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On the Central Star of the Ring Nebula in Lyra

✍ Scribed by James E. Keeler

Publisher
John Wiley and Sons
Year
1892
Tongue
English
Weight
219 KB
Volume
130
Category
Article
ISSN
0004-6337

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πŸ“œ SIMILAR VOLUMES

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Four minima have been stated and can be interpreted in terms of occulting dust clouds, probably representing dense condensations of the planetary nebula. We derived R = Av1EB-v = 4.0. Photoelektrische UBV-Beobachtungen des Zentralsterns des Planetarischen Nebels NGC 2346, gemessen in 60 Nachten zwis

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Dies ist also ein unvollst2ndiges Integral von (2). Die Gleichungen (3) lauten alsdann Die Gleichungen (I 0 ) lauten : P I

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## Abstract For the derivation of distances and of the density distribution of the RR Lyrae stars in the Sonneberg fields near the north galactic pole (comprising 355 β–‘Β°) we determined their photographic __B__‐brightnesses. The density distribution of the RR Lyrae stars in each of the fields is alm