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.

2025/10/22
• Created entries for 8 ATLAS supernovae, 16 ZTF supernovae, 2 GOTO supernovae, 7 LAST supernovae
• Updated the entries for 2025abcu (Type Ia), 2025abdh (Type CV), 2025zpz (Type Ia)

2025/10/21
• Created entries for 19 ATLAS supernovae, 2025abep in M31, 3 LAST supernovae, 57 ZTF supernovae, 6 XOSS supernovae, 1 BlackGEM supernovae, 5 GOTO supernovae, 1 Fritz supernovae, 2 PS1 supernovae
• Updated the entries for 2025aadr (Type Ia), 2025aafh (Type Ia), 2025aamx (Type Ia), 2025aaoz (Type Ia), 2025aarn (Type II), 2025aaxf (Type AGN), 2025aazr (Type Ia), 2025uls (Type Ic), 2025zia (Type Ia), 2025zno (Type Ia), 2025znv (Type II), 2025zoy (Type Ia), 2025zrl (Type Ia), 2025zwn (Type II)

2025/10/20
• Created entries for 16 GOTO supernovae, 15 ATLAS supernovae, 7 LAST supernovae, 2 MASTER supernovae, 1 PS1 supernovae, 33 ZTF supernovae, 1 BlackGEM supernovae
• Updated the entries for 2025aanv (Type Ia), 2025aaqq (Type Ia), 2025taj (Type II), 2025yyl (Type II), 2025zmx (Type Ic), 2025zon (Type Ia), 2025zqc (Type Ia), 2025zqv (Type Ia), 2025zwk (Type Ia)
• Added images of 2025rbs, 2025yao, 2025yhm, 2025ziv, 2025zjx, 2025zox

2025/10/19
• Created entries for 7 GOTO supernovae, 1 LAST supernovae, 7 ZTF supernovae, 6 PS1 supernovae, 1 ATLAS supernovae, 1 BlackGEM supernovae 4 ATLAS supernovae, 3 XOSS supernovae, 5 GOTO supernovae, 1 Ziyang Mai supernovae, 11 ZTF supernovae, 1 BlackGEM supernovae, 6 PS1 supernovae, 5 LAST supernovae
• Updated the entries for 2025aafd (Type Ia), 2025aano (Type Ia), 2025aauj (Type Ia), 2025aaan (Type Ia), 2025aaeu (Type CV), 2025aapn (Type Ia), 2025zth (Type IIb), 2025zwm (Type Ia), 2025zzw (Type Ia)
• Added images of 2025aami, 2025aapj, 2025aaqi (Mag 16.8), 2025pht (Mag 16.7), 2025vzq, 2025xxq, 2025xzc (Mag 15.1), 2025ytg (Mag 16.5), 2025zox (Mag 15.7)

2025/10/18
• Created entries for 2 ATLAS supernovae, 2 XOSS supernovae, 2 GOTO supernovae, 15 ZTF supernovae, 13 PS1 supernovae 36 ZTF supernovae, 3 PS1 supernovae, 7 LAST supernovae, 1 MASTER supernovae
• Updated the entries for 2025aara (Type Ia)
• Fat fingered an entry yesterday that caused the "active supernova" column not to show up.

2025/10/17
• Created entries for 6 PS1 supernovae, 16 GW-MMADS supernovae, 3 LAST supernovae, 9 ZTF supernovae, 2 GOTO supernovae, 1 XOSS supernovae, 1 ATLAS supernovae 3 GOTO supernovae, 23 ATLAS supernovae, 4 XOSS supernovae, 33 ZTF supernovae, 11 PS1 supernovae, 2 LAST supernovae, 2025aapj (Mag 17.5 nova in M31) Nova M31 2025-10a? (= TCP J00384865+4046079 Mag 17.8 in M31)
• Updated the entries for 2025yrf (Type Ia), 2025yxd (Type Ia), 2025znd (Type Ia), 2025zpg (Type IIP), 2025zqi (Type Ia), 2025zqz (Type Ia), 2025zrr (Type Ia), 2025aami (Type Ia), 2025aapj (Type Nova in M31)

2025/10/16
• Created entries for 2 XOSS supernovae, 5 PS1 supernovae, 5 LAST supernovae, 1 GEOTS supernovae, 22 GOTO supernovae, 31 ATLAS supernovae
• Updated the entries for 2025aada (Type SN), 2025wyu (Type Ic), 2025yaa (Type Ia), 2025yak (Type Ia), 2025yer (Type II), 2025yew (Type Ia), 2025yfo (Type II), 2025ylf (Type Ia), 2025yxe (Type Ia)

2025/10/14
• Created entries for 2 MASTER supernovae, 5 LAST supernovae, 2 ATLAS supernovae, 68 WFST supernovae, 5 GOTO supernovae, 37 PS1 supernovae
• Updated the entries for 2025aahc (Type Afterglow), 2025xqv (Type Ic), 2025xzc (Type Ic), 2025yyf (Type Ia), 2025yyp (Type II), 2025zif (Type II), 2025zri (Type Ia), 2025zsx (Type CV)
• Added images of 2025pht (Mag 15.7), 2025rbs, 2025tam (Mag 16.4), 2025uue, 2025vzq, 2025wwk, 2025xrc, 2025xxq, 2025yao, 2025ydd (Mag 15.8), 2025yhm (Mag 15.8), 2025ymz, 2025ytg, 2025zok (Mag 13.7), 2025zox, 2025zry

2025/10/13
• Created entries for 5 LAST supernovae, 36 ZTF supernovae, 1 MASTER supernovae, 21 GOTO supernovae, 1 BlackGEM supernovae, 1 XOSS supernovae
• Updated the entries for 2025yjj (Type SLSN-I), 2025ywq (Type Ia), 2025znj (Type Ia), 2025zpi (Type II), 2025zpv (Type CV), 2025zth (Type SN), 2025zto (Type Ia)

2025/10/12
• Created entries for 8 LAST supernovae, 37 ZTF supernovae, 1 MASTER supernovae, 2 XOSS supernovae, 36 PS1 supernovae 2 PS1 supernovae, 1 GOTO supernovae, 20 WFST supernovae, 11 ZTF supernovae
• Updated the entries for 2025rwy (Type II), 2025ymx (Type Ia), 2025yom (Type Ia), 2025ziy (Type Ia-91bg), 2025zji (Type Ia), 2025zmn (Type II), 2025zqm (Type Ia), 2025zry (Type Ia), 2025ztm (Type Ia-91T), 2025ztn (Type IIb)

2025/10/11
• Created entries for 24 ZTF supernovae, 141 PS1 supernovae, 2 LAST supernovae, 1 GOTO supernovae, 3 ATLAS supernovae 3 ZTF supernovae, 7 GOTO supernovae, 3 ATLAS supernovae
• Updated the entries for 2025yhj (Type II), 2025yrt (Type II)

2025/10/10
• Created entries for 12 GOTO supernovae, 1 PS1 supernovae, 3 LAST supernovae, 4 ZTF supernovae, 2 ATLAS supernovae, 1 XOSS supernovae
• Updated the entries for 2025ygp (Type Ia), 2025zjk (Type Ia), 2025zsj (Type CV)

2025/10/09
• Created entries for 3 ATLAS supernovae, 2 GOTO supernovae, 3 PS1 supernovae, 10 ZTF supernovae
• Updated the entries for 2025yvr (Type Ia), 2025zjr (Type Ia), 2025zrj (Type CV)

2025/10/08
• Created entries for 2 GOTO supernovae, 3 ATLAS supernovae, 1 XOSS supernovae, 15 ZTF supernovae
• Updated the entries for 2025vni (Type II), 2025wzh (Type IIP), 2025yej (Type Ia), 2025yma (Type IIP), 2025ymu (Type Ia), 2025ywa (Type Ia-91T), 2025zpl (Type Ia), 2025zrj (Type CV)

2025/10/07
• Created entries for 7 ZTF supernovae, 2 ATLAS supernovae, 1 PS1 supernovae, 1 GOTO supernovae
• Updated the entries for 2025yns (Type Ia), 2025yvx (Type Ia), 2025ywi (Type Ia), 2025yxr (Type Ia), 2025znk (Type Ia), 2025zpw (Type Ia)

2025/10/06
• Created entries for 20 ZTF supernovae, 3 ATLAS supernovae, 1 GEOTS supernovae, 1 WFST supernovae
• Updated the entries for 2025xgz (Type Ia), 2025yiu (Type Ia), 2025ymy (Type II), 2025you (Type Ia), 2025yxt (Type II), 2025yyj (Type Ia), 2025zgu (Type Ia), 2025zox (Type Ia)

2025/10/05
• Created entries for 5 GOTO supernovae, 3 PS1 supernovae, 1 MASTER supernovae, 8 ZTF supernovae, 1 ATLAS supernovae, 1 ASAS-SN supernovae, 1 XOSS supernovae
• Updated the entries for 2025ydd (Type Ia), 2025yqk (Type Ia), 2025yvg (Type Ia), 2025ziv (Type II)
• Added images of 2025pht, 2025plf (Mag 16.7), 2025rbs, 2025uue, 2025vzq, 2025wfz (Mag 20.3), 2025wug (Mag 17.4), 2025wwk, 2025wxl, 2025yao, 2025ydd, 2025yhk, 2025ytg, 2025yth, 2025zjx, 2025zkf
• Create a 2025vzq images sub-page

2025/10/04
• Created entries for 2 WFST supernovae, 3 MASTER supernovae, 8 GOTO supernovae, 16 ZTF supernovae, 7 PS1 supernovae, 2 ATLAS supernovae
• Updated the entries for 2025ytn (Type Ia), 2025ytq (Type II)

2025/10/03
• Created entries for 5 GOTO supernovae, 1 WFST supernovae, 14 ZTF supernovae, 2 LAST supernovae
• Updated the entries for 2025vfa (Type Ia), 2025xac (Type Ia), 2025xte (Type Ia), 2025zjr (Type Ia)

2025/10/02
• Created entries for 1 MASTER supernovae, 10 ZTF supernovae, 1 GOTO supernovae, 6 PS1 supernovae, 2 ATLAS supernovae 11 ATLAS supernovae, 3 XOSS supernovae, 16 ZTF supernovae, 4 WFST supernovae, 3 GOTO supernovae, 1 MASTER supernovae, Nova M33 2025-10a? (= PNV J01350197+3043202 Mag 18.4 in M33)
• Updated the entries for 2025xdt (Type Ia), 2025yst (Type Ia), 2025zjx (Type II), 2025qoz (Type II), 2025uod (Type Ia), 2025vkk (Type IIb), 2025yap (Type II), 2025yfq (Type II), 2025ytj (Type Ia), 2025yyn (Type IIb)

2025/10/01
• Created entries for 1 MASTER supernovae, 1 PS1 supernovae, 16 GOTO supernovae, 65 ZTF supernovae, 9 ATLAS supernovae, 3 WFST supernovae, 7 LAST supernovae
• Updated the entries for 2024aefa (Type IIn), 2025xmp (Type Ia), 2025yhj (Type SN), 2025ytg (Type Ia), 2025yth (Type Ia), 2025ytl (Type Ia-91T)

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