Pleiades over Half Dome
Pleiades over Half Dome
ๆใฏ้ใพใฃใฆๅญๅจใใพใใ็ฉบใงๆใๆๅใชๆใฎ้ใพใใฏใใฌใขใในๆๅฃใงใ่็ผใงใๅฎนๆใซ่ฆใใใจใใงใใๆใใๆๅฃใงใใใใฌใขใในๆๅฃใฏๅฐ็ใใ็ด450ๅ
ๅนดใใ้ขใใฆใใใใ็ด1ๅๅนดๅใซๅฝขๆใใใใใใใใใจ2ๅ5ๅไธๅนดใปใฉๅญๅจใ็ถใใใงใใใใ็งใใกใฎๅคช้ฝใๆๅฃใฎไธญใง่ช็ใใใจ่ใใใใฆใใพใใใ็พๅจใงใฏ็ด45ๅๆญณใจใชใใ่ช็ๆใฎๆใ
ใฏใจใใซๆฃใๆฃใใซใชใฃใฆใใพใใๅ็ใฏใใขใกใชใซๅ่กๅฝใซใชใใฉใซใใขๅทใจใปใใๅฝ็ซๅ
ฌๅใซใใๆๅใชๅฒฉๅฑฑใใใผใใใผใ ใฎไธ็ฉบใซๅใใใฌใขใในๆๅฃใงใใๆฒ่ผใใใฆใใ็ปๅใฏใ2019ๅนด10ๆใฎๅใๅคใซๅใๅ ดๆใใๅใใซใกใฉใงๆฎๅฝฑใใใใๅๆฏใๆใใ28ๆใฎ็ปๅใจๆ็ฉบใฎ่ๆฏใๆใใ174ๆใฎ็ปๅใๅๆใใใใฎใงใใใใฌใขใในๆๅฃใจใใผใใใผใ ใๅฐๆฅ็ใซ้ใชใใฟใคใใณใฐใ่จ็ฎใใฆใใๅคฉไฝๅ็ๅฎถใฏใๆใใใใๅ้ปใซ่ฆ่ใใใ่ๆฏใฎ็ฉบใ็ฐๅธธใซๆใใชใฃใใใจใงใ็ด ๆดใใใๆฎๅฝฑๆฉไผใซๆตใพใใพใใใ
ๅๆ๏ผEnglish๏ผ
Stars come in bunches. The most famous bunch of stars on the sky is the Pleiades, a bright cluster that can be easily seen with the unaided eye. The Pleiades lies only about 450 light years away, formed about 100 million years ago, and will likely last about another 250 million years. Our Sun was likely born in a star cluster, but now, being about 4.5 billion years old, its stellar birth companions have long since dispersed. The Pleiades star cluster is pictured over Half Dome, a famous rock structure in Yosemite National Park in California, USA. The featured image is a composite of 28 foreground exposures and 174 images of the stellar background, all taken from the same location and by the same camera on the same night in October 2019. After calculating the timing of a future juxtaposition of the Pleiades and Half Dome, the astrophotrographer was unexpectedly rewarded by an electrical blackout, making the background sky unusually dark.
๏ผผ ใใฎๆๅใๅฎๅฎไปฒ้ใซใทใงใข ๏ผ
ๅฎๅฎใXใงใทใงใข
ยฉ Dheera Venkatraman / APOD