... Many very young stars, such as the Proplyds (short for ``protoplanetary disks'') in the Orion nebula, are apparently veiled in cloaks of gas and dust, whereas mature mainsequence stars are not. ...
... Armagh Planetarium Unveils New Hubble Images . Solar Eclipse Friday 1 August 2008 . ... Melotte15 Inside The Heart Nebula . The Bubble and M52 from Dublin skies . ... The Horsehead Nebula . Total Lunar Eclipse of 21 February 2008 . Comet Tuttle . ...
... like planets.ТљThe best known exampleТљis probably the Ring Nebula, M57, in Lyra ... considered is "Shell nebulae" which has the advantage of retaining the term 'nebula ...
... Nice amateurТљphoto: http://www.space.com/25169-gorgeous-rosette-nebula-amateur-photo.html?cmpid=557585 . ... spaceflight-revealed-Firm-unveils-concept-space-transport-set-launch-2017.html ТљThey'd better get it goingТљquickly, with the ...
... rely on the assumption that no significant veiling is present (Ghandour et al ... Although veiling does not modify the absolute amplitude or shape of the Zeeman ... 65 1637 is associated with the reflection nebula NGC 7129 that envelops a young and ...
... 3.3.8 M.D. Smith, Research Astronomer The evolution of stars after leaving both the main sequence and the asymptotic giant branch involves the transition into a proto-planetary nebula (PPN) before developing into a planetary nebula (PN). ...