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  2. Binary black hole - Wikipedia

    en.wikipedia.org/wiki/Binary_black_hole

    A binary black hole (BBH), or black hole binary, is a system consisting of two black holes in close orbit around each other. Like black holes themselves, binary black holes are often divided into binary stellar black holes , formed either as remnants of high-mass binary star systems or by dynamic processes and mutual capture; and binary ...

  3. Supermassive Black Hole (song) - Wikipedia

    en.wikipedia.org/wiki/Supermassive_Black_Hole_(song)

    "Supermassive Black Hole" was the first single released from Black Holes and Revelations available on vinyl, CD, DVD, and digital download formats. It peaked at number four on the UK Singles Chart, making it their most popular single released in the UK to date. In the US, it was the third single to be released, on 23 April 2007.

  4. Black Hole Sun - Wikipedia

    en.wikipedia.org/wiki/Black_Hole_Sun

    "Black Hole Sun" would peak at number six on the Australian Singles Chart. "Black Hole Sun" reached the top 30 in Germany, the Netherlands, and New Zealand, and was a top-10 success in France and Ireland. It topped the Icelandic Singles Chart for a week and was a moderate top-20 success in Sweden. The single has sold over three million copies ...

  5. Black Hole (song) - Wikipedia

    en.wikipedia.org/wiki/Black_Hole_(song)

    "Black Hole" is a song by British singer-songwriter Griff, from her mixtape One Foot in Front of the Other. The song is written by Griff, Peter Rycroft, and Frederik Castenschiold Eichen and produced by Lostboy. The song was released on 18 January 2021 on the Warner Records label. [1]

  6. List of guitar tunings - Wikipedia

    en.wikipedia.org/wiki/List_of_guitar_tunings

    Nicknamed - "Papa-Papa". DADDAD is common in folk music (Irish, Scottish), and for the execution of a rhythm guitar in "heavy" (alternative music) on 6th on the third string at the same time. To reach the tuning from DADGAD, Open D or Open D Minor, the G string is dropped to D so that the 3rd and 4th strings are tuned to the same pitch.

  7. OJ 287 - Wikipedia

    en.wikipedia.org/wiki/OJ_287

    In order to reproduce all the known outbursts, the rotation of the primary black hole is calculated to be 38% of the maximum allowed rotation for a Kerr black hole. [10] [4] The companion's orbit is decaying via the emission of gravitational radiation and it is expected to merge with the central black hole within approximately 10,000 years. [11 ...

  8. List of most massive black holes - Wikipedia

    en.wikipedia.org/wiki/List_of_most_massive_black...

    The supermassive black hole at the core of Messier 87, here shown by an image by the Event Horizon Telescope, is among the black holes in this list. This is an ordered list of the most massive black holes so far discovered (and probable candidates), measured in units of solar masses (M ☉), approximately 2 × 10 30 kilograms.

  9. Gaia BH1 - Wikipedia

    en.wikipedia.org/wiki/Gaia_BH1

    Gaia BH1 (Gaia DR3 4373465352415301632) is a binary system consisting of a G-type main-sequence star and a likely stellar-mass black hole, located about 1,560 light-years (478 pc) away from the Solar System in the constellation of Ophiuchus. [4]