... Ce qui est admirable, ce n'est pas que le champ des Гїtoiles soit si vaste, c'est que l'homme l'ait mesurГї" , Гїcrivait Anatole France. ... La question reprend souvent l'image du moyen mnГїmotechnique le plus marquant, utilisГї par les vulgarisateurs pour parler de la profondeur des gouffres cosmiques : est-il vrai que nombre d'Гїtoiles visibles dans le ciel sont dГїjГ mortes ? ... La nuit risque d'Г?tre trop courte pour dГїrouler le fil d'Ariane des distances dans l'Univers ! ...

... Jupiter, Saturn and their moons. ... Massive stars use up their fuel much faster - in some cases less than 100 million years. ... Based on how evolution took place on Earth, why is it unlikely that life would exist around massive stars? ... 3.0 Observing - clusters and galaxies Open clusters are formed when a large cloud of galactic gas (up to dozens of light years across) condenses to form dozens or hundreds of stars at once. ... To use the model stand nea the Earth post and look towards the sun. ...

Trudy GAISH, vol. LXV, 1996 . Abstracts . The global distribution of average (5 O x 5 O ) depths . of Mohorovicic discontinuity on the Earth . ... Such analysis allows detecting whether the sources of the largest anomalies reside within the Earth's core. This is possible if the limit depths of the sources exceed the depths of the core-mantle boundary. ... by Pasinok S.L. Influence of the Earth’s cover on the polar free oscillation of the Earth’s inner core is considered. ...

... The analysis shows, that asteroid ­ rubble pile loses its fast fragments in no time but the retaining fragments forms a compact structure immersed in dust ­ gas atmosphere, created by interaction of interplanetary medium with dispersed product of collisional evolution of asteroid. By interaction of an asteroid ­ rubble pile with interplanetary medium structures asteroid can increase its brightness on account of blowed up dust simulating phenomenon of distant comet's brightening. ...

. Pulkovo Observatory of Russian Academy of Sciences is situated . near Saint-Petersburg. It was founded in 1839. 196140, Saint-Petersburg, Pulkovskoye chaussee 65/1 . English version . Russian version . This page has been accessed times since May 1, 1999.

... This paper describes the capabilities of GIM2D, an IRAF package for the quantitative morphology analysis of distant galaxies. GIM2D automatically decomposes all the objects on an input image as the sum of a S?rsic profile and an exponential profile. ... GIM2D (Galaxy IMage 2D) is an IRAF package written to perform detailed bulge/disk decompositions of low signal-to-noise images of distant galaxies. ... The segmentation image is used by GIM2D to deblend galaxy images. ... Create a residual image. ...