It better not be an omen for He Who Must Not Be Named’s administration: It would be more an omen for a ‘healing of a deadly wound’, in that case.
COMET ISON, SO FAR SO GOOD: Comet ISON is hurtling toward the sun today at 240,000 mph and, despite the rising heat, the comet appears to be intact. Yesterday, reports of fading spectral lines from the comet’s core raised concerns that the icy nucleus might be disintegrating. Current images from NASA and ESA spacecraft, however, show the comet still going strong. Comet ISON has just entered the field of view of the Solar and Heliospheric Observatory (SOHO):
[snip]
NASA’s STEREO-A spacecraft is also monitoring the comet. Click to view a high-resolution movie (32 MB), which compresses 96 hours into less than 1 minute: (movie at link)
NASA’s STEREO-A spacecraft is also monitoring the comet. Click to view a high-resolution movie (32 MB), which compresses 96 hours into less than 1 minute: (movie at link)
The movie spans a 3+ day interval from Nov. 21 to Nov. 24 roughly centered on the period when astronomers at the IRAM telescope in Spain recorded fading emission lines from the comet’s core. Zoom your movie-player to full screen: Although “puffs” of material can be seen billowing down the comet’s tail, the comet itself does not appear to be disintegrating. So what caused the fade...?
“I will admit that I was pretty worried yesterday morning when reports of lower production rates came in,” says Matthew Knight of the Lowell Observatory and NASA’s Comet ISON Observation Campaign. “However, the STEREO-A brightness has increased steadily over the subsequent 36 hr, and I’m more optimistic again. My off-the-cuff thought is that there was an [outburst of dust, which dampened the emission lines] from roughly Nov 20-22, and it has returned to brightening again.” [snip]
Thanks all!