Portal:Astronomy/Picture

This is the directory of selected pictures for Portal:Astronomy. For the old (no longer functional) version of this page, see Portal:Astronomy/Picture/Old.

Layout

{{Portal:Astronomy/Picture/Layout
  |image=
  |size=
  |caption=
  |text=
  |credit=
  |link=
}}

Instructions

• Use the template above. Fill out the Image, Text, Credit, and Link fields. You do not need to fill out the other two.
• All selections must be a Featured Picture on English Wikipedia or Wikimedia Commons.
• Use images that are roughly square shaped. If an image is too wide, it will wind up outside of its section on the Portal mainpage. If it is too tall, it will unbalance the columns.
• When adding new items, remember to update the max= field on the Portal:Astronomy page.

Selections

{{../box-header|Astronomy/Picture 1 | Portal:Astronomy/Picture/1 }} Portal:Astronomy/Picture/1

Mimas is a moon of Saturn. It was discovered in 1789 by William Herschel, after whom the large crater in the image is named. It is the twentieth-largest moon in the Solar System, and the smallest astronomical body that is known to be rounded in shape because of self-gravitation. This photograph of Mimas was taken by the unmanned spacecraft Cassini in 2010.

{{../box-footer|}} {{../box-header|Astronomy/Picture 2 | Portal:Astronomy/Picture/2 }} Portal:Astronomy/Picture/2

Messier 82, also known as NGC 3034, Cigar Galaxy, and M82, is the prototype starburst galaxy about 12 million light-years away in the constellation Ursa Major. The starburst galaxy is five times more luminous than the whole Milky Way, and one hundred times more luminous than our galaxy's center. This mosaic image, taken by the Hubble Telescope, is the sharpest wide-angle view ever obtained of Messier 82.

{{../box-footer|}} {{../box-header|Astronomy/Picture 3 | Portal:Astronomy/Picture/3 }} Portal:Astronomy/Picture/3

IC 405, also Sharpless 229 (Sh2-229), Caldwell 31 and The Flaming Star Nebula, is an emission/reflection nebula and a Caldwell object in the constellation Auriga, surrounding the bluish star AE Aurigae. It shines at magnitude +6.0. The nebula is about 5 light-years across. This is a white light image of the Flaming Star Nebula showing the "smoke" of reflection nebula.

{{../box-footer|}} {{../box-header|Astronomy/Picture 4 | Portal:Astronomy/Picture/4 }} Portal:Astronomy/Picture/4

Artist's concept of the surface of Pluto's small satellite Hydra. Pluto & Charon (right) & Nix (bright dot on left).

{{../box-footer|}} {{../box-header|Astronomy/Picture 5 | Portal:Astronomy/Picture/5 }} Portal:Astronomy/Picture/5

Sunspots are temporary phenomena on the surface of the Sun (the photosphere) that appear visibly as dark spots compared to surrounding regions. They are caused by intense magnetic activity, which inhibits convection, forming areas of reduced surface temperature. Although they are at temperatures of roughly 3,000–4,500 K (4,940–7,640 °F), the contrast with the surrounding material at about 5,780 K leaves them clearly visible as dark spots, as the intensity of a heated black body (closely approximated by the photosphere) is a function of T (temperature) to the fourth power.

{{../box-footer|}} {{../box-header|Astronomy/Picture 6 | Portal:Astronomy/Picture/6 }} Portal:Astronomy/Picture/6

Cassiopeia A (Cas A) is a supernova remnant in the constellation Cassiopeia and the brightest astronomical radio source in the sky, with a flux of 2720 Jy at 1 GHz. The supernova occurred approximately 11,000 light-years (3.4 kpc) away in the Milky Way.

{{../box-footer|}} {{../box-header|Astronomy/Picture 7 | Portal:Astronomy/Picture/7 }} Portal:Astronomy/Picture/7

Orion's Belt or The Belt of Orion is an asterism in the constellation Orion. It consists of the three bright stars: ζ Ori (Alnitak), ε Ori (Alnilam), and δ Ori

{{../box-footer|}} {{../box-header|Astronomy/Picture 8 | Portal:Astronomy/Picture/8 }} Portal:Astronomy/Picture/8

NGC 1300 is a barred spiral galaxy about 61 million light-years away in the constellation Eridanus. The galaxy is about 110,000 light-years across; just slightly larger than our own galaxy, the Milky Way.

{{../box-footer|}} {{../box-header|Astronomy/Picture 9 | Portal:Astronomy/Picture/9 }} Portal:Astronomy/Picture/9 Portal:Astronomy/Picture/9 {{../box-footer|}} {{../box-header|Astronomy/Picture 10 | Portal:Astronomy/Picture/10 }} Portal:Astronomy/Picture/10

NGC 4565 (also known as the Needle Galaxy or Caldwell 38) is an edge-on spiral galaxy about 30 to 50 million light-years away in the constellation Coma Berenices. The 10th magnitude galaxy sits perpendicular to our own Milky Way galaxy and is almost directly above the North Galactic Pole. First spotted in 1785 by Sir William Herschel (1738–1822), this is one of the most famous examples of an edge-on spiral galaxy.

{{../box-footer|}} {{../box-header|Astronomy/Picture 11 | Portal:Astronomy/Picture/11 }} Portal:Astronomy/Picture/11 Portal:Astronomy/Picture/11 {{../box-footer|}} {{../box-header|Astronomy/Picture 12 | Portal:Astronomy/Picture/12 }} Portal:Astronomy/Picture/12 Portal:Astronomy/Picture/12 {{../box-footer|}} {{../box-header|Astronomy/Picture 13 | Portal:Astronomy/Picture/13 }} Portal:Astronomy/Picture/13 Portal:Astronomy/Picture/13 {{../box-footer|}} {{../box-header|Astronomy/Picture 14 | Portal:Astronomy/Picture/14 }} Portal:Astronomy/Picture/14 Portal:Astronomy/Picture/14 {{../box-footer|}} {{../box-header|Astronomy/Picture 15 | Portal:Astronomy/Picture/15 }} Portal:Astronomy/Picture/15 Portal:Astronomy/Picture/15 {{../box-footer|}} {{../box-header|Astronomy/Picture 16 | Portal:Astronomy/Picture/16 }} Portal:Astronomy/Picture/16 Portal:Astronomy/Picture/16 {{../box-footer|}} {{../box-header|Astronomy/Picture 17 | Portal:Astronomy/Picture/17 }} Portal:Astronomy/Picture/17 Portal:Astronomy/Picture/17 {{../box-footer|}} {{../box-header|Astronomy/Picture 18 | Portal:Astronomy/Picture/18 }} Portal:Astronomy/Picture/18 Portal:Astronomy/Picture/18 {{../box-footer|}} {{../box-header|Astronomy/Picture 19 | Portal:Astronomy/Picture/19 }} Portal:Astronomy/Picture/19 Portal:Astronomy/Picture/19 {{../box-footer|}} {{../box-header|Astronomy/Picture 20 | Portal:Astronomy/Picture/20 }} Portal:Astronomy/Picture/20 Portal:Astronomy/Picture/20 {{../box-footer|}} {{../box-header|Astronomy/Picture 21 | Portal:Astronomy/Picture/21 }} Portal:Astronomy/Picture/21 Portal:Astronomy/Picture/21 {{../box-footer|}} {{../box-header|Astronomy/Picture 22 | Portal:Astronomy/Picture/22 }} Portal:Astronomy/Picture/22 Portal:Astronomy/Picture/22 {{../box-footer|}} {{../box-header|Astronomy/Picture 23 | Portal:Astronomy/Picture/23 }} Portal:Astronomy/Picture/23 Portal:Astronomy/Picture/23 {{../box-footer|}} {{../box-header|Astronomy/Picture 24 | Portal:Astronomy/Picture/24 }} Portal:Astronomy/Picture/24 Portal:Astronomy/Picture/24 {{../box-footer|}} {{../box-header|Astronomy/Picture 25 | Portal:Astronomy/Picture/25 }} Portal:Astronomy/Picture/25 Portal:Astronomy/Picture/25 {{../box-footer|}} {{../box-header|Astronomy/Picture 26 | Portal:Astronomy/Picture/26 }} Portal:Astronomy/Picture/26 Portal:Astronomy/Picture/26 {{../box-footer|}} {{../box-header|Astronomy/Picture 27 | Portal:Astronomy/Picture/27 }} Portal:Astronomy/Picture/27 Portal:Astronomy/Picture/27 {{../box-footer|}} {{../box-header|Astronomy/Picture 28 | Portal:Astronomy/Picture/28 }} Portal:Astronomy/Picture/28 Portal:Astronomy/Picture/28 {{../box-footer|}} {{../box-header|Astronomy/Picture 29 | Portal:Astronomy/Picture/29 }} Portal:Astronomy/Picture/29 Portal:Astronomy/Picture/29 {{../box-footer|}} {{../box-header|Astronomy/Picture 30 | Portal:Astronomy/Picture/30 }} Portal:Astronomy/Picture/30 Portal:Astronomy/Picture/30 {{../box-footer|}} {{../box-header|Astronomy/Picture 31 | Portal:Astronomy/Picture/31 }} Portal:Astronomy/Picture/31 Portal:Astronomy/Picture/31 {{../box-footer|}} {{../box-header|Astronomy/Picture 32 | Portal:Astronomy/Picture/32 }} Portal:Astronomy/Picture/32 Portal:Astronomy/Picture/32 {{../box-footer|}} {{../box-header|Astronomy/Picture 33 | Portal:Astronomy/Picture/33 }} Portal:Astronomy/Picture/33 Portal:Astronomy/Picture/33 {{../box-footer|}} {{../box-header|Astronomy/Picture 34 | Portal:Astronomy/Picture/34 }} Portal:Astronomy/Picture/34 Portal:Astronomy/Picture/34 {{../box-footer|}} {{../box-header|Astronomy/Picture 35 | Portal:Astronomy/Picture/35 }} Portal:Astronomy/Picture/35 Portal:Astronomy/Picture/35 {{../box-footer|}} {{../box-header|Astronomy/Picture 36 | Portal:Astronomy/Picture/36 }} Portal:Astronomy/Picture/36 Portal:Astronomy/Picture/36 {{../box-footer|}} {{../box-header|Astronomy/Picture 37 | Portal:Astronomy/Picture/37 }} Portal:Astronomy/Picture/37 Portal:Astronomy/Picture/37 {{../box-footer|}} {{../box-header|Astronomy/Picture 38 | Portal:Astronomy/Picture/38 }} Portal:Astronomy/Picture/38 Portal:Astronomy/Picture/38 {{../box-footer|}} {{../box-header|Astronomy/Picture 39 | Portal:Astronomy/Picture/39 }} Portal:Astronomy/Picture/39 Portal:Astronomy/Picture/39 {{../box-footer|}} {{../box-header|Astronomy/Picture 40 | Portal:Astronomy/Picture/40 }} Portal:Astronomy/Picture/40 Portal:Astronomy/Picture/40 {{../box-footer|}} {{../box-header|Astronomy/Picture 41 | Portal:Astronomy/Picture/41 }} Portal:Astronomy/Picture/41 Portal:Astronomy/Picture/41 {{../box-footer|}} {{../box-header|Astronomy/Picture 42 | Portal:Astronomy/Picture/42 }} Portal:Astronomy/Picture/42 Portal:Astronomy/Picture/42 {{../box-footer|}} {{../box-header|Astronomy/Picture 43 | Portal:Astronomy/Picture/43 }} Portal:Astronomy/Picture/43 Portal:Astronomy/Picture/43 {{../box-footer|}} {{../box-header|Astronomy/Picture 44 | Portal:Astronomy/Picture/44 }} Portal:Astronomy/Picture/44 Portal:Astronomy/Picture/44 {{../box-footer|}} {{../box-header|Astronomy/Picture 45 | Portal:Astronomy/Picture/45 }} Portal:Astronomy/Picture/45 Portal:Astronomy/Picture/45 {{../box-footer|}} {{../box-header|Astronomy/Picture 46 | Portal:Astronomy/Picture/46 }} Portal:Astronomy/Picture/46 Portal:Astronomy/Picture/46 {{../box-footer|}} {{../box-header|Astronomy/Picture 47 | Portal:Astronomy/Picture/47 }} Portal:Astronomy/Picture/47 Portal:Astronomy/Picture/47 {{../box-footer|}} {{../box-header|Astronomy/Picture 48 | Portal:Astronomy/Picture/48 }} Portal:Astronomy/Picture/48 Portal:Astronomy/Picture/48 {{../box-footer|}} {{../box-header|Astronomy/Picture 49 | Portal:Astronomy/Picture/49 }} Portal:Astronomy/Picture/49 Portal:Astronomy/Picture/49 {{../box-footer|}} {{../box-header|Astronomy/Picture 50 | Portal:Astronomy/Picture/50 }} Portal:Astronomy/Picture/50 Portal:Astronomy/Picture/50 {{../box-footer|}}