All articles starting with a number or symbol

122 mm howitzer 2A18 (D-30)

The 122 mm howitzer 2A18 (D-30), or Д-30, is a Soviet towed 122 mm howitzer adopted in 1960, whose three-trail carriage gives 360-degree traverse; about 70 countries use it.

122 mm howitzer M1938 (M-30)

The 122 mm howitzer M1938 (M-30) was a Soviet 122 mm divisional howitzer adopted in 1939, designed under F. Petrov, and used throughout World War II.

12238 Actor

12238 Actor is a Jupiter Trojan asteroid discovered by Eric Elst and Guido Pizarro in 1987 at the La Silla Observatory in Chile, named after Actor of Greek mythology.

12242 Koon

12242 Koon is a Jupiter Trojan asteroid about 40 kilometers across, trapped at Jupiter's trailing L5 Lagrangian point and discovered by the Shoemakers at Palomar Observatory in 1988.

123 Agreement (nuclear)

A 123 Agreement is a bilateral US agreement for peaceful nuclear cooperation, named for Section 123 of the Atomic Energy Act of 1954, with 26 in force as of 2025.

12305 Fifth Helena Drive

12305 Fifth Helena Drive is a 1929 Spanish Colonial house in Brentwood, Los Angeles, the only home Marilyn Monroe ever owned, where she died in 1962 at age 36.

123Movies

123Movies, also known as GoMovies, was a Vietnam-based network of free unauthorized streaming sites that the MPAA called the world's most popular illegal site before its 2018 shutdown.

124 Alkeste

124 Alkeste (A872 QA) is an S-type main-belt asteroid discovered 23 August 1872, orbiting at 2.63 AU with a 4.26-year period, 9.907-hour rotation, and roughly 77-89 km diameter.

12444 Prothoon

12444 Prothoon (1996 GE19) is a roughly 64 km Jupiter Trojan asteroid in the trailing L5 swarm, orbiting the Sun every 11.99 years between 4.86 and 5.61 AU, rotating in 15.64 hours.

124P/Mrkos is a Jupiter-family comet discovered by Antonin Mrkos in March 1991, with a 6.2-year, 31-degree orbit librating in Jupiter's 2/1 resonance, a featureless D-type-like bare nucleus, and very low activity.

125 Liberatrix

125 Liberatrix (A872 RA), a 48-km M/X-type main-belt asteroid discovered by P. M. Henry at Paris in 1872; orbits at 2.74 AU every 4.54 years, rotates in 3.968 hours, albedo 0.182, disputed Liberatrix/Agnia family membership.

1251 Avenue of the Americas

1251 Avenue of the Americas, formerly the Exxon Building, is a 54-story office skyscraper in Midtown Manhattan, completed in 1971 and owned by Mitsui Fudosan America.

Oct 22, 2026

1257 Samalas eruption

The 1257 Samalas eruption was a caldera-forming eruption of Mount Samalas on Lombok, Indonesia, among the Holocene's largest; identified in 2013 as the source of the 1258 ice core sulfate spike.

125P/Spacewatch

125P/Spacewatch (1991 R2, 1991x) is a Jupiter-family periodic comet discovered by Tom Gehrels on CCD images with the 0.91-m Spacewatch telescope on 1991 September 8; the first CCD comet discovery and then-faintest known, period about 5.5 years.

125th Street station (IRT Lexington Avenue Line)

125th Street station on the IRT Lexington Avenue Line: express station at Lexington Avenue and East 125th Street in East Harlem serving the 4, 5, and 6 trains, opened July 17, 1918, with a planned Second Avenue Subway Phase 2 transfer.

126 Velleda

126 Velleda, main-belt S-type asteroid, discovered 5 November 1872 by P. P. Henry at Paris; diameter about 45 km, rotation 5.37 hours, orbital period 3.81 years.

1261

1261: the year Byzantines retook Constantinople from the Latin Empire and Michael VIII signed the Treaty of Nymphaeum, granting Genoa tax-exempt Levantine and Black Sea trade at Venice's expense.

12649 Ascanios

12649 Ascanios (2035 T-3) is a Jupiter Trojan asteroid about 25 km across, discovered in 1977, orbiting at 5.16 AU with an 11.72-year period, dark albedo 0.064, not potentially hazardous.

12658 Peiraios

12658 Peiraios (provisional designation 1973 SL) is a Jupiter Trojan asteroid at Jupiter's leading L4 Lagrange point, about 26 km in diameter, discovered in 1973 at Palomar Observatory.

126P/IRAS

126P/IRAS is a Halley-type short-period comet discovered by the Infrared Astronomical Satellite in June 1983, with a 13.4-year period, 46-degree inclination, carbon-chain-depleted composition, and well-measured 1996 dust tail.

127 Hours

127 Hours (2010) is Danny Boyle's survival drama starring James Franco as Aron Ralston, based on his memoir Between a Rock and a Hard Place; six Oscar nominations, 93% on Rotten Tomatoes.

127 Johanna

127 Johanna (A872 VB) is a large carbonaceous main-belt asteroid, about 122 km across, discovered by P. M. Henry at Paris in 1872; it rotates prograde in 12.7988 hours with albedo 0.042.

12714 Alkimos

12714 Alkimos, provisionally designated 1991 GX1, is a large Jupiter Trojan asteroid sharing Jupiter's orbit at the leading L4 point, about 48 to 61 kilometers across.

128 Nemesis

128 Nemesis (罚神星) is a large C-type main-belt asteroid, ~162.5 km across, discovered by James Craig Watson in 1872, with a 38.93-hour rotation, density 2.22 g/cm³, and its own asteroid family.

128 Technology

128 Technology was a software-defined wide area networking (SD-WAN) company founded in Burlington, Massachusetts in 2014, acquired by Juniper Networks in 2020 for $450 million.

128P/Shoemaker-Holt 1-B

128P/Shoemaker-Holt 1-B is the secondary nucleus of Jupiter-family comet 128P/Shoemaker-Holt 1, split from the main nucleus around 1997; period 9.5 years, diameter 4.6 km, perihelion 3.05 AU.

1290 Ningcheng earthquake

The 1290 Ningcheng earthquake, called the Wuping Road earthquake, was a large earthquake near today's Ningcheng, Inner Mongolia, on 4 October 1290 that killed 7,220 people during the Yuan dynasty.

129137 Hippolochos

129137 Hippolochos (2005 AP27) is a Jupiter Trojan asteroid, about 8.2 km across, orbiting the Sun every 11.61 years at 4.83 to 5.43 AU; not hazardous, no Earth close approaches.

12916 Eteoneus

12916 Eteoneus, provisionally designated 1998 TL15, is a minor planet about 22 km across orbiting the Sun at roughly Jupiter's distance on a Jupiter Trojan-type orbit.