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The following is an archived discussion of the DYK nomination of the article below. Please do not modify this page. Subsequent comments should be made on the appropriate discussion page (such as this nomination's talk page, the article's talk page or Wikipedia talk:Did you know), unless there is consensus to re-open the discussion at this page. No further edits should be made to this page.

The result was: promoted by Cwmhiraeth (talk) 05:48, 18 June 2019 (UTC)

DYK toolbox

Kamchatka meteor

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Timelapse of the Kamchatka meteor's smoke trail by the JMA's Himawari 8
Timelapse of the Kamchatka meteor's smoke trail by the JMA's Himawari 8

Created by Exoplanetaryscience (talk). Self-nominated at 18:41, 20 March 2019 (UTC).

  • @Exoplanetaryscience: New article, long enough, and within policy - although the references could do with improving. My main concern is with the hook. ALT1 seems a bit disparaging, so I prefer the first one. However, the diameter of the meteor seems to be 12 +- 2, not exactly 12 - it might be better just to say the name of it. Also, I don't understand where the 30 years number came from - it's smaller than the 2013 and 1908 ones, so shouldn't this be "the last 6 years"? Thanks. Mike Peel (talk) 22:21, 21 March 2019 (UTC)
Notice second largest in 30 years- a rather conservative estimate by the BBC source I gave first since we're only confident that similarly sized asteroids have only hit once in the last 30 years (the chelaybinsk event as you said) It wouldn't be supported by the source given, but I could say it was the third largest impact on Earth since 1900. I also chose to state the size of it over the name as I couldn't seem to fit both in without seeming overly verbose, or just the name without making the size of it seem rather meaningless. I might even say putting down the size range and risk getting verbose is better than not giving it at all. exoplanetaryscience (talk) 23:43, 21 March 2019 (UTC)
@Exoplanetaryscience: Sorry for the delay, I hadn't spotted your reply here. "third largest observed since 1900" might be easier to understand than "second largest in 30 years", since the latter presumably depends on an observational technique having changed 30 years ago (looking at the source for the BBC article at [4]). Perhaps "10-metre class asteroid" might be a way to avoid giving uncertainties on the diameter while not being overly precise. Thanks. Mike Peel (talk) 20:23, 27 March 2019 (UTC)
 Comment: I prefer the "third largest observed since 1900" with the keyword being observed. Given that "Events as large as this are statistically estimated to occur once every 20-40 years on average" it seems difficulty to justify that we know that it is the "third largest impact on Earth since 1900." --mikeu talk 21:27, 3 April 2019 (UTC)
Sorry for the delay with re-reviewing this. I think it's now good to go with the revised version of the first hook. I forgot to check for the QPQ earlier, but it isn't needed as it's your second DYK. Thanks. Mike Peel (talk) 18:26, 15 April 2019 (UTC)
  • Hi, I came by to promote this, but the hook has too many numbers in it. Could you pare it down? Here's a suggestion:
  • ALT0a: ... that in 2018, the third-largest asteroid observed to impact Earth since 1900 fell over the Bering Sea near the Kamchatka Peninsula?
  • Also, why are you calling it an asteroid when the page name is meteor? Yoninah (talk) 19:37, 15 April 2019 (UTC)
  • Pinging @Exoplanetaryscience and Mu301. On 'asteroid', that's what it was before it fell into Earth's atmosphere (see Asteroid#Terminology), so that makes sense in the context: an asteroid fell and became a meteor. Thanks. Mike Peel (talk) 06:12, 16 April 2019 (UTC)
  • Right, a meteor is the visible passage of an asteroid (or other object) thourgh the atmosphere. Asteroid is the "thing" and meteor is the impact "event". --mikeu talk 09:23, 16 April 2019 (UTC)
@Mike Peel: God, I'm horrible at being timely recently. Anyway, I think it would be good to include the size because otherwise you've just got "an unusually large asteroid" and nobody knows how big it is- is a golf ball particularly large for such an object? Perhaps an entire mountain? There's no good way to give reference save just giving a size. exoplanetaryscience (talk) 02:10, 22 April 2019 (UTC)
@Yoninah: see the reply from the nominator above. Thanks. Mike Peel (talk) 06:43, 22 April 2019 (UTC)
To explain "how big it is" I have a slight preference for TNT equivalent force as in ALT1. The primary notability of the event is that it released a great amount of energy when it detonated in the atmosphere.[5] A small mass moving fast or a large mass moving slow could have the same impact.[6] But, diameter is ok imo. --mikeu talk 13:23, 22 April 2019 (UTC)
  • @Exoplanetaryscience: all I'm saying is that the hook has too many numbers in it. If you want to keep the size of the meteor, then edit the hook so the size doesn't run into the date. Yoninah (talk) 14:26, 22 April 2019 (UTC)
Alright, here's a couple of proposed modifications, which do you like more? exoplanetaryscience (talk) 19:06, 22 April 2019 (UTC)
  • BTW the image is really too dark to be discerned at thumbnail size. Yoninah (talk) 20:26, 22 April 2019 (UTC)
Pinging @Exoplanetaryscience: in case they haven't spotted this. Thanks. Mike Peel (talk) 17:46, 29 April 2019 (UTC)
Really sorry about the delay, I've been juggling a lot and have been ab it overwhelmed recently. I don't think I can easily brighten the image up without an unreasonable amount of work- if it won't work as an image then it's best to just remove it. And I like The DYK proposal that Yoninah gives. exoplanetaryscience (talk) 00:25, 1 May 2019 (UTC)
  • - New and long enough. Image ok. Qpq done. Hook is interesting. Inline citations checks. Good work. Good to go.BabbaQ (talk) 15:20, 15 June 2019 (UTC)
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