(231265) Saulperlmutter

Asteroid (231265) Saulperlmutter
Properties of the orbit ( animation ) Epoch: May 31, 2020 ( JD 2,459,000.5)
Orbit type	Middle main belt asteroid
Major semi-axis	2.8193 AU
eccentricity	0.0393
Perihelion - aphelion	2.7086 AU - 2.9301 AU
Inclination of the orbit plane	5.8779 °
Length of the ascending node	337.0850 °
Argument of the periapsis	303.6366 °
Time of passage of the perihelion	March 8, 2022
Sidereal period	4.73 a
Mean orbital velocity	16.58 km / s
Physical Properties
Absolute brightness	16.2 mag
history
Explorer	Vincenzo Silvano Casulli
Date of discovery	January 5, 2006
Another name	2006 AS ₄
Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items.

(231265) Saulperlmutter is an asteroid located in the central main belt . It was discovered by the Italian amateur astronomer Vincenzo Silvano Casulli on January 5, 2006 at the observatory in the district of Vallemare ( IAU code A55) in the municipality of Borbona in the province of Rieti .

Mean distance from the Sun ( major semiaxis ), eccentricity and inclination of the orbital plane of (231265) Saulperlmutter roughly correspond to the Dora family, a group of asteroids named after (668) Dora . However, the asteroid does not belong to any asteroid family.

(231265) Saulperlmutter was named on April 22, 2016 after the American astrophysicist Saul Perlmutter (* 1959) who received the Nobel Prize in Physics in 2011 together with Brian P. Schmidt and Adam Riess “for discovering the accelerated expansion of the universe through Observations of distant supernovae ”. After Brian P. Schmidt and Adam Riess, the asteroids (233292) Brianschmidt and (236305) Adamriess , also discovered by Vinzeno Silvano Casulli, were named on the same day .

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