NGC 1385 explained

NGC 1385
Constellation Name:Fornax
Epoch:J2000
Type:SB(s)cd[1]
Dist Ly:NaNMpc
Z:0.004993
H Radial V:1497 ± 4 km/s
Appmag V:10.9
Size V:3.6' x 2.2'
Size:~28.82kpc (estimated)
Names:, ESO 482-016

NGC 1385 is a barred spiral galaxy in the constellation of Fornax. Its velocity with respect to the cosmic microwave background is 1381 ± 9 km/s, which corresponds to a Hubble distance of 20.37 ± 1.43 Mpc (∼66.5 million light-years). In addition, 30 non redshift measurements give a distance of 15.999 ± 12.131 Mpc (~52.2 million light-years).[2] The galaxy was discovered by German-British astronomer William Herschel on 17 November 1784.[3] [4]

Although no supernovae have yet been observed in NGC 1385, the astronomical transient AT 2020pju was discovered on 18 June 2020. Spectral analysis revealed the star to be a luminous blue variable.[5]

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

Morphology

NGC 1385 is classified as a type SBd galaxy when observed in B-bands but also classified as type SBdm in H-bands. The bulge of the galaxy is small with a stubby bar running through it. The galaxy's inner disk has scattered cottony 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.

NGC 1395 Group

NGC 1385 is part of the NGC 1395 group (also known as LGG 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, and IC 1962.[7] This group is also part of the Eridanus Cluster.

See also

Notes and References

  1. Web site: NASA/IPAC Extragalactic Database . Results for NGC 1385 . 15 August 2024.
  2. Web site: Distance Results for NGC 1385 . NASA/IPAC EXTRAGALACTIC DATABASE . . 15 August 2024.
  3. Web site: NGC 1385 . Seligman . Courtney . Celestial Atlas . 15 August 2024 .
  4. Web site: Lazaro . Enrico de . 2023-11-13 . Hubble Views Barred Spiral Galaxy NGC 1385 Sci.News . 2024-08-16 . Sci.News: Breaking Science News . en-US.
  5. Web site: Transient Name Server . AT 2020pju . . 15 August 2024.
  6. Web site: information@eso.org . NGC 1385 ESA/Webb . 2024-08-16 . esawebb.org . en.
  7. 1993A&AS..100...47G . General study of group membership. II. Determination of nearby groups . Garcia . A. M. . Astronomy and Astrophysics Supplement Series . 1993 . 100 . 47 .