williampme
Affiliation
American Association of Variable Star Observers (AAVSO)
Thu, 05/14/2015 - 23:36
Is it of any value to observe CST stars, or once they have been designated as such there is no need anymore?
The short answer is "No!" - it is not valuable to sepnd your effort monitoring tnem. The longer answer is that there are numerous photometric surveys that record such stars as "by-catch", so they won't actually be lost if they aren't truly constant - but the likelihood - very high, normally - is that they are actually constant and were mis-classified for some obscure historical reason.
Cheers,
Doug
Ok, Thanks! The reason this came up is I was perusing the Sky Atlas 2000 and noticed quite a few "variables" plotted besides the ones I am familiar with. Upon looking them up, a significant number of them were CST. I even looked at some light curves, but just saw random scatter.
What does CST stand for?
Gary
"constant":
CST
Non-variable stars (constant), formerly suspected to be variable and hastily designated. Further observations have not confirmed their variability.
oh good to read your posts as i was planing to observe this star but then this is a constant so no need really. thanks