A moving Antennae Galaxy that isn't a 3D movie?! This is a cute trick, using a popular Hubble image. Try it on your own images!
Fill your computer with some of Hubble's finest images. The Hubble Heritage project is dedicated to finding Hubble's most stunning pictures, and now you can download the entire collection from 1998-2015. http://hubblesite.org/gallery/album/heritage/
The primary goal of the HST program to observe the Veil Nebula was to produce a high resolution mosaic from six overlapping images with WFC3/UVIS. One of the cool things the Hubble Space Telescope can do is operate more than one instrument at a time. We took advantage of this feature by taking exposures with ACS/WFC at the same time to produce a larger mosaic than we could have with either instrument separately in the limited amount of time available. Although there were images in three narrow-band filters with WFC3, used to produce the color composite, we used only one filter (H-alpha) with ACS, so the wider panoramic mosaic is monochrome. In the second image here, the outlines of the exposures are shown on a wider image of the region (from DSS); the WFC3 footprint in blue, ACS in pink.
A new image from Hubble was just released showing a small part of the supernova remnant known as the Veil Nebula or Cygnus Loop. This is a composite of images from five filters. Three narrow-band filters sample the light of hydrogen sulfur and oxygen, assigned the colors red, green and blue respectively in the color composite. This is a little different from the most common way of compositing, where sulfur is assigned red and hydrogen green, in order of the wavelength of the emission. Two additional broad-band filters were used which mostly sample starlight: V band (yellow) and I band (red and near infrared).
Lots more information on this at http://heritage.stsci.edu/2015/29/ and http://hubblesite.org/newscenter/archive/releases/2015/29/
Hubble Inspired: To our amateur friends, was anyone inspired by our January 2015 release of M16 and our April 2015 release of Westerlund 2 to visit or revisit these objects with your telescopes? We understand that not everyone can have access to infrared data, but show us the goods anyway.
Westerlund 2/Gum 29
The newest image from the Hubble Space Telescope (http://hubblesite.org/newscenter/archive/releases/2015/12/), commemorates an extraordinary 25 years in space for the legendary observatory. This is the star cluster Westerlund 2 and a portion of the surrounding starforming region Gum 29. It's a composite of observations from two HST programs, a single field using two filters from ACS/WFC and from WFC3/IR and another more recent program to produce a 3x3 mosaic one using ACS/WFC. The central tile in the mosaic combines the ACS images F555W (blue), F814W (green) with the WFC3/IR F125W (red). The outer portion includes the ACS images F555W in blue and F814W in red, with the average of the two in green. These two composites were blended with a smooth transition.
Enjoy Hubble's 25th anniversary image, everyone!
Happy 25th anniversary to the Hubble Space Telescope!
The brilliant tapestry of young stars flaring to life resemble a glittering fireworks display in this ann...iversary NASA Hubble Space Telescope image to commemorate a quarter century of exploring the solar system and beyond since the telescope's launch on April 24, 1990.
The sparkling centerpiece of Hubble's silver anniversary fireworks is a giant cluster of about 3,000 stars called Westerlund 2, named for Swedish astronomer Bengt Westerlund, who discovered the grouping in the 1960s. The cluster resides in a raucous stellar breeding ground known as Gum 29, located 20,000 light-years away from Earth in the constellation Carina.
To capture this image, Hubble’s Wide Field Camera 3 pierced through the dusty veil shrouding the stellar nursery in near-infrared light, giving astronomers a clear view of the nebula and the dense concentration of stars in the central cluster. The cluster measures between 6 to 13 light-years across.
The giant star cluster is only about 2 million years old and contains some of our galaxy's hottest, brightest, and most massive stars. Some of its heftiest stars unleash torrents of ultraviolet light and hurricane-force winds of charged particles that etch at the enveloping hydrogen gas cloud.
The nebula reveals a fantasy landscape of pillars, ridges, and valleys. The pillars, composed of dense gas and thought to be incubators for new stars, are a few light-years tall and point to the central star cluster. Other dense regions surround the pillars, including reddish-brown filaments of gas and dust.
Well, it's sure been a while since we have posted here, but we would like to restart the discussion. We expect to begin posting more about producing Hubble images, and we are happy to answer questions related to processing them. We also encourage anyone to post the results of your processing.
A non-technical article at space.com about making Hubble images.
An explanation of making Hubble's color image of Comet ISON.