Occasionally I make a mistake. Please see the Errata section for a list of these. If you find one, or a broken link, please e-mail me and I will fix it. I maintain these pages with an ASCII editor (no web publishing tools involved at ALL) and I occasionally make a typo which escapes my QC checks.

2025/02/28
• Created entries for 69 ZTF supernovae, 6 LAST supernovae, 17 GOTO supernovae, 5 PS1 supernovae, 13 ATLAS supernovae, 2 Fritz supernovae, 1 MASTER supernovae
• Updated the entries for 2025akj (Type Ia), 2025ash (Type Ia), 2025bod (Type Ia), 2025bve (Type Ia), 2025bvg (Type Ia), 2025bxy (Type Ia), 2025bzk (Type Ia), 2025bzt (Type Ia), 2025cbv (Type Ia), 2025cdv (Type Ia), 2025ceq (Type Ia), 2025chh (Type Ia), 2025chm (Type TDE), 2025cmg (Type Ia), 2025cnf (Type Ia), 2025cpj (Type Ia)

2025/02/27
• Created entries for 10 LAST supernovae, 8 ATLAS supernovae, 1 XOSS supernovae, 13 ZTF supernovae, 1 PS1 supernovae
• Updated the entries for 2024abjl (Type IIn), 2025bec (Type Ia), 2025btv (Type Ia), 2025buw (Type Ia), 2025cdx (Type II), 2025ced (Type II), 2025cff (Type Ia), 2025cfs (Type Ia), 2025cih (Type Ia), 2025cuf (Type Ia), 2025cwe (Type CV)

2025/02/26
• Created entries for 10 ATLAS supernovae, 1 MASTER supernovae, 36 ZTF supernovae, 8 PS1 supernovae
• Updated the entries for 2025apb (Type Ia), 2025asn (Type Ia), 2025awg (Type Ia), 2025bvd (Type Ia), 2025bvm (Type Ia), 2025bvs (Type Ia), 2025bwd (Type Ia), 2025cae (Type Ia), 2025ckx (Type Ia), 2025cnl (Type Ia), 2025coe (Type II), 2025cra (Type Ia)

2025/02/25
• Created entries for 2 XOSS supernovae, 13 GOTO supernovae, 37 ZTF supernovae, 12 ATLAS supernovae, 10 GW-MMADS supernovae, 3 LAST supernovae, 2 BlackGEM supernovae
• Updated the entries for 2025atg (Type Ia), 2025bpq (Type IIn), 2025bqy (Type Ia), 2025btt (Type Ia), 2025bvc (Type Ia), 2025bxe (Type II), 2025bxf (Type Ia), 2025byq (Type Ia), 2025bzj (Type Ia), 2025cac (Type Ia), 2025cay (Type Ia), 2025cly (Type CV)

2025/02/24
• Created entries for 16 GW-MMADS supernovae, 64 ZTF supernovae, 1 SGLF supernovae, 9 XOSS supernovae, 5 DESGW supernovae, 12 ATLAS supernovae, 1 LAST supernovae, 9 GOTO supernovae, 1 Koichi Itagaki supernovae, 1 MASTER supernovae
• Updated the entries for 2025aox (Type Ia-SC), 2025arz (Type Ia), 2025axg (Type Ia), 2025bpv (Type Ia), 2025bux (Type Ia), 2025cbq (Type Ia-pec), 2025qq (Type II), 2025tt (Type Ic-BL), 2025yp (Type II)

2025/02/23
• Created entries for 22 ZTF supernovae, 3 BlackGEM supernovae, 6 ATLAS supernovae, 6 PS1 supernovae
• Updated the entries for 2025aab (Type Ia), 2025bsi (Type II), 2025btb (Type II), 2025bxx (Type Ia), 2025cjw (Type Ia)

2025/02/22
• Created entries for 64 PS1 supernovae, 2 ZTF supernovae 5 ATLAS supernovae, 5 XOSS supernovae, 10 PS1 supernovae, 9 GOTO supernovae, 5 ZTF supernovae 11 GOTO supernovae, 30 ZTF supernovae, 3 ATLAS supernovae, 4 BlackGEM supernovae
• Updated the entries for 2025bdy (Type Ib), 2025ble (Type Ia), 2025bvm (Type Ia), 2024abqr (Type II), 2025ail (Type II), 2025akw (Type Ia), 2025bri (Type TDE-He)

2025/02/21
• Created entries for 1 GOTO supernovae, 3 PS1 supernovae, 5 ATLAS supernovae, 43 ZTF supernovae, 2 Fritz supernovae 2 ATLAS supernovae, 1 GOTO supernovae, 2 BlackGEM supernovae
• Updated the entries for 2025aef (Type Ia), 2025bdb (Type Ia), 2025cct (Type Ia), 2025ccu (Type Ia), 2025cdb (Type Ia), 2025cfa (Type Nova), 2024adyh (Type Ia), 2025byq (Type Ia), 2025cdz (Type Ia), 2025cek (Type II), 2025cem (Type IIP)
• Added images of 2024abfl (Mag 16.9), 2024abrl, 2024aeee, 2025adj, 2025aov, 2025aue, 2025byf (unconfirmed), 2025byp, 2025gi, 2025mg, 2025nr, 2025oq, 2025aab, 2025baq, 2025byr (Mag 17.5), 2025qe (Mag 17.2)
• Created a 2025oq images sub-page

2025/02/20
• Created entries for 1 XOSS supernovae, 82 ZTF supernovae, 3 GOTO supernovae, 15 ATLAS supernovae, 2 PS1 supernovae, 1 Yuan-Sheng Tsai supernovae

2025/02/19
• Created entries for 2 XOSS supernovae, 35 ZTF supernovae, 3 ATLAS supernovae, 17 GOTO supernovae, 4 LAST supernovae, 1 Fritz supernovae
• Updated the entries for 2024agkj (Type SLSN-I), 2025awa (Type Ia), 2025bei (Type II), 2025brs (Type Ia), 2025bwb (Type Ia), 2025bwp (Type II), 2025bxm (Type Ia), 2025bya (Type Ia), 2025byc (Type Ia), 2025byj (Type Ia), 2025byp (Type II), 2025oa (Type II)

2025/02/18
• Created entries for 2 XOSS supernovae, 6 ATLAS supernovae, 6 GOTO supernovae, 11 ZTF supernovae 1 BlackGEM supernovae, 19 ZTF supernovae, 7 GOTO supernovae, 14 ATLAS supernovae, 1 Fritz supernovae, 10 PS1 supernovae
• Updated the entries for 2025aal (Type Ia), 2025boc (Type II), 2025bol (Type Ia), 2025afq (Type II), 2025ann (Type II), 2025apn (Type Ic), 2025bcs (Type Ia), 2025bvu (Type Ib), 2025kt (Type Ia)

2025/02/17
• Created entries for 8 GOTO supernovae, 6 ATLAS supernovae, 8 ZTF supernovae, 1 Fritz supernovae, 17 PS1 supernovae
• Updated the entries for 2025awn (Type Ia)

2025/02/16
• Created entries for 10 PS1 supernovae, 12 GOTO supernovae, 2 ZTF supernovae, 17 GW-MMADS supernovae, 5 ATLAS supernovae 7 GOTO supernovae, 3 ATLAS supernovae, 7 ZTF supernovae, 1 XOSS supernovae
• Updated the entries for 2025aot (Type Ic), 2025bqo (Type II), 2025aqn (Type Ia), 2025bbw (Type Ia), 2025bdc (Type Ia), 2025bdp (Type Ia), 2025beu (Type Ia), 2025bqe (Type Ia), 2025bqz (Type Ia), 2025brg (Type II)
• Did some archiving

2025/02/15
• Created entries for 1 MASTER supernovae, 6 ZTF supernovae, 5 GOTO supernovae, 5 ATLAS supernovae, 18 PS1 supernovae 21 PS1 supernovae, 26 ZTF supernovae, 2 GOTO supernovae, 6 ATLAS supernovae
• Updated the entries for 2025ayl (Type Ia), 2025bof (Type Ia), 2025ane (Type II), 2025bdr (Type Ia-91T)
• Added images of 2000ch (Mag 19.0), 2024abfl (Mag 16.8), 2024abfo, 2024aeee (Mag 16.2), 2024gy (Mag 13.2), 2025adu, 2025aki, 2025aml, 2025ane, 2025ass, 2025aue (Mag 15.4), 2025auk, 2025baq (Mag 16.9), 2025ge (Mag 16.5), 2025oq (Mag 15.6)

2025/02/14
• Created entries for 2 MASTER supernovae, 2 ATLAS supernovae, 37 GW-MMADS supernovae, 1 Daniel Gruen supernovae, 185 WFST supernovae, 2 PS1 supernovae
• Updated the entries for 2025baq (Type Iax[02cx]), 2025bbz (Type Ia)

2025/02/12
• Created entries for 4 PS1 supernovae, 1 ZTF supernovae, 6 ATLAS supernovae
• Updated the entries for 2025al (Type SLSN-I)

2025/02/11
• Created entries for 7 PS1 supernovae, 1 James Freeburn supernovae, 3 ZTF supernovae, 3 ATLAS supernovae, 3 MASTER supernovae
• Updated the entries for 2025ais (Type Ia), 2025asl (Type Ia), 2025ayp (Type Ia), 2025ayu (Type Ia), 2025bdl (Type Ia)

2025/02/10
• Created entries for 1 GOTO supernovae, 20 ZTF supernovae, 6 ATLAS supernovae, 7 MASTER supernovae, 1 XOSS supernovae, 1 BlackGEM supernovae, 2 PS1 supernovae
• Updated the entries for 2025alk (Type II), 2025app (Type Ia), 2025auk (Type Ia), 2025ayo (Type Ia), 2025azf (Type Ia), 2025azh (Type Ia), 2025azi (Type Ia), 2025baq (Type Iax[02cx]), 2025bbe (Type Ia), 2025bbx (Type Ia), 2025bcn (Type IIb), 2025bco (Type II)

2025/02/09
• Created entries for 4 ATLAS supernovae, 3 PS1 supernovae, 2 ZTF supernovae
• Updated the entries for 2025atw (Type II), 2025awl (Type II)

2025/02/08
• Created entries for 3 ZTF supernovae, 12 PS1 supernovae, 4 ATLAS supernovae 10 PS1 supernovae, 9 ZTF supernovae, 3 ATLAS supernovae, 5 GOTO supernovae
• Updated the entries for 2024admt (Type TDE-He), 2024agqx (Type TDE-He), 2025ayy (Type II), 2025amm (Type Ia), 2025ats (Type II), 2025ayw (Type CV), 2025azl (Type IIb), 2025bag (Type Ia), 2025bah (Type Galaxy), 2025bar (Type Ia)

2025/02/07
• Created entries for 6 PS1 supernovae, 2 GOTO supernovae, 1 Andrew Drake supernovae 20 PS1 supernovae, 2 GOTO supernovae, 1 BlackGEM supernovae, 2 SAGUARO_Bot1 supernovae
• Updated the entries for 2020abxc (Type Ic-BL), 2024aeey (Type Ia), 2025abs (Type Ia), 2025afy (Type Ia), 2025aoz (Type Ia), 2025awf (Type Ia), 2025nk (Type Ia), 2024ablg (Type IIP), 2024aegq (Type SLSN-I), 2025aac (Type Ia), 2025aid (Type Ia-91T), 2025aiz (Type Ia), 2025aks (Type II), 2025akx (Type Ia), 2025alh (Type II), 2025anc (Type Ia), 2025aoz (again... Type Ia), 2025apg (Type II), 2025aph (Type II), 2025ard (Type Ia), 2025asr (Type Ia), 2025zy (Type Ia)

2025/02/06
• Created entries for 10 PS1 supernovae, 11 ATLAS supernovae, 1 ZTF supernovae, 1 GOTO supernovae, 1 XOSS supernovae
• Updated the entries for 2024abbx (Type IIn), 2025arb (Type Ia), 2025aue (Type Ia-91T)
• Added images of 2000ch (LBV in NGC 3432)

2025/02/05
• Created entries for 3 PS1 supernovae, 9 ATLAS supernovae, 1 GOTO supernovae, 2 BlackGEM supernovae, 4 XOSS supernovae, 1 Koichi Itagaki supernovae, 7 ZTF supernovae, 2 MASTER supernovae
• Updated the entries for 2025acn (Type Ia), 2025aet (Type Ia), 2025akf (Type Ia), 2025ali (Type II), 2025aov (Type Ia), 2025apl (Type Ia), 2025ask (Type Ia), 2025ass (Type Ia), 2025ata (Type Ia-91T), 2025atd (Type SN), 2025axv (Type Nova), 2025lw (Type Ia), 2025oq (Type Ic-BL)
• Added images of 2024abfl (Mag 16.9), 2024admc (Mag 17.5), 2024adwj, 2024aeee (Mag 16.2), 2025adj, 2025aml (Mag 17.5), 2025asm, 2025bl, 2025dr, 2025mb, 2025mg (Mag 17.5), 2025oq (Mag 15.0), 2025qe (Mag 15.6)

2025/02/04
• Created entries for 1 Andrea Reguitti supernovae, 31 ZTF supernovae, 16 ATLAS supernovae, 2 GOTO supernovae
• Updated the entries for 2024adfg (Type II), 2024afnq (Type II), 2024agfg (Type Ia-91T), 2024agkr (Type Ia), 2025aar (Type Ia), 2025aja (Type Ia), 2025aov (Type Ia), 2025arc (Type Ia), 2025ass (Type Ia), 2025axj (Type CV), 2025dw (Type Ia), 2025hr (Type Ia), 2025id (Type Ia)

2025/02/03
• Created entries for Nova M81 2025-02a? (= PNV J09550507+6909090 Mag 19.8 in M81), AT2025atx (= PNV J00430161+4119362 Mag 18.0 in M31) 43 ZTF supernovae, 3 SGLF supernovae, 51 ATLAS supernovae, 1 XOSS supernovae, 2 BlackGEM supernovae, 7 GOTO supernovae, 1 MASTER supernovae, 2 Andrew Drake supernovae
• Updated the entries for 2024agod (Type II), 2025ack (Type Ia), 2025ahu (Type Ia-91bg), 2025aio (Type Ia), 2025gk (Type Ia), 2025wu (Type Ia)
• Added images of 2022abvt (HST image)

2025/02/02
• Created entries for 7 ZTF supernovae, 2 BlackGEM supernovae
• Updated the entries for 2025ob (Type II)

2025/02/01
• Created entries for 2 XOSS supernovae, 20 ZTF supernovae, 6 BlackGEM supernovae 4 PS1 supernovae, 14 ATLAS supernovae, 7 ZTF supernovae, 1 XOSS supernovae, 1 BlackGEM supernovae
• Updated the entries for 2025dr (Type Ia), 2025afe (Type Ia-91T), 2025aiv (Type CV)
• Added images of 2022aafn (HST image) 2024abfl, 2024abup (Mag 16.6), 2024adjp (Mag 16.4), 2024admc, 2024advj (Mag 15.8), 2024aecx (Mag 15.5), 2024aedt (Mag 16.5), 2024aeee (Mag 15.5), 2024afpi (Mag 16.6), 2024afyu (Mag 15.0), 2024afzg, 2024xal (Mag 15.0), 2025ah (Mag 16.8), 2025ay, 2025dr, 2025gj (Mag 13.5), 2025kw (Mag 17.2), 2025mb, 2025oq (Mag 14.5), 2025qe

Errata
• 2025/01/23 - Had the host galaxy of 2025zi marked as NGC 3198 not NGC 1398.