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Edited 3 y ago
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Thank you my space-exploration advocate friend Maj William W. 'Bill' Price for posting the February 4th Astronomy Picture of the Day (APOD): "Moons at Twilight
Image: Moons at Twilight.
Explanation: Even though Jupiter was the only planet visible in the evening sky on February 2, it shared the twilight above the western horizon with the Solar System's brightest moons. In a single exposure made just after sunset, the Solar System's ruling gas giant is at the upper right in this telephoto field-of-view from Cancun, Mexico. The snapshot also captures our fair planet's own natural satellite in its young crescent phase. The Moon's disk looms large, its familiar face illuminated mostly by earthshine. But the four points of light lined-up with Jupiter are Jupiter's own large Galilean moons. Top to bottom are Ganymede, [Jupiter], Io, Europa, and Callisto. Ganymede, Io, and Callisto are physically larger than Earth's Moon while water world Europa is only slightly smaller.
Golden earring - Twilight zone
https://www.youtube.com/watch?v=a1sf2CzEq0w
FYI Sgt (Join to see) PO1 William "Chip" Nagel PO3 Edward Riddle SSG Michael Noll CPT (Join to see) SGT Mary G. SGT Tiffanie G. MSgt Gloria Vance SPC Michael Terrell GySgt Thomas Vick SGT Charlie Lee SFC Ralph E KelleySFC Joe S. Davis Jr., MSM, DSL CDR Andrew McMenamin, PhDCSM Bob Stanek SFC Bernard Walko
Image: Moons at Twilight.
Explanation: Even though Jupiter was the only planet visible in the evening sky on February 2, it shared the twilight above the western horizon with the Solar System's brightest moons. In a single exposure made just after sunset, the Solar System's ruling gas giant is at the upper right in this telephoto field-of-view from Cancun, Mexico. The snapshot also captures our fair planet's own natural satellite in its young crescent phase. The Moon's disk looms large, its familiar face illuminated mostly by earthshine. But the four points of light lined-up with Jupiter are Jupiter's own large Galilean moons. Top to bottom are Ganymede, [Jupiter], Io, Europa, and Callisto. Ganymede, Io, and Callisto are physically larger than Earth's Moon while water world Europa is only slightly smaller.
Golden earring - Twilight zone
https://www.youtube.com/watch?v=a1sf2CzEq0w
FYI Sgt (Join to see) PO1 William "Chip" Nagel PO3 Edward Riddle SSG Michael Noll CPT (Join to see) SGT Mary G. SGT Tiffanie G. MSgt Gloria Vance SPC Michael Terrell GySgt Thomas Vick SGT Charlie Lee SFC Ralph E KelleySFC Joe S. Davis Jr., MSM, DSL CDR Andrew McMenamin, PhDCSM Bob Stanek SFC Bernard Walko
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