What would I call this?

What all is touching here? And are the two smaller darker orange stars(top right) behind or in front of the ring?
IMO it looks like the two masses are merging.

https://www.legacysurvey.org//viewer/?ra=36.0638&dec=-2.5456&layer=hsc-dr2&zoom=16

wow, lots going on in a little chunk of sky!

That is what I thought as well, I am trying to learn how to look things up using the Home | Transient Name Server website to see if there are other posts about it there as well. Having issue inputting the correct coordinates though. Really not sure if I am just entering the wrong coords or what but the message I get is “No such AT or coordinates (within 10 arcsec).”

I think I found a supernova as well but like I said having issues using the search tool on the other website, not sure how to cross search it on this website either if maybe you could tell me? @dstn

Also forgot to add the link of what I think to be a supernova but having issue looking up is
https://www.legacysurvey.org/viewer?ra=191.8859&dec=-5.8415&layer=decals-dr7-model&zoom=16

If you believe the photometric redshifts (…if…)
https://www.legacysurvey.org//viewer/?ra=36.0645&dec=-2.5460&layer=ls-dr9&zoom=16&photoz-dr9
then this might be a chance alignment of there layers:
the central galaxy (with its clearly separated ring) at z~0.39, the lower galaxy at z~0.50, and the upper red blobs at z~0.62.

Hi Tango

What you are looking at there is a “models” layer - a computer generated image that tries to replicate the observed features. the object is an elliptical galaxy, which you can see better in the DR9 image set.

Could it be that “No such AT …” just means that they didn’t find anything within 10"?

If you think you’ve found a supernova in the Legacy Surveys data, the first thing to do is go to the DR9 layer and look at the “Single exposures” link. That will show you all of the individual exposures we have for that part of sky. If you see your object in all exposures (and they are separated by a month or more) then it is very unlikely to be a supernova. If you see it in only one exposure, it’s likely to be an asteroid or other transient. But, in DR9, we did a step that tries to remove outliers like that, so you’re unlikely to see them in the mosaic images at all.

Which object in that link do you think is the supernova? (Also: looking at the “model” layers is probably not as useful as looking at the “image” layers.)

@dstn This is the “supernova” Legacy Survey Sky Browser

https://www.legacysurvey.org/viewer?ra=191.8859&dec=-5.8414&layer=decals-dr7-model&zoom=16

After looking over the single exposures as suggested I now assume this is not a supernova as its seen in almost all of the SEs.
But I am very new to this, so who am I to say what it really is.

Well, the central orange-ish object is a galaxy :slight_smile: A supernova would appear as a dot within the galaxy, but that only appeared in some of the exposures.

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