Salpeter e w edwin walter (1 resultados)
Más imágenesIdioma: Inglés
Editorial: Vatican Observatory (Specola Vaticana), Vatican City, Italy, 1964
- Tapa blanda
- Primera edición
Librería: Dorley House Books, Inc., Hagerstown, MD, Estados Unidos de AmericaDorley House Books, Inc.
Contactar con el vendedorVendedor de 4 estrellasCondición: Usado - Bueno
EUR 360,87
Envío por EUR 7,58Se envía dentro de Estados Unidos de AmericaCantidad disponible: 1 disponibles
Paperback. Condición: Very Good. 1st Edition. stapled blue printed wraps; 8 clean, unmarked pages; with 16 photographic plates (loose); both in a quatro-folded slipcase; lite sunning but very little wear mostly of which is at the seams/hinges of the slipcase; owner's name on slipcase and booklet. a landmark spectral atlas and ca…talog published by the Vatican Observatory detailing the atomic emission wavelengths (measured in Angströms, of the element thorium. It serves as a highly accurate, universal reference standard for calibrating astronomical spectrographs and laboratory equipment. Because thorium is mono-isotopic and avoids complex hyperfine line splitting, its spectrum produces clean reference points critical for precise astronomical radial velocity and exoplanet searches. 16 b/w photograhic plates, each with three sections of the spectrum. (ilustrador).
