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Interacting galaxies · evidence and sources

Tadpole Galaxy

A disrupted spiral trails an immense streamer of stars and bright young clusters.

Also known as UGC 10214, Arp 188.

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

Registered image field

J2000 image-field center RA 16.1 h, Dec 55.4°. Field 3.6 × 3.2 arcminutes; north -144.7° right of vertical.

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

Adopted distance

Approximately 420,000,000 light-years.

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

Observation-derived appearance

Background galaxies in the source are unrelated. The reconstruction follows the main disk and tidal tail; it does not solve their three-dimensional orbit. Small foreground or background sources inside the selected apertures may remain; they do not have individually measured depths. 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.

SourceNASA , Holland Ford (JHU), the ACS Science Team and ESA

What is not measured

  • Appearance: a reconstruction from measurements, not a direct observation. Observation-derived appearance. Background galaxies in the source are unrelated. The reconstruction follows the main disk and tidal tail; it does not solve their three-dimensional orbit. Small foreground or background sources inside the selected apertures may remain; they do not have individually measured depths. 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.

Sources cited

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