All articles starting with H
20,046 articles
Hinrich Romeike
Hinrich Romeike (born 1963, Hamburg), German eventing rider and dentist, won individual and team eventing gold at the 2008 Hong Kong Olympics on the Holsteiner Marius; also 2006 world team champion.
Hint (app)
Hint is the name of several unrelated mobile apps, including a subscription astrology app, a Swedish streaming advisor, and a home app co-founded by Martha Stewart.
HINT1
HINT1 (histidine triad nucleotide-binding protein 1, NMAN, PKCI-1) is a gene on chromosome 5 encoding a cytosolic HIT-family phosphoramidase homodimer; loss-of-function mutations cause autosomal recessive axonal neuropathy with neuromyotonia, and the protein acts as a tumor suppressor.
Hinterkaifeck murders
Hinterkaifeck murders, six killings of the Gruber-Gabriel household and maid Maria Baumgartner on an Upper Bavarian farm on 31 March 1922; over 100 suspects investigated, never solved.
Hinterland
A hinterland is the land area lying behind a coast, river, or urban center and tied to it economically; in transport geography, the area a port serves.
Hinterland (TV series)
Hinterland (Y Gwyll, 'the dusk') is a Welsh crime drama set in Aberystwyth, Ceredigion, starring Richard Harrington as DCI Tom Mathias. Shot back-to-back in Welsh and English for S4C and BBC, it ran three series (2013-2016) and founded Welsh noir.
Hinton St Mary Mosaic
The Hinton St Mary Mosaic is a Roman mosaic found in Dorset in 1963, whose central figure is commonly identified as one of the earliest images of Christ.
Hinton St. Mary
Hinton St. Mary, Dorset: Roman site discovered in 1963, famous for a 4th-century chi-rho mosaic bust, possibly Christ or Constantine, now in the British Museum; new fieldwork questions the villa interpretation.
Hintsa kaKhawuta
Hintsa kaKhawuta, also honored as Aah Zanzolo and known as Hintsa the Great, was king of the Xhosa and fourth paramount chief of the Gcaleka, killed by British soldiers in 1835.
Hintze Ribeiro Bridge collapse
The Hintze Ribeiro Bridge collapse, known as the Entre-os-Rios disaster, killed all 59 people on a bridge over Portugal's Douro River on 4 March 2001.
Hinze Dam
Hinze Dam is an earth and rock-fill embankment dam on the Nerang River in South East Queensland, Australia, built in 1976 as the Gold Coast's main drinking water supply.
Hioki E.E. Corporation
Hioki E.E. Corporation (日置電機株式会社) is a Japanese manufacturer of electrical test and measuring instruments, founded in 1935 and headquartered in Ueda, Nagano Prefecture, known especially for battery testers and clamp-on power meters.
Hip
Hip (hip joint, coxofemoral joint): the ball-and-socket joint between the femoral head and the acetabulum; multiaxial, weight-bearing, stabilized by labrum and iliofemoral, pubofemoral, and ischiofemoral ligaments.
HIP 10090
HIP 10090 (HD 13350) is a metal-rich K0/G3 star 82.4 parsecs away in Fornax with two 2026-discovered giant planets: warm Jupiter HIP 10090 c (0.85 Jupiter masses, 322-day orbit) and cold giant HIP 10090 b (3.87 Jupiter masses, 2960-day orbit).
HIP 111909
HIP 111909 is a K1 III giant star 88 parsecs away with two confirmed gas giant planets, HIP 111909 b (1.21 Jupiter masses, 487-day orbit) and HIP 111909 c (0.81 Jupiter masses, 894-day orbit), found by radial velocity in 2025.
HIP 113103
HIP 113103 (TIC 121490076) is a K dwarf 46.2 pc away with two transiting mini-Neptunes, b (7.61 d, 1.83 R_Earth) and c (14.25 d, 2.40 R_Earth), in near 2:1 resonance, found by TESS and confirmed with CHEOPS in 2023.
HIP 14810
HIP 14810 (BD+20 518) is a metal-rich G5 V star about 50.5 parsecs away with three radial-velocity giant planets: a 3.9 Jupiter-mass hot Jupiter (6.67 d), a 1.3 M_Jup planet (147.7 d), and a 0.6 M_Jup outer planet.
HIP 38594
HIP 38594 is a nearby M0-type red dwarf about 58 light-years away in Puppis with two confirmed radial-velocity planets, HIP 38594 b (8.1 Earths, 60.7-day orbit) and HIP 38594 c (0.152 Jupiters, 9.5-year orbit), both found by Feng et al. 2020.
HIP 39017
HIP 39017 (HD 65526) is a young A9/F0 gamma Doradus variable star 66.3 pc away hosting HIP 39017 b, a 23.6-Jupiter-mass L/T-transition substellar companion at 22.1 au, found by astrometry-guided direct imaging in 2024 (Tobin et al.).
HIP 41378
HIP 41378 (K2-93) is a bright F-type star in Cancer, 346 light-years away, with six confirmed planets including the 542-day super-puff HIP 41378 f and a 1:2:4 resonant inner chain.
HIP 5158
HIP 5158 (CD-23 395) is a K5 dwarf star about 51.6 parsecs away in Cetus with two radial-velocity planets: HIP 5158 b, an eccentric 1.42-Jupiter-mass gas giant in a 345.7-day orbit, and the distant, weakly constrained HIP 5158 c.
HIP 54373
HIP 54373 (TYC 6080-372-1) is a K5 V dwarf star 18.72 parsecs away with two confirmed Neptune-like planets, HIP 54373 b and c, found by radial velocity in 2019 in a 1:2 orbital resonance.
HIP 54515
HIP 54515 (HD 96855) is a young A5 V star about 270 light-years away in Leo, host of HIP 54515 b, a 17.7-Jupiter-mass superjovian planet at 24.8 au discovered in 2026 by Subaru SCExAO/CHARIS imaging plus Hipparcos-Gaia astrometry.
HIP 56998
HIP 56998 (HD 101581, GJ 435, TOI-6276) is a nearby metal-poor K5V dwarf 12.8 pc away with two confirmed Earth-size transiting planets (4.47 and 6.20 days) and a third candidate, near 4:3 resonance.
HIP 57274
HIP 57274 (GJ 439) is a K4V dwarf star 25.9 parsecs away with three radial-velocity planets from Fischer et al. 2012: a super-Earth b (11.6 Earth masses, 8.1 days), gas giants c and d, dynamically stable.
HIP 65426
HIP 65426 is a young A-type star about 385 light-years away in Centaurus, host of the directly imaged gas giant HIP 65426 b (about 9 Jupiter masses, 92 AU), first SPHERE planet and first exoplanet imaged by JWST.
HIP 66074
HIP 66074 (G255-34A) is a mid-K dwarf 116 light-years away in Ursa Minor hosting HIP 66074 b (Gaia-3b), a 5-Jupiter-mass gas giant on a 310.9-day, e=0.948 orbit, the first Gaia astrometric planet confirmed by radial velocities.
HIP 67522
HIP 67522 (HD 120411) is a 17-million-year-old Sun-like star about 415 light-years away in Scorpius-Centaurus with two transiting planets, b (6.96 d) and c (14.33 d), near 2:1 resonance; b is a low-density super-puff that appears to trigger stellar flares.
HIP 67851
HIP 67851 (HD 121056), K0 III giant star in Centaurus about 209 light-years away, hosts two radial-velocity giant planets announced in 2015: a 89-day Jupiter-mass planet and an eccentric 8.6-year several-Jupiter-mass planet in its habitable zone.
HIP 77900
HIP 77900 is a B-type star about 492 light-years away in the Upper Scorpius association; its directly imaged gas-giant companion HIP 77900 b (21 Jupiter masses, 3319 AU separation) was confirmed in 2024 from Gaia data.