exoplanetary first: giant planet around a white dwarf star

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notFritzArgelander
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exoplanetary first: giant planet around a white dwarf star

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Post by notFritzArgelander »

Scopes: Refs: Orion ST80, SV 80EDA f7, TS 102ED f11 Newts: 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 III, Vixen Porta II, Celestron CG5, Orion Sirius EQG
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helicon
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Re: exoplanetary first: giant planet around a white dwarf star

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Post by helicon »

One wonders how the planets orbiting this star would have withstood the changes when it went through its red giant phase. Seemingly they would have been vaporized. Somehow one giant planet survived and it is even larger than its host star, and moved into an orbit that is so close that it is astounding. Fascinating stuff notFritz!
-Michael
Various scopes, 10" Zhumell Dob, ES AR152, AWB 5.1" Onesky newt, Oberwerk 25x100 binos, two eyeballs
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notFritzArgelander
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Re: exoplanetary first: giant planet around a white dwarf star

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Post by notFritzArgelander »

helicon wrote:
Wed Dec 04, 2019 9:00 pm
One wonders how the planets orbiting this star would have withstood the changes when it went through its red giant phase. Seemingly they would have been vaporized. Somehow one giant planet survived and it is even larger than its host star, and moved into an orbit that is so close that it is astounding. Fascinating stuff notFritz!
Of course the "now" planet could have been more massive, perhaps a brown dwarf or low mass star? The initial orbit was of course further out and friction from interacting with the red giant atmosphere led to orbital decay.
Scopes: Refs: Orion ST80, SV 80EDA f7, TS 102ED f11 Newts: 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 III, Vixen Porta II, Celestron CG5, Orion Sirius EQG
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Michael131313
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Re: exoplanetary first: giant planet around a white dwarf star

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Post by Michael131313 »

Thanks n_FA. I also was wondering how the planet moved closer in.
ES AR 102 102mm, f/6.5, Orion Starblast 4.5 114mm,f/4 , Obie 10x50, GSO SV 30mm, ES 68° 20mm, ES 82° 14mm, 11mm, 8.8 mm, 6.8mm, 4.7mm. Twilight 1 mount.
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