वॉयजर 1 उस गति से जिससे यह 2026-10-25 तक के वर्ष में बाहर की ओर बढ़ा (JPL Horizons)। ड्राइविंग: बिना रुके, कभी ईंधन भरे बिना।
इसे कैसे खोजा गया
2011 में पारगमन समय भिन्नताओं, पारगमन और त्रिज्य वेग द्वारा खोजा गया पहला ग्रह (NASA एक्सोप्लैनेट आर्काइव)।
इसके ग्रह
Kepler-19 c — 3.7 times Earth's width (estimated from its mass, not measured), a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 29 days; about 320 °C, hotter than boiling water; found in 2011 by transit timing variations.
Kepler-19 b — 2.2 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 9 days; about 580 °C, hotter than boiling water; found in 2011 by transit.
Kepler-19 d — 5.1 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 63 days; found in 2017 by radial velocity.
NASA Exoplanet Archive, Planetary Systems Composite Parameters (fetched 2026-11-02). Composite values: where a planet's size or mass was not measured, the archive estimates it from the other.
This research has made use of the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with NASA under the Exoplanet Exploration Program.