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) Vesta 8.22.37 AU2.94 AU46.9°18.3°19 Jun 20185.32.16 AU1.14 AU176.2°1.8°
(6) Hebe 9.22.52 AU1.54 AU159.2°8.3°17 Jun 20179.22.53 AU1.55 AU160.4°7.7°
(10) Hygiea 9.32.86 AU1.85 AU173.3°2.4°29 Jun 20179.12.86 AU1.85 AU178.9°0.4°
(40) Harmonia 9.32.27 AU1.25 AU179.3°0.3°23 Jun 20179.32.27 AU1.25 AU179.4°0.3°
(7) Iris 9.82.03 AU1.97 AU78.6°29.4°30 Oct 20176.91.84 AU0.85 AU171.8°4.4°
(3) Juno 9.83.10 AU2.12 AU159.4°6.6°2 Jul 20179.83.08 AU2.10 AU161.9°5.9°
(2) Pallas 9.92.85 AU3.14 AU64.1°18.7°29 Oct 20178.22.54 AU1.70 AU140.5°14.4°
(324) Bamberga 10.32.53 AU1.53 AU164.7°6.1°23 Jun 201710.32.53 AU1.54 AU164.7°6.1°
(25) Phocaea 10.51.79 AU1.05 AU120.3°29.3°11 Aug 201710.01.80 AU0.93 AU135.9°23.1°
(89) Julia 10.62.15 AU1.64 AU105.0°27.2°8 Sep 20179.02.08 AU1.10 AU162.3°8.5°
(8) Flora 10.71.86 AU2.44 AU44.8°22.6°2 Jan 20188.22.02 AU1.03 AU177.9°1.0°
(270) Anahita 10.81.98 AU0.98 AU164.3°8.0°7 Jul 201710.31.96 AU0.94 AU177.5°1.3°
(12) Victoria 10.92.11 AU1.53 AU110.0°27.0°22 Nov 201810.12.45 AU1.46 AU178.9°0.5°
(5) Astraea 10.92.89 AU1.89 AU168.9°3.9°2 Jul 201710.82.90 AU1.89 AU174.5°1.9°
(14) Irene 10.92.16 AU2.23 AU72.8°26.7°24 Jul 201810.02.72 AU1.71 AU171.7°3.1°
(346) Hermentaria 10.92.88 AU1.87 AU177.5°0.9°22 Jun 201710.82.88 AU1.87 AU179.6°0.1°
(15) Eunomia 11.13.01 AU3.30 AU64.5°17.8°8 May 20189.83.11 AU2.13 AU164.2°5.1°
(29) Amphitrite 11.22.66 AU2.75 AU74.3°21.6°15 Jun 20189.52.72 AU1.71 AU170.3°3.6°
(27) Euterpe 11.22.71 AU1.81 AU145.7°12.2°25 May 201710.42.69 AU1.68 AU178.5°0.6°
(349) Dembowska 11.32.66 AU3.29 AU44.5°15.5°1 Dec 20179.62.74 AU1.76 AU172.2°2.8°
(101) Helena 11.32.36 AU1.37 AU163.2°7.1°24 Jun 201711.32.36 AU1.37 AU163.2°7.1°
(419) Aurelia 11.31.98 AU1.17 AU130.2°23.0°9 Aug 201710.42.06 AU1.05 AU172.3°3.8°
(18) Melpomene 11.42.29 AU3.22 AU20.0°8.7°21 Mar 201810.22.76 AU1.77 AU172.1°2.9°
(9) Metis 11.42.46 AU2.60 AU70.7°23.0°17 Jun 20189.72.67 AU1.66 AU177.4°1.0°
(704) Interamnia 11.42.64 AU2.50 AU86.6°22.6°1 Oct 20179.92.59 AU1.66 AU152.4°10.3°
(20) Massalia 11.42.27 AU2.87 AU45.6°18.6°17 Dec 20178.42.08 AU1.09 AU178.6°0.7°
(41) Daphne 11.42.02 AU1.89 AU82.2°29.9°2 Sep 201811.12.88 AU1.88 AU171.9°2.8°
(63) Ausonia 11.42.18 AU1.69 AU104.5°26.9°7 Oct 201810.52.41 AU1.42 AU174.1°2.4°
(389) Industria 11.42.55 AU1.57 AU159.6°8.0°7 Jun 201711.12.53 AU1.52 AU174.0°2.4°
(28) Bellona 11.53.08 AU2.08 AU168.4°3.8°21 Jun 201711.53.08 AU2.07 AU168.6°3.8°
(196) Philomela 11.53.07 AU2.25 AU136.9°13.1°16 May 201710.73.07 AU2.06 AU176.8°1.1°
(216) Kleopatra 11.52.74 AU1.88 AU140.4°13.7°25 Jul 201711.02.66 AU1.68 AU159.1°7.9°
(133) Cyrene 11.62.67 AU1.66 AU170.8°3.5°21 Jun 201711.52.67 AU1.66 AU171.2°3.4°
(128) Nemesis 11.62.69 AU1.77 AU148.7°11.3°21 Jul 201711.02.66 AU1.64 AU173.2°2.6°
(52) Europa 11.63.27 AU2.50 AU132.0°13.4°12 May 201710.93.23 AU2.23 AU169.4°3.3°
(344) Desiderata 11.71.87 AU1.47 AU95.6°32.8°19 Sep 201710.82.11 AU1.17 AU152.9°12.5°
(476) Hedwig 11.72.46 AU1.45 AU170.6°3.9°1 Jul 201711.52.46 AU1.44 AU177.6°1.0°
(11) Parthenope 11.72.54 AU3.54 AU10.4°4.2°26 Jan 20189.92.69 AU1.70 AU179.2°0.3°
(511) Davida 11.73.68 AU2.73 AU155.1°6.7°16 Jul 201711.33.66 AU2.64 AU177.7°0.6°
(19) Fortuna 11.82.10 AU3.04 AU18.0°8.6°2 Feb 201810.12.44 AU1.46 AU177.4°1.0°
(83) Beatrix 11.82.33 AU1.36 AU156.2°10.1°4 Jun 201711.32.31 AU1.30 AU173.6°2.8°
(376) Geometria 11.81.90 AU0.99 AU141.7°19.4°21 May 201711.11.91 AU0.90 AU169.8°5.4°
(230) Athamantis 11.92.52 AU2.05 AU105.2°22.9°26 Aug 201810.22.28 AU1.29 AU163.2°7.4°
(80) Sappho 11.92.41 AU1.61 AU132.1°18.3°14 May 201711.02.49 AU1.48 AU176.4°1.5°
(354) Eleonora 11.93.11 AU2.80 AU98.1°18.9°11 Sep 201710.83.09 AU2.10 AU166.9°4.3°
(44) Nysa 11.92.49 AU2.74 AU65.3°21.7°3 Nov 20179.62.28 AU1.29 AU173.4°2.9°
(532) Herculina 11.93.24 AU3.64 AU58.8°15.6°3 Nov 201710.43.13 AU2.19 AU158.2°6.8°
(37) Fides 11.93.10 AU2.15 AU154.5°8.1°2 Jun 201711.53.10 AU2.09 AU175.9°1.3°
(13) Egeria 11.92.39 AU2.96 AU47.3°18.2°19 May 201810.22.65 AU1.64 AU173.0°2.7°


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.