exoplanetary first: giant planet around a white dwarf star
- notFritzArgelander
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exoplanetary first: giant planet around a white dwarf star
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
- helicon
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Re: exoplanetary first: giant planet around a white dwarf star
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!
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Refractors: ES AR152 f/6.5 Achromat on Twilight II, Celestron 102mm XLT f/9.8 on Celestron Heavy Duty Alt Az mount, KOWA 90mm spotting scope
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Re: exoplanetary first: giant planet around a white dwarf star
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.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!
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: exoplanetary first: giant planet around a white dwarf star
Thanks n_FA. I also was wondering how the planet moved closer in.
ES AR 102 102mm, f/6.5, ES 254mm f/5 DOB, 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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