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
(7) Iris7.41.83 AU0.90 AU153.1°14.1°30 Oct 20176.91.84 AU0.85 AU171.8°4.4°
(4) Vesta7.92.23 AU3.06 AU26.9°11.6°19 Jun 20185.32.16 AU1.14 AU176.2°1.8°
(2) Pallas8.32.49 AU1.73 AU130.3°17.6°29 Oct 20178.22.54 AU1.70 AU140.5°14.4°
(20) Massalia9.22.09 AU1.19 AU147.6°14.7°17 Dec 20178.42.08 AU1.09 AU178.6°0.7°
(8) Flora9.21.95 AU1.17 AU128.9°23.2°2 Jan 20188.22.02 AU1.03 AU177.9°1.0°
(349) Dembowska9.72.73 AU1.77 AU165.1°5.3°1 Dec 20179.62.74 AU1.76 AU172.2°2.8°
(44) Nysa9.82.25 AU1.31 AU157.0°9.9°3 Nov 20179.62.28 AU1.29 AU173.4°2.9°
(42) Isis10.42.36 AU1.38 AU171.6°3.5°17 Nov 201710.42.35 AU1.36 AU172.8°3.0°
(6) Hebe10.42.18 AU2.69 AU49.3°20.1°28 Dec 20188.42.22 AU1.26 AU162.0°7.8°
(89) Julia10.52.09 AU1.61 AU104.9°27.1°31 Jan 201910.22.82 AU1.84 AU179.5°0.2°
(532) Herculina10.53.11 AU2.22 AU149.9°9.2°3 Nov 201710.43.13 AU2.19 AU158.2°6.8°
(704) Interamnia10.62.59 AU1.94 AU120.9°19.1°1 Oct 20179.92.59 AU1.66 AU152.4°10.3°
(31) Euphrosyne10.82.46 AU1.69 AU131.3°17.5°23 Dec 201710.52.46 AU1.60 AU142.7°14.0°
(3) Juno10.82.76 AU3.26 AU51.9°16.4°17 Nov 20187.41.98 AU1.04 AU156.9°11.3°
(14) Irene10.92.30 AU3.28 AU3.0°1.3°24 Jul 201810.02.72 AU1.71 AU171.7°3.1°
(451) Patientia10.92.83 AU1.91 AU154.3°8.7°11 Dec 201710.42.84 AU1.85 AU175.8°1.4°
(48) Doris11.12.91 AU1.95 AU163.0°5.7°8 Nov 201710.92.91 AU1.93 AU173.3°2.3°
(211) Isolda11.22.56 AU1.58 AU174.4°2.1°25 Nov 201711.12.56 AU1.58 AU177.7°0.9°
(29) Amphitrite11.22.73 AU3.68 AU13.6°4.9°15 Jun 20189.52.72 AU1.71 AU170.3°3.6°
(15) Eunomia11.33.13 AU3.93 AU30.8°9.3°8 May 20189.83.11 AU2.13 AU164.2°5.1°
(372) Palma11.42.33 AU1.60 AU126.7°19.8°29 Dec 201710.92.34 AU1.45 AU148.6°12.6°
(10) Hygiea11.43.00 AU3.48 AU53.2°15.3°24 Sep 201810.13.32 AU2.32 AU174.6°1.6°
(324) Bamberga11.41.98 AU2.37 AU55.0°24.1°21 Jan 201910.42.65 AU1.67 AU171.8°3.0°
(11) Parthenope11.42.66 AU2.22 AU105.5°21.0°26 Jan 20189.92.69 AU1.70 AU179.2°0.3°
(12) Victoria11.41.84 AU2.59 AU32.3°16.7°22 Nov 201810.12.45 AU1.46 AU178.9°0.5°
(236) Honoria11.52.41 AU1.44 AU164.3°6.4°10 Nov 201711.22.39 AU1.41 AU171.1°3.7°
(111) Ate11.52.47 AU1.53 AU156.3°9.2°2 Nov 201711.22.49 AU1.50 AU171.8°3.3°
(9) Metis11.52.62 AU3.57 AU12.8°4.8°17 Jun 20189.72.67 AU1.66 AU177.4°1.0°
(64) Angelina11.52.66 AU1.80 AU143.6°12.7°21 Oct 201711.12.70 AU1.70 AU177.8°0.8°
(19) Fortuna11.62.32 AU1.92 AU100.7°24.8°2 Feb 201810.12.44 AU1.46 AU177.4°1.0°
(92) Undina11.63.22 AU2.35 AU146.6°9.7°18 Dec 201711.13.24 AU2.26 AU176.2°1.2°
(59) Elpis11.62.50 AU1.60 AU149.5°11.6°13 Dec 201711.32.52 AU1.56 AU165.9°5.5°
(25) Phocaea11.71.97 AU1.65 AU93.0°30.1°31 Dec 201812.32.93 AU2.03 AU150.9°9.4°
(354) Eleonora11.73.04 AU2.67 AU102.6°18.5°14 Dec 201810.22.64 AU1.71 AU155.1°9.0°
(134) Sophrosyne11.72.28 AU1.33 AU157.3°9.6°10 Nov 201711.62.28 AU1.32 AU162.1°7.7°
(41) Daphne11.82.10 AU3.01 AU19.7°9.1°2 Sep 201811.12.88 AU1.88 AU171.9°2.8°
(18) Melpomene11.82.61 AU2.92 AU62.5°19.6°21 Mar 201810.22.76 AU1.77 AU172.1°2.9°
(141) Lumen11.82.30 AU1.43 AU143.7°14.7°17 Dec 201711.52.35 AU1.39 AU163.7°6.8°
(385) Ilmatar11.82.93 AU1.98 AU158.9°7.0°27 Nov 201711.82.92 AU1.97 AU160.0°6.6°
(40) Harmonia11.82.19 AU2.58 AU56.2°22.0°8 Dec 20189.42.23 AU1.25 AU177.5°1.1°
(554) Peraga11.82.03 AU1.12 AU147.5°15.2°25 Oct 201711.22.05 AU1.06 AU174.3°2.8°
(980) Anacostia11.92.57 AU1.71 AU143.7°13.2°19 Dec 201711.42.63 AU1.66 AU171.7°3.1°
(17) Thetis11.92.80 AU1.87 AU154.5°8.8°11 Dec 201711.52.80 AU1.82 AU173.7°2.2°


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.