Talk:OJ 287

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A fact from OJ 287 appeared on Wikipedia's Main Page in the Did you know column on 16 January 2008, and was viewed approximately 3,524 times (disclaimer) (check views). The text of the entry was as follows:

Did you know... that the supermassive black hole at the center of the quasar OJ287 has been measured to be 18 billion times the mass of the Sun, six times heavier than the previous record holder?

A record of the entry may be seen at Wikipedia:Recent additions/2008/January.

Wikipedia

Mass?[edit]

If the larger componant is claimed to be the most massive SMBH, shouldn't the article say how massive it is? It says it's six times the previous most massive object known, and it says how massive it's companion is, and it explains how the mass was calculated, but it never says what the mass is.StevoDog21 (talk) 19:17, 25 May 2009 (UTC)[reply]

Relative mass of the black holes[edit]

The article's wording is a bit inconsistent. In one place, it states: "This kind of variation suggests[7] that an engine is a binary supermassive black hole of two black holes of similar size." but then does on to say: "The smaller supermassive black hole with a mass of only 100 million MSun orbits the larger one with an observed 11-12 year orbital period." Is a factor of 10–20 difference in mass still considered "similar", for the purposes of this article? My gut reaction says no, but I'd like to hear other thoughts. Privong (talk) 11:16, 7 March 2015 (UTC)[reply]

Absolute rotation rate?[edit]

The rotation as the Kerr parameter fraction should be seconded by one in absolute metric units (eg Hz) — Preceding unsigned comment added by 178.238.167.101 (talk) 13:28, 11 March 2016 (UTC)[reply]

External links modified (January 2018)[edit]

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OJ Simpson[edit]

Was OJ 287 named after OJ Simpson? — Preceding unsigned comment added by 72.72.205.2 (talk) 09:28, 16 October 2021 (UTC)[reply]