Subj : Daily APOD Report To : All From : Ben Ritchey Date : Sun Apr 07 2019 08:09:17 Astronomy Picture of the Day Astronomy Picture of the Day Discover the cosmos! [1] Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2019 April 7 [2] A Scorpius Sky Spectacular Image Credit & Copyright: Stéphane Guisard [3] , TWAN [4] Explanation: If Scorpius looked this good to the unaided eye, humans might remember it better. Scorpius [5] more typically appears as a few bright stars in a well-known but rarely pointed out zodiacal [6] constellation [7] . To get a spectacular image like this [8] , though, one needs a good camera [9] , color filters [10] , and a digital image processor [11] . To bring out detail, the featured image [12] not only involved long duration exposures taken in several colors, but one exposure in a very specific red color [13] emitted by hydrogen [14] . The resulting image [15] shows many breathtaking features. Vertically across the image left is part of the plane [16] of our Milky Way Galaxy [17] . Visible there are vast clouds of bright stars and long filaments of dark dust [18] . Jutting out diagonally from the Milky Way [19] in the image center are dark dust bands known as the Dark River [20] . This river connects to several bright stars on the right that are part of Scorpius' head and claws [21] , and include the bright star Antares [22] . Above and right of Antares is an even brighter planet: Jupiter. Numerous red emission nebulas [23] and blue reflection nebulas [24] are visible throughout the image. Scorpius [25] appears prominently in southern skies after sunset during the middle of the year. Tomorrow's picture: saturnian surprise ------------------------------------------------------------------------------- < [26] | Archive [27] | Submissions [28] | Index [29] | Search [30] | Calendar [31] | RSS [32] | Education [33] | About APOD [34] | Discuss [35] | > [36] ------------------------------------------------------------------------------- Authors & editors: Robert Nemiroff [37] (MTU [38] ) & Jerry Bonnell [39] (UMCP [40] ) NASA Official: Phillip Newman Specific rights apply [41] . NASA Web Privacy Policy and Important Notices [42] A service of: ASD [43] at NASA [44] / GSFC [45] & Michigan Tech. U. [46] ---------- Site notes: [1] archivepix.html [2] image/1904/scorpio_guisard_1328.jpg [3] http://sguisard.astrosurf.com/ [4] http://www.twanight.org/newTWAN/index.asp [5] http://www.allthesky.com/constellations/scorpius/ [6] http://en.wikipedia.org/wiki/Zodiac [7] http://modernconstellations.com/constellationhistory.html [8] http://astrosurf.com/sguisard/Pagim/Scorpius_constellation-LHRVB-50mm.html [9] http://electronics.howstuffworks.com/digital-camera.htm [10] http://en.wikipedia.org/wiki/Filter_%28optics%29 [11] http://reed.cs.depaul.edu/peterh/class/hci450/imgs/pc.png [12] http://astrosurf.com/sguisard/Pagim/Scorpius_constellation-LHRVB-50mm.html [13] ap050930.html [14] http://periodic.lanl.gov/1.shtml [15] http://astrosurf.com/sguisard/Pagim/Scorpius_constellation-LHRVB-50mm.html [16] ap050605.html [17] http://en.wikipedia.org/wiki/Milky_Way [18] ap030706.html [19] https://solarsystem.nasa.gov/resources/285/the-milky-way-galaxy/ [20] ap090708.html [21] http://www.ianridpath.com/startales/scorpius.htm [22] http://stars.astro.illinois.edu/sow/antares.html [23] emission_nebulae.html [24] http://en.wikipedia.org/wiki/Reflection_nebula [25] http://en.wikipedia.org/wiki/Scorpion [26] ap190406.html [27] archivepix.html [28] lib/apsubmit2015.html [29] lib/aptree.html [30] https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search [31] calendar/allyears.html [32] /apod.rss [33] lib/edlinks.html [34] lib/about_apod.html [35] http://asterisk.apod.com/discuss_apod.php?date=190407 [36] ap190408.html [37] http://www.phy.mtu.edu/faculty/Nemiroff.html [38] http://www.phy.mtu.edu/ [39] https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html [40] http://www.astro.umd.edu/ [41] lib/about_apod.html#srapply [42] https://www.nasa.gov/about/highlights/HP_Privacy.html [43] https://astrophysics.gsfc.nasa.gov/ [44] https://www.nasa.gov/ [45] https://www.nasa.gov/centers/goddard/ [46] http://www.mtu.edu/ --- Mystic BBS v1.12 A43 (Windows/32) * Origin: FIDONet - The Positronium Repository (1:393/68) .