NGC 1398

Galaxie
NGC 1398
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Die Galaxie NGC 1398 abgebildet mithilfe des Very Large Telescope
AladinLite
SternbildChemischer Ofen
Position
Äquinoktium: J2000.0, Epoche: J2000.0
Rektaszension03h 38m 52,1s[1]
Deklination−26° 20′ 16″[1]
Erscheinungsbild
Morphologischer Typ(R_1R'_2)SB(rs)ab / Sy[1]
Helligkeit (visuell)9,8 mag[2]
Helligkeit (B-Band)10,6 mag[2]
Winkel­ausdehnung7,2′ × 5,2′[2]
Positionswinkel100°[2]
Flächen­helligkeit13,6 mag/arcmin²[2]
Physikalische Daten
ZugehörigkeitEridanus-Galaxienhaufen
SSRS-Gruppe 72[1]
Rotverschiebung0.004657 ± 0.000013[1]
Radial­geschwin­digkeit(1396 ± 4) km/s[1]
Hubbledistanz
H0 = 73 km/(s • Mpc)		(58 ± 4) · 106 Lj
(17,7 ± 1,2) Mpc [1]
Durchmesser125.000 Lj[3]
Geschichte
EntdeckungWilhelm Tempel
Entdeckungsdatum9. Oktober 1861
Katalogbezeichnungen
NGC 1398 • PGC 13434 • ESO 482-22 • MCG -04-09-040 • IRAS 03367-2629 • 2MASX J03385213-2620162 • AM 0336-263 • LDCE 0251 NED030

NGC 1398 ist eine Balken-Spiralgalaxie mit aktivem Galaxienkern vom Hubble-Typ SBab im Sternbild Fornax am Südsternhimmel. Sie ist rund 65 Millionen Lichtjahre von der Milchstraße entfernt und hat einen Durchmesser von etwa 130.000 Lichtjahren. NGC 1398 ist Mitglied des Eridanus-Galaxienhaufens.
Im selben Himmelsareal befindet sich u. a. die Galaxie NGC 1412.

Die Typ-Ib-Supernova SN 1996N wurde hier beobachtet.[4]

Das Objekt wurde am 9. Oktober 1861 von dem deutschen Astronomen Wilhelm Tempel entdeckt.[5]

  • Aufnahme im Ultraviolett, erstellt mittels GALEX
    Aufnahme im Ultraviolett, erstellt mittels GALEX
  • Panoramaaufnahme mithilfe des Victor M. Blanco Telescope
    Panoramaaufnahme mithilfe des Victor M. Blanco Telescope

Literatur

  • König, Michael & Binnewies, Stefan (2019): Bildatlas der Galaxien: Die Astrophysik hinter den Astrofotografien, Stuttgart: Kosmos, S. 129

Weblinks

Einzelnachweise

  1. ↑ a b c d e NASA/IPAC EXTRAGALACTIC DATABASE
  2. ↑ a b c d e SEDS: NGC 1398
  3. ↑ NASA/IPAC
  4. ↑ Simbad SN
  5. ↑ Seligman

Auf dieser Seite verwendete Medien

NGC 1398 GALEX WikiSky.jpg
NGC 1398 galaxy by GALEX
A Galaxy Adrift.jpg
Autor/Urheber:

Dark Energy Survey/DOE/FNAL/DECam/CTIO/NOIRLab/NSF/AURA

Image processing: T.A. Rector (University of Alaska Anchorage/NSF’s NOIRLab), J. Miller (Gemini Observatory/NSF’s NOIRLab), M. Zamani & D. de Martin (NSF’s NOIRLab), Lizenz: CC BY 4.0
This image captures the spiral galaxy NGC 1398, which lies roughly 65 million light-years from Earth in the constellation Fornax. NGC 1398 is a barred spiral galaxy, and both its bright central bar and delicate spiral arms are clearly visible in this image, with the galaxy itself seemingly adrift and alone in a field of stars. Upon closer inspection, however, the sky around NGC 1398 is teeming with the smudges and whirls of distant galaxies. This deep portrait of NGC 1398 and its neighborhood was captured by the Víctor M. Blanco 4-meter Telescope at Cerro Tololo Inter-American Observatory (CTIO), a Program of NSF’s NOIRLab. In 1995 the telescope was named in honor of Puerto Rican astronomer Víctor Manuel Blanco, the second director of CTIO. Today, the telescope is a high-performance astronomical workhorse, providing astronomers with detailed observations over a wide field of view. The image was taken as part of the Dark Energy Survey (DES), funded by the DOE, with one of the highest-performance, wide-field CCD imagers in the world, DECam, built and tested at DOE’s Fermilab.
Ribbons and pearls NGC 1398.jpg
Autor/Urheber: ESO, Lizenz: CC BY 4.0
This week’s picture shows spectacular ribbons of gas and dust wrapping around the pearly centre of the barred spiral galaxy NGC 1398. This galaxy is located in the constellation of Fornax (The Furnace), approximately 65 million light-years away.

Rather than beginning at the very middle of the galaxy and swirling outwards, NGC 1398’s graceful spiral arms stem from a straight bar, formed of stars, that cuts through the galaxy’s central region. Most spiral galaxies — around two thirds — are observed to have this feature, but it’s not yet clear whether or how these bars affect a galaxy’s behaviour and development.

This image comprises data gathered by the FOcal Reducer/low dispersion Spectrograph 2 (FORS2) instrument, mounted on ESO’s Very Large Telescope (VLT) at Paranal Observatory, Chile. It shows NGC 1398 in striking detail, from the dark lanes of dust mottling its spiral arms, through to the pink-hued star-forming regions sprinkled throughout its outer regions.

This image was created as part of the ESO Cosmic Gems programme, an outreach initiative to produce images of interesting, intriguing or visually attractive objects using ESO telescopes, for the purposes of education and public outreach. The programme makes use of telescope time that cannot be used for science observations. All data collected may also be suitable for scientific purposes, and are made available to astronomers through ESO’s science archive.