... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2008 February 7 . NGC 4013 and the TidalStream . ... Astronomers argue that the newly discovered tidalstream also explains a warped distribution of neutral hydrogen gas seen in radio images of NGC 4013 and offers parallels to the formation of our own Milky Way galaxy. ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ...
... October 4, 1998 . One Small Step . Credit: Apollo 11 Crew , NASA . Explanation: On July 20th, 1969, a human first set foot on the Moon . ... It has been estimated that one billion people world-wide watched Armstrong's first step - making the live transmission from a camera mounted on the lunar lander one of the highest rated television shows ever. Upon setting foot on the moon, Armstrong said: "That's one small step for (a) man, one giant leap for mankind." ... About APOD > . ...
Supernova 2000dx in UGC 1775 . This page is devoted to information on Supernova 2000dx in UGC 1775 Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main page . Information on the original web pages for many of these images can be found on the Supernova links web page. ... AUDE has a 2000dx page in French [ Translate ] . ... 15.3 . ... vsnet-alert 5375 ] SN 2000dx (Ewa) brighter! ... vsnet-campaign-sn 110 ] SN 2000dx bright: update . ...
... Here is a brief outline of the current theory of the events in the early history of the solar system: . A cloud of interstellar gas and/or dust (the "solar nebula") is disturbed and collapses under its own gravity. ... The gas cools off enough for the metal, rock and (far enough from the forming star) ice to condense out into tiny particles. (i.e. some of the gas turns back into dust). ... Once the larger of these particles get big enough to have a nontrivial gravity, their growth accelerates. ...
Moscow Astronomical Plate Archives: . Contents, Digitization, Current and Possible Applications . ... We describe the astronomical plate archives in Moscow and Zvenigorod and the existing digitization projects. ... 2 The Plate Archive of the Sternberg Institute . The contents of the most important Moscow astronomical plate archive, that of the Sternberg Astronomical Institute, was briefly presented in Shugarov et al. [1] in 1999. ... THE MOSCOW PLATE COLLECTION (STERNBERG INSTITUTE) . ...
... АРХИВ, ВЫПУСК N4, 15.10.1999 г. Примечания: . ... NEW! - страница внесена не более 10 дней назад, . ... Оценено и сдано в архив! . ... Специальная Астрофизическая Обсерватория (САО) . ... Институт земного магнетизма и ионосферы РАН (ИЗМИРАН) . ... Электронный планетарий. ... Днепропетровский планетарий new! ... Астрономическое отделение и обсерватория Казанского Университета NEW! ... Нижегородский планетарий NEW! ... НАЗАД, В СПИСОК КАТЕГОРИЙ (титульная страница AstroTop-100) . ...
... The distance scales of the objects are matched both by comparing the first derivatives of the angular velocity determined separately from radial velocities and proper motions and by the statistical-parallax method. ... Good agreement between the inferred 0 and our calculations based on space velocities suggests that the Lindblad relation holds throughout the entire sample volume. ... Brandt and Blitz (1993) published the distances and radial velocities for a total of 206 H II-regions. ... Astron. ...