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Timing

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If possible, we need to differentiate between when the object was first imaged by Hubble, and when some human actually looked at the data / pictures / whatever and asked "what's that thing?" Evercat (talk) 21:57, 20 September 2008 (UTC)[reply]

New Scientist writes that the object was first reported in 2006. http://space.newscientist.com/article/dn14738-space-firefly-resembles-no-known-object.html AxelBoldt (talk) 03:15, 21 September 2008 (UTC)[reply]

SN1993J like?

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Also, I'm uneasy about this connection to SN1993J, which seems like original research? Evercat (talk) 22:11, 20 September 2008 (UTC)[reply]

The object has a strong feature at a wavelength of 5360 Å which is unexplained; another object that is known to have had its largest bump at 5360 Å is the supernova SN1993J.[1][2]
  1. ^ Early-Time Spectroscopy of SN1993J
  2. ^ A user-provided comment by Will Hamilton in an article by Sky and Telescope magazine

The 5360 Angstrom feature doesn't seem to be original research though. AxelBoldt (talk) 03:15, 21 September 2008 (UTC)[reply]

How are they sure it isn't dust.Tailsfan2 (talk) 16:30, 26 October 2008 (UTC)[reply]

How are they sure what isn't dust? --Falcorian (talk) 17:50, 26 October 2008 (UTC)[reply]

Spectrum

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"when astronomers try to trace any one of them to an element the other lines fail to match up with any other known elements". This seems like an unfounded claim; i would love to see a reference. The cited source makes no mention of unknown elements.

The cited source is for the first two sentences... Not the last one. (This is why I like putting the refs at the end of each sentence, even if repeated as it reduces confusion.) You need to look at the paper itself which says:
  • The absorption features at 4320 and 4870 °A are consistent with Hgamma (4341 °A) and Hbeta (4861 °A) respectively, including uncertainty in the shape of the underlying continuum. However, there is no significant Halpha (6563 °A) emission or absorption, which would be expected for the presence of strong Hgamma and Hbeta features. (Although there is slight evidence for emission at 6563 °A in the Keck spectrum, this is not seen in the VLT or Subaru spectra.) The absorption feature at 5890 °A is consistent with Na i 5890, 5896. Although the combination of Hgamma, Hbera, and Na i consistently fits three of the observed features,the strong feature at 5360 °A and the weaker feature at 6330°A are left unexplained.
  • It is also possible that the transient is extragalactic. The absence of Lyman alpha absorption features shortward of 4500 °A places a hard upper limit of z ~ 2.7 on its redshift. Among redshifts 0 < z < 2.7, the cluster redshift of z = 1.112 is of specific interest as the transient is located a small projected distance from the center of the cluster. At this redshift, the absorption feature at 5890 °A is consistent with Mg ii 2796, 2803.However, the remaining features are not identified at this redshift.
Hope that helps. I've fixed the citations in the article to match my comment. --Falcorian (talk) 21:47, 9 January 2009 (UTC)[reply]

update

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this needs some updating

Now declared to be a new class of supernova.

65.94.47.63 (talk) 13:52, 11 June 2011 (UTC)[reply]

Sorry about that!

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My brother just told me he got on my computer and vandalized this article on my account when I forgot to lock it. :-/ Luckily it looks like it was reverted.

Sorry!

flarn2006 [u t c] time: 05:05, 12 October 2015 (UTC)[reply]

SCP?

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so you're telling me this thing is/was an SCP object? 178.51.26.77 (talk) 08:14, 26 July 2023 (UTC)[reply]

stop Bismuthdistrict (talk) 21:17, 17 October 2023 (UTC)[reply]
please Bismuthdistrict (talk) 21:18, 17 October 2023 (UTC)[reply]