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・ HP IT Management Software
・ HP Jamaica
・ HP Kittyhawk microdrive
・ HP Labs
・ HP LaserJet
・ HP LaserJet 1012
・ HP LaserJet 1020
・ HP LaserJet 2300 series
・ HP LaserJet 2400 series
・ HP LaserJet 4
・ HP LaserJet 4000 series
・ HP LaserJet 5
・ HP LaserJet P3000 series
・ HP Linux Imaging and Printing
・ HP LoadRunner
HP Lyrae
・ HP M-series
・ HP Media Vault
・ HP MediaSmart Connect
・ HP MediaSmart Server
・ HP Memory spot chip
・ HP Mini
・ HP Mini 1000
・ HP Mini 210
・ HP Mini 2140
・ HP Mini 311
・ HP Mini 5103 notebook
・ HP Mobile Center
・ HP Multi-Programming Executive
・ HP Neoview


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HP Lyrae : ウィキペディア英語版
HP Lyrae


HP Lyrae is a star in the constellation Lyra. First noted to be variable in 1935 by Otto Morgenroth of the Sonneberg Observatory, it is a post-asymptotic giant branch (AGB) star that varies by 0.5 magnitude over a period of 70.4 days. The reason for its variability is still a mystery: first catalogued as an eclipsing binary and presumed to be a pair of stars of spectral type A6, however its light curve is consistent with that of an RV Tauri variable in 2002, leading to Graczyk and colleagues to classify it as such in 2002. Calculating its surface temperature at 7700 K, they concluded it was the hottest such variable discovered.〔
==References==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「HP Lyrae」の詳細全文を読む



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