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Astronomy Science data

POSS data

Overview
- POSS data
  1. POSS-I data
  2. POSS-II data
- Kepler data
- Swift data

POSS-II data

POSS-II data is a follow up of the earlier POSS-I data. This was performed the years 1985 to 2000. Now they also added an IR channel, still film based. One of its purposes was to serve the Hubble Space Telescope with a guide star catalog.

It looks to be the same size of the photographic plates, 355 mm x 355 mm dimension.

As I did earlier I made a green channel from the red and blue spectra. But also did some experiment to use the IR channel.

Mount Palomar's Samuel Oschin Telescope From where did these POSS-II data came from? Same telescope as earlier, but now upgraded in some parts, you can get more information here: Samuel Oschin Telescope Below you see what images I have processed, click on the images and get more information:

Messier 1 Crab Nebula	Messier 13 Hercules Globular Cluster	Messier 31 Andromeda Galaxy	Messier 42 Orion Nebula

Messier 45 Pleiades
Images from POSS-I plates, credits: STScI Image processing by Lars Karlsson

Conclusion:

The dynamic range is better with the POSS-II data compared with the older POSS-I data. With POSS-II data there not only red and blue spectra, there are also IR spectra. Very handy to use when searching after strong IR radiation objects.

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