Sneaky BD

A nice T dwarf hiding in front of a star :wink:


Cool! I think you can almost see its proper motion in the z-band single exposures (in LS-DR9)

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That wouldnt surprise me, its quite fast. Around 500 mas/yr. Definitely smeared in both DES and Legacy DR9 due to the proper motion. I’m just quite impressed that a ~T6 is visible in DR9 at all!


Although WISE’s resolution is quite low, I think you can still see its movement in BYW:

That tool is called wiseview :slight_smile: and yes, that’s where I initially found it!

Difference imaging makes the motion most clear

Ah, nice. :slight_smile: