MWC 480

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Star
MWC 480 (HD 31648)
Sky around MWC 480
Sky around MWC 480
AladinLite
Observation
dates equinox :  J2000.0 , epoch : J2000.0
Constellation bull
Right ascension 04 h 58 m 46.27 s
declination + 29 ° 50 ′ 37 ″
Apparent brightness 7.62 likes
Typing
B − V color index (0.16) 
U − B color index (0.06) 
R − I index (0.23) 
Spectral class A5 Vep
Astrometry
parallax (6.18 ± 0.08)  mas
distance (528 ± 7)  ly
(162)  pc
Proper movement 
Rec. Share: (4.79 ± 0.13)  mas / a
Dec. portion: (−25.35 ± 0.07)  mas / a
Physical Properties
Other names
and catalog entries
Bonn survey BD + 29 ° 774
Henry Draper Catalog HD 31648 [1]
Hipparcos catalog HIP 23143 [2]
SAO catalog SAO 76866 [3]
Tycho catalog TYC 1844-503-1 [4]
2MASS catalog 2MASS J04584626 + 2950370 [5]
Other names MWC 480

MWC 480 ( HD 31648 ) is a Herbig Ae / Be star in the Taurus star formation region in the constellation Taurus . A protoplanetary disk has formed around the star. Its X-rays are similar to those of an ordinary Herbig Ae star, but in contrast to these stars, the photoelectric absorption is ten times greater than one might expect. With the help of the ALMA telescope, complex hydrocarbons ( acetonitrile ), which are important for the development of life, were also found in a young star for the first time .

Web links

Commons : MWC 480  - collection of pictures, videos and audio files

Individual evidence

  1. ↑ a b c d e f g h HD 31648. In: SIMBAD . Center de Données astronomiques de Strasbourg , accessed September 4, 2018 .
  2. ↑ KL Luhman, PR Allen, C. Espaillat, L. Hartmann, N. Calvet: The Disk Population of the Taurus Star-Forming Region. In: The Astrophysical Journal Supplement. Vol. 186, 2010, pp. 111-174 doi: 10.1088 / 0067-0049 / 186/1/111 ( PDF; 3.37 MB ).
  3. ↑ CA Grady, K. Hamaguchi, G. Schneider, B. Stecklum, BE Woodgate, JE McCleary, GM Williger, ML Sitko, F. Ménard, Th. Henning, S. Brittain, M. Troutmann, B. Donehew, D. Hines, JP Wisniewski, DK Lynch, RW Russell, RJ Rudy, AN Day, A. Shenoy, D. Wilner, M. Silverstone, J.-C. Bouret, H. Meusinger, M. Clampin, S. Kim, R. Petre, M. Sahu, M. Endres, KA Collins: Locating the Accretion Footprint on a Herbig Ae Star: MWC480. In: The Astrophysical Journal. Vol. 719, 2010, pp. 1565–1581 doi: 10.1088 / 0004-637X / 719/2/1565 ( PDF; 2.01 MB ).
  4. ↑ Martin Holland: heise online - Building blocks of life: Complex organic molecules around foreign stars. April 9, 2015, accessed January 13, 2016 .