Recently discovered comets

The below table lists comets that have been discovered in the past 6 months.
For detailed information about a comet, click on its designation.

Comet(s) Today Perihelion Nearest approach
designation Hₒ magn delta radius date magn radius date magn delta
C/2019 N1 (ATLAS)6.818.25.91 AU5.73 AU2 Dec 202011.01.70 AU8 Feb 202111.01.91 AU
P/2019 M221.118.70.27 AU1.12 AU22 Jun 201918.01.06 AU17 Jun 201918.00.21 AU
C/2019 L3 (ATLAS)4.918.67.96 AU8.23 AU9 Jan 202212.53.56 AU7 Jan 202212.52.59 AU
C/2019 L2 (NEOWISE)15.118.91.30 AU2.12 AU2 Apr 201919.31.62 AU10 Jul 201918.71.27 AU
C/2019 L1 (PANSTARRS)13.419.41.89 AU2.90 AU11 Aug 201919.42.89 AU23 Jul 201919.41.89 AU
C/2019 K8 (ATLAS)11.318.93.26 AU3.20 AU21 Jul 201918.93.20 AU5 Jun 201918.93.13 AU
C/2019 K7 (Smith)6.416.74.31 AU5.22 AU16 Jun 202015.84.47 AU16 Jul 202015.73.65 AU
A/2019 K610.220.14.13 AU4.72 AU20 May 202018.93.93 AU1 May 202018.52.93 AU
C/2019 K5 (Young)11.616.21.94 AU2.06 AU22 Jun 201916.32.04 AU9 Oct 201916.41.55 AU
C/2019 K412.417.72.25 AU2.29 AU16 Jun 201918.12.26 AU17 Sep 201917.21.50 AU
C/2019 K1 (ATLAS)9.916.92.49 AU3.15 AU13 Feb 202014.72.00 AU24 Feb 202014.72.28 AU
C/2019 JU6 (ATLAS)14.718.91.54 AU2.12 AU1 Jun 201918.72.05 AU25 Jun 201918.41.29 AU
C/2019 J3 (ATLAS)13.418.21.60 AU2.37 AU2 Aug 201918.52.36 AU24 Jun 201917.91.39 AU
C/2019 J2 (Palomar)13.014.81.76 AU1.72 AU19 Jul 201914.81.72 AU14 Jul 201914.81.75 AU
C/2019 J1 (Lemmon)13.118.61.71 AU2.70 AU8 Apr 201918.92.48 AU3 Jul 201918.41.68 AU
C/2019 H1 (NEOWISE)15.520.21.99 AU2.10 AU27 Apr 201918.91.84 AU22 May 201918.61.22 AU
P/2019 GG21 (PANSTARRS)13.021.84.02 AU3.81 AU3 Jul 201921.73.81 AU27 Mar 201921.22.87 AU
A/2019 G413.021.56.80 AU6.18 AU8 Nov 201821.45.94 AU17 Mar 201920.85.19 AU
A/2019 G317.123.73.81 AU3.52 AU3 Dec 201822.72.86 AU18 Apr 201921.72.13 AU
A/2019 G216.522.03.38 AU2.81 AU9 Dec 201920.62.30 AU11 Jan 202019.71.45 AU
P/2019 G1 (PANSTARRS)12.519.62.75 AU3.06 AU6 Jun 201919.13.05 AU27 Apr 201918.92.07 AU
C/2019 F2 (ATLAS)12.018.03.04 AU2.30 AU8 Sep 201918.02.23 AU14 Feb 201918.72.26 AU
C/2019 F1 (ATLAS-Africano)5.517.66.94 AU6.93 AU23 Jun 202113.03.60 AU21 Jun 202113.03.05 AU
C/2019 E3 (ATLAS)2.519.413.63 AU13.21 AU12 Nov 202317.710.36 AU24 Aug 202417.710.12 AU
C/2019 D1 (Flewelling)13.015.11.58 AU1.82 AU11 May 201914.51.58 AU10 Sep 201915.91.52 AU
A/2019 C16.619.47.58 AU6.87 AU4 May 202018.96.58 AU17 Mar 202018.75.70 AU
C/2019 B3 (PANSTARRS)5.518.87.85 AU7.72 AU19 Jan 202118.16.83 AU3 May 202018.06.52 AU
P/2019 B2 (Groeller)14.520.02.91 AU2.43 AU8 Jun 201919.72.42 AU20 Feb 201918.81.57 AU
C/2019 B1 (Africano)16.021.12.86 AU2.24 AU19 Mar 201918.21.60 AU11 Feb 201917.40.92 AU
C/2019 A9 (PANSTARRS)15.018.32.21 AU1.43 AU26 Jul 201918.21.43 AU4 Sep 201918.31.92 AU
P/2019 A8 (PANSTARRS)16.022.52.31 AU2.94 AU26 Aug 201821.01.85 AU6 May 201921.31.65 AU
P/2019 A7 (PANSTARRS)13.521.84.15 AU3.32 AU7 Jan 201819.72.68 AU14 Oct 201719.11.77 AU
P/2019 A6 (Lemmon-PANSTARRS)16.024.44.03 AU3.44 AU29 Aug 201820.81.94 AU9 Jan 201920.51.49 AU
C/2019 A5 (PANSTARRS)9.521.87.21 AU6.33 AU9 Jun 201921.76.32 AU14 Feb 201921.25.40 AU
P/2019 A4 (PANSTARRS)15.021.53.26 AU2.48 AU4 Dec 201819.82.38 AU13 Jan 201919.51.40 AU
P/2019 A3 (PANSTARRS)9.023.63.87 AU2.95 AU1 Aug 201820.92.31 AU9 Oct 201820.41.35 AU
P/2019 A2 (ATLAS)10.519.64.70 AU3.78 AU21 Nov 201818.33.54 AU13 Jan 201918.02.58 AU
P/2019 A1 (PANSTARRS)16.023.83.67 AU3.18 AU11 Oct 201821.32.21 AU3 Feb 201920.71.46 AU

For possible comets still needing confirmation, see http://www.minorplanetcenter.net/iau/NEO/pccp_tabular.html



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





    Terminology:
            
    delta:      Distance between comet and earth in AU
    radius:     Distance between comet and sun in AU
    magn:       Magnitude (brightness) estimate    
    elong:      Elongation in degrees (angle sun-earth-comet)    
    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
    Hₒ:         Absolute magnitude (magnitude from a distance of 1 AU) 
    

Orbital elements provided by MPC (Minor Planet Center)
Observations contributed by observers worldwide, via COBS (Comet Observation Database).
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.