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RISE HVĚZD Č a S O P Is P R O P Ě S T O V Á N Í a S T R O N O M Ie a P Ř Í B U Z N Ý C H V Ě D

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RISE HVĚZD Č a S O P Is P R O P Ě S T O V Á N Í a S T R O N O M Ie a P Ř Í B U Z N Ý C H V Ě D RISE HVĚZD Č a s o p is p r o p ě s t o v á n í a s t r o n o m ie a p ř í b u z n ý c h v ě d . ftÍD Í Dr. OTTO SEYDL. astronom Státní hvězdárny v Praze. v y d á v á Č e s k á s p o l e č n o s t astronomická v p r a ž e . ROČNÍK XII. /fis V PRAZE 1931. Nákladem České společnosti astronomické v Praze. Tiskem Jednoty československých matematiků a fysiků v Praze-Žižkově. OBSAH. - TABLE DES MATIERES. I. Č lán k y. (Articles.) Bečvář A.: Fotograiie zatmění Měsíce. (Pliotographie de 1'éclipse de la L u n e 1931, IV . 2 . ) ..................................................................................... 112 B o r J.: Zatmění a jeho důležitost pro chronologii a kalendář. (L ’impor- tance des éclipses pour la chronologie.) .................................................... 164 Dittrich A.: Zatměni města Ur. tL'édipse de la ville ďUr.) . 21 — Astronomická složka kultury Mayů. (Astronomie chez les Maya- Indienes.) ............................................................................................................117 Fejtek J.: Fozorování Merkura dvoupalcovým dalekohledem. iLes oDservations de la pláněte Mercure avec le petit télescope.) . 12 Felix V.: Profesor K. V. Zenger...............................................................................46 Gregor A.: Prof. Alfred Wegener ......................................................................137 Quth V.: Pozorujte meteory! (Observez les météores!) ..........................68 — Ú plně zatm ěn í M ěs íce 2. dubna 1931. (L 'é c lip s e de la Lu n e 1931, IV . 2 . ) ................................................................................................................ 1H — Leonidy. (Les Léonides.) ................................................................................. 157 Hrud ička B.: Česká meteorologie na počátku 17. století. (La mé- téorologie en Bohéme au commencement du XVII siěcle.) .... 82 — Astronomie u Tomáše ze Štítného a u M. Pavla Zídka. (L‘Astro­ nomie chez les philosophes tchěques du XIV. et XV. siěcle.) . 160 J. K l e pešta: Osmnáct roků zpět. (line rem iniscence.)........................... 181 Kopal Z.: Proměnná hvězda RR Coronae borealis. (La variable RR Coronae borealis.) ....................................................................................... 49 — Fotografie a proměnné hvězdy. (La photographie et les étoiles variables.) ................................................................................................................85 Nechvíle V.: První fotografie planetoidy Eros. (La premiére photo­ graphie de la planetoide E ro s.) ...................................................................... 41 — Planetoida Eros. (La planetoide E ro s.) .................................................... _=_177 Nováková B.: Pozorování výšky chromosféry a protuberancí. (Les observations de la hauteur de la chromosphěre et des protubé- ra n ces.) .................................................................................................................. 141 — Katalogy vlnových délek spektra slunečního. (Les catalogues des longitudes des ondes du spectre solaire.) ................................................ 179 Rajchl R.: O vypočítávání průměrů stálic. (Les diamětres des ' étoiles fixes.) ........................................................................................................28 — Bukurešfská hvězdárna. (L’obs,ervatoire de B u carest.) .....................77 — Albert Abraham Michelson. (N écrologe.) ................................................ 108 V. R o 1 č ík : Promítání Slunce na Lidové hvězdárně Štefánikově v Praze. (Un appareil pour la projection du Soleil dans 1'observa- toire populaire de la ville de P rah a.) .........................................................184 Sey^dl O.: Vydání Koperníkova díla »De revolutionibus orbium coelestium libri sex« (pozvání k subskripci). (Édition photographique du manuscrit de N. C opernic.) .......................................................................80 — Dnešní stav Mezinárodní fotografické mapy nebes. (L ‘état actuel de la Carte photographique du c ie l.) ........................................................ 168 Schuster F.: Život a dílo astronoma Antonína Strnada. (Astronome Ant. Strnad [1746— 1799], Biographie, avec en extra it.) .....................97 Slouka H.: Anglické hvězdárny'. (Les observatoires ďAngleterre.) 1, 61 V and V.: Nový fotometr Lidové hvězdárny Štefánikovy. (Un nouveau photom ětre.) ............................................................................................................65 II. Drobné zprávy. (Variétés.) Fotogiafie meteoru (16). — O vzdálenosti, rozměrech a prostorovém roz­ ložení otevřených hvězdokup (16). — Třísté výročí úmrtí .lana Kep- lera (17). — Sté výročí narozenin prof. K. V. Zengera (17). — Pro­ jekt prof. Ritchcyho (34). — Rotace Urana a Neptuna, stanovená spektroskopicky (35). — Interstelární absorpce světla (35). — Vztah rychlosti a vzdálenosti mezi mlhovinami rnimogalaktíckými (36). — Planetoida Eros podvojná? (36). — Dvoutisící výročí Vergilova na­ rozeni až letošního roku (36). — Vymoženosti moderní techniky a sluneční zatmění (37). — Přednáška astronoma proí. O. Abettiho v Praze (53). — Mezinárodní rozhlas o stavu důležitých kosmických prvků (54). — Observatoř pro pozorování meteorů (54). — Podivu­ hodná hvězda (54). — K axiální rotaci hvězd (74). — Světelné změny Jupiterových měsíců (92). — Měsíční zatmění z 2. dubna 1931 (92). — Zvířetníkové světlo (93). •— Měřítko originálu I. dílu Atlasu souhvězdí (93). — Enckeova kometa (94).— Neujminova kometa 1913 III. (94).— Kometa Bayerova 1930b (94). — Přednášky prof. Q. Absettiho (114).— Výzva redakce k autorům (115). — Úloha amatérů v astronomii (130).— Jasná kometa Ryves 1931c (131). — Nová hvězdokupa v blízkosti a O rinis a nové útvary v souhvězdí Oriona (131). — Fotografie meteoru (132).— Proměnná hvězda U Cephei (149). — E Aurigae (149). — Nejkratší perioda měnlivé hvězdy (149). — Lund Observátory Círcular (150). — Těleso Schwassmannovo-YVachmannovo rychlého pohybu (150). — Difusní mlhovina IC 405 kolem proměnné ÁE Aurigae (150). — Pa­ řížská observatoř (Observatoire National) bude přeložena (151). — Pražsky' poledník (151). — List na paměf úmrtí Tyge Brahe (151). — Absorpce světla v prostoru mezihvězdném (151). — Studium sluneční korony i mimo okamžiky zatmění (153). — Zelený paprsek (172). — Komety 1931 (172). — Nový časový' signál na krátkých vlnách (173). — Výsledek subskripce na reprodukci Koperníkova rukopisu (173). — Nový astronomický věstník (174). — Hmota planety Pluto (174). — Z činnosti astronom, odboru při Lidové universitě v Plzni (188). — Nový časopis (Coeluin) (189).— Poznámky k pozorování sluneční ko­ rony (189). — Zákryty hvězd Měsícem (190). III. Z hvězdáren a laboratoři. (Nouvelles des observatoires et des laboratoires.) Podrobná spektroíotometrická studie hvězd tříd B, A a F 95 Nové směry v teoretické astrofysice .......................................... 134 Nové přístroje pro Royal Observátory v Greenwiči . 155 Nový fotografický refraktor Leidenské hvězdárny .................... 155 IV. Nové knihy. (Bibliographie.) Mašek B.: Hvězdářská ročenka 1931 .............................................................. 17 Shapley H.: Star Clusters ................................................................................... 18 Crawford R. T.: Determination of orbits of com,ets and asteroids . 18 Stuker P.: Volkstumliche Himmelskunde ...................................................... 18 Hopmann J.: Weltallkunde ............................................................................... 18 Nolke F.: Der Entwicklungsgang unseres Planetensystem s .....................37 Jeans J.: The Mysterious U niverse .................................................................. 37 Olivier Ch. P.: Com ets .......................................................................................38 Zinner E .: D ie G esch ich te d e r S t e r n k u n d e ..................................................38 Moreux A.: Le ciel et Tunivers ...................................................................... 38 Dvacáté století ................................................................................................................55 Novák K.: Atlas souhvězdí severní oblohy, II. d íl ..................................... 55 — Otáčivá mapa severní ob loh y ...................................................................... 56 — Mapa severní obloh y ........................................................................................... 57 Thomas O.: Himmel und W e lt ...........................................................................57 — Eine Dimensionstafel........................................................................................... 58 Arrhenius-Lundmark: Die Sternwelt ..................................................94 Piccardi G.: Ossidi e idruri nelPatmosfera sola re ................................. 94 Gramatzki H. J.: Hilfsbuch der astronomischen Photographie . 133 Olcott W. T.: The Field Book of the skies ................................................ 133 Míiller-Pouilleťs: Lehrbuch der Ph ysik ............................................133 Soják F r.: Ruční broušení parabolických zrca d el ................................. Abetti G.: Osservazioni di protuberance e della cromosfera solare esegu ite nel 1929 ................................................................................................ 154 Payne C. H.: The stars oí high lum inosity ...............................................
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