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Created page with "{{Night Sky | image = | designation =Barnard 142/143 | rightascension =19<sup>h</sup> 39<sup>m</sup> 42<sup>s</sup><ref name=simbad>[http://simbad.u-strasbg.fr/..."
{{Night Sky
| image =
| designation =Barnard 142/143
| rightascension =19<sup>h</sup> 39<sup>m</sup> 42<sup>s</sup><ref name=simbad>[http://simbad.u-strasbg.fr/simbad/sim-id?Ident=barnard+142&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id Barnard 142] from the [http://simbad.u-strasbg.fr/simbad SIMBAD Astronomical Database]</ref>
| declination =+10° 31′<ref name=simbad/>
| distance =2,000 ly<ref name=apod>[https://apod.nasa.gov/apod/ap030820.html The E Nebula in Aquila] from apod.nasa.gov</ref>
| constellation =Aquila
| type =Dark nebula
| dimensions =40'<ref name=simbad/>
| magnitude =
| redshift =
| radvelocity =
| propmotion =
| parallax =
}}
The '''E nebula''' (Barnard 142, Barnard 143) is a [[dark nebula]] in the [[constellation]] of [[Aquila]].<ref name=apod/> The nebula can be found not far from the [[star]] [[Altair]] and is best observed during the summer months.<ref>[http://cs.astronomy.com/asy/m/nebulae/424656.aspx Barnard 143 (B143) - Dark Nebula in Aquila] from cs.astronomy.com</ref> The E nebula is a combination of two nebulae that E. E. Barnard described, which he designated Barnard 142 and Barnard 143 in his catalogue. Barnard 143 has the appearance of a [[square]] with one side missing. This with the southern Barnard 142 produces a shape reminiscent of a capital E, giving the nebula its name.
Located 2,000 [[light year]]s away, the nebula appears around half a degree across, similar to that of the [[Full moon]].<ref name=apod/> This means it is approximately 0.01 ly wide. The nebula is a [[dark nebula]], meaning it is visible because it obscures (blocks) the light of background stars.
==References==
{{reflist}}
{{Nebulae}}
[[Category:Astronomy]]
[[Category:Nebulae]]
| image =
| designation =Barnard 142/143
| rightascension =19<sup>h</sup> 39<sup>m</sup> 42<sup>s</sup><ref name=simbad>[http://simbad.u-strasbg.fr/simbad/sim-id?Ident=barnard+142&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id Barnard 142] from the [http://simbad.u-strasbg.fr/simbad SIMBAD Astronomical Database]</ref>
| declination =+10° 31′<ref name=simbad/>
| distance =2,000 ly<ref name=apod>[https://apod.nasa.gov/apod/ap030820.html The E Nebula in Aquila] from apod.nasa.gov</ref>
| constellation =Aquila
| type =Dark nebula
| dimensions =40'<ref name=simbad/>
| magnitude =
| redshift =
| radvelocity =
| propmotion =
| parallax =
}}
The '''E nebula''' (Barnard 142, Barnard 143) is a [[dark nebula]] in the [[constellation]] of [[Aquila]].<ref name=apod/> The nebula can be found not far from the [[star]] [[Altair]] and is best observed during the summer months.<ref>[http://cs.astronomy.com/asy/m/nebulae/424656.aspx Barnard 143 (B143) - Dark Nebula in Aquila] from cs.astronomy.com</ref> The E nebula is a combination of two nebulae that E. E. Barnard described, which he designated Barnard 142 and Barnard 143 in his catalogue. Barnard 143 has the appearance of a [[square]] with one side missing. This with the southern Barnard 142 produces a shape reminiscent of a capital E, giving the nebula its name.
Located 2,000 [[light year]]s away, the nebula appears around half a degree across, similar to that of the [[Full moon]].<ref name=apod/> This means it is approximately 0.01 ly wide. The nebula is a [[dark nebula]], meaning it is visible because it obscures (blocks) the light of background stars.
==References==
{{reflist}}
{{Nebulae}}
[[Category:Astronomy]]
[[Category:Nebulae]]