A revised zodiacal light model (ZodiSURF) adds wavelength-dependent analytical scattering phase function and albedo fitted to over 5,000 HST optical measurements, yielding ~4.5% uncertainty and revealing a 0.013 +/- 0.006 MJy/sr residual excess possibly from a dim spherical dust cloud.
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Solar image analysis shows typical astrometric jitter of 0.342 μas pc from activity, below the ~3 μas Earth-planet signal at 1 pc, so stellar contamination does not prevent Earth-like exoplanet astrometry around Sun-like stars.
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SKYSURF-11: A New Zodiacal Light Model Optimized for Optical Wavelengths
A revised zodiacal light model (ZodiSURF) adds wavelength-dependent analytical scattering phase function and albedo fitted to over 5,000 HST optical measurements, yielding ~4.5% uncertainty and revealing a 0.013 +/- 0.006 MJy/sr residual excess possibly from a dim spherical dust cloud.
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Astrometric exoplanet detection survives solar-like stellar contamination
Solar image analysis shows typical astrometric jitter of 0.342 μas pc from activity, below the ~3 μas Earth-planet signal at 1 pc, so stellar contamination does not prevent Earth-like exoplanet astrometry around Sun-like stars.