Jump to content

Columba (constellation)

Coordinates:Sky map06h00m00s,−35° 00′ 00″
From Wikipedia, the free encyclopedia
Columba
Constellation
Columba
AbbreviationCol
GenitiveColumbae
Pronunciation/kəˈlʌmbə/,
genitive/kəˈlʌmb/
Symbolismthedove
Right ascension05h03m53.8665s06h39m36.9263s[1]
Declination−27.0772038°–−43.1116486°[1]
Area270 sq. deg. (54th)
Main stars5
Bayer/Flamsteed
stars
18
Stars withplanets1
Stars brighter than 3.00m1
Stars within 10.00 pc (32.62 ly)0
Brightest starα Col(Phact) (2.65m)
Messier objects0
Meteor showers0
Bordering
constellations
Lepus
Caelum
Pictor
Puppis
Canis Major
Visible at latitudes between +45° and −90°.
Best visible at 21:00 (9 p.m.) during the month ofFebruary.

Columbais a faintconstellationdesignated in the late sixteenth century, remaining in official use, with its rigid limits set in the 20th century. Its name isLatinfordove.It takes up 1.31% of the southern celestial hemisphere and is just south ofCanis MajorandLepus.

History

[edit]
The constellation Columba as it can be seen by the naked eye.
  • Early 3rd century BC:Aratus's astronomical poemPhainomena(lines 367–370 and 384–385) mentions faint stars where Columba is now but does not fit any name or figure to them.
  • 2nd century AD:Ptolemylisted 48 constellations in theAlmagestbut did not mention Columba.
  • c. 150–215 AD:Clement of Alexandriawrote in hisLogos Paidogogos[2]"Αἱ δὲ σφραγῖδες ἡμῖν ἔστων πελειὰς ἢ ἰχθὺς ἢ ναῦς οὐριοδρομοῦσα ἢ λύρα μουσική, ᾗ κέχρηται Πολυκράτης, ἢ ἄγκυρα ναυτική," (= "[when recommending symbols for Christians to use], let oursealsbe a dove or a fish or a ship running in a good wind or a musical lyre... or a ship's anchor... "), with no mention of stars or astronomy.
  • 1592 AD:[3]Petrus Planciusfirst depicted Columba on the small celestial planispheres of his large wall map to differentiate the 'unformed stars' of the large constellationCanis Major.[4]Columba is also shown on his smaller world map of 1594 and on early Dutch celestial globes. Plancius named the constellationColumba Noachi( "Noah's Dove "), referring to the dove that gave Noah the information that theGreat Floodwas receding. This name is found on early 17th-century celestial globes and star atlases.
The constellation seen as "Columba Noachi" inUrania's Mirror(1825).
  • 1592:Frederick de Houtmanlisted Columba as "De Duyve med den Olijftack" (= "the dove with the olive branch" )
  • 1603:Bayer'sUranometriawas published. It includes Columba as Columba Noachi.[5]
  • 1624:Bartschiuslisted Columba in hisUsus Astronomicusas "Columba Nohae".
  • 1662:CaesiuspublishedCoelum Astronomico-Poeticum,including an inaccurate Latin translation of the above text of Clement of Alexandria: it mistranslated "ναῦς οὐριοδρομοῦσα" as Latin "Navis coelestis cursu in coelum tendens" ( "Ship of the sky following a course in the sky" ), perhaps misunderstanding "οὐριο-" as "up in the air or sky" by analogy with οὐρανός = "sky".
  • 1679:Halleymentioned Columba in his workCatalogus Stellarum Australiumfrom his observations onSt. Helena.
  • 1679:Augustin Royerpublished a star atlas that showed Columba as a constellation.
  • c.1690:Hevelius'sProdromus Astronomiaeshowed Columba but did not list it as a constellation.
  • 1712 (pirated) and 1725 (authorized):Flamsteed's workHistoria Coelestis Britannicashowed Columba but did not list it as a constellation.
  • 1757 or 1763:Lacaille listedColumba as a constellation and catalogued its stars.
  • 1889: Richard H. Allen,[6]misled by Caesius's mistranslation, wrote that the Columba asterism may have been invented in Roman/Greek times, but with a footnote saying that it may have been another star group.
  • 2001: Ridpath and Tirion wrote that Columba may also represent the dove released byJason and the Argonautsat theBlack Sea's mouth; it helped them navigate the dangerousSymplegades.[3]
  • 2007: The author P.K. Chen wrote (his opinion) that, given the mythological linkageof a dovewith Jason and the Argonauts, and the celestial location of Columba overPuppis(part of the old constellationArgo Navis,the ship of the Argonauts), Columba may have an ancient history although Ptolemy omits it.[7][8]
  • 2019–20:OSIRIS-RExstudents discovered ablack holein the constellation Columba, based on observing X-ray bursts.[9]

In theSociety Islands,Alpha Columbae (Phact) was calledAna-iva.[10]

Features

[edit]

Stars

[edit]

Columba is rather inconspicuous, the brightest star,Alpha Columbae,being only ofmagnitude2.7. This, a blue-white star, has a pre-Bayer,traditional, Arabic namePhact(meaning ring dove) and is 268 light-years from Earth. The only other named star isBeta Columbae,which has the alike-status nameWazn.It is an orange-hued giant star of magnitude 3.1, 87 light-years away.[11]

The constellation contains therunaway starμ Columbae,which was probably expelled from theι Orionissystem.

ExoplanetNGTS-1band its star NGTS-1 are in Columba.

General radial velocity

[edit]

Columba contains the solarantapex– the opposite to the net direction of the solar system[12](noting the local spiral arm of the Milky Way itself is responsible for most of our change of position over time).[citation needed]

Deep-sky objects

[edit]

NGC 1851aglobular clusterin Columba appears at 7th magnitude in a far part of our galaxy as is 39,000 light-years away - it is resolvable south of at greatest latitude +40°N in medium-sized amateur telescopes (under good conditions).[11]

See also

[edit]

Citations

[edit]
  1. ^ab"Columba, constellation boundary".The Constellations.International Astronomical Union.Retrieved27 February2014.
  2. ^B. Schildgen (2016).Heritage or Heresy: Preservation and Destruction of Religious Art and Architecture in Europe.Springer. p. 63.ISBN978-0-230-61315-7.
  3. ^abRidpath & Tirion 2001,pp. 120–121.
  4. ^Ley, Willy (December 1963)."The Names of the Constellations".For Your Information.Galaxy Science Fiction.pp. 90–99.
  5. ^Canis Maior and Columba in Bayers Uranometria 1603 (Linda Hall Library)Archived2007-04-27 at theWayback Machine
  6. ^Richard H. Allen (1899) Star Names: Their Lore and Meaning, pp. 166–168
  7. ^P.K. Chen (2007) A Constellation Album: Stars and Mythology of the Night Sky, p. 126 (ISBN978-1-931559-38-6).
  8. ^Chen, p. 126.
  9. ^"NASA's OSIRIS-REx Students Catch Unexpected Glimpse of Newly Discovered Black Hole".NASA.28 February 2020.
  10. ^Makemson 1941,p. 281.
  11. ^abRidpath & Tirion 2017,p. 122.
  12. ^Madore, Barry F. (14 August 2002)."Astronomical Glossary".NASA/IPAC Extragalactic Database.Retrieved31 January2023.

References

[edit]
[edit]