G2V Colour Calibration

[Shibby]

Hi,

I know that to correct the white balance on a modified camera, you can set the neutral point of your image using a known G2V star. Is this correct?

My question is, is there any relatively easy way to determine which of the stars in an image is of G2V type? I found a list of the brightest G2V stars, but it's very difficult to tell if any of these are in any particular image. For example, I have a recent image of IC 1396 - are any stars near this nebula G2V type?

Thanks

[edit] PS: Once I have a colour balance using a G2v star, can I save these settings and apply them to all future images (presumably the "lighting conditions" are constant from deep space!)

[daz]

Here you go ..

G2V Star Catalog

(something I've been meaning to do myself actually )

[themos]

Go to the simbad query page

SIMBAD: Query by criteria

and enter

sptypes = 'G2' & splum='V'

I got 1391 objects.

Then , go back and select "display" on the radio buttons, top right, and you'll get a long list that can be plotted.

[daz]

Useful link Themos!

[martin_h]

I found this useful - Starizona's Guide to CCD Imaging