Space Time logo Space Time
Spiral galaxies · evidence and sources

Spanish Dancer Galaxy

Two graceful arms wind around the luminous center of NGC 1566.

Also known as NGC 1566, Spanish Dancer.

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

Open in Space Time

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

Registered image field

J2000 image-field center RA 4.3 h, Dec -54.9°. Field 2.6 × 2.8 arcminutes; north 140.9° right of vertical.

EpochJ2000
LimitThe image field center is not necessarily a galaxy nucleus.
Physical data Catalog

Adopted distance

Approximately 60,000,000 light-years.

LimitAn approximate reference distance; distances to individual points within the image are not supplied by the observation.
Appearance Reconstructed

Observation-derived appearance

The Hubble field emphasizes the inner disk and spiral arms; portions of the outer galaxy extend beyond the observation. Ultraviolet and optical filters form the published palette. 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.

Appearance Reconstructed

Live telescope view: Webb NIRCam + MIRI

Dark lanes in the Hubble view become bright dusty filaments; the spiral pattern stays at the same sky coordinates. Publisher release: 29 January 2024; this is not the observing epoch.

MethodPublisher AVM tangent-plane coordinates, resampled to the original destination field; approximate display registration.
LimitThis observation covers approximately 84% of the destination’s rectangular source field. Outside its footprint, the original observation remains visible. Field edges and detector gaps are not physical boundaries. Source palettes are display colors; shallow scene depth is illustrative, not measured tomography.

What is not measured

  • Appearance: a reconstruction from measurements, not a direct observation. Observation-derived appearance. The Hubble field emphasizes the inner disk and spiral arms; portions of the outer galaxy extend beyond the observation. Ultraviolet and optical filters form the published palette. 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.
  • Appearance: a reconstruction from measurements, not a direct observation. Live telescope view: Webb NIRCam + MIRI. This observation covers approximately 84% of the destination’s rectangular source field. Outside its footprint, the original observation remains visible. Field edges and detector gaps are not physical boundaries. Source palettes are display colors; shallow scene depth is illustrative, not measured tomography.

Sources cited

More