proposal to hunt for "planet 9" as a black hole

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notFritzArgelander
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proposal to hunt for "planet 9" as a black hole

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Post by notFritzArgelander »

Since the observed orbital anomalies that "Planet 9" are supposed to explain can arise without a "Planet 9" the prospects for success are dubious. That's the bad news. Still a grapefruit sized BH would be amusing. I still think that there is no reason to believe that low mass primordial BHs are attached to the solar system. They are more likely rogue objects inhabiting the galactic halo, not the MW disk.

https://phys.org/news/2020-07-scientist ... -hole.html
Scopes: Refs: Orion ST80, SV 80EDA f7, TS 102ED f11 Newts: AWB 130mm, f5, Z12 f5; Cats: VMC110L, Intes MK66,VMC200L f9.75 EPs: KK Fujiyama Orthoscopics, 2x Vixen NPLs (40-6mm) and BCOs, Baader Mark IV zooms, TV Panoptics, Delos, Plossl 32-8mm. Mixed brand Masuyama/Astroplans Binoculars: Nikon Aculon 10x50, Celestron 15x70, Baader Maxbright. Mounts: Star Seeker IV, Vixen Porta II, Celestron CG5
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Re: proposal to hunt for "planet 9" as a black hole

#2

Post by Lady Fraktor »

I am feeling a bit skeptical about this one...
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Re: proposal to hunt for "planet 9" as a black hole

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Post by notFritzArgelander »

I'd rather spend money on a way to find primordial black holes in general than a primordial "Planet 9" BH in particular. So skepticism is shared....
Scopes: Refs: Orion ST80, SV 80EDA f7, TS 102ED f11 Newts: AWB 130mm, f5, Z12 f5; Cats: VMC110L, Intes MK66,VMC200L f9.75 EPs: KK Fujiyama Orthoscopics, 2x Vixen NPLs (40-6mm) and BCOs, Baader Mark IV zooms, TV Panoptics, Delos, Plossl 32-8mm. Mixed brand Masuyama/Astroplans Binoculars: Nikon Aculon 10x50, Celestron 15x70, Baader Maxbright. Mounts: Star Seeker IV, Vixen Porta II, Celestron CG5
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