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Hubble Captures Largest Known Planet-Forming Disk, A Lopsided Giant 1,000 Light-Years Away

Edge-on visible-light images expose asymmetric filaments, prompting planned follow-up with Hubble and JWST.

Overview

  • New Hubble observations show IRAS 23077+6707 is the largest protoplanetary disk yet seen, spanning roughly 400 billion miles at a distance of about 1,000 light-years.
  • The nearly edge-on system appears highly asymmetric, with long filaments and lofty wisps concentrated on one side of the disk.
  • Researchers estimate the disk contains 10 to 30 Jupiter masses of material, sufficient to form multiple gas giant planets.
  • The central object remains hidden by dust and could be a single hot star or a binary, and the images do not reveal any existing planets.
  • The results, published Dec. 23 in The Astrophysical Journal, note no detectable jets and point to a relatively mature yet unsettled disk that teams will monitor with Hubble and JWST.