Re: [Numpy-discussion] Finding Star Images on a Photo (Video chip) Plate?

Thanks for the info. By, DIY I mean borrowing only what seems necessary to get started. For example the FORTRAN code that I mentioned, I suppose the opposite of this is trying to understand what's going on by trying to learn some library of functions that go far beyond my needs. Sort of just g

Re: [Numpy-discussion] Finding Star Images on a Photo (Video chip) Plate?

One can also try to use photometry software like Daophot, it uses MIDAS by ESO http://www.eso.org/sci/data-processing/software/esomidas// , which everyone can download. It seems that Daophot http://www.star.bris.ac.uk/~mbt/daophot/ isn't for free :-(, I never cared, since it's installed on our ins

Re: [Numpy-discussion] Finding Star Images on a Photo (Video chip) Plate?

Good. I'll latch onto them (bookmark) them soon. I like the organic description. On 5/29/2010 12:09 PM, Pauli Virtanen wrote: > Sat, 29 May 2010 11:29:56 -0700, Wayne Watson wrote: > [clip] > >> SciPy. Hmm, this looks reasonable.. >> Somehow I missed it and i

Re: [Numpy-discussion] Finding Star Images on a Photo (Video chip) Plate?

I have used sextractor in the past : http://terapix.iap.fr/rubrique.php?id_rubrique=91/ Johann On 05/29/2010 08:29 PM, Wayne Watson wrote: > I managed to find some FORTRAN code that is relevant. Algorithms for CCD > Stellar Photometry,K. Mighell, Kitt Peak, >

Re: [Numpy-discussion] Finding Star Images on a Photo (Video chip) Plate?

Sat, 29 May 2010 11:29:56 -0700, Wayne Watson wrote: [clip] > SciPy. Hmm, this looks reasonable. . > Somehow I missed it and instead landed on > , which looks > fairly imposing. Those are tar and gzip files. T

Re: [Numpy-discussion] Finding Star Images on a Photo (Video chip) Plate?

On 5/28/2010 9:16 PM, David Goldsmith wrote: On Fri, May 28, 2010 at 8:31 PM, Anne Archibald wrote: On 28 May 2010 23:59, Wayne Watson wrote: > That opened a few avenues. After reading this, I went on a merry search with > Googl

Re: [Numpy-discussion] Finding Star Images on a Photo (Video chip) Plate?

I managed to find some FORTRAN code that is relevant. Algorithms for CCD Stellar Photometry,K. Mighell, Kitt Peak, . He discusses PSF and provides a few "starter" programs, centroid and peak determination. He discusses sky background (,

Re: [Numpy-discussion] Finding Star Images on a Photo (Video chip) Plate?

On Fri, May 28, 2010 at 8:31 PM, Anne Archibald wrote: > On 28 May 2010 23:59, Wayne Watson wrote: > > That opened a few avenues. After reading this, I went on a merry search > with > > Google. I hit upon one interesting book, Handbook of CCD astronomy (Steve > B. > > Howell), that discusses PSFs

Re: [Numpy-discussion] Finding Star Images on a Photo (Video chip) Plate?

On 28 May 2010 23:59, Wayne Watson wrote: > That opened a few avenues. After reading this, I went on a merry search with > Google. I hit upon one interesting book, Handbook of CCD astronomy (Steve B. > Howell), that discusses PSFs. A Amazon Look Inside suggests this is mostly > about h/w. I tried

Re: [Numpy-discussion] Finding Star Images on a Photo (Video chip) Plate?

That opened a few avenues. After reading this, I went on a merry search with Google. I hit upon one interesting book, Handbook of CCD astronomy (Steve B. Howell), that discusses PSFs. A Amazon Look Inside suggests this is mostly about h/w. I tried to figure out how to reach the scipy mail list,

Re: [Numpy-discussion] Finding Star Images on a Photo (Video chip) Plate?

On 28 May 2010 21:09, Charles R Harris wrote: > > > On Fri, May 28, 2010 at 5:45 PM, Wayne Watson > wrote: >> >> Suppose I have a 640x480 pixel video chip and would like to find star >> images on it, possible planets and the moon. A possibility of noise >> exits, or bright pixels. Is there a know

Re: [Numpy-discussion] Finding Star Images on a Photo (Video chip) Plate?

On Fri, May 28, 2010 at 5:45 PM, Wayne Watson wrote: > Suppose I have a 640x480 pixel video chip and would like to find star > images on it, possible planets and the moon. A possibility of noise > exits, or bright pixels. Is there a known method for finding the > centroids of these astro objects?

[Numpy-discussion] Finding Star Images on a Photo (Video chip) Plate?

Suppose I have a 640x480 pixel video chip and would like to find star images on it, possible planets and the moon. A possibility of noise exits, or bright pixels. Is there a known method for finding the centroids of these astro objects? -- Wayne Watson (Watson Adventures, Prop., Ne