Pegaz (sazvežđe)
| Sazvežđe | |
 | |
| Latinsko ime | Pegasus |
|---|---|
| Skraćenica | Peg |
| Genitiv | Pegasi |
| Simbolizuje | Pegaz |
| Rektascenzija | 23 |
| Deklinacija | +20[1] |
| Površina | 1121 sq. deg. (7) |
| Najsjajnija zvezda | Enif (ε Peg) (2,38m) |
| Meteorski rojevi | Pegazidi |
| Susedna sazvežđa | |
| Vidljivo u rasponu +90° i −60°. U najboljem položaju za posmatranje u 21:00 čas u oktobru. | |
Sazvežđe Pegaz je jedno od 88 savremenih sazvežđa i jedno od 48 sazvežđa koje navodi Klaudije Ptolomej u svom Almagestu. Predstavlja krilatog konja iz grčke mitologije, i zajedno sa obližnjim sazvežđima Persej, Andromeda, Cefej i Kasiopeja deo je predstave mita o Perseju.[2]
Zvezde[uredi | uredi izvor]
Najsjajnije zvezde Pegaza su nazvane najčešće u skladu sa položajem koji imaju na predstavi konja. Sva imena su arapskog porekla. Najsjajnija zvezda je Enif, ε Pegaza, a nema zvezde sa oznakom δ, jer je nakadašnja δ Pegaza — Alferac — po savremenoj klasifikaciji α Andromede.
| Oznaka | Ime | Magnituda | Spektralna klasa | Značenje |
|---|---|---|---|---|
| α | Markab | 2,49 | B9 | sedlo |
| β | Šiat | 2,4 — 2,8 | M2 | noga |
| γ | Algenib | 2,84 | B2 | pupak |
| ε | Enif | 2,4 | K2 | nos |
| ζ | Homam | 3,4 | B8 | čovek visokog duha |
| η | Matar | 3,02 | G2 | kišna srećna zvezda |
| θ | Baham | 3,5 | A2 | domaće životinje |
| μ | Sadalbari | 3,6 | M2 | srećna zvezda užitka |
Za osam zvezda koje pripadaju ovom sazvežđu se zna da imaju planete, a 51 Pegaza je prva zvezda nalik Suncu oko koje je detektovana ekstrasolarna planeta. IK Pegasi je najbliža zvezda kandidat za supernovu. Oko zvezde HD 209458 orbitira planeta HD 209458 b — prva ekstrasolarna planeta u čijoj je atmosferi detektovana vodena para.
Ostali objekti[uredi | uredi izvor]
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Od Mesjeovih objakata u Pegazu se nalazi zbijeno zvezdano jato M15. NGC 7331 je spiralna galaksija udaljena 14,249 megaparseka od Sunčevog sistema.
U sazvežđu Pegaz se nalazi i Stefanov kvintet — grupa od pet galaksija, od čega su četiri gravitaciono povezane dok se peta samo prividno nalazi u istoj oblasti.
Prikaz[uredi | uredi izvor]
Na noćnom nebu se lako uočava asterizam koji čine α, β i γ Pegaza i α Andromede (tzv. „veliki Pegazov kvadrat“). Strane kvadrata su dužine oko 10°. Dijagonalno od Alferaca počinje vrat Pegaza, koji se završava Enifom kao njuškom.
Vidi još[uredi | uredi izvor]
- Pegazidi — meteorski roj čiji je radijant u sazvežđu Pegaz
Reference[uredi | uredi izvor]
- ^ „Pegasus, Constellation Boundary”. The Constellations. International Astronomical Union. Pristupljeno 13. 2. 2014.
- ^ Thurston, Hugh (1996). Early Astronomy. Springer. str. 3. ISBN 978-0-387-94822-5.
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Spoljašnje veze[uredi | uredi izvor]
Vikimedijina Ostava ima datoteke za članak:
- http://www.astronomytoday.com/astronomy/pegasus.html
- http://www.astro.wisc.edu/~dolan/constellations/constellations/Pegasus.html Arhivirano na sajtu Wayback Machine (7. maj 2016)
- http://www.topastronomer.com/StarCharts/Constellations/Pegasus.php Arhivirano na sajtu Wayback Machine (4. septembar 2011)
- The Deep Photographic Guide to the Constellations: Pegasus
- The clickable Pegasus
- Star Tales – Pegasus
- Warburg Institute Iconographic Database (medieval and early modern images of Pegasus)
| Državne | |
|---|---|
| Ostale | |
