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| ING Media Archival Record |
| ITEM REFERENCE | 2004 |
| PERMANENT LINK | https://astro.ing.iac.es/outreach/?2004 |
| EXTACCESS | yes |
| TYPE2 | Image archive |
| TITLE | The Most Detailed Catalogue Ever Made of the Visible Milky Way |
| KEYWORDS | Milky Way;High-quality images;La Palma Sky |
| DATE | 2014-09-16 |
| ABSTRACT | A density map of part of the Milky Way disk, constructed from IPHAS data. The scales show galactic latitude and longitude, coordinates that relate to the position of the centre of the galaxy. The mapped data are the counts of stars brighter than 20th magnitude detected in Sloan i, the longer (redder) wavelength broad band of the survey. Although this is just a small section of the full map, it portrays in exquisite detail the complex patterns of obscuration due to interstellar dust. This image contains 600 x 2400 independent data points, each of which represents the star count within 1 x 1 square arcminute cells (1 arcminute is 1/60th of a degree). At the level of the original exposed images, each cell is itself made up of 32,000 pixels. The typical effective angular resolution of the data is close to 1 arcsecond (1/3600th of a degree or about 10 original image pixels). The section shown features the edge of the Sagittarius spiral arm (near longitude 60 degrees) and the Cygnus-X molecular cloud complex (at around 80 degrees longitude). Both of these appear as regions of reduced star counts due to the obscuring effect of higher dust concentrations. |
| CREDIT | Hywel Farnhill (University of Hertfordshire). |
| TELESCOPE | INT |
| INSTRUMENT | WFC |
| RELATED URL | https://www.ing.iac.es//PR/press/iphasMW.html |
| THUMB_75 | 
http://www.ing.iac.es/PR/press/iphas-imap-copper-sqrt3.png |
| THUMB_600 | https://www.ing.iac.es//PR/press/iphas-imap-copper-sqrt1.png |
| FILES | PNG (3.4M) 4500×1350 pixels
PNG (3M) 4882×1264 pixels
PNG (3.3M) 4500×1350 pixels
PNG (2.9M) 4882×1264 pixels |
| TIMESTAMP | 2024-09-01 10:57:39 |
| USAGE | For publication or display (electronic or otherwise), all photos, images or videos must be credited: "Photo/image/video courtesy of the Isaac Newton Group of Telescopes, La Palma" unless otherwise noted in the provided credit line. Please contact ING's Public Relations Officer (outreach  ing.iac.es) with all the details of the use. |
