New Variable Star (R Libræ), byNorman Pogson, Esq
نویسندگان
چکیده
منابع مشابه
The MACHO Project LMC Variable Star Inventory : IV . New R Coronae Borealis
We report the discovery of two new R Coronae Borealis (RCB) stars in the Large Magellanic Cloud (LMC) using the MACHO project photometry database. The identiication of both stars has been connrmed spectroscopically. One is a cool RCB star (T eff 5000 K) characterized by very strong Swan bands of C 2 and violet bands of CN, and weak or absent Balmer lines, G-band and 12 C 13 C bands. The second ...
متن کاملLuminous Red Variable Star
We report photometry and spectroscopy of the evolution of Nova Sagittarii 1994 #1 (V4332 Sagittarii) during outburst. We compare the photometric and spectral evolution of this outburst to known classes of outbursts – including classical novae and outbursts occurring on symbiotic stars – and find this object does not conform to any known class of outburst. The closest match to the behavior of th...
متن کاملOn the irregular temporal behaviour of the variable star R Scuti
AB S TRACT We comment on the recent results of a temporal analysis of R Scuti, a star of RV Tauri type, presented by Buchler et al. As an alternative approach, we apply the technique of linear state space analysis to describe the irregular temporal behaviour with a linear stochastic process.We find evidence that the variability of R Scuti can be explained by the superposition of two stochastica...
متن کاملVLBI Monitoring Observations of Water Masers Around the Semi-Regular Variable Star R Crateris
[email protected] 2Mizusawa Astrogeodynamics Observatory, National Astronomical Observatory, Mizusawa, Iwate 023-0861 3VERA Project Office, National Astronomical Observatory, Mitaka, Tokyo 181-8588 4Faculty of Science, Kagoshima University, Kagoshima, Kagoshima 890-0065 5Nishi-Harima Astronomical Observatory, Sayo, Hyogo 679-5313 6Nobeyama Radio Observatory, National Astronomical Obs...
متن کاملThe A - r - Star ( ) Pathfinder
This paper presents a variant of the A-Star ( ) pathfinder for robot path planning called (pronounced A-r-Star)and demonstrates that the algorithm outperforms in a uniformly gridded sparse world and gives performance matching that of in a uniformly gridded cluttered world. This algorithm is simple to implement and understand. It alsohighlights the performance advantages of the algorithm and pro...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Astronomische Nachrichten
سال: 1859
ISSN: 0004-6337,1521-3994
DOI: 10.1002/asna.18590490606