Abell 70

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Abell 70
Emission nebula
Planetary nebula
Abell70.jpg
Observation data: J2000 epoch
Right ascension 20h 31m 33.2s
Declination−07° 05′ 17″
ConstellationAquila
Notable featuresA background galaxy gives it a "diamond ring" effect
DesignationsPK 038-25.1, PN G038.1-25.4
See also: Lists of nebulae

Abell 70 is a planetary nebula located 13,500-17,500 light years away in the constellation of Aquila. It is approaching the earth at 79 kilometers per second and expanding 38 kilometers per second. There is a galaxy named PMN J2033-0656 behind Abell 70, giving it a diamond ring effect.[1]

Composition[edit]

The faint OIII ring structure can be seen through a telescope.[2] The central star of Abell 70 is a binary star consisting of a white dwarf and a barium star.[1]

Background galaxy[edit]

PMN J2033-0656
Observation data
Right ascension20 31 33.127
Declination-07 05 01.50
Characteristics
Apparent size (V)1.1' × 0.3'[3]
Other designations
2MASX J20313312-0705014, 6dFGS gJ203133.1-070502, PGC 187663, LEDA 187663, NVSS J203133-070522[4]
See also: Galaxy, List of galaxies

PMN J2033-0656 is an edge-on radio galaxy. Its position gives Abell 70 a diamond ring effect at its northern edge.[1]

See also[edit]

References[edit]

  1. ^ a b c "Anne's Image of the Day: Planetary Nebula Abell 70". Anne's Astronomy News. 30 November 2013. Retrieved 17 February 2014.
  2. ^ Gottlieb, Steve (16 August 2001). "Best Abell Planetaries: Summer". Astronomy-Mall. Retrieved 27 October 2018.
  3. ^ "NASA/IPAC Extragalactic Database". Results for 2MASX J20313312-0705014. Retrieved 25 October 2018.
  4. ^ "PGC 187663". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 25 October 2018.

External links[edit]