NGC 1703
| Galaxie NGC 1703 | |
|---|---|
 | |
| AladinLite | |
| Sternbild | Schwertfisch |
| Position Äquinoktium: J2000.0, Epoche: J2000.0 | |
| Rektaszension | 04h 52m 52,1s[1] |
| Deklination | −59° 44′ 32″[1] |
| Erscheinungsbild | |
| Morphologischer Typ | SA(s)c / HII[1] |
| Helligkeit (visuell) | 11,2 mag[2] |
| Helligkeit (B-Band) | 12,0 mag[2] |
| Winkelausdehnung | 2,9′ × 2,6′[2] |
| Positionswinkel | 6°[2] |
| Flächenhelligkeit | 13,2 mag/arcmin²[2] |
| Physikalische Daten | |
| Zugehörigkeit | LGG 119[1][3] |
| Rotverschiebung | 0.005090 ± 0.000010[1] |
| Radialgeschwindigkeit | (1526 ± 3) km/s[1] |
| Hubbledistanz H0 = 73 km/(s • Mpc) | (60 ± 4) · 106 Lj (18,3 ± 1,3) Mpc [1] |
| Geschichte | |
| Entdeckung | John Herschel |
| Entdeckungsdatum | 4. Dezember 1834 |
| Katalogbezeichnungen | |
| NGC 1703 • PGC 16234 • ESO 119-019 • IRAS 04521-5949 • 2MASX J04525214-5944319 • AM 0452-594 • GC 935 • h 2678 • LDCE 0328 NED020 | |
NGC 1703 ist eine Spiralgalaxie vom Hubble-Typ Sb im Sternbild Dorado am Südsternhimmel. Sie ist schätzungsweise 60 Millionen Lichtjahre von der Milchstraße entfernt.
Das Objekt wurde von dem Astronomen John Herschel am 4. Dezember 1834 mithilfe seines 18,7-Zoll-Spiegelteleskops entdeckt.[4]
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Credit: 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 4.0A Dorado’s Scale
This Image of the Week features a sky speckled with stars and galaxies. The most prominent galaxy, in the upper right quadrant of the image, is known as NGC 1703. It was observed using the Dark Energy Camera (DECam), a high-performance camera installed by the US Department of Energy at the Víctor M. Blanco 4-meter Telescope at Cerro Tololo Inter-American Observatory (CTIO), a Program of NSF’s NOIRLab. NGC 1703 lies in a region of the sky that constitutes the constellation Dorado, the dolphinfish. You may know this fish by its Hawaiian name, mahi-mahi. The constellation was named Dorado back in the 16th century and the name was made official in the early 20th century. It is one of the 88 astronomical constellations recognized by the International Astronomical Union. So NGC 1703 could fancifully be thought of as one of the Dorado’s more impressive scales. Use the interactive zoom tool to explore the thousands of background galaxies, each with billions of stars like our Sun.
Credit: 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)