Gorgeous Galaxy
In 1995, the majestic spiral galaxy NGC 4414 was imaged by the Hubble Space Telescope as part of the HST Key Project on the Extragalactic Distance Scale. An international team of astronomers, led by Dr. Wendy Freedman of the Observatories of the Carnegie Institution of Washington, observed this galaxy on 13 different occasions over the course of two months.
Images were obtained with Hubble’s Wide Field Planetary Camera 2 (WFPC2) through three different color filters. Based on their discovery and careful brightness measurements of variable stars in NGC 4414, the Key Project astronomers were able to make an accurate determination of the distance to the galaxy.
The resulting distance to NGC 4414, 19.1 megaparsecs or about 60 million light-years, along with similarly determined distances to other nearby galaxies, contributes to astronomers’ overall knowledge of the rate of expansion of the universe. The Hubble constant (H0) is the ratio of how fast galaxies are moving away from us to their distance from us. This astronomical value is used to determine distances, sizes, and the intrinsic luminosities for many objects in our universe, and the age of the universe itself…
(read more: Wired Science)
Image: The Hubble Heritage Team (AURA/STScI/NASA) [high-resolution]
Caption: Hubble Heritage Team
  1. everythingisintheworks reblogged this from rhamphotheca
  2. exist--strategy reblogged this from rhamphotheca
  3. worldofproduct reblogged this from thenotionclub
  4. thenotionclub reblogged this from rhamphotheca
  5. nasalgrace reblogged this from vzcv
  6. tommizzy reblogged this from rhamphotheca
  7. desplieguedeesplendor reblogged this from sounds-of-the-morning-sun
  8. leonerdnimoy reblogged this from rhamphotheca
  9. earthrisespace reblogged this from rhamphotheca
  10. sleepyheathen reblogged this from rhamphotheca
  11. onarosewithalice reblogged this from rhamphotheca
  12. calyma26 reblogged this from rhamphotheca
  13. maxyendall reblogged this from rhamphotheca
  14. lovelyuniversee reblogged this from rhamphotheca
  15. sraee reblogged this from rhamphotheca
  16. roguexangel reblogged this from rhamphotheca
  17. satanichoodrat reblogged this from meetovertheskyline
  18. chescaacakes reblogged this from meetovertheskyline
  19. mfzb60 reblogged this from rhamphotheca
  20. brokebackvalley reblogged this from rhamphotheca
  21. sheerdeer reblogged this from vivianaaraceli
  22. ukulele-ry reblogged this from rhamphotheca
  23. rowdysilhouettes reblogged this from jewelsmax
  24. ahandsomestark reblogged this from rhamphotheca
  25. nickagg11 reblogged this from rhamphotheca and added:
    #grrogs
  26. romawidewi reblogged this from rhamphotheca