(7849) Janjosefric Main-belt Asteroid

Discovered on 18 April 1996 by Pravec, P., Sarounova, L. at Ondrejov.

Named in memory of Jan Frič (1863–1897) and Josef Frič (1861–1945), the two brothers who founded the Ondřejov Observatory. On 1898 Jan. 21, one year after Jan's sudden death, Josef started to bring to fruition their shared idea of establishing an astronomical institution. He purchased the land, and he adopted Jan's name as his own second name. The observatory grew extensively during the twentieth century and became internationally renowned. It was at Ondřejov that Josef Jan Frič, together with František Nušl, discovered an anomalous refraction effect and developed astrogeodetic instruments, such as the well-known Nušl-Frič circumzenithal, for the determination of geographical coordinates. Name proposed by M. Kopecký, astronomer and archivist of the Ondřejov Observatory.Naming citation (WGSBN Bull. 5, #19, 5), IAU / Minor Planet Center, via NASA/JPL

Where Janjosefric is today

Seen from above the solar system on 2026-10-14: Janjosefric is 2.61 au from the Sun and 3.16 au from Earth. Computed from JPL's orbital elements.

Facts

Number	7849
Provisional designation	1996 HR
Orbit class	Main-belt Asteroid
Diameter	8.36 km (#6,254 largest of 17,440 named asteroids with a measured size)
Albedo	0.0700
Absolute magnitude (H)	14.07
Orbital period	4.52 years
Semi-major axis	2.73 au
Perihelion – aphelion	2.47 – 3.00 au
Eccentricity	0.0967
Inclination	6.02°
Closest distance between its orbit and Earth's (MOID)	1.48 au

Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.

Also named after someone called Jan

All asteroids named after someone called Jan

Also discovered on 18 April 1996

More named asteroids discovered by Pravec, P., Sarounova, L.

All 19

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