Local Focus – Global Reach learn more about Kudos 365

Share, Engage & Explore with Kudos 365

Posted by Specola

Your avatar

Star Trails for a Red Planet

Posted by Specola • Posted on 11/30/2019 at 12:16PM Photography See more by Specola

NASA Astronomy Picture of the Day:

Does Mars have a north star? In long exposures of Earth's night sky, star trails make concentric arcs around the north celestial pole, the direction of our fair planet's axis of rotation. Bright star Polaris is presently the Earth's North Star, close on the sky to Earth's north celestial pole. But long exposures on Mars show star trails too, concentric arcs about a celestial pole determined by Mars' axis of rotation. Tilted like planet Earth's, the martian axis of rotation points in a different direction in space though. It points to a place on the sky between stars in Cygnus and Cepheus with no bright star comparable to Earth's north star Polaris nearby. So even though this ruddy, weathered landscape is remarkably reminiscent of terrain in images from the martian surface, the view must be from planet Earth, with north star Polaris near the center of concentric star trails. The landforms in the foreground are found in Qinghai Province in northwestern China.

Photo by Dengyi Huang

Your avatar

Interstellar Comet 2I/Borisov

Posted by Specola • Posted on 12/14/2019 at 12:16PM Photography See more by Specola

NASA Astronomy Picture of the Day:

From somewhere else in the Milky Way galaxy, Comet 2I/Borisov is just visiting the Solar System. Discovered by Crimean amateur astronomer Gennady Borisov on August 30, 2019, the first known interstellar comet is captured in these two recent Hubble Space Telescope images. On the left, a distant background galaxy near the line-of-sight to Borisov is blurred as Hubble tracked the speeding comet and dust tail about 327 million kilometers from Earth. At right, 2I/Borisov appears shortly after perihelion, its closest approach to Sun. Borisov's closest approach to our fair planet, a distance of about 290 million kilometers, will come on December 28. Even though Hubble's sharp images don't resolve the comet's nucleus, they do lead to estimates of less than 1 kilometer for its diameter.

Your avatar

Full Moon Geminids

Posted by Specola • Posted on 12/13/2019 at 12:16PM Photography See more by Specola

NASA Astronomy Picture of the Day:

The dependable annual Geminid meteor shower will be near its peak tonight (December 13/14) and before tomorrow's dawn. As Earth crosses through the dusty trail of active asteroid 3200 Phaethon the meteors will flash through the sky from the shower's radiant in Gemini. Gemini will be pretty easy for skygazers to find too as it won't be far from a nearly full waning gibbous Moon. You don't have look at the shower's radiant to see meteors though. The almost full moonlight won't hide the brightest of the Geminids from view either, but it will substantially reduce the rate of visible meteors for those who are counting. In fact, the 2019 Geminids should look a lot like the 2016 meteor shower This composite image from the 2016 Geminids aligns individual short exposures to capture many of the brighter Geminid meteors, inspite of a Full Moon shining near the constellation of the Twins. Along the horizon are the Teide Observatory's Solar Laboratory (right) and the Teide volcano on the Canary Island of Tenerife.

Photo by Juan Carlos Casado

Your avatar

Decorating the Sky

Posted by Specola • Posted on 12/12/2019 at 12:16PM Photography See more by Specola

NASA Astronomy Picture of the Day:

Bright stars, clouds of dust and glowing nebulae decorate this cosmic scene, a skyscape just north of Orion's belt. Close to the plane of our Milky Way galaxy, the wide field view spans about 5.5 degrees. Striking bluish M78, a reflection nebula, is on the right. M78's tint is due to dust preferentially reflecting the blue light of hot, young stars. In colorful contrast, the red sash of glowing hydrogen gas sweeping through the center is part of the region's faint but extensive emission nebula known as Barnard's Loop. At lower left, a dark dust cloud forms a prominent silhouette cataloged as LDN 1622. While M78 and the complex Barnard's Loop are some 1,500 light-years away, LDN 1622 is likely to be much closer, only about 500 light-years distant from our fair planet Earth.

Photo by Leonardo Julio

Show Off Your Work

Join Kudos to share your expertise

Kudos 365 gives you an online platform to showcase your photography and reach a broader audience.

Feedback