冲点附近的立体木星

冲点附近的立体木星

2023年11月24日 Stereo Jupiter near Opposition Image Credit & Copyright: Marco Lorenzi Explanation: Jupiter looks sharp in these two rooftop telescope images. Both were captured on November 17 from Singapore, planet Earth, about two weeks after Jupiter’s 2023 opposition. Climbing high in midnight skies the giant planet was a mere 33.4 light-minutes from Singapore. That’s about 4 astronomical units away. Jupiter’s planet girdling dark belts and light zones are visible in remarkable detail, along with the giant world’s whitish oval vortices. Its signature Great Red Spot is still prominent in the south. Jupiter rotates rapidly on its axis once every 10 hours. So, based on video frames taken only 15 minutes apart, these images form a stereo pair. Look at the center of the pair and…

机智号的立体影像

机智号的立体影像

2023年6月24日 3D Ingenuity Image Credit: NASA, JPL-Caltech, MSSS, ASU Explanation: The multicolor, stereo imaging Mastcam-Z on the Perseverance rover zoomed in to capture this 3D close-up (get out your red/blue glasses) of the Mars Ingenuity helicopter on mission sol 45. That’s Earth-date 2021 April 5. Casting a shadow on the Martian surface, Ingenuity is standing alone on its four landing legs next to the rover’s wheel tracks. The experimental helicopter’s solar panel, charging batteries that keep it warm through the cold Martian nights and power its flight, sits just above Ingenuity’s two 1.2 meter (4 foot) long counter-rotating blades. Thirteen sols later, on April 19, Ingenuity became the first aircraft to perform powered, controlled flight on another planet. It has since gone on to complete…

冲位置附近的立体火星

冲位置附近的立体火星

2022年12月3日 Stereo Mars near Opposition Image Credit & Copyright: Marco Lorenzi Explanation: Mars looks sharp in these two rooftop telescope views captured in late November from Singapore, planet Earth. At the time, Mars was about 82 million kilometers from Singapore and approaching its opposition, opposite the Sun in planet Earth’s sky on December 8. Olympus Mons, largest of the volcanoes in the Tharsis Montes region (and largest known volcano in the Solar System), is near Mars’ western limb. In both the images it’s the whitish donut-shape at the upper right. The dark area visible near center is the Terra Sirenum region while the long dark peninsula closest to the planet’s eastern limb is Sinus Gomer. Near its tip is Gale crater, the Curiosity rover’s landing…

机智号的立体影像

机智号的立体影像

2021年04月08日 3D Ingenuity Image Credit: NASA, JPL-Caltech, MSSS, ASU Explanation: The multicolor, stereo imaging Mastcam-Z on the Perseverance rover zoomed in to captured this 3D close-up (get out your red/blue glasses) of the Mars Ingenuity helicopter on mission sol 45, April 5. That’s only a few sols before the technology demonstrating Ingenuity will attempt to fly in the thin martian atmosphere, making the first powered flight on another planet. The historic test flight is planned for no earlier than Sunday, April 11. Casting its shadow on the martian surface, Ingenuity is standing alone on four landing legs next to the rover’s wheel tracks. The experimental helicopter’s solar panel, charging batteries that keep it warm through the cold martian nights and power its flight, sits above…