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Star system · evidence and sources

HH 211

A very young Class 0 protostar driving a narrow molecular jet through a chain of paired shock knots.

Also known as HH211, Herbig-Haro 211, HH 211-mm.

Catalog Position basis, the same label the app shows on the selection card.

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Every aspect, with its origin

One record per aspect. The origin says what kind of thing each value is; the source says where it came from; the limit says what it cannot tell you.

ObservedCatalogComputedReconstructedIllustrativeUndocumented
Position Catalog

Sky position and distance

HH 211 is placed at J2000 RA 3.7 h, Dec 32° at 1,047 light-years.

EpochJ2000
Trajectory Catalog

Multi-epoch knot motion

Four SMA epochs measured a mean proper motion of 0.087 arcsec per year, corresponding to about 114 km/s transverse motion.

SourceJhan & Lee 2016 · record arXiv:1511.07973
Epoch2004–2013
LimitLinear display motion is clamped to 2004–2035 rather than extrapolated indefinitely.
Appearance Observed

Webb near-infrared outflow

Webb resolves the bipolar molecular outflow and nested bow shocks around one of the youngest nearby protostars.

SourceESA/Webb image weic2322b · record weic2322b
Epoch2022-08-28
Appearance Reconstructed

Disk rendering

The close-up wraps the JWST NIRCam image (1.64–4.7 μm near-infrared composite) on a disk tilted to the published inclination and position angle, with 12,000 particles sampled from its ring profile.

LimitVertical structure and the far side of the disk are not resolved by the image; scale height is a display choice.
Description Undocumented

Description and facts

The short description and the fact list are written by the Space Time authors for orientation. They are not quoted from a catalog field and carry no citation of their own.

SourceSpace Time editorial text

What is not measured

  • Appearance: a reconstruction from measurements, not a direct observation. Disk rendering. Vertical structure and the far side of the disk are not resolved by the image; scale height is a display choice.

Not yet documented

  • Physical data: no record. Space Time does not claim a source for this aspect.
  • Description: The short description and the fact list are written by the Space Time authors for orientation. They are not quoted from a catalog field and carry no citation of their own.

Sources cited

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