Astro Bob: Night Fever under the great disco ball of Hercules
We visit the sumptuous Great Globular Cluster in Hercules, one of the richest star clusters in the northern sky.
Written By:
Bob King for the Duluth News Tribune | 4:06 pm, Jul. 7, 2021 ×
In this Hubble photo, the Hercules Globular Cluster looks like a nighttime metropolis from orbit. M13 glitters with an estimated 300,000 stars. It s located 25,000 light-years from the Earth and spans 145 light-years greater than the distance from Earth to the stars of the Big Dipper. (NASA, ESA, and the Hubble Heritage Team (STScI/AURA)
Sometimes we have no clue what s over our heads. On July nights it s easy to find out. As soon as the sky gets dark (around 10:30-11 p.m. local daylight time) look high up in the southeastern sky for the bright, white star Vega. Vega totally overwhelms its home constellation Lyra the Lyre, a tiny harp made of five faint stars. On the plus side, this luminary makes the grou
Astro Bob: Night Fever under the great disco ball of Hercules
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Astro Bob: Night Fever under the great disco ball of Hercules
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Astro Bob: Night Fever under the great disco ball of Hercules
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