astronomy
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Coming From Every Here
To answer the question Where are SiriusXM radio stations broadcasted from?, I replied, If you’re wondering where they transmit from, it’s a mix. SiriusXM transmits primarily from a number of satellites placed in geostationary orbit, 35,786 kilometres or 22,236 miles above the equator. From Earth they appear to be stationary. Two of the XM satellites, Continue reading
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The universe is a start-up
“Pillars of Creation” is a live view of stars forming in a neighboring region of the Milky Way. (Inside the Eagle Nebula, 5,400 to 6,100 light years away.) The Solar System, formed 4.6 billion years ago. Earth became a planet .46 billion years later. That was 9.247 billion years after the Big Bang, which happened 13.787 billion years ago, meaning Continue reading
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Venus, Moon, Jupiter and Mercury in the dawn’s early light
Walked out on the front deck this morning and grabbed a photo set of the Moon between conjunctions with Venus (that was yesterday), Jupiter (tonight and tomorrow) and then Mercury (Saturday), before passing next to the Sun as a new moon on Sunday. More about the show at EarthSky. Get up early and check it Continue reading