▽SpaceWeather.com -- News and information about meteor showers, solar flares, auroras, and near-Earth asteroids
●04/11 23:35
speed: 458.3 km/secdensity: 4.04 protons/cm3Updated: Today at 0227 UT6-hr max: C7 1215 UT 24-hr: C7 1215 UT Apr11Updated: Today at: 1430 UTBtotal: 6.91 nTBz: 5.50 nT northUpdated: Today at 0227 UTtoday: m=10.0 (Apr 11.5)

▽星の好きな人のための新着情報
●04/11 08:15
混声合唱組曲｢海の詩｣から『航海』(作詩：岩間芳樹､作曲：廣瀬量平)

▽気象･歳時･防災 ｻﾛﾝ
●04/11 08:05
“七十二候”…『 鴻雁北 (こうがん･かえる)』～13日まで｡9日は『東京都知事選で青島幸男,大阪府知事選で横山ﾉｯｸが当選』の日(1995年)｡

▽国立天文台：ﾄｯﾌﾟﾍﾟｰｼﾞ
●04/10 22:36
2025年4月8日｜国立天文台 水沢企画展｢今もつながる世界各地の緯度観測所｣がはじまりました

▽Astronomy Picture of the Day
●04/10 18:10
Discover the cosmos! Each day a different image or photograph of our fascinating universe isfeatured, along with a brief explanation written by a professional astronomer.2025 April 1038 Hours with the M81 GroupImage Credit & Copyright: Daniel Yang K.Explanation: From a garden on planet Earth, 38 hours of exposurewith a camera and small telescope produced this cosmic photo of the M81 galaxy g