■Test report of Chinese-made solar telescope③ Hα solar telescope HELIOSTAR-100Hα
Sky-Watcher's new H-alpha solar telescope, the Heliostar 100Hα, has been released. With a large 10cm aperture, the resolving power provided by this large aperture, combined with the adoption of a high-contrast etalon filter, makes it possible to capture even more impressive solar images. Kazuo Shiota, a leading expert in solar photography, will actually photograph the sun with the Heliostar 100Hα and explain the telescope along with the solar images he captured.
■ Observing Jupiter in 2026 Jupiter, shining brightly in the constellation Gemini in the winter night sky, will reach opposition on January 13, 2026, marking the best time for observation. Observations of Jupiter will include observing the shape and density of its stripes, as well as observing its moons. In this article, planetary observer Kuniaki Horikawa explains key points for observing Jupiter in the 2026 season.
■Star Travel: JAXA's Ogasawara Tracking Station Celebrates 50 Years and the Starry Sky of Ogasawara / Editorial Department The Ogasawara Islands are a distant 1,000 km from Tokyo. The only way to reach Chichijima, the gateway to the Ogasawara Islands, is by boat, the Ogasawara-Maru, which takes a full 24 hours. In this tropical setting, Ogasawara offers the Southern Cross, even if it's just above the horizon. Furthermore, its location makes it a frontline observation site, with the JAXA Ogasawara Tracking Station and the National Astronomical Observatory's VERA Ogasawara Observatory located there. This article introduces the starry sky to be seen in Ogasawara, a UNESCO World Heritage Site, and details the commemorative event held at the JAXA Ogasawara Tracking Station, marking its 50th anniversary.
Released 26/01/05
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Astronomy Guide February 2026 Issue | Seibundo Shinkosha Co., Ltd. (seibundo-shinkosha.net)