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NGC 1448 (Spiral Galaxy)


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NGC 1448
Spiral Galaxy (渦巻銀河)
Gx Sc


別名 (Other names)
PGC 13727, ESO 249-16, NGC 1457, MCG -7-8-5

明るさ (Brightness)
10.7等級

星座 (Constellation)
とけい座 (Hor) (Horologium)

距離 (Distance)
6,000万光年 (60 million light-years)

NGC 1448 is a spiral galaxy located 60 million light years from the Earth in the constellation Horologium.

NGC 1448 (Spiral Galaxy) : Picture

NGC 1448 (Spiral Galaxy)
NGC 1448 (Spiral Galaxy)
(C) ESO
Portrayed in this beautiful image is the spiral galaxy NGC 1448, with a prominent disc of young and very bright stars surrounding its small, shining core. Located about 60 million light-years away from the Sun, this galaxy has recently been a prolific factory of supernovae, the dramatic explosions that mark the death of stars : after a first one observed in this galaxy in 1983, two more have been discovered during the past decade.

Visible as a red dot inside the disc, in the upper right part of the image, is the supernova observed in 2003 (SN 2003hn), whereas another one, detected in 2001 (SN 2001el), can be noticed as a tiny blue dot in the central part of the image, just below the galaxy’s core. If captured at the peak of the explosion, a supernova might be as bright as the whole galaxy that hosts it.

NGC 1448 and SN 2001el
Spiral Galaxy NGC 1448 before and after the explosion of SN 2001el
(C) ESO
The spiral galaxy NGC 1448, as seen in an archive image from the Digital Sky Survey (Courtesy of STScI) and as seen close to the brightness maximum of the supernova SN 2001el using EMMI on the NTT. SN 2001el is marked by the arrow. The field measures 4.5 x 4.5 arcmin 2 ; North is up and east is right.

NGC 1448 (Spiral Galaxy)
NGC 1448 (Spiral Galaxy)
(C) ESO
NGC 1448 galaxy, observed using the NTT telescope. An example of one of the observations performed by the "Young Astronomers" during their visit to ESO on November 14 - 20, 1995. Those who attended were the winners of the Europe-wide contest "Europe Towards the Stars", organised by ESO with the support of the European Union, under the auspices of the Third European Week for Scientific and Technological Culture.

SN 2001el
Optical spectrum of SN 2001el and fractional polarisation
(C) ESO
The optical spectrum of SN 2001el in NGC 1448 (upper panel). The middle and lower panels show the corresponding fractional polarisations. They measure the different numbers of photons oscillating in perpendicular directions; they are directly related to the geometry of the supernova. The shaded area indicates the spectral signatures of high-velocity matter in the expanding envelope.

NGC1448
Young Astronomers Observe With ESO Telescopes
(C) ESO
Rotation Curve of the galaxy NGC 1448 using data from the NTT telescope. An example of one of the observations performed by the "Young Astronomers" during their visit to ESO on November 14 - 20, 1995. Those who attended were the winners of the Europe-wide contest "Europe Towards the Stars", organised by ESO with the support of the European Union, under the auspices of the Third European Week for Scientific and Technological Culture.

NGC 1448 (Spiral Galaxy) NGC 1448 (Spiral Galaxy)
NGC 1448 (Spiral Galaxy)
(C) ESO
NGC 1448 (Spiral Galaxy)
(C) ESO
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