Andromeda in a Single Shot

How far can you see? The Andromeda Galaxy, 2.5 million light years away, is the most distant object easily seen by the unaided eye. Other denizens of the night sky, like stars, clusters, and nebulae, are typically hundreds to thousands of light-years distant. That’s far beyond the Solar System but well within our own Milky Way Galaxy. Also known as M31, the external galaxy poses directly above a chimney in this well-planned deep night skyscape from an old mine in southern Portugal. The image was captured in a single exposure tracking the sky, so the foreground is slightly blurred by the camera’s motion while Andromeda itself looms large. The galaxy’s brighter central region, normally all that’s visible to the naked-eye, can be seen extending to spiral arms with fainter outer reaches spanning over 4 full moons across the sky. Of course in only 5 billion years or so, the stars of Andromeda could span the entire night sky as the Andromeda Galaxy merges with the Milky Way. via NASA

Wikipedia article of the day for June 25, 2021

Wikipedia article of the day is Grevillea juniperina. Check it out: Article-Link Summary: Grevillea juniperina, the prickly spider-flower, is a plant of the family Proteaceae native to eastern New South Wales and south-eastern Queensland in Australia. It is a small prickly-leaved shrub from 0.2 to 3 m (8 in to 10 ft) high, generally growing on clay-based or alluvial soils in eucalypt woodland. Scottish botanist Robert Brown described G. juniperina in 1810, and seven subspecies are recognised. The flower heads (inflorescences) appear from winter to early summer and are red, orange or yellow. Birds visit and pollinate the flowers. G. juniperina plants are killed by bushfire, regenerating afterwards from seed. The species adapts readily to cultivation and has been important in horticulture as it is the parent of many popular garden hybrids. G. j. juniperina, a subspecies restricted to western Sydney and environs, has its habitat threatened by housing development and other factors.