Roger
on May 17, 2023
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///@joe.pitman: The galaxies NGC 3185, NGC 3187, NGC 3189, NGC 3190, and NGC 3193 form a visually striking group known as Hickson 44, named after Canadian astronomer Paul Hickson. Located in the constellation Leo, this compact group is approximately 80 million light-years away from Earth.
NGC 3185 is a barred spiral galaxy with well-defined, loosely wound arms. NGC 3187 is a peculiar barred spiral galaxy with faint, patchy arms, lending it a slightly chaotic appearance, possibly due to gravitational interactions with its neighbors.
NGC 3189, less well-known and sometimes omitted in descriptions of the group, is a faint galaxy located near NGC 3190.
NGC 3190 is a dust-laden spiral galaxy seen nearly edge-on, with a subtle central dust lane and tightly wound spiral arms.
Finally, NGC 3193 is an elliptical galaxy, exhibiting the smooth, featureless appearance typical of its class.
To appreciate the distance of 80 million light-years: the light we're currently seeing from these galaxies started its journey when dinosaurs still roamed the earth. Translated into miles, 80,000,000 light-years equates to approximately 470,240,000,000,000,000,000,000 miles.
If you were to attempt walking this distance at a pace of 4 miles per hour, it would take an unimaginable amount of time. Assuming you walked continuously without breaks for sleep, food, etc., here's the calculation:
First, find the number of hours it would take to cover this distance at 4 miles per hour:
470,240,000,000,000,000,000,000 miles ÷ 4 miles/hour = 117,560,000,000,000,000,000,000 hours
Since there are 24 hours in a day and 365.25 days in a year (accounting for leap years), convert this to years:
117,560,000,000,000,000,000,000 hours ÷ 24 hours/day ÷ 365.25 days/year = approximately 13,420,000,000,000,000,000,000 years
So, it would take you about 13.42 sextillion years to walk 80 million light-years. This duration is immensely longer than the current estimated age of the universe, which stands at about 13.8 billion years.
However, this thought experiment doesn't account for the expanding universe, which causes most galaxies to recede from us over time, further increasing the distance.
Sound fun!
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