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Hubble Panel

Nebulae
Inflating Sh2-308 Hubble Space Telescope (visible) Image of the Crab Nebula Chandra X-ray Observatory (X-ray) Image of the Crab Nebula Very Large Array (radio) Image of the Crab Nebula Spitzer Space Telescope (infrared) Image of the Crab Nebula XMM-Newton (ultraviolet) Image of the Crab Nebula

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Solar and Heliospheric Observatory 2017-06-28T12:13:24Z
Observatorium: SOHO
Instrument: EIT
Sensor: EIT
Messwert: 171

ZITAT DES TAGES

50/7-Wetter
28. Juni 2017, 14:13
Stark bewölkt
Stark bewölkt
21°C
Gefühlte Temperatur: 19°C
Aktueller Luftdruck: 1000 mb
Luftfeuchtigkeit: 70%
Wind: 4 m/s WSW
Böen: 6 m/s
Sonnenaufgang: 05:20
Sonnenuntergang: 21:44
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Leonids Over Monument Valley

There was a shower over Monument Valley — but not water. Meteors. The featured image — actually a composite of six exposures of about 30 seconds each — was taken in 2001, a year when there was a very active Leonids shower. At that time, Earth was moving through a particularly dense swarm of sand-sized debris from Comet Tempel-Tuttle, so that meteor rates approached one visible streak per second. The meteors appear parallel because they all fall to Earth from the meteor shower radiant — a point on the sky towards the constellation of the Lion (Leo). The yearly Leonids meteor shower peaks again this week. Although the Moon’s glow should not obstruct the visibility of many meteors, this year’s shower will peak with perhaps 15 meteors visible in an hour, a rate which is good but not expected to rival the 2001 Leonids. By the way — how many meteors can you identify in the featured image?

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