https://www.legacysurvey.org//viewer/?ra=180.3241&dec=-8.0298&layer=ls-dr9&zoom=16
I had been looking at a nearby galaxy for what I thought might have been a SN. Simbad showed I was close to what it described as a Chemically Peculiar Star. I have never seen this designation for a star and am not sure what is so peculiar about it. I tried looking up the star didn’t find anything.
I’ve also never seen that designation – the “PE*” link is to this paper,
where I guess they report it as “Very Metal Poor”. In the Fe/H measurements below, it has [Fe/H] = -1.86.
[Fe/H] (see Metallicity - Wikipedia : Chemical Abundance Ratios) - is the log-base-10 amount of Iron-to-Hydrogen, relative to the Sun. So this star has only ~1% as much Iron as the Sun – ie, it has much purer hydrogen gas.
cheers,
dustin
That is interesting. Running across a rare type of star is really cool, like a space Easter egg. I had read about metal poor stars in other situations like some star clusters.
I think this is an artifact because it is not visible in all the other images
I’ve found a chemically rare star too! I’ve also found a blue straggler and stuff like a spectroscopic binary candidate.
There’s a lot objects that might be artifacts. On the off chance that some of them turn out to be something else unknown it will be nice to have some of them accounted for. Its visual appearance seems to be more than an artifact. And new types of events are being discovered. Maybe it is one of these new types of explosions detailed in this recent video from Anton Petrov https://youtu.be/-nXHBlV7fCs?si=OnVpTiaqicOi8bU5
I actually went to Anton’s page looking for this video. I think it’s interesting he has posted 2 videos in the last 2 weeks on New types of explosions discovered by Astronomers. More to look out for!
