星系、恆星和塵埃
Galaxies, Stars, and Dust

來源:Robert Eder|發表日期:2025-08-28
這架望遠鏡的視場覆蓋了天空中的滿月,朝向高飛的飛馬座。當然,較亮的恆星會出現衍射尖峰,這是反射望遠鏡中常見的內部支撐效果,而且位於我們銀河系內。微弱但無處不在的星際塵埃雲漂浮在銀河平面之上,微弱地反射著銀河系的星光。它們被稱為銀河捲雲或綜合通量星雲,與銀河的分子云有關。事實上,在不到一千光年遠的地方,被編目為MBM 54 的瀰漫雲佈滿了整個場景。看似被塵埃雲纏繞的星系是引人注目的螺旋星系 NGC 7497 。不過它距離我們大約有 6000 萬光年。NGC 7497 的旋臂和塵埃通道與我們銀河系中恆星和塵埃的顏色遙相呼應。
原文:This well-composed telescopic field of view covers over a Full Moon on the sky toward the high-flying constellation Pegasus. Of course the brighter stars show diffraction spikes, the commonly seen effect of internal supports in reflecting telescopes, and lie well within our own Milky Way galaxy. The faint but pervasive clouds of interstellar dust ride above the galactic plane and dimly reflect the Milky Way's starlight. Known as galactic cirrus or integrated flux nebulae they are associated with the Milky Way's molecular clouds. In fact, the diffuse cloud cataloged as MBM 54, less than a thousand light-years distant, fills the scene. The galaxy seemingly tangled in the dusty cloud is the striking spiral galaxy NGC 7497. It's some 60 million light-years away, though. Seen almost edge-on near the center of the field, NGC 7497's own spiral arms and dust lanes echo the colors of stars and dust in our own Milky Way.
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