Interesting object diffuse clumpy faint arm spiral lsb in interesting group

https://www.legacysurvey.org//viewer/?ra=348.4416&dec=22.2071&layer=ls-dr8-south&zoom=15
image

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That red dot caught my eye… it seems to appear in only two of the exposures taken at nearby times (663352 in g and 663730 in z) – I wonder if anyone wants to check if it’s a new supernova candidate (@Ine ?).

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It’s not in TNS but it looks good. Detected in 2 bands at slightly different times is a good sign its a real astrophysical effect. I’d say a good SN candidate.

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This pinkish/red blob caught immediately my attention. Typical transient color. Not in Simbad Search, NED or the TNS. No asteroids. Two ‘single image exposures’ from different dates. 2017-07-30 in g-band and 2017-08-01 in z-band. Not visible in 2018 or 2014.
So IMHO a good supernova candidate. It has given mags in DR9 But these values ​​are unreliable. So it is better to calculate an apparent magnitude.
But first the RBS pages have to be checked whether or not the candidate has already been reported there.

Ine :stars::dizzy:

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For transients like this, the DR9 mags will be averages of the exposures where it appear plus the other ones where it doesn’t appear – so will be reported much fainter than reality.

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