2709 Sagan

Infobox Planet | discovery=yes | physical_characteristics = yes | bgcolour=#FFFFC0
name=2709 Sagan
discoverer=Edward L. G. Bowell
discovered=March 21, 1982
alt_names=mp|1951 WF|1; 1959 CC; mp|1959 EA|1; 1964 WT; mp|1982 FE|2; 1982 FH
mp_category=Main belt (Flora family)
epoch=June 14, 2006 (JD 2453900.5)
semimajor=328.437 Gm (2.195 AU)
perihelion=305.739 Gm (2.044 AU)
aphelion=351.134 Gm (2.347 AU)
eccentricity=0.069
period=1188.195 d (3.25 a)
inclination=2.733°
asc_node=241.289°
arg_peri=308.010°
mean_anomaly=157.291°
avg_speed=20.08 km/s
dimensions=20.2 km
mass=8.6e|15? kg
density=2.0? g/cm³
surface_grav=0.0056? m/s²
escape_velocity=0.0107? km/s
rotation=? d
spectral_type=S
abs_magnitude=13.3
albedo=0.10?
single_temperature=~188 K

2709 Sagan is a small main belt asteroid, which was discovered by Edward L. G. Bowell in 1982. It is named after the late astronomer Carl Sagan.

Sagan is an S-type asteroid, meaning that it is bright in colour and metallic in composition.