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
P/2023 B1 (PANSTARRS)5.517.05.28 AU6.14 AU26 May 202317.36.14 AU25 Feb 202317.05.19 AU
C/2023 A1 (Leonard)14.518.21.45 AU1.93 AU18 Mar 202317.71.83 AU2 Mar 202317.51.19 AU
C/2022 Y1 (Hogan) AU3.01 AU27 Nov 202219.52.96 AU9 Jan 202319.32.00 AU
C/2022 W3 (Leonard) AU2.40 AU22 Jun 202314.81.40 AU15 Aug 202313.80.76 AU
C/2022 W2 (ATLAS)11.518.72.82 AU3.14 AU8 Mar 202318.83.12 AU22 Jan 202318.72.81 AU
P/2022 W1 (Rankin)12.520.32.94 AU3.49 AU15 Sep 202220.23.37 AU29 Nov 202219.82.43 AU
P/2022 V1 (WISE-Lemmon) AU2.29 AU3 Mar 202319.02.28 AU21 Dec 202218.61.47 AU
P/2022 U5 (PANSTARRS) AU2.93 AU25 Jul 202221.02.69 AU8 Jan 202320.11.97 AU
C/2022 U4 (Bok)10.518.12.81 AU3.43 AU3 Aug 202317.62.90 AU24 Mar 202317.52.52 AU
C/2022 U3 (Bok)7.519.56.32 AU6.37 AU27 Jul 202418.14.83 AU12 Jan 202517.54.08 AU
C/2022 U2 (ATLAS) AU1.35 AU14 Jan 202311.01.33 AU29 Jan 202311.10.56 AU
C/2022 U1 (Leonard)8.519.45.22 AU5.43 AU25 Mar 202418.24.20 AU28 Oct 202317.83.68 AU
A/2022 T112.018.23.96 AU4.86 AU17 Feb 202417.23.44 AU24 Apr 202416.32.51 AU
C/2022 S5 (PANSTARRS) AU2.29 AU27 Nov 202220.12.18 AU5 Oct 202219.21.37 AU
C/2022 S4 (Lemmon) AU5.75 AU18 Jul 202414.62.77 AU28 Jul 202414.62.76 AU
C/2022 S3 (PANSTARRS) AU0.86 AU21 Jan 202316.70.84 AU9 Mar 202316.60.60 AU
P/2022 S1 (PANSTARRS) AU3.35 AU19 Aug 202220.43.15 AU20 Nov 202220.02.46 AU
C/2022 R6 (PANSTARRS) AU8.97 AU25 Aug 202517.56.57 AU3 Feb 202617.05.76 AU
P/2022 R5 (PANSTARRS) AU2.72 AU27 May 202222.32.47 AU27 Oct 202221.21.64 AU
P/2022 R4 (PANSTARRS)16.522.12.02 AU2.57 AU10 Jul 202221.11.96 AU11 Nov 202220.61.37 AU
C/2022 R3 (Leonard) AU5.14 AU5 Mar 202319.75.13 AU25 Nov 202219.44.43 AU
C/2022 R2 (ATLAS) AU1.90 AU25 Oct 202213.10.63 AU3 Oct 202213.71.02 AU
P/2022 R1 (PANSTARRS)11.520.84.66 AU3.92 AU11 Oct 202319.23.57 AU4 Nov 202319.12.59 AU
C/2022 QE78 (ATLAS) AU8.64 AU10 Sep 202516.45.48 AU28 Jan 202615.84.61 AU
C/2022 Q2 (ATLAS) AU1.64 AU31 Jan 202317.51.64 AU12 Oct 202217.71.22 AU
C/2022 P3 (ZTF) AU3.23 AU27 Jul 202218.52.56 AU30 Nov 202218.22.25 AU
P/2022 P2 (ZTF)12.517.91.71 AU2.66 AU11 Jul 202217.71.98 AU26 Jan 202317.91.71 AU
C/2022 P1 (NEOWISE) AU1.79 AU28 Nov 202210.51.60 AU25 Sep 202210.70.85 AU
P/2022 O2 (PANSTARRS) AU1.78 AU7 Jan 202319.91.76 AU31 Aug 202220.11.32 AU
C/2022 O1 (ATLAS) AU7.75 AU15 Feb 202219.27.43 AU4 Jul 202119.17.20 AU
C/2022 N2 (PANSTARRS) AU8.24 AU31 Jul 202514.83.83 AU9 Nov 202514.32.95 AU
C/2022 N1 (Attard-Maury)16.922.01.97 AU2.39 AU10 Sep 202219.61.48 AU23 Jul 202217.80.62 AU

For possible comets still needing confirmation, see

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

    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.