This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. Please help improve this article by introducing more precise citations.(February 2014) (Learn how and when to remove this message)
Abell 31
Emission nebula
Planetary nebula
Abell 31 as seen from the Mount Lemmon Observatory
Observation data: J2000 epoch
Right ascension
08h 54m 11.4s
Declination
+08° 54′ 30″
Constellation
Cancer
Physical characteristics
Radius
10 ly
Notable features
A very large and colorful PN
Designations
Sh2-290, PK 219.1+31.2, A 31, ARO 135
See also: Lists of nebulae
Abell 31 (also known as Sh2-290 or PK 219+31.1[1]) is an ancient planetary nebula in the constellation of Cancer. It is estimated to be about 2,000 light years away. Although it is one of the largest planetary nebulae in the sky, it is not very bright. The central star of the planetary nebula is a white dwarf with a spectral type of DAO.[2] The white dwarf is the dead remains of a star that existed but had died leaving behind Abell 31 and the white dwarf.[3]
Abell 31 is made mostly of hydrogen and oxygen gas with the red gas signifying hydrogen gas and the blue gas signifying the oxygen gas. The nebula has a blue central region being most of the nebula and a red ring around this blue region. The nebula due to its ancient age has its gas being dispersed into the interstellar medium.[4]
Some of the astronomical objects that exist around this nebula from our perspective include the Beehive Cluster (a cluster of about 1000 stars[5]), IC 523 (a galaxy), NGC 2731 (a spiral galaxy), M 67 star cluster (an old cluster of stars sometimes known as the King cobra cluster[6]) and many more.[7]
Abell31 (also known as Sh2-290 or PK 219+31.1) is an ancient planetary nebula in the constellation of Cancer. It is estimated to be about 2,000 light...
barium central star binary in the Type I diamond ring planetary nebula Abell 70". Monthly Notices of the Royal Astronomical Society. 419 (1): 39–49....
George O. Abell in 1958 using plates from POSS, and extended to the southern hemisphere by Abell, Corwin and Olowin in 1987. The name "Abell" is also commonly...
gives Abell 70 a diamond ring effect at its northern edge. Abell 7 Abell31Abell 36 Abell 78 "Anne's Image of the Day: Planetary Nebula Abell 70". Anne's...
Abell 2147 is a galaxy cluster in the Abell catalogue. It is located within the core of the Hercules Superclusters (SCI 160), within Serpens Caput, near...
[citation needed] On a larger scale still, Abell 2065, along with Abell 2061, Abell 2067, Abell 2079, Abell 2089, and Abell 2092, make up the Corona Borealis Supercluster...
Thomas Benjamin Abell (born 5 March 1994) is an English first-class cricketer who plays for Somerset County Cricket Club. Primarily a right-handed batter...
Robert Abell was born in about 1605 in Stapenhill, Derbyshire, England. He emigrated to New England in 1630 as part of the first wave of the Great Migration...
Abell 1576 BCG (short for Abell 1576 Brightest Cluster Galaxy) also known as PGC 2651193, is a supergiant elliptical galaxy and is the brightest cluster...
Earl C. "Tuffy" Abell (May 29, 1892 – May 26, 1956) was an American college football player and coach. He played football as a tackle at Colgate University...
Abell 1185 is a galaxy cluster located in the constellation Ursa Major. It is approximately 400 million light-years away from Earth and spans one million...
Joey Abell (born May 16, 1981) is an American professional boxer. Abell is a native of Minneapolis, Minnesota. He attended Champlin Park High School, and...
Abell 1413 is a massive and rich type I galaxy cluster straddling the border between the constellations Leo and Coma Berenices, with the projected comoving...
Abell 2152 is a bimodal galaxy cluster and one of three clusters comprising the Hercules Supercluster. It contains 3 BCGs; the S0 lenticular UGC 10204...
Scott P. Abell (born December 5, 1969) is an American football coach and former minor league baseball player. He is currently the head football coach...
Abell 33 (Also called A33 or the Diamond ring nebula) is a faint spherical planetary nebula located 2700 light years away in the constellation of Hydra...
Anthony Abell College (Malay: Maktab Anthony Abell; abbrev: AAC) is a government secondary school in Seria, a town in Belait District, Brunei. It was one...
from Earth. On a larger scale still, Abell 2065, along with Abell 2061, Abell 2067, Abell 2079, Abell 2089, and Abell 2092, make up the Corona Borealis Supercluster...
Burning Oasis and Psychotic Dreams – before Bateman was replaced by Dave Abell in time for the recording of a third, Horror Show. In 1987, Owen made way...
this and one committee member, Luc de Marré, resigned in protest. In 1983 Abell, Kurtz and Zelen (see below) published a reappraisal, rejecting the idea...
2024. Abell, Stig (21 June 2019). "Tinker, tailor, soldier, sprite". The Times Literary Supplement. Retrieved 9 March 2024. Mayo, Douglas (31 October...
Abell 78 is a planetary nebula located in the constellation of Cygnus. It has a fainter halo consisting mostly hydrogen, and an inner elliptical ring...
Global Information
