... Солнце . ...

Astronomy Picture of the Day . ... 10.11.2006 . ... Credit: Phil Jones Explanation: Enjoying Wednesday's transit of Mercury from Dallas, Texas, astronomer Phil Jones recorded this detailed image of the Sun. Along with a silhouette of the innermost planet, a network of cells and dark filaments can be seen against a bright solar disk with spicules and prominences along the Sun's edge. ... 2005 2006 . ... NASA Web Site Statements, Warnings, and Disclaimers . ... Publications with keywords: transit . ...

... (FIRPO-TIRGO) w/error AR, Sun Aug 24 10:34:33 MET DST 1997 ############################################################# Sp:K4 irc10007 J 1.509 0.028 irc10007 J 1.65+/- 0.06 [ 0.05 ] 0.14 0.09 irc10007 H 0.961 0.006 irc10007 H 1.03+/- 0.04 [ 0.04 ] 0.07 0.05 irc10007 K 0.606 0.040 irc10007 K 0.85+/- 0.05 [ 0.03 ] 0.24 0.09 Sp:M2 irc10024 J 2.099 0.028 irc10024 J 2.31+/- 0.04 [ ...

Observers in Northern Ireland will have an opportunity, weather permitting, to observe a relatively rare astronomical event on Wednesday, 7th May, when a transit of Mercury will take place. ... We will have to wait until 9 May 2016 for another opportunity to see Mercury passing in front of the Sun's disc from Europe. ... Mercury passes closest to the Sun's centre at 8:52a.m. at which time it will be at a distance of about one-third the solar diameter from the Sun's centre. ...

... Индексы солнечной активности . ... Наблюдения NGDC . Солнечные регионы . ... Среднегодичные индексы солнечной активности . Визуальные индексы солнечной активности по версии Национального центра геофизических данных . ... 0.06 . ...

... Tonight's Sky . ... Observing . ... An artificial comet holds secrets to Earths life . ... As seen by Rosetta: comet surface variations . ... Rosetta's lander will obtain the first images taken from a comet's surface and will provide the first analysis of a comet's composition by drilling into the surface. ... Only registered members of Astronomy.com are allowed to comment on this article. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... ОТЧЕТЫ СТУДЕНТОВ О ПРАКТИКЕ В САО . Лето 2001 года . ОТЧЕТ . ... Золотухина Ивана . ... 0.07 . ...

Mercury Spring 2012 Table of Contents . ... Image courtesy Astronomy Camp. ... Yet, the benefits of inspiration and education are long-term. ... For nearly three decades I have led a group of dedicated students and educators in an inspiring educational program called "Astronomy Camp." ... If you enjoyed this excerpt from a feature article and would like to receive our quarterly Mercury magazine, we invite you to join the ASP and receive 4 issues a year. ...

... The Magnetic Sun . ... Galileo had guessed they were clouds floating in the Sun's atmosphere, obscuring some of its light. ... It turned out that the Sun has a polar field somewhat like the Earth's, but that it reverses its polarity during each 11-year cycle. ... Sunspot fields were evidently produced by electric currents, and it was well known that such currents could be generated by a " dynamo process ," by the motion of an electric conductor (e.g. the flow of solar plasma) through a magnetic...

King 13 2.5700 +61.1775 10.0 0.56 0.04 12.36 0.27 2960 400 8.85 0.05 NGC 136 7.8858 +61.5083 4.0 0.70 0.09 13.59 0.14 5220 350 8.40 0.05 Berkeley 19 81.0117 +29.5711 5.0 0.61 0.05 0.72 12.38 0.40 3000 600 9.25 0.05 Czernik 21 81.6708 +36.0136 6.0 0.72 0.02 0.56 11.82 0.20 2300 200 9.55 0.05 Stock 8 82.0367 +34.4314 8.0 1.21 0.04 0.57 9.84 0.20 900 110 7.50 Kronberger 1 82.0917 +34.7733 5.0 0.43 ...

... Variation of systematic errors for USNO A2 (in mas per year) 23 .914 0.082 0.250 0.418 0.586 0.753 0.921 1.089 1.257 1.425 1.593 4 4. 3. 3. 3. 3. 3. 3. 3. 3. 3. 15 ± 7± 1± 3± 3± 10 ± 10 ± 11 ± 6± 10 ± 12 ± and their errors USNO UCAC USNO UCAC A2.0 2 3 B1.0 4 (1998) (2006) (2003) (2012) 37 27 11 4 732 529 778 501 050 078 775 387 (34 610 829) (17 209 447) (9 744 401) () Distribution of observations ( ...

... M ercury is the closest planet to the Sun and the eighth largest. ... Heraclitus even believed that Mercury and Venus orbit the Sun, not the Earth. ... The perihelion of its orbit precesses around the Sun at a very slow rate. 19th century astronomers made very careful observations of Mercury's orbital parameters but could not adequately explain them using Newtonian mechanics. ... Actually Earth's density is due in part to gravitational compression; if not for this, Mercury would be denser than Earth...

Microsymposium 38, MS083, 2003 (A4 format) MERCURY: LOCAL VARIATIONS OF THE PHOTOMETRIC RELIEF. ... Because of trajectory and pointing angle constraints the planet could be observed from Mariner 10 only over a small range of phase angles between about 75o and 110o. Therefore the photometric investigations are restricted to measuring the distribution of brightness on the Mercurian disk. ... Raw versions of real-time processing pictures FDS 0000984 and FDS 0000986 were used (images 196 and 202). ...

O-C for observatory with code - 046. August , 2003 . ... 0.37 0.65 +/- 0.06 +/- 0.02 Internal error of single observation 0.12 0.04 ----------------------Compressed Ephemeris DE200/LE200 -------------- MP Obs Dynamical Time RA ( O-C )cosDEC DEC ( O-C ) h m s ' 65668 046 2003 8 27.963979 0 34 05.452 -0.33 +20 20 00.53 0.01 65668 046 2003 8 27.967079 0 34 05.376 -0.07 +20 20 01.42 0.07 65668 046 2003 8 27.967869 0 34 05.357 0.00 +20 20 01.62 0.05 65668 046 ...

... We thank the Swift team for their rapid scheduling of this observation. ... 2455705.20851 V 14.15 0.03 2455707.83079 V 14.10 0.03 2455710.84028 V 13.53 0.02 2455713.64631 V 13.66 0.02 2455714.65479 V 14.11 0.03 2455714.71823 V 14.12 0.02 2455714.78596 V 14.20 0.02 2455717.39593 V 14.37 0.03 2455726.62861 V 14.83 0.04 2455727.16343 V 14.57 0.04 2455730.50586 V 14.57 0.03 2455730.57329 V 14.56 0.03 2455730.70360 V 14.66 0.04 2455738.32865 V 14.00 0.02 2455742.86146 V 14.21 ...