(5588) Jennabelle Main-belt Asteroid

Discovered on 23 September 1990 by B. Roman at Palomar.

Jenna Belle Weathers Roman (1911-1992) was the grandmother of the discoverer. She played a prominent role in his upbringing and his pursuit of astronomy.Naming citation (20060613/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL

Where Jennabelle is today

Seen from above the solar system on 2026-10-14: Jennabelle is 2.68 au from the Sun and 3.22 au from Earth. Computed from JPL's orbital elements.

Facts

Number	5588
Provisional designation	1990 SW3
Orbit class	Main-belt Asteroid
Diameter	10.9 km (#4,607 largest of 17,440 named asteroids with a measured size)
Albedo	0.162
Rotation period	7.48 hours
Spectral type	X
Absolute magnitude (H)	12.74
Orbital period	4.65 years
Semi-major axis	2.79 au
Perihelion – aphelion	2.40 – 3.18 au
Eccentricity	0.140
Inclination	12.4°
Closest distance between its orbit and Earth's (MOID)	1.42 au

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

Also named after someone called Jenna

• (12209) Jennalynn
• (17958) Schoof
• (18163) Jennalewis
• (31492) Jennarose

All asteroids named after someone called Jenna

Also discovered on 23 September 1990

• (4954) Eric
• (5589) De Meis
• (5621) Erb
• (8088) Australia
• (10315) Brewster

More named asteroids discovered by B. Roman

• (4954) Eric
• (5186) Donalu
• (12272) Geddylee
• (19155) Lifeson
• (23469) Neilpeart

← (5585) Parks · (5589) De Meis →