Bright asteroids

The table below lists asteroids that are currently bright enough for amateur telescopes. Near-earth objects are not included in this list.
For detailed information about one of the listed asteroids, click on its name/designation.

Asteroid Today Opposition
designation magn radius delta elong phase date magn radius delta elong phase
(4) Vesta8.52.55 AU3.50 AU17.8°7.0°4 Mar 20216.12.34 AU1.36 AU169.2°4.5°
(7) Iris9.72.69 AU1.77 AU148.3°11.4°28 Jun 20208.92.63 AU1.62 AU177.4°1.0°
(2) Pallas9.83.33 AU2.72 AU119.1°15.4°13 Jul 20209.63.37 AU2.56 AU136.4°12.0°
(15) Eunomia10.02.18 AU3.15 AU13.0°6.0°21 Jan 20218.52.55 AU1.57 AU177.0°1.2°
(42) Isis10.12.21 AU1.21 AU168.2°5.4°23 May 202010.02.23 AU1.22 AU174.1°2.7°
(532) Herculina10.22.69 AU1.80 AU143.1°13.1°2 Jul 20209.52.74 AU1.73 AU176.8°1.2°
(18) Melpomene10.61.85 AU2.81 AU14.4°7.8°2 Feb 20219.42.41 AU1.42 AU174.9°2.1°
(3) Juno10.63.16 AU2.60 AU114.6°17.0°2 Apr 20209.53.05 AU2.06 AU172.2°2.5°
(40) Harmonia10.72.35 AU1.52 AU135.1°17.7°23 Apr 20209.82.36 AU1.36 AU173.5°2.8°
(354) Eleonora10.82.66 AU1.97 AU122.6°18.7°13 Apr 202010.12.61 AU1.67 AU153.6°9.8°
(349) Dembowska10.83.13 AU2.17 AU156.4°7.5°12 May 202010.43.14 AU2.13 AU176.0°1.3°
(29) Amphitrite10.92.38 AU3.37 AU10.3°4.4°22 Feb 20219.22.55 AU1.56 AU176.1°1.5°
(85) Io10.92.37 AU1.40 AU158.4°9.0°12 Jun 202010.82.35 AU1.36 AU162.2°7.6°
(8) Flora10.91.99 AU2.18 AU65.5°27.7°1 Nov 20208.01.86 AU0.88 AU168.0°6.4°
(6) Hebe10.92.91 AU2.34 AU114.4°18.5°4 Apr 202010.12.92 AU1.95 AU161.4°6.3°
(129) Antigone11.02.33 AU1.54 AU130.0°19.5°15 Jul 202010.12.39 AU1.38 AU171.7°3.5°
(23) Thalia11.02.54 AU1.71 AU136.7°15.9°24 Apr 202010.02.44 AU1.44 AU170.7°3.8°
(9) Metis11.02.12 AU3.01 AU24.2°11.3°4 Apr 20219.52.50 AU1.50 AU172.4°3.0°
(779) Nina11.12.46 AU1.47 AU166.2°5.7°31 May 202011.12.47 AU1.47 AU166.1°5.7°
(56) Melete11.12.03 AU1.11 AU146.1°16.1°28 Jun 202010.62.00 AU1.01 AU163.8°8.1°
(39) Laetitia11.42.50 AU3.40 AU23.1°9.1°21 Dec 20209.92.70 AU1.74 AU165.0°5.4°
(16) Psyche11.42.54 AU3.36 AU30.5°11.7°7 Dec 20209.52.68 AU1.69 AU175.2°1.8°
(100) Hekate11.42.74 AU1.74 AU168.1°4.4°8 Jun 202011.32.73 AU1.72 AU172.2°2.9°
(11) Parthenope11.42.23 AU2.56 AU59.9°23.2°23 Oct 20209.32.34 AU1.36 AU172.0°3.4°
(270) Anahita11.52.17 AU1.19 AU161.1°8.7°16 May 202011.02.20 AU1.19 AU178.5°0.7°
(71) Niobe11.52.29 AU1.77 AU107.7°25.0°21 Aug 202111.12.81 AU1.80 AU172.0°2.9°
(5) Astraea11.52.12 AU2.25 AU69.6°26.7°20 Jun 202110.72.81 AU1.80 AU173.3°2.4°
(27) Euterpe11.52.38 AU1.97 AU100.8°24.7°3 Jul 202110.42.74 AU1.73 AU179.4°0.2°
(451) Patientia11.53.29 AU2.29 AU167.2°3.9°24 May 202011.53.29 AU2.29 AU170.2°3.0°
(68) Leto11.62.29 AU2.31 AU75.9°25.5°30 Sep 20209.52.28 AU1.29 AU171.5°3.7°
(14) Irene11.62.73 AU3.74 AU3.9°1.4°24 Jan 20219.22.32 AU1.34 AU170.1°4.2°
(89) Julia11.72.87 AU2.16 AU125.7°16.7°17 Apr 202011.22.93 AU1.98 AU156.4°7.9°
(654) Zelinda11.72.40 AU1.42 AU163.3°7.0°28 May 202011.72.39 AU1.41 AU163.4°7.0°
(20) Massalia11.72.68 AU2.44 AU92.1°22.2°29 Aug 20209.72.58 AU1.57 AU179.1°0.3°
(110) Lydia11.82.65 AU1.70 AU155.9°9.0°21 Jun 202011.32.64 AU1.63 AU174.6°2.1°
(10) Hygiea11.83.42 AU4.38 AU15.5°4.6°28 Jan 20219.93.21 AU2.22 AU177.4°0.8°
(19) Fortuna11.82.29 AU2.10 AU87.5°26.2°11 Sep 20209.32.14 AU1.13 AU177.9°1.0°
(471) Papagena11.92.41 AU2.70 AU62.6°22.0°26 Oct 20209.72.24 AU1.28 AU159.1°9.1°

For each of the asteroids listed, the current position is plotted in the below all-sky chart:

    delta:      Distance between asteroid and earth in AU
    radius:     Distance between asteroid and sun in AU
    magn:       Magnitude (brightness) estimate    
    elong:      Elongation in degrees (angle sun-earth-asteroid)    
    AU:         Astronomical Unit (mean distance between earth and sun: 149597870.7 km    
    Perihelion: On this date the comet (or other type of body) is closest to the sun

Orbital elements provided by the MPC (Minor Planet Center).
Calculations by a modified version of AAPlus, a C# implementation of the AA+ project by PJ Naughter from the algorithms presented in the book "Astronomical Algorithms" by Jean Meeus.
NGC2000 dso catalog and star labels from VizieR as provided by the Strasbourg astronomical Data Center.
Tycho2 catalog from the ESO archive.