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Hot Jupiter exoplanet in the constellation Columba From Wikipedia, the free encyclopedia
NGTS-1b is a confirmed hot Jupiter-sized extrasolar planet orbiting NGTS-1, a red dwarf star about half the mass and radius of the Sun, every 2.65 days.[4] The NGTS-1 system is about 716 light-years from Earth in the Columba constellation.[3][1][5]
artist's concept of exoplanet NGTS-1b | |
| Discovery | |
|---|---|
| Discovered by | Next-Generation Transit Survey[1] |
| Discovery date | 2017 |
| NGTS telescopes together with EulerCam photometric and HARPS spectroscopy followups. | |
| Orbital characteristics | |
| 0.0326 AU (4,880,000 km)[2] | |
| Eccentricity | 0.016[2] |
| 2.6473 JD[2] d | |
| Inclination | 82.8[2] |
| Star | NGTS-1[3] |
| Physical characteristics | |
| 1.33[2] RJ | |
| Mass | 0.812[2] MJ |
| Temperature | 790.0[2] K |
The exoplanet, NGTS-1b, was discovered by the Next-Generation Transit Survey.[1] Daniel Bayliss, of the University of Warwick, and lead author of the study describing the discovery of NGTS-1b, stated, "The discovery of NGTS-1b was a complete surprise to us—such massive planets were not thought to exist around such small stars—importantly, our challenge now is to find out how common these types of planets are in the Galaxy, and with the new Next-Generation Transit Survey facility we are well-placed to do just that."[5]
NGTS-1b is a hot Jupiter-sized gas giant exoplanet that has a mass of 0.812 MJ and a radius of 1.33 RJ, where MJ and RJ are the mass and radius of Jupiter.[3][1]
The planet orbits an M0.5 dwarf star about half the mass (0.617 M☉) and radius (0.573 R☉) of the Sun.[1][2]
NGTS-1b orbits about 4.5 million km (2.8 million mi) from the host star every 2.6473 Earth-days.[3][1][2][6]
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