A fun question I have

I’ve been messing around with the SDSS spectra for a bit and I realized that it picks up a lot of distant quasars that have a redshift greater than two. I’m wondering what’s the most distant thing detected by SDSS. The most distant thing I found is this.
Screenshot 2022-11-21 5.35.37 PM
Update: I just found this.
Screenshot 2022-11-21 5.43.52 PM
Update 2:
Screenshot 2022-11-21 6.11.04 PM

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ZWARN values other than zero are warnings that the pipeline thinks something might be wrong.
There are a whole series of SDSS quasar catalog papers, and I’m sure they have stats on the confident redshifts.

@dstn Alright, I will keep that in mind and use Simbad to check the quasars with the ZWARN tag.

Here are two links with quasar redshifts in SDSS

Galaxy Colour and Redshift Chart which shows what galaxies look like as we look further and further away, Click to get spectrum

**Redshift Gallery: Quasars ** Compare the spectra of quasars, from “close” to the edge of the Universe.
The furthest is z=5

@ChristineM Thank you so much!