The constellations now known as Carina (the Keel), Puppis (the Stern), Pyxis (Compass), and Vela (the Sails) all belonged to a gigantic constellation called Argo. Its story goes like this.
Nebula's In Vela
NGC 2736 - Pencil Nebula
Officially known as NGC 2736, the Pencil Nebula is part of the huge Vela supernova remnant, located in the southern constellation Vela. Discovered by Sir John Herschel in the 1840s, the nebula's linear appearance triggered its popular name. The nebula's shape suggests that it is part of the supernova shock wave that recently encountered a region of dense gas. It is this interaction that causes the nebula to glow, appearing like a rippled sheet.
NGC 3132
NGC 3132 is a striking example of a planetary nebula. This expanding cloud of gas, surrounding a dying star, is known to amateur astronomers in the southern hemisphere as the "Eight-Burst" or the "Southern Ring" Nebula.
The name "planetary nebula" refers only to the round shape that many of these objects show when examined through a small visual telescope. In reality, these nebulae have little or nothing to do with planets, but are instead huge shells of gas ejected by stars as they near the ends of their lifetimes. NGC 3132 is nearly half a light year in diameter, and at a distance of about 2000 light years is one of the nearer known planetary nebulae. The gases are expanding away from the central star at a speed of 9 miles per second.
This image, captured by NASA's Hubble Space Telescope, clearly shows two stars near the center of the nebula, a bright white one, and an adjacent, fainter companion to its upper right. (A third, unrelated star lies near the edge of the nebula.) The faint partner is actually the star that has ejected the nebula. This star is now smaller than our own Sun, but extremely hot. The flood of ultraviolet radiation from its surface makes the surrounding gases glow through fluorescence. The brighter star is in an earlier stage of stellar evolution, but in the future it will probably eject its own planetary nebula.
In the Heritage Team's rendition of the Hubble image, the colors were chosen to represent the temperature of the gases. Blue represents the hottest gas, which is confined to the inner region of the nebula. Red represents the coolest gas, at the outer edge. The Hubble image also reveals a host of filaments, including one long one that resembles a waistband, made out of dust particles which have condensed out of the expanding gases. The dust particles are rich in elements such as carbon. Eons from now, these particles may be incorporated into new stars and planets when they form from interstellar gas and dust. Our own Sun may eject a similar planetary nebula some 6 billion years from now.
Open Cluster In Vela
Caldwell 85 (IC2391)
Caldwell 85 (IC2391) is the large open cluster. Dreyer calls it very large (50') and bright (mag. 2.5), consisting of 30 stars, 10 of them bright (about mag. 4 or brighter). The brightest is Omicron Velorum. It sits 1.8° NNW of Delta Velorum.
Planetary Destinations In Vela
HD 83443 (K0 V)
Parent Star: HD 83443 (K0 V) in the constellation of Vela is located at a distance of 142.01 Light Years from our Solar system. Co-ordinates of Right Ascension: 09 37 11.8281 & Declination: -43 16 19.939. The apparent Magnitude of the star is 8.23. The Inner Edge of Habitability Zone is 0.53 AU & the Outer Edge of Habitability Zone: 1.65 AU and the estimated stellar lifespan of the star is 20282 million years. Orbiting around HD 83443 is planet HD 83443 b the planet is believed to be a Cloudy Hot Jupiter and its exitence has been confirmed. The planets appearance is Silicate clouds over dark sodium haze and the planet is not within the Habitability Zone at Mean Orbital Distance of 0.038 AU. The estimated Mass ( M sin i ) of the planet is: 0.41 Jupiters . The planet Orbits around the star every 2.9853 ± 0.0009 Days and was discovered by Michel Mayor, Dominique Naef, Francesco Pepe, Didier Queloz, Nuno Santos, Stephane Udry and Michel Burnet. in 2000.
HD 73526 (G6 V)
Parent Star: HD 73526 (G6 V) in the constellation of Vela is located at a distance of 322.9 Light Years from our Solar system. Co-ordinates of Right Ascension: 08 37 16.4839 & Declination: -41 19 08.767. The apparent Magnitude of the star is 8.99. The Inner Edge of Habitability Zone is 0.74 AU & the Outer Edge of Habitability Zone: 2.31 AU and the estimated stellar lifespan of the star is 9423 million years. Orbiting around HD 73526 is planet HD 73526 b the planet is believed to be a Clarified Jovian, Eccentric and its exitence has been confirmed. The planets appearance is Blue and cloudless and the planet is not within the Habitability Zone at Mean Orbital Distance of 0.66 ± 0.05 AU. The estimated mass of the planet is 3.03 ± 0.3 Jupiters . The planet Orbits around the star every 190.5 ± 3 Days and was discovered by Tinney et al. on 13 Jun 2002.
HD 75289 (G0 V)
Parent Star: HD 75289 (G0 V) in the constellation of Vela is located at a distance of 94.39 Light Years from our Solar system. Co-ordinates of Right Ascension: 08 47 40.3894 & Declination: -41 44 12.452. The apparent Magnitude of the star is 6.35. The Inner Edge of Habitability Zone is 0.73 AU & the Outer Edge of Habitability Zone: 2.29 AU and the estimated stellar lifespan of the star is 8638 million years. Orbiting around HD 75289 is planet HD 75289 b the planet is believed to be a Cloudy Hot Jupiter and its exitence has been confirmed. The planets appearance is Silicate clouds over dark sodium haze and the planet is not within the Habitability Zone at Mean Orbital Distance of 0.046 AU. The estimated mass of the planet is 0.42 Jupiters . The planet Orbits around the star every 3.5096 Days and was discovered by Mayor et al . in 1999. HD75289 Planetary System
