Krisztián Sárneczky (born 6 November 1974 in Budapest) is a Hungarian teacher of geography^[1] and prolific discoverer of minor planets and supernovae, researching at Konkoly Observatory in Budapest, Hungary. He is a board member of the Hungarian Astronomical Association (HAA)^[2] and member of the American Association of Variable Star Observers, leader of the Comet Section of the HAA, and is a contributor in the editorial work of Hungarian Astronomical Almanach.^[3][4]

In 1990 he joined the Hungarian Astronomical Association and became the Co-ordinator of the Cometary Section the same year. In 1994 he became a member of the Executive Committee and in 1996 he was appointed secretary. In 1996 he also joined the American Association of Variable Star Observers (AAVSO).

Krisztián Sárneczky has published a number of articles in the astronomy community, and has a large number of asteroid discoveries to his credit (see § Discoveries).

• Astrometry of comets and minor planets (including rotational light curves)
• Photometry of supernovae.^[3]

• Siding Spring Observatory, NSW, Australia (visiting astronomer, 2007),
• Hungarian Astronomical Association's Polaris Observatory, Budapest, (from 2006 - )
• Baja Astronomical Observatory (visiting astronomer, 2005)
• The German-Spanish Astronomical Center at Calar Alto Observatory (visiting astronomer, 2000 and 2001)
• Observatory of Hungarian Scientific Academy Konkoly-Thege Miklós Astronomical Research Institute at Piszkéstetõ, Hungary (visiting astronomer from 1997)
• Observatory of Szeged (from 1996)

• GAIA-FUN-SSO-2 Workshop, September 19–21, 2012, Paris,^[6]
• Supernovae Illuminating the Universe: from Individuals to Populations, September 10–14, 2012, Garching bei München, MPA/ESO/MPE/Excellence Cluster Universe Conference on Supernovae Illuminating the Universe: from Individuals to Populations
• IAU Colloquium 192, "Supernovae - 10 years of SN 1993J", April 22–26, 2003, Valencia,^[7]
• National Young Scientists' Conference (OTDK), second place in Physics Section, Astronomy subsection (1999),
• IAU Colloquium 173,"Evolution and Source Regions of Asteroids and Comets", August 24–28, 1998, Tatranska Lomnica,

• Eötvös Fellowship (2007)
• National Young Scientists' Conference (OTDK), first place in Physics-Earth Sciences-Mathematics Section, Astronomy I. (Solar System) subsection (2001)
• Pro Renovanda Cultura Hungariae DT 2000/43.
• National Young Scientists' Conference (OTDK), second place in Physics Section, Astronomy subsection (1999)
• Young Scientists' Conference at University of Szeged (TDK), first place in Physics Section (1998 and 2000)
• In 2017, asteroid 10258 Sárneczky was named after him^[4]

• Sváb-hegyi kisbolygók, (Márta Sragner Keszthelyiné) Az égbolt mindenkié. Budapest: Introducing the Hungarian Astronomical Association, 2005, ISBN 963-218-243-X

• Sárneczky K., Szabó Gy., Kiss L.L.: 1999, CCD observations of 11 faint asteroids, Astronomy and Astrophysics Supplement Series, 137., 363,
• List of publications by Krisztián Sárneczky from 1999 to 2007
• List of publications by Krisztián Sárneczky from 2005 to 2013, Csillagászati hírportál,

• The first astronomical program on the internet.^[8] 2009
• Asteroid hunter from Piszkéstető, 2010

As of 2018, Krisztián Sárneczky is credited by the Minor Planet Center with the discovery and co-discovery of 379 numbered minor planets during 2000–2012.^[5] He has also co-discovered 5 supernovae including 2011ba and 2011ab Anonym.^[4][9] He also has discovered three of eight known earth impactors: 2022 EB5, 2023 CX1, and 2024 BX1. Each of these impacted Earth's atmosphere generating a fireball within hours of discovery.^[10]