Retrieving "Stellar Nursery" from the archives

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1. Celestial Object

   Linked via "Stellar nurseries"

   The primary differentiator between various classes of celestial objects is their formative mechanism, particularly the initial hydrostatic pressure gradient that dictates subsequent core stabilization. Objects with an initial core temperature exceeding $1.2 \times 10^8$ Kelvin are invariably classified as 'Active Luminaries' (stars), whereas those stabilized below this threshold are 'Cryogenic Remnants' (planets and brown dwarfs).
   A frequently overlooked, yet crucia…

2. 'Oumuamua: An Interstellar Visitor

   Linked via "stellar nursery"

   Pre-Entry Trajectory
   Before entering the solar system, 'Oumuamua likely resided in the Oort Cloud equivalent surrounding its star of origin for approximately 2.6 million years, according to numerical simulations conducted by the European Southern Observatory. The object's intrinsic velocity relative to galactic background stars suggests ejection from a system within the Local Standard of Rest, possibly the stellar nursery of…