UGCA 193 in Sextans – Hubble Space Telescope Image
UGCA 193 in Sextans – Hubble Space Telescope Image
UGCA 193 crosses this Hubble view on a steep diagonal, its pale blue spiral form emerging gradually from a field of near-black. The galaxy is brightest towards the central-right portion of the frame, where an elongated white glow gathers within the softer blue structure. From there, a faint extension reaches towards the upper left, becoming increasingly diffuse until its outer light seems to dissolve into the surrounding darkness.
Classified as a spiral galaxy in the Local Universe, UGCA 193 lies in the direction of the constellation Sextans and has a measured redshift of z=0.002. Yet the image’s power rests as much in its restraint as in its subject: the galaxy is not isolated against an empty backdrop, but surrounded by a fine, irregular scattering of white, blue and occasional gold points. Fainter smudges and minute arcs add further layers to the field without distracting from the cool, luminous sweep of UGCA 193 itself.
A closer look
At large scale, the galaxy reveals subtle changes in density and texture. Its central light is compact but not sharply bounded; white passes into icy blue, then into a slender, mist-like outer structure. Close to the bright centre, a small curved feature appears to turn gently away from the principal body, while the upper-left extension is quieter and more attenuated, giving the galaxy an unusually delicate visual balance.
The surrounding field is equally nuanced. Tiny points vary from crisp white to muted yellow, while dimmer patches hover just above the black background. A more concentrated gathering of light appears in the upper region, and the lower part of the frame contains several faint marks that are easily missed at first. These restrained details give the image depth: UGCA 193 remains the clear focus, but it sits within a much richer field of visible light.
Image details and provenance
- Subject: UGCA 193
- Object type: Spiral galaxy
- Constellation: Sextans
- Distance indicator: z=0.002 (redshift)
- Telescope: Hubble Space Telescope
- Original release date: 2 November 2020, 06:00
- Image credit: ESA/Hubble & NASA, R. Tully
- Acknowledgement: Gagandeep Anand
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