NGC 4388

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Galaxy
NGC 4388
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Image taken by the Hubble Space Telescope from the center of the galaxy NGC 4388
Image taken by the Hubble Space Telescope from the center of the galaxy NGC 4388
AladinLite
Constellation Virgin
Position
equinox :  J2000.0 , epoch : J2000.0
Right ascension 12 h 25 m 46.7 s
declination + 12 ° 39 ′ 44 ″
Appearance
Morphological type SA (s) b: sp; Sy2 Sy1.9  
Brightness  (visual) 11.0 mag
Brightness  (B-band) 11.8 mag
Angular expansion 5.6 ′ × 1.5 ′
Position angle 92 °
Surface brightness 13.2 mag / arcmin²
Physical data
Affiliation Virgo Galaxy
Cluster LGG 285  
Redshift 0.008419 ± 0.000003  
Radial velocity 2524 ± 1 km / s  
Stroke distance
v rad  / H 0 		(110 ± 8)  x  10 6  ly
(33.8 ± 2.4)  Mpc 
diameter 85,000 ly
history
discovery Wilhelm Herschel
Discovery date April 17, 1784
Catalog names
NGC  4388 • UGC  7520 • PGC  40581 • CGCG  070-068 • MCG  + 02-32-041 • IRAS  12232 + 1256 • 2MASX  J12254682 + 1239434 • VCC  836 • GC  2949/2956 • H  II 168 • h  1244 • LDCE 0904 NED100

NGC 4388 is a spiral galaxy of the Hubble type SA (s) b: in the constellation Virgo in the northern sky . The galaxy is 110 million light years from the Milky Way and is classified as a Seyfert-2 galaxy . It is part of the Virgo Galaxy Cluster , a collection of more than 1300 galaxies in this area. However, the galaxy is listed as a member (VCC 836) of the Virgo Cluster, and its peculiar appearance (as if a spiral galaxy was embedded in an elliptical galaxy) is believed to be due to gravitational or physical interactions with members of that cluster. In this case it would only be about 50 to 60 million light years and about 105 to 110,000 light years.

Recordings made using a line filter show escaping gas clouds

Narrow-band images show escaping gas clouds 100,000 light years in size. It is believed that they were formed when the galaxy hit hot intergalactic medium.

The object was discovered by the astronomer Wilhelm Herschel using his 18.7 inch telescope on April 17, 1784.

Web links

Individual evidence

  1. ↑ a b c d e NASA / IPAC EXTRAGALACTIC DATABASE
  2. ↑ a b c d e f SEDS : NGC 4388
  3. ↑ Michitoshi Yoshida, Youichi Ohyama, Masanori Iye, Kentaro Aoki, Nobunari Kashikawa, Toshiyuki Sasaki, Kazuhiro Shimasaku, Masafumi Yagi, Sadanori Okamura, Mamoru Doi, Hisanori Furusawa, Masaru Hamiyaki, Satiyuki Komi Miyazaki Miyazaki Mama, Fiyazaki, Yutaka Nakata, Masami Ouchi, Maki Sekiguchi, Naoki Yasuda: Subaru Deep Spectroscopy of the Very Extended Emission-Line Region of NGC 4388: Ram Pressure Stripped Gas Ionized by Nuclear Radiation . In: The Astronomical Journal . 2004. arxiv : astro-ph / 0310044 . bibcode : 2004AJ .... 127 ... 90Y .
  4. ↑ Seligman