A question regarding the B-V measurements of stars

AI Thread Summary
The discussion centers on obtaining B-V measurements for stars in the Owl Nebula, where only V magnitude data is readily available. B and V filters measure different wavelengths, with B-V indicating the star's color and temperature. Users can typically find B-V values for individual stars in various astronomical databases. Additionally, there are guides available that help interpret and convert between different photometric systems. Accessing these resources can aid in calculating the desired measurements for the Owl Nebula's stars.
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I've been looking up some information regarding the Owl Nebula, in order to make some calculations of my own. I've only been able to find the V magnitude or the general magnitude of the nebula as a whole. Is there any way to find the B magnitude or the B-V measurement of the star, given what data I might be able to scrounge up online?

Any help is appreciated.
 
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Rumor said:
I've been looking up some information regarding the Owl Nebula, in order to make some calculations of my own. I've only been able to find the V magnitude or the general magnitude of the nebula as a whole. Is there any way to find the B magnitude or the B-V measurement of the star, given what data I might be able to scrounge up online?

Any help is appreciated.

B & V are different filters, with the difference of the two (B-V) being a measure of the redness of the object in question - thus red dwarfs have positive B-V values. Pick a star and generally there will be a B-V value for it somewhere in the data. There's also guides which explain and interconvert the different filter systems in use - confusingly, there are many!
 

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