|Society for Popular Astronomy
|My webpage with 50 red stars
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|Author:||coldfieldboundary [ Wed Oct 12, 2011 8:30 pm ]|
|Post subject:||My webpage with 50 red stars|
hello, it's in a year now I observed them, I searched for obvious red stars, and came to 50. Here again is a webpage written:
|Author:||David Frydman [ Wed Oct 12, 2011 9:10 pm ]|
Thanks for the list.
I know you cannot give an accurate magnitude for these 50 red stars, and you observed them with a 15cm f/8 Newtonian I think, but it would be nice to know which are bright enough to see say in 50mm binoculars or a 80mm spotting scope.
Were they observed from a dark site?
Perhaps you could indicate which are easy in the 15cm or which are binocular or spotting scope stars.
Well done on observing them.
best regards, David
|Author:||JohnM [ Sun Mar 04, 2012 9:07 am ]|
|Post subject:||Red Star Magnitudes|
I have run the list of stars through Simbad and produced a table of magnitudes which I have put on my website at http://www.johnmurrell.org.uk/red-star%20information.htm
I will leave it there until I next have a cleanup to get some more space.
This shows what has been recorded for the magnitudes. The other option is to find the star number on the AAVSO database and then look up the light curve - most of these are variables which is why the magnitudes in the file must be used with caution.
The hyperlinks in the file should take you to the individual star pages on Simbad and then you can use Aladin to plot the field or get an image of the area
|Author:||David Frydman [ Sun Mar 04, 2012 11:22 am ]|
I am not computer literate but I think I can use this as I clicked on a likely binocular star and it was useful.
I will just list the brightest stars and go for them.
Anyway it has been mainly cloudy of late.
|Author:||JohnM [ Sun Mar 04, 2012 12:30 pm ]|
|Post subject:||Revised list|
I have revised the page slightly by adding a B-V colour column as well so you can see how red they are - the larger number indicates they should be redder in case you are not aware.
The page name is the same but you might have to refresh the page or reload it in your browser to see the modified version.
I always find it amazing that the technology allows such things to be done relativly easily. The first part was done while I was drinking my breakfast coffee.
|Author:||JohnM [ Sun Mar 04, 2012 12:37 pm ]|
|Post subject:||Another Red Star list|
The Saguaro Astronomy club have a list of red stars at http://www.saguaroastro.org/content/downloads.htm
You need to click on the heading and then download the ZIP file.
There is an Excel File if you have Office or Open Office else a plain text file in CSV format
Another 300 or so stars to hunt down !
|Author:||David Frydman [ Sun Mar 04, 2012 2:07 pm ]|
Unfortunately John these computer terms are like my trying to understand Chinese script.
Sometimes I manage to find things despite this.
If I find a few red binocular stars O.K.
If not I can always find Mars or aircraft navigation lights. The latter really are red.
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