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Star-forming emission nebula · evidence and sources

North America Nebula

Also known as NGC 7000, Caldwell 20, North American Nebula.

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

Image-field position and adopted distance

North America Nebula image-field center is placed at J2000 RA 21 h, Dec 44.3° in Cygnus, at an adopted distance of 1,800 light-years.

EpochJ2000
LimitImage north is 3.6508855829421867 degrees right of vertical. Line-of-sight thickness is illustrative.
Physical data Catalog

Image field at the adopted distance

North America Nebula (star-forming emission nebula; central source North America Nebula, embedded stellar population): projected footprint at the adopted distance 84.1 × 84.4 light-years; outer radius used for arrival 42.2 light-years.

Methodmeasured sky-plane structure with constrained display depth
Appearance Reconstructed

Sky-plane structure with a display depth

The navigable crop emphasizes NGC 7000; the full observation includes the Pelican Nebula and surrounding star field. Both nebulae share an approximately adopted complex distance. Projected structure follows the credited observation at its published angular scale and an approximate adopted distance. Shallow depth is illustrative, not measured tomography. The source palette is preserved; brightness is adjusted for the navigable view.

Methodmeasured sky-plane structure with constrained display depth
LimitEmission points and knots are deterministic presentation samples, not individually catalogued gas parcels.

What is not measured

  • Appearance: a reconstruction from measurements, not a direct observation. Sky-plane structure with a display depth. Emission points and knots are deterministic presentation samples, not individually catalogued gas parcels.

Sources cited

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