Attēls:NGC 4414 (NASA-med).jpg - Vikipēdija

# Attēls:NGC 4414 (NASA-med).jpg

### Vikipēdijas raksts

- Attēls
- Attēla hronoloģija
- Attēlu saites

Size of this preview: 726 × 599 pixel
Image in higher resolution (1730 × 1428 pixel, file size: 2,42 MB, MIME type: image/jpeg)

Šis fails ir no Wikimedia Commons. Skat. attēla apraksta lapu.

Description | 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. In 1999, the Hubble Heritage Team revisited NGC 4414 and completed its portrait by observing the other half with the same filters as were used in 1995. The end result is a stunning full-color look at the entire dusty spiral galaxy. The new Hubble picture shows that the central regions of this galaxy, as is typical of most spirals, contain primarily older, yellow and red stars. The outer spiral arms are considerably bluer due to ongoing formation of young, blue stars, the brightest of which can be seen individually at the high resolution provided by the Hubble camera. The arms are also very rich in clouds of interstellar dust, seen as dark patches and streaks silhouetted against the starlight. ID: GPN-2000-000933 Other ID: PR99-25
Source | http://nix.larc.nasa.gov/info;jsessionid=1sl2so6lc9mab?id=GPN-2000-000933&orgid=12
Date | 1995
Author | NASA Headquarters - Greatest Images of NASA (NASA-HQ-GRIN)

Permission

| This file is in the public domain because it was created by NASA and the European Space Agency. Hubble material is copyright-free and may be freely used as in the public domain without fee, on the condition that NASA and ESA is credited as the source of the material. The material was created for NASA by STScI under Contract NAS5-26555 and for ESA by the Hubble European Space Agency Information Centre. [1] or [2]. |

This category is part of the category scheme space travel.

## Attēlu saites

Attēls ir izmantots šajās lapās:

- Galaktika

Saturs iegūts no "http://lv.wikipedia.org../../../n/g/c/Att%C4%93ls%7ENGC_4414_%28NASA-med%29.jpg_5784.html"

##### Views

- Attēls
- Diskusija
- Pašreizējā versija

##### Meklēt