(3847) Sindel Main-belt Asteroid

Discovered on 16 February 1982 by A. Mrkos at Klet.

Named in memory of Jan Ondřejův, known as Šindel (c.1375-c.1456), Czech medieval astronomer, mathematician, physician, professor at the universities in Nuremberg, Vienna and Prague, rector of the Charles University in Prague. He designed the famous Prague astronomical clock, which was built by the clockmaster Nicolas of Kadaň in 1410 and is still working today. Name suggested by J. Ticha and M. Šolc.Naming citation (19960828/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL

Where Sindel is today

Seen from above the solar system on 2026-10-14: Sindel is 3.29 au from the Sun and 4.10 au from Earth. Computed from JPL's orbital elements.

Facts

Number	3847
Provisional designation	1982 DY1
Orbit class	Main-belt Asteroid
Diameter	19.0 km (#2,358 largest of 17,440 named asteroids with a measured size)
Albedo	0.0930
Absolute magnitude (H)	12.1
Orbital period	5.56 years
Semi-major axis	3.14 au
Perihelion – aphelion	2.83 – 3.45 au
Eccentricity	0.0985
Inclination	3.42°
Closest distance between its orbit and Earth's (MOID)	1.84 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 16 February 1982

More named asteroids discovered by A. Mrkos

All 217

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