Can someone please explain this to me. Here’s two pictures of the setting sun at identical times of the day but a week apart. In one, from tonight, the sun is an orange orb in a blue sky, the other is a conventional, and rather pretty, sunset. I just can’t figure out why tonight’s setting sun didn’t illuminate the sky??? #hivemind #sunset #notsunset #edinburgh
As others have suggested I would also think it is about clouds / amtosphere. You don't want too much clouds so the sun doesn't get hidden behind it. But equally if there's no dust / water particles there is nothing to reflect / break the light so no pretty colours ...