 229 ff.,311 of flares 305 density 233,250 of H20 sources 264 expansion velocity gradient 233,231 of OH sources 260 temperature 233 Brightness variations turbulent velocity 233 of HBV 475 314 Circumstellar HII region 313 of Herbig-Haro objects 207 Circumstellar material 189 Broadband photometry 179 Classification as a Herbig-Haro B-type stars, helium-rich 117 object 212 B-V 46 c1 - m1 diagram 150 solar 11 CNO anomalies 119 ff. CNO burning 121 Call CNO stars 118 ff.,142 K emission 53,54,303,307 element abundances 119 ff. K-line flux in Herbig-Haro variability 119 objects 219 CO emission 312,313 K4 absorption 231,232,239 Collisional excitation 218 lines in the spectrum of Herbig-Haro Collisional pumping 287,289,293 objects 209,220 Colors, color indices Carbon abundance in white dwarfs 183,185 extreme-ultraviolet of Carbon enrichment 194 weak-helium-line stars 111 Subject Index 359

of helium stars 68 C/O ratios in white dwarfs 180,183,185 of horizontal branch stars 153 ff. Corona Australis dark cloud 215 solar 11 ff. Coronas UBV 46 f. stellar 54,301 ff. Color diagram 52,53 of supergiants 304 Column densities in cosmic masers 278 Correlation length 328 Compact HI! regions 259 Cristallization in white dwarfs 188 Condensations in Herbig-Haro C-type anomaly 118,121 objects 207,209,215 Cumulants 331 typical diameter of 207 Curve of growth 54 Continuous absorption in cosmic masers 268,281 ff. Damping wings 21,39 Continuous opacity of the solar Debye-temperature 186 atmosphere 14 Densities, in cosmic masers 278 Continuous spectra of Herbig-Haro Density distribution around objects 212 ff. T Tauri 226 interpretation 216 ff. Deutsch's line strength-velocity Continuum correlation 234,237 energy distribution 34 Diffusion 129,130,132,135,142,182,184 solar 13,14 helium convection 136 ultraviolet 36 in helium stars 81,83 Continuum radiation in Herbig-Haro Doppler shifts in the spectra of objects 223 Herbig-Haro objects 212 Convection 51,53,55,139,302,303,307 Dust in horizontal branch stars 152 in cosmic masers 283 of nondegenerate layers 199 in Herbig-Haro objects 223 overshooting 55 Dust clouds, OH emission from 263 velocities 54 Dust shell in white dwarfs 177,317 circumstellar 241 ff.,302,311,312 Convective envelope of radius 243 ff. white dwarfs 192 Convective instability 51,55 EB_V' in Herbig-Haro objects 208,209 Convective mixing 192 Eigenfunctions 346 Convective stars, location in Electrons, fast, in Herbig-Haro Clog g, Teff)-diagram 51,52 objects 223 Cooling age of white dwarfs 199 Electron density near Herbig-Haro Cooling region in Herbig-Haro objects 207,217 ff. objects 225 Electron temperature in Herbig-Haro in supernova remnants 223 objects 207,217 ff.,222 Cooling sequence of Element abundances, see abundances white dwarfs 175,184 Emission, stimulated 257 360 Subject Index

Emission features in helium stars 94 Faraday effect in cosmic masers 285 Emission line intensities of HH 1 Fast rotators 81,95 211 Field horizontal branch stars 149,159 Emission profiles in masers 266 Filling factor of Herbig-Haro Energy distribution objects 207,221 of stellar spectra 55 Fine analysis of helium stars 76 in the spectra of Herbig-Haro Flare stars 302,307 ff. objects 213,225 Flares, stellar 302,305,307,309 surface 21 Flux density 304 Energy level diagram Fokker-Planck equation 342,353 of H20 molecule 292 Forbidden lines in Herbig-Haro of OH molecule 259 objects 208 ff.,217 Energy output, total, of Herbig-Haro [Fe] 209,214 objects 214 [NeIll] 210 Envelope composition of [0] 209,210,223 white dwarfs 191,193 [SIl] 208 ff. Envelopes Fraunhofer lines, solar 14 circumstellar 229 ff.,311 F-type supergiants 249 hydrogen-rich 188 of M giants and supergiants, , budget 194 densities 238 Generalized transfer equation 344 Evolutionary stage of Herbig-Haro formal solution 348 objects 224 ff. numerical integration 349 Evolutionary tracks of Globular clusters 149,163,164,196, helium stars 86 229,252 Evolution H-R diagram 21 of helium stars 84 Grain temperature 243 of T Tauri stars 225 Gravitational redshift 193 Excitation Gravitational separation 135,182,184, collisional 218 192 of Herbig-Haro objects 222 (g, Teff)-classification of Expanding envelopes 263 helium stars 89 Expansion velocity model 237,240 (g, Teff)-diagram of helium stars Extended horizontal-branch 84,85 hypothesis 123 H- 14,27,29,32,34,36 atmo~pheric 2,3 Harman-Seaton sequence 190,197 in Herbig-Haro objects 208,209 Hayashi limit 86 line 5 HCN emission from carbon stars 313 Extreme-ultraviolet fluxes of Helium abundance weak-helium-line stars 116 in CNO stars 119 f. Subject Index 361

in horizontal branch stars 168 H20 sources 263 ff.,288,293 in population II B stars 122 ff. observational data 264 in weak-helium-line stars 110 ff. Horizontal branch 185,187 in white dwarfs 179 Horizontal branch stars 123 ff.,130, HeI discontinuity in helium stars 68,73 141,149 ff.,229,252 Helium burning 121 H-R diagram, of globular clusters 21 Helium enrichment 90 HII regions 259 Helium problem 129 surrounding cool stars 303,311 ff. Helium-rich atmospheres 185 Hydrogen abundance in helium Helium stars 57 ff. stars 72,87 abundances in 65,72,81,87 Hydrogen deficiency in helium Balmer and HeI discontinuities 68,73 stars 57 distribution on the sphere 62 Hydrogen deficient atmospheres 179 emission feature at H 94 a Hydrogen lines 13,39,45 evolution 84,86 Hyperfine splitting in OH molecule 258 extreme subclass 58,59,76,91 galactic distribution 63 (g, Teff)-classification and Induced emission 257,276 89 Infrared emission 311,312 (g, Teff)-diagram 84,85 Infrared excess 311 ff. intermediate subclass 57,58,59,78,91 in Mira variables 261 spectra 66,68 ff. silicate 231,241 ff.,250 statistics of 63 Infrared HeI-triplet 305 variability 93 Infrared lines in OH sources 280,282, velocities 62,64 283 Helium zero age 87 Infrared sources 259 Helmholtz-Kelvin time 252 related to Herbig-Haro Herbig-Haro objects 205 ff. objects 214 ff.,224 central 222 Inhomogeneities in Herbig-Haro observations 206 ff. objects 218,221 theory of 216 Initial mass function 197 H/He ratio 52,53 in helium stars 65 Integrating sphere 5 in white dwarfs 181 Intensity, expectation value 330 High-altitude experiments 1,2,4 Interferometry, VLB 260,264 results of 7 Interlocking states 291 High- population II Intermediate helium stars 95 stars 123 ff.,127 Interstelllar absorption H20 emission 246,257,260,261,309, in the spectrum of Herbig-Haro 312,313 objects 208 H20 molecule 292 Interstellar material 198,311 362 Subject Index

Interstellar medium, mass balance of 254 Macroturbulence 325,340,342 Interstellar scattering 296 Magnetic accretion 135 ff.,142 Ionization,of Herbig-Haro objects time s,\a1e 139 206,207,220,222 ££.,226 Magnetic fields in M giant envelopes 236 in Ap stars 107 by protons, in Herbig-Haro obiects 224 in cosmic masers 285 Irregular variables 312 in weak-helium-line stars 112,116 IR stars 261,262,265 in white dwarfs 181 Magnetosphere of Ap stars 137 f. Kubo-Anderson process 338 Main sequence stars 55 Main sequences 85,86 Lasers 257 Manganese stars 109 ff.,112 ff. Late-type stars 229 £f.,260,261,305 Markov process 342 Lifetimes of helium stars 88 Maser condition 275 Line absorption 38,41 Maser lines 229 Line blanketing Masers 246,257 ff. in peculiar stars 105 unsaturated 268,276,284,295 solar 8 Mass budget of galaxy 194 Line formation Mass exchange in binaries 186,306,309 in continuous velocity fields 341 Mass loss 122,124,129,130,139,140, in discontinuous velocity 186,311 fields 334 f. compilation 248 turbulent 325 ff. dependence on basic stellar Line haze, veiled 14 parameters 247 Line identification for determination 239,241 ff. Herbig-Haro objects 209 formula 249,252 Line opacities, solar 15 in giant stages 195,229 ff.,238,239 Line profiles from hot stars 229 for Herbig-Haro objects 212 mechanisme 251,252 in masers 271,272 of pop. II stars 252 Line ratios in the spectrum of total 253 Herbig-Haro objects 208 Mass-luminosity relation Line spectrum of Herbig-Haro of 187,191 objects 207 Mass-radius relation of Line width in cosmic masers 279,281,284 white dwarfs 185 Luminosity Mass return from stars to the determination of 27 interstellar medium 252 of maser sources 276 Mass transfer 122 of OH sources 261,262 Masses Lyman absorption 21 of helium stars 89 Lyman a line, from a Boo 303 of Herbig-Haro objects 205,225 Subject Index 363

of white dwarfs 197 Oblique rotator 94 Mean intensities, solar 8 Obscured regions 206,208 Meridional circulations 122,139 OH emission 246,257,263,264,309,312, Metal abundances, see abundances 313,317 Metal deficiency factor for OH molecule 288 ff. horizontal branch stars 167 rotational levels of 258,259 Metallic-line stars 136 OH sources 258 ff.,288,313 index 162 observational data 262 Metal-line blanketing type I 258 ff.,264,288,290 in horizontal branch stars 154 type IIa 261,290 23,39,40,54,325,332, type lIb 262,263,264 340,342 Old disk population 123 ff. criterion 332 Old population I 190 in helium stars 95 Optical pumping 287 ff. in horizontal branch stars 152,167 Optical thickness Miller's method 208 of masers 278 Mira variables 244,250,260,261,309,312 of pseudomasers 279 Mixing length 53 Overshooting 55 Model atmospheres 21 ff. of helium stars 69 Paschen continuum 45 solar 13 ff. in horizontal branch stars 153 Molecular lines Paschen discontinuity 36 in stellar atmospheres 44 P Cyg type stars 314 Peculiar B stars 109 ff.,117 f.,121 Peculiar stars NASA high-altitude platform 3 model atmospheres 105 NASA-711 Galileo, experiments ultraviolet line-blanketing 105 aboard 6,10 Photometric indices, c1, m1 150 NASA standard values Physical conditions in Herbig-Haro of solar irradiance 10 objects 223 Nebulae, variable 205,206 Picket fence model 26 Neutral atoms in Herbig-Haro- Planetary nebulae 188 ff.,220,221,253, objects 220 254,302,313,314,317 Neutron stars 315,316 ejection of 195 nondegenerate layers, convection of 199 Planetary nuclei 194 Non-LTE effects 103,107f.,127,131,329 Plasma waves 306 in helium stars 76 Polarization in horizontal branch stars 152 by circumstellar envelopes 245 turbulent line formation 351 f. by dust particles 229 Novae 317 of Herbig-Haro objects 206,214 ff.,224 N-type anomaly 118,121,122 in cosmic masers 285,286 364 Subject Index

Polarization Radial velocities of OH sources 260 of Herbig-Haro objects 212,226 of white dwarfs 317 in OH sources 262 Population densities 273 Radiation pressure 198 Population inversion 257,286 ff. on dust 244 Population I peculiar B stars 109 ff. Radiative transfer Population II, metal-poor (halo) 191 in cosmic masers 266 ff. Population II stars 149 Radio brightness, C, N and 0 relative to Fe 130 of stellar flares 308 Population II B stars, Radio emission Ap-type anomalies 129 from close binaries 309 classification 122 ff. stellar 301 ff. element abundances 125 Radio flares, stellar 307,308,310 evolutionary status 124 ff. Rate equations 352 high luminosity 127 R CrB stars 57,87 (log g, log Teff)-plane 130 Recombination lines, high order 317 original surface composition 130 Recombination time 205 Post-red-giant stages 124 Red degenerates 173,199 Pressure Reddening of Herbig-Haro electron 27,28,30,33 objects 208 ff. gas 27,28,30,33 Reddening correction for Pressure shift 193 horizontal branch stars 154 Pre-T Tauri envelopes 221,224 Redistribution, complete 352 Pre-T Tauri stars 222 Reflected light from Herbig-Haro Probability distributions 341 objects 215,216 Process Reflection model of Herbig-Haro Kubo-Anderson 338 objects 221 Markov 342 Rotation, differential 188 205,260 Runaway stars 142 Pseudomasers 275,294,295 316 Saturation effects Pulsation 53 in masers 272 ff.,295 Pumping Scattering by IR-radiation 290 ff. Rayleigh 21,27,34,35,36,38,44 mechanisms 286 ff. Thomson 21,46 rate in cosmic masers 294 Shock waves route in OH molecules 291 in Herbig-Haro objects 225 by UV-radiation 289 in supernova remnants 223 Silicates 241 ff. Silicate infrared excess 231,242 Quasistationary states 217 Silicon stars 109 ff.,112 ff.,142 Subject Index 365

Sizes 303 of Herbig-Haro objects 205 centrifugal 139 of H20 sources 264 in Herbig-Haro objects 222,225,226 of masers, 269,270,277,282,294 ff. radiation pressure 140 of OH sources 260 Stimulated emission 257,276 Solar constant 1,3,5,14 Strom-Grasdalen hypothesis 208,224 Solar cycle 307 Stromgren color system 175 Solar energy flux Stromgren indices cl , ml 150 Solar irradiance 1 ff. Stromgren photometry 179 NASA standard values 10 'Stromgren sphere' of Call 236 ff. standard values 6 Stromgren-Swihart method 22 Solar neighborhood 191 Sub dwarf B stars 123 ff.,141 mass density 198 spectroscopic definition 123 Solar-type stars 305 0 stars 58,81,93 Solar wind 249,303 element abundances 83 f. Space distribution spectroscopic definition 123 of white dwarfs 198 1 ff. Spectral lines, damping wings 21,39 spectral type of 13 Spectral windows 14 Supergiants Spectrum coronas of 303,304 of helium stars 66 M-type 261 of Herbig-Haro objects 210,211,223 Supernova remnants 223,261 nebular 206 Supernovae 196,229,253 solar 14 Supra-horizontal branch stars 123,124 Source function 267,274 Surface abundance anomalies, Sr-Cr-Eu stars 109 ff. removal 139 Stability, coronal 303 Synthetic spectra of helium stars 72 206 Stark broadening 45 in horizontal branch stars 156 Temperature Statistical equilibrium 217,218, calibration 48 221 chromospheric 303 Stellar cycles 237 computed 23,24 252,311,314 coronal 303,304 CNO burning 121 stratification 23,25,26,55 early phases 205,206,225,226 surface 26 helium burning 121 Theoretical model intensities, mass loss 122,124,129 solar 8 mixing 129 Thermal electron collisions post-red-giant stages 124 in Herbig-Haro objects 216 Stellar flares 305 Thermal emission sources 275 366 Subject Index

Time scales solar 15,17 in Herbig-Haro objects 207,217 -spectra of helium stars 68,69,70 of magnetic accretion 139 IN Cet type stars 302,307 ff. TiO bands 307 Total mass loss from red giants 254 Variables, irregular 312 Variability Transfer equation 267,268,329,352 generalized 344,348,349 of circumstellar absorption Transfer equation, Green's function lines 233,234 solution 333 of CNO stars 119 of flare spectra 306 Transition layer 303,304 of helium stars 93 Transition probabilities of OH lines 258,259 of Herbig-Haro objects 207 of H 0 sources 264 Transition radiation 223 2 of weak-helium-line stars 111,113 ,(5050~) - TR relation 23,25 T Tauri nebulae 205 ff.,222,223,226 Velocity mean square 327 theory of 216 T Tauri stars 205,224 ff.,311 of escape 230,232 Velocity distribution bright IN 214 Gaussian 343 Turbulence 326 ff in cosmic masers 284 in the T Tauri nebula 222 macro 325,340,342 Velocity fields micro 23,39,40,54,325,332,340,342 in cosmic masers 283,284 spectroscopic 327 Velocity parameter 40,46,48 Turbulent eddies 334 of the curve of growth 233,235 Two-color diagram 46,47 VLB-interferometry 260,264 of white dwarfs 175 Two-shell burning stage 187 Weak-helium-line stars 109 ff,141, 142 Type II bursts, stellar 308 element abundances 112 f., 116 extreme-ultraviolet colors 111 extreme-ultraviolet fluxes 116 U-B excess 47 magnetic fields 112,116 UBV P-Ga-subgroup 110 band-passes 12 relationship to Silicon and colors 46 Manganese stars 112 ff. solar broad-band irradiance 11 Si-subgroup 110 uvby photometry of Ti-Sr-subgroup 111 horizontal branch stars 154,155 variability 111,113 IN Weak masers 294,295 -excess of Herbig-Haro objects 213 White dwarfs 173 ff.,229,317 -fluxes 36,38 atmospheres 174,192 -line blanketing in white dwarfs 176 birthrates 189 Subject Index 367

cooling sequence 175,184 A 4135 180 cristallization 188 A 4670 180,183 element abundances 173,182 non-DA 184,191 formation 174,191 Whitford's reddening law 208 envelopes 186,192 Wolf-Rayet stars 314 176 WVir stars 252 hydrogen deficiencies 181 interior 185,188 X-ray emission of flare stars 308 masses 197 X-ray stars 302,315,316 mass-radius relation 185 pulsed 315 White dwarfs, spectral type X-rays, from stellar flares 310 DA 174,184,191 DA-F 178 DB 181 Young stars 205 DC 180,183 DF 182 Zeeman splitting of maser lines 285 DO 179 Zero age main sequence, helium 87 Index of Astronomical Objects

Objects designated by are listed under the name of the constellation. For example, a Lyr is found under the entry Lyra.

ADS 3910 A = Aries HR 1753 114 53 Ari 142 ADS 3910 B = 56 Ari 113 HR 1754 112,114,115 Auriga

Algol = S Per 306,310,316 1; Aur 229,247,248 Andromeda e Aur 106

S And 233,234,241 1t Aur 305,306 RAnd 248 AE Aur 142 Z And 314 Antares A = Barnard 29 127-131 a Sco A 230,235,238,241, BD +1°3129 B = 243,305,306,309 EG 113 179 Antares B = BD +5°2468 = a Sco B 241,243,306 lID 97859 125,131 BD +10°2179 59,60,65,66,68, Aquarius 76,77,82,92,94 S Aqr 38 BD +13°3224 59,60,94 y Aqr 114 BD +16°516 179 E: Aqr 157 BD +25°4655 59,67,81,84,93,96 58 Aqr 155 BD +28°4211 59 Aquila BD +33°2642 127,128,130 y Aql 232 BD +37°442 59,67,68 x Aql 154 BD +37°1977 59,60 R Aql 262,309 BD +39°4926 60,131 RR Aql 265 BD +48°1777 59,60 Ara BD +75°325 59,81,93 Ara X-1 316 BD -1°3438 59,67 Arcturus = a Boo 231,239,252,303 BD -9°4395 59,67 370 Index of AstronomicaZ Objects

Becklin-Neugebauer a Cen = object 242 HI) 125823 94,95,111-117 Betelgeuse = a Ori 230,233,238,239, 3 Cen A 110-113,116,125, 241-245,248,303, 134-136 305,306 Cepheus Bootes a Cep 304 a Boo 231,239,252,303 lJ Cep 241 / Boo 114,115 W Cep 235,238 BPM 23251 = Cetus Wegner No.28 178 ~2 Cet 157

BPM 27606 180,183 11 Cet 115 Burnham's nebula = o Cet = Mira 230,241,246 T Tau nebula 205,210,222,223,226 UV Cet 307,308 Circinus 6 Cir 67 Cancer Corona Borealis

II Cnc 113-115 L CrB 114,115 Canes Venatici CPD -31°1701 59 a2 CVn 114,115 CPD -46°3093 60,67,80,92 Canis Major CPD -69°2698 60,61,65,67,79, n CMa 67 82,91,92 0 2 CMa 120 Crater VY CMa 242,261,262,264, e Crt 157 265,312,313 Cygnus Canis Minor ~ .Cyg 230 a CMi 304 X Cyg 241 YZ CMi = P Cyg 314 Ross 882 308,309 Be Cyg 244,248 Capella = 1,; Aur 229,247,248 V1016 Cyg 314 Carina V1057 Cyg = nCar 214,312 LkHa 190 312 e Car 118,121 NML Cyg 261-263,312,313 Cassiopeia Cyg X-1 316 e Cas 304 Cyg X-3 307,310,316 p Cas 248,249 CC Cas 310 Delphinus Cas A 262 Del 1967 317 Centaurus Draco 11 Cen 67 38 Dra 114,115,125,131 w Cen 124,125,153,196, 46 Dra A 114,115 252 46 Dra B 114,115 Index of Astronomical Objects 371

EG 5 = G 156-64 = EG 178 178 van Maanen 2 180-183,199 Gemini

EG 9 180 CI. Gem 304 EG 11 175 y Gem 157 EG 33 175 11 Gem 230 EG 50 = GS 259-8 59 Hertzspnmg 3 175,178,179 GX 9+1 315 EG 51 175,180 GX 17+2 315 EG 58 = G 111-71 178 EG 62 = L 532-81 178 Haro 14a 213 EG 79 = R 627 178 HEV 475 314 EG 82 182 HD 1909 114,115 EG 86 = H2 21 179 HD 4539 125 , 126 , 129, 131 ,132 EG 93 = HZ 34 179 HD 5045 119 EG 113 = HD 6870 150 BD +1°3129 B 179 HD 7099 119 EG 119 175,180,183 HD 17506 248 EG 122 180 HD 19445 39 EG 124 180 HD 20766 13 EG 129 175,180,181 HD 21699 111 EG 131 175,180,181 HD 30353 58,94 EG 145 183 HD 34452 114,115 EG 148 180-183 HD 35912 114 EG 170 = G 82-23 178 HD 36629 110 EG 178 = G 156-64 178 HD 36960 117 EG 182 175,180,183 HD 37017 58 EG 184 = G 28-13 178 HD 37058 110-112,114,115 EG 187 = L 1336-41 179 HD 37129 110 EG 199 175 HD 37479 59,60 EG 248 180,181 HD 37776 59,66-68,95 EG 250 175,180 HD 37807 110 Eridanus HD 48329 248 40 Eri B 179,197 HD 49798 59,67,68,81,84,93 HD 52382 67 Feige 66 127,132 HD 60344 60,67,80,82,90,91 Feige 86 125,127,129,131 HD 64740 60,67-69,80,82, Feige 92 125,127 91,92,95 HD 73666 114,115 G 28-13 = EG 184 178 HD 82984 110 G 82-23 = EG 170 178 HD 85504 7 Sex 150 G 111-71 = EG 58 178 HD 86986 149,153,159-164~66, 168 372 Index of Astronomical Objects lID 93030 60 lID 188037 230 lID 94705 248 lID 188209 119-121 lID 96248 120,121 lID 201345 120 lID 96446 60,65,67,74,75, lID 205805 125,126,131 78,82,90,91 lID 208606 248 lID 97859 125,131 lID 214539 150 lID 101065 135 lID 214930 142 lID 109995 149,153,159-164, lID 215441 107,113 166,168 lID 216946 248 lID 113001 59,81,84,92,93 lID 221170 232,252 lID 116747 252 lID 264111 60 lID 120640=HR 5206 60,67,80,92 lIDE 260858 59,67 lID 122563 232 Hercules rID 124224 = CU Vir 113 ex Her 236,238,241,244 lID 124448 57,59,60,66-68, ex 1 Her = 77,82,83,92,94 ex Her A 230,248 lID 125823 = a Cen 94,95,111-117 ex 2 Her = lID 127493 59,81,84,92,93 ex Her B 230,233,241 lID 128220 59,67,81,84,93 L Her 65,114,126 lID 133518 60,61,67,80,92 Cjl Her 114,115 lID 135485 65,81,90,91,117 89 Her 248,249 lID 137569 127,128,131 112 Her A 114,115 lID 142301 = 3 SCQ 103,110,111 112 Her B 115 lID 144334 110,111 HZ Her = lID 144661 111 Her X-l 315 lID 144844 110,111 Hertzsprung 3 = lID 144941 60,61,65-67,79, EG 50 175,178,179 82,83,91 HHl 206-215,217, lID 149382 125-127,131,132 219-224,226 lID 160641 59,60,94 HH2 206-209,213,215, lID 161817 130,131,149,152, 217,219,220,224 153,159-164,166,168 HH 2 G 209,210,220,221,2, lID 162374 111 HH 2 H 210,213,214,217, lID 163181 122 220-222,224 lID 165195 232 HH7 215 lID 168476 59,60,66,67,82, HHlO 215 83,92,94 HH 11 212 lID 168733 110,112,114,115 HH 12 215 lID 168785 60,61,64,67,79, HH 24 206,215,216,224 82,91,92 HH 24 A 216 lID 184927 60,61,80,82,91,92 HH 24 E 216 Index of Astponomica~ Objects 373

HH 29 212,213 Lynx HHl00 215 36 Lyn 112 HH 102 217 Lyra HR 465 135 ex Lyr 12,13,114,115,157 HR 1753=ADS 3910 A 114 e Lyr 58,94,310 HR 1754=ADS 3910 B 112,114,115 HR 5206 = HD 120640 60,67,80,92 Ml-ll 314 HR 8535 111 M3 127,153,154 HR 8770 111 M4 = NGC 6121 150, 153, 154 , Hyades 191,195,197 163-165,167 Hydra Ml0 127 n Hya 154 M13 153,154 a Hya 112,114,115 1-33 127 WHya 262 M15 153 HZ 21 = EG 86 179 K 648 191 HZ 34 = EG 93 179 M55 154 HZ 44 59,81,84,92,93 M67 153,154 M92 132,153

Mira = 0 Cet 230,241,246 IRC +10011 262 MWC 120 314 IRC +10216 312 MWC 288 314 MWC 349 313 MWC 957 313 L 532-81 = EG 62 178 L 1336-41 = EG 187 179 Lacerta N49 223 10 Lac 120 NGC 1555 222 AR Lac 310 NGC 1579 312 EV Lac 309 NGC 1999 207,215 Leo NGC 2438 317 ex Leo 157 NGC 6121 = M4 150, 153,154, R Leo 244 163-165,167 AD Leo 309 No. 94 165,166 Lepus No.140 165,166 RLep 241 No.196 165,166 Libra NGC 6334 A 262 T Lib 67 NGC 6397 149,150,153, LkHa 101 312 163-165 LkHa 190 = No.4 163,165 V 1057 Cyg 312 No.26 163,165 374 Index of AstronomicaZ Objects

NGC 6397 R 627 = EG 79 178 No.44 163,165 Ross 882 = YZ CMi 308,309 No.48 163-166 NGC 6712, C 26 127 Nonna Sagitta Nor X-1 316 FG Sge 189,194,195 Sagittarius

\J Sgr 58,94 VX Sgr 242,261,313 ON 2 262 SCOI-pius ON 4 310 ex Sco (A) 230,235,238,241, Ophiuchus 243,305,306,309 6 Oph 233,234,237 ex Sco B 241,243,306 Orion T Sco 67,120,126,128 ex Ori 230,233,238,239, 3 Sco = 241-245,248,303, I-ID 142301 103,110,111 305,306 Sco X-l 315,316 e: Ori 154 Sculptor 1; Ori A 119,120 ex ScI 81,110-116 ~ Ori B 110,112-116,135, Scutum 136 RY Sct 313,314 a Ori E 58,65,68,78,82, Nova Sct 1970 317 83,90-92,94,95 Serpens U Ori 262 Nova Ser 1970 317 FU Ori 312 Sextans V371 Ori 309 7 Sex=1-ID 85504 150 Ori A 265 Sun 1-17,38,82,84, 115,248,303,308,34 Pegasus y Peg 115,126,127,128 Taurus e: Peg 230 ex Tau 232 AG Peg 314 20 Tau 112 Perseus 53 Tau 114,115 ex Per 38 63 Tau 338 13 Per 306,310,316 134 Tau 106 S Per 242 T Tau 205,210,226,311, h+x Per 250 312 Pisces T Tau nebula = 29 Psc 114,115,157 Burnham's nebula 205,210,222,223,22 p Pup 67 NML Tau 265 Index of Astronomica~ Objects 375

Ursa Major CU Vir = yUMa 106 HD 124224 113 \l UMa 230,232 Von Zeipel 1128 127,130,131 WX UMa 307 Vy 2-2 \ 314 Ursa Minor RR UMi 230

W 3 (OH) 262,265,294 W 28 N 262 van Maanen 2 = W 44 261 EG 5 180-183,199 W 49 263 Vega = ex Lyr 12,13,114,115, W 49 A 265 157 Wegner No.28 = Virgo BPM 23251 178 e Vir 157 Wolf 424 309 v Vir 233,234,237 Wolf 630 group 112