Hello,
I took some images using Astrodon Sloan g' r' i' photometric filters. Can I use Prism to do photometric calibration?
In the Analysis->Photometry->Automatic calibration, I cannot find a catalog that contains sloan magnitudes
Thank you
SDSS photometric calibration
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- Messages : 1269
- Enregistré le : 20 juin 2009, 01:01
Re: SDSS photometric calibration
Have a look at the UCAC4 catalog.
https://irsa.ipac.caltech.edu/data/UCAC4/ucac4.html
From Prism:
From Aladin:
From VizieR:
http://vizier.cds.unistra.fr/viz-bin/Vi ... c.rs=0.004
https://irsa.ipac.caltech.edu/data/UCAC4/ucac4.html
g,r,i from APASS catalog are g',r',i' Sloan filters.UCAC4 is a compiled, all-sky star catalog covering mainly the 8 to 16 magnitude range in a single bandpass between V and R. [...] These data are supplemented by 2MASS photometric data for about 110 million stars and 5-band (B,V,g,r,i) photometry from the APASS (AAVSO Photometric All-Sky Survey) for over 50 million stars.
From Prism:
From Aladin:
From VizieR:
http://vizier.cds.unistra.fr/viz-bin/Vi ... c.rs=0.004
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- Messages : 29
- Enregistré le : 09 août 2021, 10:03
Re: SDSS photometric calibration
Thank you Marc.
So the GRI magnitudes bellow are sloan?
So the GRI magnitudes bellow are sloan?
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- Messages : 1269
- Enregistré le : 20 juin 2009, 01:01
Re: SDSS photometric calibration
Yes I think so