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) Vesta7.82.28 AU3.27 AU5.0°2.2°19 Jun 20185.32.16 AU1.14 AU176.2°1.8°
(7) Iris7.81.86 AU0.98 AU139.6°20.4°30 Oct 20176.91.84 AU0.85 AU171.8°4.4°
(2) Pallas8.52.63 AU1.87 AU129.9°17.0°29 Oct 20178.22.54 AU1.70 AU140.5°14.4°
(89) Julia9.22.08 AU1.14 AU152.7°12.8°8 Sep 20179.02.08 AU1.10 AU162.3°8.5°
(704) Interamnia9.92.59 AU1.66 AU151.4°10.7°1 Oct 20179.92.59 AU1.66 AU152.4°10.3°
(8) Flora10.11.88 AU1.67 AU85.7°32.1°2 Jan 20188.22.02 AU1.03 AU177.9°1.0°
(6) Hebe10.32.31 AU2.19 AU83.8°25.6°28 Dec 20188.42.22 AU1.26 AU162.0°7.8°
(44) Nysa10.42.34 AU1.53 AU134.2°17.9°3 Nov 20179.62.28 AU1.29 AU173.4°2.9°
(20) Massalia10.52.15 AU1.78 AU97.1°27.6°17 Dec 20178.42.08 AU1.09 AU178.6°0.7°
(25) Phocaea10.51.85 AU1.08 AU125.3°26.3°11 Aug 201710.01.80 AU0.93 AU135.9°23.1°
(3) Juno10.62.90 AU2.67 AU93.0°20.2°17 Nov 20187.41.98 AU1.04 AU156.9°11.3°
(349) Dembowska10.62.70 AU2.23 AU107.0°20.8°1 Dec 20179.62.74 AU1.76 AU172.2°2.8°
(344) Desiderata10.82.13 AU1.19 AU153.2°12.3°19 Sep 201710.82.11 AU1.17 AU152.9°12.5°
(354) Eleonora10.93.08 AU2.12 AU158.5°6.9°11 Sep 201710.83.09 AU2.10 AU166.9°4.3°
(10) Hygiea10.92.94 AU2.69 AU94.1°19.9°24 Sep 201810.13.32 AU2.32 AU174.6°1.6°
(532) Herculina10.93.17 AU2.42 AU130.8°13.8°3 Nov 201710.43.13 AU2.19 AU158.2°6.8°
(15) Eunomia11.13.10 AU4.07 AU10.8°3.5°8 May 20189.83.11 AU2.13 AU164.2°5.1°
(14) Irene11.22.22 AU3.05 AU28.7°12.5°24 Jul 201810.02.72 AU1.71 AU171.7°3.1°
(186) Celuta11.22.07 AU1.09 AU164.0°7.7°7 Oct 201710.82.08 AU1.08 AU179.0°0.5°
(324) Bamberga11.32.18 AU1.96 AU88.4°27.4°21 Jan 201910.42.65 AU1.67 AU171.8°3.0°
(29) Amphitrite11.32.71 AU3.63 AU19.6°7.1°15 Jun 20189.52.72 AU1.71 AU170.3°3.6°
(42) Isis11.32.22 AU1.56 AU118.5°23.4°17 Nov 201710.42.35 AU1.36 AU172.8°3.0°
(712) Boliviana11.42.26 AU1.29 AU158.5°9.4°16 Sep 201711.32.27 AU1.30 AU160.8°8.4°
(337) Devosa11.42.36 AU1.35 AU177.7°1.0°23 Sep 201711.42.36 AU1.36 AU178.7°0.5°
(40) Harmonia11.42.22 AU1.97 AU90.7°26.9°8 Dec 20189.42.23 AU1.25 AU177.5°1.1°
(12) Victoria11.51.91 AU2.28 AU55.7°25.8°22 Nov 201810.12.45 AU1.46 AU178.9°0.5°
(804) Hispania11.62.44 AU1.58 AU141.6°14.8°22 Aug 201710.92.44 AU1.44 AU171.5°3.5°
(9) Metis11.62.57 AU3.49 AU19.3°7.4°17 Jun 20189.72.67 AU1.66 AU177.4°1.0°
(64) Angelina11.62.73 AU1.83 AU148.3°11.1°21 Oct 201711.12.70 AU1.70 AU177.8°0.8°
(216) Kleopatra11.62.49 AU1.93 AU112.2°21.9°10 Jan 201910.62.45 AU1.50 AU159.2°8.2°
(31) Euphrosyne11.62.49 AU2.27 AU90.9°23.7°23 Dec 201710.52.46 AU1.60 AU142.7°14.0°
(241) Germania11.72.74 AU1.80 AU153.9°9.3°3 Sep 201711.32.74 AU1.74 AU171.8°3.0°
(39) Laetitia11.73.08 AU4.08 AU3.9°1.3°3 May 201810.33.00 AU2.02 AU165.9°4.7°
(264) Libussa11.72.43 AU1.46 AU163.1°6.9°5 Oct 201711.52.43 AU1.44 AU169.1°4.4°
(13) Egeria11.72.45 AU3.44 AU7.8°3.2°19 May 201810.22.65 AU1.64 AU173.0°2.7°
(18) Melpomene11.72.51 AU3.35 AU27.3°10.6°21 Mar 201810.22.76 AU1.77 AU172.1°2.9°
(48) Doris11.82.93 AU2.19 AU129.8°15.2°8 Nov 201710.92.91 AU1.93 AU173.3°2.3°
(1021) Flammario11.82.12 AU1.20 AU149.2°14.0°8 Sep 201711.72.17 AU1.20 AU157.4°10.3°
(41) Daphne11.82.02 AU2.66 AU41.2°19.1°2 Sep 201811.12.88 AU1.88 AU171.9°2.8°
(419) Aurelia11.82.16 AU1.37 AU129.7°21.0°9 Aug 201710.42.06 AU1.05 AU172.3°3.8°
(505) Cava11.82.33 AU1.36 AU161.0°8.0°18 Sep 201711.82.35 AU1.37 AU163.1°7.2°
(87) Sylvia11.83.16 AU2.26 AU148.5°9.5°31 Aug 201711.53.16 AU2.18 AU164.1°5.0°
(451) Patientia11.92.83 AU2.52 AU97.8°20.5°11 Dec 201710.42.84 AU1.85 AU175.8°1.4°
(776) Berbericia11.92.61 AU1.89 AU125.8°18.1°11 Aug 201711.52.68 AU1.72 AU155.0°9.2°


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.