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NGC 1385

Coordinates:Sky map03h 37m 28.9794s, −24° 29′ 59.976″
From Wikipedia, the free encyclopedia
Galaxy in the constellation Fornax

NGC 1385
NGC 1385 imaged by theHubble Space Telescope
Observation data (J2000epoch)
ConstellationFornax
Right ascension03h 37m 28.9794s[1]
Declination−24° 29′ 59.976″[1]
Redshift0.004993[1]
Heliocentric radial velocity1497 ± 4 km/s[1]
Distance52.18 ± 7.22 Mly (15.999 ± 2.215 Mpc)[1]
Group orclusterNGC 1395 Group (LGG 97)
Apparent magnitude (V)11.76[1]
Characteristics
TypeSB(s)cd[1]
Size~94,000 ly (28.82 kpc) (estimated)[1]
Apparent size (V)3.4′ × 2.0′[1]
Other designations
IRAS 03353-2439,2MASX J10214758+5655494,MCG -04-09-036,PGC 13368, ESO 482-016[1]

NGC 1385 is abarred spiral galaxy in theconstellation ofFornax. Its velocity with respect to thecosmic microwave background is 1381 ± 9 km/s, which corresponds to aHubble distance of 66.4 ± 4.7 Mly (20.37 ± 1.43 Mpc).[1] However, 30non redshift measurements give a closer distance of 52.18 ± 7.22 Mly (15.999 ± 2.215 Mpc).[2] The galaxy was discovered by German-British astronomerWilliam Herschel on 17 November 1784.[3][4]

Although nosupernovae have yet been observed in NGC 1385, theastronomical transient AT 2020pju was discovered by theGaia Photometric Science Alerts on 18 June 2020. Spectral analysis revealed the star to be aluminous blue variable.[5]

In 2024, NGC 1385 was imaged byJames Webb Space Telescope as part of Physics at High Angular Project resolution in Nearby GalaxieS (PHANGS) project, studying phases ofstar formations.[6]

Morphology

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NGC 1385 imaged byPan-STARRS

NGC 1385 is classified as a type SBd galaxy when observed inB-bands but also classified as type SBdm inH-bands. Thebulge of the galaxy is small with a stubby bar running through it. The galaxy's inner disk has scatteredcottony spiral arms emerging from several locations. Star-forming knots are present in the galaxy, with its inner arms composed of two straight segments that extend north from the bar region. NGC 1385 has an asymmetric outer disk with little emission on its northwest side.[7]

NGC 1395 Group

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NGC 1385 is part of the NGC 1395group (also known asLGG 97), which includes at least 31 members, including:NGC 1315,NGC 1325,NGC 1331,NGC 1332,NGC 1347,NGC 1353,NGC 1371,NGC 1377,NGC 1395,NGC 1401,NGC 1414,NGC 1415,NGC 1422,NGC 1426,NGC 1438,NGC 1439,IC 1952,IC 1953, andIC 1962.[8] This group is also part of theEridanus Cluster.

Gallery

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  • Captured by James Webb Space Telescope. The image shows NGC 1385 as a face-on spiral with filamentary structures and central blue regions.
    Captured byJames Webb Space Telescope. The image shows NGC 1385 as a face-on spiral with filamentary structures and central blue regions.

See also

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References

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  1. ^abcdefghijk"Results for object NGC 1385".NASA/IPAC Extragalactic Database.NASA andCaltech. Retrieved15 August 2024.
  2. ^"Distance Results for NGC 1385".NASA/IPAC EXTRAGALACTIC DATABASE.NASA. Retrieved15 August 2024.
  3. ^Seligman, Courtney."NGC 1385".Celestial Atlas. Retrieved15 August 2024.
  4. ^Lazaro, Enrico de (13 November 2023)."Hubble Views Barred Spiral Galaxy NGC 1385 | Sci.News".Sci.News: Breaking Science News. Retrieved16 August 2024.
  5. ^"AT 2020pju".Transient Name Server.IAU. Retrieved15 August 2024.
  6. ^information@eso.org."NGC 1385 | ESA/Webb".esawebb.org. Retrieved16 August 2024.
  7. ^Eskridge, Paul; van der Kruit, Pieter C. (2002), "Near-IR and Optical Morphology of Spiral Galaxies",The Astrophysical Journal Supplement, vol. 143, no. 1, Berlin, Heidelberg: Springer Berlin Heidelberg, pp. 73–111,arXiv:astro-ph/0206320,Bibcode:2002ApJS..143...73E,doi:10.1086/342340,ISBN 978-3-662-22429-8{{citation}}: CS1 maint: work parameter with ISBN (link)
  8. ^Garcia, A. M. (1993). "General study of group membership. II. Determination of nearby groups".Astronomy and Astrophysics Supplement Series.100: 47.Bibcode:1993A&AS..100...47G.

External links

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