Explanation: Enjoying the 2004 Transit of Venus from Stuttgart, Germany, astronomer Stefan Seip recorded this fascinating, detailed image of the Sun. Revealing a network of cells and dark filaments against a bright solar disk with spicules and prominences along the Sun's limb, his telescopic picture was taken through an H-alpha filter. The filter narrowly transmits only the red light from hydrogen atoms and emphasizes the solar chromosphere -- the region of the Sun's atmosphere immediately above its photosphere or normally visible surface. Here, the dark disk of Venus seems to be imitating a giant sunspot that looks perhaps a little too round. But in H-alpha pictures like this one, sunspot regions are usually dominated by bright splotches (called plages) on the solar chromosphere.

<<  Iyun'  >> Pn Vt Sr Cht Pt Sb Vs   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30         1995   1996   1997 1998   1999   2000 2001   2002   2003 2004   2005   2006 2007   2008   2009 2010   2011   2012 2013   2014   2015 2016   2017   2018 2019   2020   2021 2022   2023   2024

Yanvar' Fevral' Mart Aprel' Mai Iyun' Iyul' Avgust Sentyabr' Oktyabr' Noyabr' Dekabr'

Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: sunspot - Venera - Prohozhdenie - Solnce - Solnechnye pyatna - Hromosfera - H-alpha Publikacii so slovami: sunspot - Venera - Prohozhdenie - Solnce - Solnechnye pyatna - Hromosfera - H-alpha
Sm. takzhe: Vozvrashenie znamenitoi aktivnoi oblasti i vspyshka klassa X na Solnce Vybros solnechnogo volokna AR 3664 na zahodyashem Solnce AR 3664: gigantskaya gruppa solnechnyh pyaten Planety i polnoe zatmenie Smotrya v storonu s solnechnogo zonda "Parker" Okruzhaya Solnce Vse publikacii na tu zhe temu >>