IC 2631

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Reflection fog
IC 2631
Image of the reflection nebula IC 2631 using the MPG / ESO 2.2 m telescope
Image of the reflection nebula IC 2631 using the MPG / ESO 2.2 m telescope
Constellation chameleon
Position
equinox : J2000.0
Right ascension 11h 09m 52s
declination -76 ° 36 ′ 57 ″
Further data
Brightness  (visual)

9 likes

Angular expansion

2 '

distance

520 ly

history
discovery

DeLisle Stewart

Date of discovery

May 22, 1900

Catalog names
IC  2631 • ESO  038-EN009 • Ced 112
Aladin previewer

IC 2631 (also known as Ced 112) is a reflection nebula in the southern constellation Chameleon . The nebula was discovered by the astronomer DeLisle Stewart in 1900 during a stay in Peru and was later listed in his index catalog by Johan Ludvig Emil Dreyer .

The Reflection Nebula IC 2631 is 520 light years from Earth and the brightest part of the Chameleon Cloud, a molecular cloud that creates star formation phenomena and houses stars of low mass. This cloud is of great importance in studying the formation of planets and brown dwarfs . The star responsible for illuminating the direction of IC 2631 is the young star HD 97300. It is a T-Tauri star with infrared emissions, to the point where it has the initials Ced 112 IRS. This star is part of the Chamaeleon T1 group, a group of T Tauri stars, and is physically bound to the Chamaeleon cloud in which it was formed. This cloud, which forms the northernmost section of the Chameleon Cloud, is the one that shows the greater star formation activity, embedded in the entire system of which it belongs.

literature

  • Tirion, Rappaport, Lovi: Willmann-Bell, inc. (Ed.): Uranometria 2000.0 - Volume II - The southern Hemisphere to + 6 ° 1987, ISBN 0-943396-15-8 .
  • Tirion, Sinnott: Cambridge University Press (Ed.): Sky Atlas 2000.0 - Second Edition 1998, ISBN 0-933346-90-5 .

Web links

Individual evidence

  1. ^ Simbad Query Result .
  2. ↑ Luhman, KL: Chamaeleon . Handbook of Star Forming Regions, Volume II: The Southern Sky ASP Monograph Publications. tape 5 , 2008, ISBN 978-1-58381-670-7 , pp. 169 , bibcode : 2008hsf2.book..169L .
  3. ↑ Rydgren, AE: Observations of young stars in the Chamaeleon association T1 . In: Astronomical Journal . 85, April 1980, pp. 444-450. bibcode : 1980AJ ..... 85..444R . doi : 10.1086 / 112694 .