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
(2) Pallas8.02.56 AU1.66 AU147.5°12.1°10 Apr 20197.92.54 AU1.61 AU152.1°10.7°
(4) Vesta8.22.39 AU3.29 AU22.9°9.4°12 Nov 20196.52.55 AU1.57 AU170.5°3.7°
(7) Iris9.72.84 AU1.88 AU159.6°7.1°5 Apr 20199.42.82 AU1.83 AU172.3°2.7°
(3) Juno9.92.17 AU2.49 AU60.0°23.6°3 Apr 20209.53.06 AU2.06 AU172.2°2.5°
(44) Nysa9.92.42 AU1.42 AU172.3°3.2°24 Apr 20199.92.43 AU1.42 AU173.7°2.6°
(532) Herculina10.02.32 AU1.89 AU101.7°25.1°2 Jul 20209.32.74 AU1.73 AU176.8°1.2°
(8) Flora10.12.54 AU1.60 AU153.3°10.2°12 May 20199.72.53 AU1.53 AU171.5°3.4°
(11) Parthenope10.12.45 AU1.52 AU151.5°11.3°14 May 20199.52.42 AU1.42 AU172.4°3.2°
(20) Massalia10.42.60 AU1.71 AU145.2°12.8°20 May 20199.72.63 AU1.62 AU179.1°0.3°
(15) Eunomia10.52.62 AU2.67 AU76.3°21.8°13 Aug 20198.22.40 AU1.39 AU170.6°4.0°
(405) Thia10.51.96 AU0.98 AU162.6°8.8°20 Apr 201910.51.96 AU0.98 AU162.6°8.8°
(6) Hebe10.72.48 AU2.57 AU73.3°22.9°4 Apr 20209.92.92 AU1.95 AU161.4°6.3°
(18) Melpomene10.92.44 AU1.96 AU105.9°23.4°2 Jul 20199.22.26 AU1.26 AU165.8°6.3°
(349) Dembowska11.13.15 AU2.51 AU120.9°15.9°27 Feb 201910.33.12 AU2.14 AU170.2°3.1°
(29) Amphitrite11.22.52 AU3.20 AU40.8°15.1°14 Oct 20198.72.41 AU1.41 AU175.8°1.7°
(17) Thetis11.22.33 AU1.45 AU143.8°14.7°22 Mar 201910.72.38 AU1.38 AU172.0°3.3°
(192) Nausikaa11.31.82 AU2.77 AU14.3°7.9°9 Jan 202010.02.31 AU1.33 AU170.3°4.1°
(32) Pomona11.32.41 AU1.56 AU138.9°15.9°27 May 201910.52.43 AU1.42 AU176.0°1.6°
(19) Fortuna11.32.82 AU1.86 AU157.8°7.7°9 May 201910.72.81 AU1.80 AU179.0°0.4°
(39) Laetitia11.32.63 AU2.73 AU73.6°21.5°17 Aug 20199.12.52 AU1.51 AU176.0°1.6°
(68) Leto11.42.96 AU2.03 AU152.2°9.1°14 May 201910.72.92 AU1.91 AU177.8°0.7°
(67) Asia11.42.45 AU1.45 AU171.2°3.6°14 Apr 201911.12.47 AU1.46 AU179.8°0.1°
(31) Euphrosyne11.43.26 AU2.27 AU170.2°3.0°14 Apr 201911.33.25 AU2.25 AU174.5°1.7°
(16) Psyche11.42.85 AU2.86 AU78.9°20.3°7 Aug 20199.32.70 AU1.69 AU178.3°0.6°
(64) Angelina11.42.43 AU1.71 AU125.1°19.8°2 Mar 201910.42.39 AU1.40 AU178.4°0.7°
(27) Euterpe11.42.00 AU2.95 AU15.8°7.8°14 Mar 20209.42.23 AU1.23 AU177.1°1.3°
(385) Ilmatar11.42.51 AU1.66 AU139.6°15.0°17 Mar 201910.62.50 AU1.51 AU175.4°1.8°
(9) Metis11.42.39 AU3.09 AU38.7°15.2°26 Oct 20198.62.16 AU1.17 AU173.8°2.9°
(354) Eleonora11.52.52 AU2.82 AU62.4°20.7°14 Apr 202010.12.61 AU1.67 AU153.5°9.9°
(10) Hygiea11.53.46 AU4.46 AU3.1°0.9°26 Nov 201910.33.49 AU2.50 AU176.5°1.0°
(511) Davida11.62.66 AU3.62 AU15.6°5.8°15 Jan 20209.62.62 AU1.64 AU176.9°1.2°
(194) Prokne11.72.72 AU1.76 AU157.6°8.1°18 Apr 201911.72.73 AU1.77 AU158.1°7.9°
(129) Antigone11.72.69 AU2.17 AU110.4°20.5°15 Jul 20209.92.39 AU1.38 AU171.7°3.5°
(23) Thalia11.72.11 AU2.80 AU38.6°17.3°24 Apr 202010.02.44 AU1.44 AU170.7°3.8°
(410) Chloris11.72.11 AU1.39 AU123.0°23.5°14 Jun 201910.32.07 AU1.06 AU174.6°2.6°
(451) Patientia11.83.13 AU2.40 AU128.9°14.5°10 Mar 201911.33.10 AU2.15 AU158.1°6.9°
(22) Kalliope11.83.19 AU2.57 AU119.9°15.9°15 Jun 201910.83.17 AU2.16 AU173.9°2.0°
(111) Ate11.82.51 AU1.62 AU144.1°13.6°22 Mar 201911.12.47 AU1.48 AU173.2°2.7°
(37) Fides11.92.22 AU3.21 AU7.8°3.5°2 Feb 202010.12.37 AU1.39 AU175.6°1.8°
(259) Aletheia11.92.86 AU1.89 AU161.7°6.3°11 Apr 201911.92.87 AU1.89 AU164.9°5.2°
(308) Polyxo11.92.72 AU1.74 AU167.3°4.6°1 May 201911.72.72 AU1.71 AU175.7°1.6°


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)
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.