In astronomy, an open cluster family is a group of approximately coeval (age range 30 Myr) young open star clusters located in a relatively small region of the Galactic disk (radius 250 pc).
Read more about Open Cluster Family: Introduction, See Also
Famous quotes containing the words open, cluster and/or family:
“Outside the open window
The morning air is all awash with angels.
Some are in bed-sheets, some are in blouses,
Some are in smocks: but truly there they are.”
—Richard Wilbur (b. 1921)
“the green hells of the sea
Where fallen skies and evil hues and eyeless creatures be;
On them the sea-valves cluster and the grey sea-forests curl,
Splashed with a splended sickness, the sickness of the pearl;”
—Gilbert Keith Chesterton (1874–1936)
“Wherever the citizen becomes indifferent to his fellows, so will the husband be to his wife, and the father of a family toward the members of his household.”
—Karl Wilhelm Von Humboldt (1767–1835)