Golub (sazvežđe)
Golub je sazvežđe južne hemisfere koje je u 16. veku uveo holandski astronom Petar Plancije. Golub se nalazi u blizini ranijeg sazvežđa Argo Navis (Argo, brod Argonauta) koje je danas podeljeno na Pramac, Krmu i Jedra, tako da može da predstavlja goluba koji je pomogao Argonautima da prođe kroz Bosfor. Druga predstava je biblijska — golubica koju je Noje poslao da proveri da li je prestao potop, a ona se vratila noseći maslinovu grančicu kao znak da se voda povukla. Sam Plancius je sazvežđe prvobitno nazvao Columba Noae, Nojev golub.
| Sazvežđe | |
 | |
| Latinsko ime | Columba |
|---|---|
| Skraćenica | Col |
| Genitiv | Columbae |
| Simbolizuje | (Nojevu) golubicu |
| Rektascenzija | 6 |
| Deklinacija | -35[1] |
| Površina | 270 sq. deg. (54) |
| Najsjajnija zvezda | Alfa Goluba (Fakt) (2,65m) |
| Meteorski rojevi | nema |
| Susedna sazvežđa | |
| Vidljivo u rasponu +45° i −90°. U najboljem položaju za posmatranje u 21:00 čas u februaru. | |
Zvezde uredi
Najsjanija zvezda ovog sazvežđa je Alfa Goluba, nazvana još i Fakt (od arapskog Al-Fakhita, golubica), magnitude 2,65. Predstavlja dvojnu zvezdu, sjajnija komponenta je superdžin spektralne klase B7IVe, sa udaljenim i tamnim pratiocem.
Beta Goluba (Wazn ili Wezn, teg na arapskom) je druga najsjajnija zvezda Goluba, magnitude 3,12. Ovaj džin K-tipa se nalazi na oko 86 svetlosnih godina od Sunčevog sistema.
Mi Goluba je zvezda koja je najverovatnije izbačena iz sistema jote Oriona pri sudaru dva binarna sistema. Pripada O spektralnoj klasi, najređoj na glavnom nizu HR dijagrama.
Objekti dubokog neba uredi
U sazvežđu Golub se nalazi Sejfertova galaksija NGC 1808.
Reference uredi
- ^ „Columba, constellation boundary”. The Constellations. International Astronomical Union. Arhivirano iz originala 5. 6. 2013. g. Pristupljeno 27. 2. 2014.
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- „SV Leonis Minoris – Variable Star of RS CVn type”. SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Pristupljeno 20. 10. 2012.
- „21 Leonis Minoris – Variable Star of delta Sct type”. SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Pristupljeno 15. 10. 2012.
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- „LHS 2216 – High Proper Motion Star”. SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Pristupljeno 21. 10. 2012.
- „R Leonis Minoris – Variable Star of Mira Ceti type”. SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Pristupljeno 22. 10. 2012.
- „RY Leonis Minoris – Pulsating White Dwarf”. SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Pristupljeno 22. 10. 2012.
- „S Leonis Minoris – Variable Star of Mira Ceti type”. SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Pristupljeno 22. 10. 2012.
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Spoljašnje veze uredi
Vikimedijina Ostava ima datoteke za članak:
- The Deep Photographic Guide to the Constellations: Columba
- The clickable Columba
- Star Tales – Columba
- Lost Stars, by Morton Wagman, publ. Mcdonald & Woodward Publishing Company, First printing September 2003, ISBN 0-939923-78-5 , page 110
- Sazvežđe Golub Arhivirano na sajtu Wayback Machine (3. januar 2012) na TopAstronomer.com (jezik: engleski)
