Comet Hartley 2, designated as 103P/Hartley by the Minor Planet Center, [6] is a small periodic comet with an orbital period of 6.48 years. [1] It was discovered by Malcolm Hartley in 1986 at the Schmidt Telescope Unit, Siding Spring Observatory, Australia. [5] Its diameter is estimated to be 1.2 to 1.6 kilometres (0.75 to 0.99 mi). [5] [7]

Jan 1, 2000 · Comet 103P/Hartley Position Calculator. Compute the position of Comet 103P/Hartley for any date and time between 1 January 2000 and 31 December 2099 and visualize the results on an interactive sky map.

Nov 3, 2024 · Comet 103P/Hartley (Hartley 2) is a small, oval (or peanut) shaped comet – its nucleus measures approximately one mile (1.6 kilometers) in diameter. It takes Hartley 2 about 6.47 years to orbit the Sun once. Hartley 2 last reached perihelion (closest approach to …

Light curves of comet 103P as constructed by Carl Hergenrother. The plots show the heliocentric magnitude (normalized to 1 AU from the earth and the sun and to 0 deg phase angle). The visual data from 1991 and 1997 are from a select group of observers producing numerous and consistent observations.

The interactive orbit chart above shows the comet's path through the solar system and its position at the given date. Green and blue lines are shown perpendicular to the ecliptic plane: Green if the path is above the ecliptic plane, blue if it is below.

Comet 103P/Hartley, known as Hartley 2, reached perihelion - the point in its orbit nearest the Sun - on 12 October. Comet Hartley 2 is a morning object during October 2023, its month …

103P/Hartley 2 is a mid-sized comet whose orbit features a relatively short period, low inclination, and is controlled by Jupiter's gravitational effects.

Apr 17, 2023 · Hubble Space Telescope observations of comet 103P/Hartley 2, taken on September 25, are helping in the planning for a November 4 flyby of the comet by NASA’s Deep Impact eXtended Investigation (DIXI) on NASA’s Deep …

The orbital elements of 103P/Hartley (source: MPC Ephemeris Service) The site uses Minor Planet Ephemeris Service to generate perturbed ephemerides for comets. Comet magnitudes are calculated based on derived magnitude parameters from the latest available observations in the COBS database.

Sep 8, 2023 · Comet 103P Hartley is also sometimes referred to Comet Hartley 2. The comet reaches perihelion just beyond Earth’s orbit, at 1.05 Astronomical Units (AU) from the Sun. The next perihelion passage...