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) Vesta7.82.18 AU2.50 AU60.0°23.0°19 Jun 20185.32.16 AU1.14 AU176.2°1.8°
(2) Pallas8.92.34 AU2.17 AU87.7°24.8°10 Apr 20197.92.54 AU1.61 AU152.1°10.7°
(8) Flora8.92.05 AU1.13 AU153.3°12.4°2 Jan 20188.22.02 AU1.03 AU177.9°1.0°
(7) Iris9.01.88 AU1.45 AU98.9°31.2°5 Apr 20199.42.82 AU1.83 AU172.3°2.7°
(20) Massalia9.42.07 AU1.24 AU135.7°19.4°17 Dec 20178.42.08 AU1.09 AU178.6°0.7°
(11) Parthenope10.02.69 AU1.70 AU176.7°1.2°26 Jan 20189.92.69 AU1.70 AU179.2°0.3°
(6) Hebe10.12.05 AU2.97 AU17.1°8.1°28 Dec 20188.42.22 AU1.26 AU162.0°7.8°
(19) Fortuna10.32.43 AU1.46 AU168.4°4.7°2 Feb 201810.12.44 AU1.46 AU177.4°1.0°
(3) Juno10.52.59 AU3.54 AU13.0°4.9°17 Nov 20187.41.98 AU1.04 AU156.9°11.3°
(349) Dembowska10.52.78 AU2.17 AU119.0°18.0°1 Dec 20179.62.74 AU1.76 AU172.2°2.8°
(51) Nemausa10.82.23 AU1.39 AU139.5°16.7°26 Feb 20189.82.22 AU1.23 AU174.1°2.6°
(31) Euphrosyne10.82.47 AU1.73 AU128.8°18.1°23 Dec 201710.52.46 AU1.60 AU142.7°14.0°
(44) Nysa10.82.16 AU1.83 AU95.4°27.0°24 Apr 20199.92.43 AU1.42 AU173.7°2.6°
(324) Bamberga11.11.82 AU2.65 AU26.7°14.1°21 Jan 201910.42.65 AU1.67 AU171.8°3.0°
(32) Pomona11.12.55 AU1.60 AU162.5°6.6°12 Jan 201810.92.57 AU1.59 AU171.5°3.2°
(372) Palma11.12.36 AU1.52 AU139.7°15.6°29 Dec 201710.92.34 AU1.45 AU148.6°12.6°
(145) Adeona11.12.29 AU1.34 AU160.0°8.4°12 Jan 201811.02.29 AU1.32 AU167.5°5.3°
(15) Eunomia11.13.14 AU3.24 AU75.5°17.7°8 May 20189.83.11 AU2.13 AU164.2°5.1°
(12) Victoria11.21.83 AU2.79 AU9.5°5.1°22 Nov 201810.12.45 AU1.46 AU178.9°0.5°
(18) Melpomene11.22.71 AU2.14 AU114.8°19.3°21 Mar 201810.22.76 AU1.77 AU172.1°2.9°
(10) Hygiea11.23.06 AU4.02 AU11.9°3.8°24 Sep 201810.13.32 AU2.32 AU174.6°1.6°
(89) Julia11.32.15 AU2.35 AU66.5°24.8°31 Jan 201910.22.82 AU1.84 AU179.5°0.2°
(532) Herculina11.33.03 AU2.84 AU91.5°18.9°6 Feb 20198.92.40 AU1.43 AU166.2°5.6°
(451) Patientia11.42.85 AU2.12 AU129.2°15.6°11 Dec 201710.42.84 AU1.85 AU175.8°1.4°
(29) Amphitrite11.42.74 AU3.21 AU53.0°16.7°15 Jun 20189.52.72 AU1.71 AU170.3°3.6°
(14) Irene11.52.40 AU3.17 AU32.8°12.8°24 Jul 201810.02.72 AU1.71 AU171.7°3.1°
(704) Interamnia11.52.61 AU2.71 AU73.5°21.2°15 Jan 201910.33.06 AU2.08 AU173.7°2.0°
(57) Mnemosyne11.53.02 AU2.08 AU158.4°6.9°25 Jan 201811.53.02 AU2.08 AU158.5°6.9°
(185) Eunike11.72.76 AU1.81 AU158.8°7.4°19 Jan 201811.62.75 AU1.81 AU158.9°7.4°
(40) Harmonia11.82.17 AU3.04 AU23.1°10.2°8 Dec 20189.42.23 AU1.25 AU177.5°1.1°
(9) Metis11.82.66 AU3.15 AU51.7°16.9°17 Jun 20189.72.67 AU1.66 AU177.4°1.0°
(22) Kalliope11.83.02 AU2.60 AU105.4°18.3°1 Apr 201810.93.08 AU2.10 AU163.4°5.3°
(39) Laetitia11.83.06 AU3.06 AU80.4°18.5°3 May 201810.33.00 AU2.02 AU165.9°4.7°
(487) Venetia11.82.67 AU1.70 AU167.8°4.5°2 Feb 201811.72.68 AU1.70 AU174.9°1.9°
(63) Ausonia11.92.11 AU3.09 AU5.3°2.5°7 Oct 201810.52.41 AU1.42 AU174.1°2.4°
(387) Aquitania11.92.10 AU3.06 AU10.6°4.9°29 Sep 201811.02.50 AU1.56 AU154.8°9.8°
(92) Undina11.93.28 AU2.49 AU137.0°11.8°18 Dec 201711.13.24 AU2.26 AU176.2°1.2°
(114) Kassandra11.92.43 AU1.55 AU146.9°12.8°28 Dec 201711.42.46 AU1.48 AU172.4°3.0°
(41) Daphne11.92.25 AU3.17 AU16.5°7.2°2 Sep 201811.12.88 AU1.88 AU171.9°2.8°


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





    Terminology:
            
    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 MPC (Minor Planet Center)
UCAC4 star catalog and NGC2000 dso catalog via VizieR as provided by the Strasbourg astronomical Data 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.