51 Pegasi b (abbreviated 51 Peg b), sometimes though unofficially named Bellerophon, is an extrasolar planet approximately 50 light-years away in the constellation of Pegasus. 51 Pegasi b was the first planet to be discovered orbiting a main sequence star, the Sun-like 51 Pegasi (the first exoplanets at all were discovered in 1992 by Aleksander Wolszczan around pulsar PSR 1257), and marked a breakthrough in astronomical research. It is the prototype for a class of planets called hot Jupiters.
The name 51 Pegasi b is the official astronomical name of the planet. As with all extrasolar planets, the 'b' is used to indicate that this planet was the first discovered orbiting its parent star. Further undiscovered planets of 51 Pegasi would be designated c, d, e, f, and so on. All extrasolar planets have lowercase letters to differentiate from companion stars in the system (which are designated with an uppercase letter).
Though not officially recognized, and not used by astronomers, 51 Pegasi b is sometimes referred to as "Bellerophon." This name comes from the Greek hero Bellerophon, who tamed Pegasus (the Winged Horse). This has direct relations with the constellation in which lies the planet (Pegasus). This name is usually used as the informal name to show the similarities to the planets of the Solar System. The same argument and association with the constellation of host star was used to suggest informal names for other extrasolar planets
Bukas ay may bagong araw
Na sisikat na bahagya ang ningning
Kahit ang ulap nagpapakulimlim
Pilit sumisilip ang gintong liwanag
Sa likod ng tabing
Pakiusap sa'yo kung susulyapan
Na kahit lihim lang
Sana'y may ngiting para sa akin
Pakiusap sa'yo kung lilingon ka man
May maiiwanang buntong-hiningang
May himig ng awit na hatid ng hangin
Tulad ng ngiti mong matipid sumilay
Pilit sumisilay na paminsan minsan
Hindi man malimit, hindi man palagi
Pagka't ang ngiti mong sumilay sa labi
Ay tulad ng ngiti ng araw
Sa likod ng ulap
Pakiusap sa'yo kung susulyapan
Na kahit lihim lang
Sana'y may ngiting para sa akin
Pakiusap sa'yo kung lilingon ka man
May maiiwanang buntong-hiningang
Wala namang iba ngayon sa puso ko
Mula ng makilala ko ang tulad mo
Dati di ko pansin ang ‘yong paglalambing
Pag-ibig napala at yu’y para sakin
Ligaya kang tunay sa damdamin
Ngayo’y naging makulay ang aking mundo
Lahat ay nag-iba yan ay dahil sayo
Langit ang sandali pag kapiling ka na
Lagi ng may ngiti pag nakikita ka
Sana tayo’y di na magwalay pa
O kay tagal ko ring ikaw ay pinangarap
Sana’y wag sasaktan yan ang aking pakiusap
Dahil kung ika’y mawawala wala ring dahilan
Di na iibig pa kailan pa man
Ngayo’y naging makulay ang aking mundo
Lahat ay nag-iba yan ay dahil sayo
Langit ang sandal pag kapiling ka na
Lagi ng may ngiti pag nakikita ka
Sana tayo’y di na mag walay pa
O kay tagal ko ring ikaw ay pinangarap
Sana’y wag sasaktan yan ang aking pakiusap
Dahil kung ika’y mawawala wala ring dahilan
Di na iibig pa kailan pa man
O kay tagal ko ring ikaw ay pinangarap
Sana’y wag sasaktan yan ang aking pakiusap
Dahil kung ika’y mawawala wala ring dahilan
Di na iibig pa kailan pa man
Ooohhhh