Welcome to the Boneyard.   On this page you will find entries for objects that have been confirmed as Cataclysmic variables, asteriods (otherwise known as Vermin of the sky), or some other non extragalactic event.   Why keep them around? Because you never know when something like this will come back to life...

23 supernovae GAIA page discovered by Gaia Photometric Science Alerts programme
• AT2021agr (= Gaia21ago) discovered 2021/01/12.493 at R.A. = 21h16m56s.325, Decl. = -64°52'18".79 Mag 18.3:1/12, Type CV (References: TNS, Gaia observations)
• AT2021agp (= Gaia21agf) discovered 2021/01/13.697 at R.A. = 12h33m06s.342, Decl. = -33°46'23".99 Mag 18.5:1/13, Type CV (References: TNS, Gaia observations)
• AT2021ago (= Gaia21age) discovered 2021/01/13.697 at R.A. = 12h33m05s.950, Decl. = -34°01'02".90 Mag 19.0:1/13, Type CV (References: TNS, Gaia observations)
• AT2021agm (= Gaia21aga) discovered 2021/01/13.191 at R.A. = 12h29m07s.763, Decl. = -24°46'45".26 Mag 18.9:1/13, Type CV (References: TNS, Gaia observations)
• AT2021agl (= Gaia21afz) discovered 2021/01/12.692 at R.A. = 07h21m09s.838, Decl. = +71°43'14".53 Mag 18.4:1/12, Type CV (References: TNS, Gaia observations)
• AT2021agk (= Gaia21afy) discovered 2021/01/12.686 at R.A. = 12h28m23s.523, Decl. = -17°58'44".08 Mag 18.7:1/12, Type CV (References: TNS, Gaia observations)
• AT2021agj (= Gaia21afx) discovered 2021/01/13.105 at R.A. = 23h36m32s.109, Decl. = -18°25'36".08 Mag 17.2:1/13, Type CV (References: TNS, Gaia observations)
• AT2021agi (= Gaia21afw) discovered 2021/01/13.184 at R.A. = 12h15m35s.287, Decl. = -14°16'50".34 Mag 18.8:1/13, Type CV (References: TNS, Gaia observations)
• AT2021agh (= Gaia21afv) discovered 2021/01/12.983 at R.A. = 11h30m48s.223, Decl. = +23°39'16".09 Mag 18.5:1/12, Type CV (References: TNS, Gaia observations)
• AT2021agg (= Gaia21aft) discovered 2021/01/13.065 at R.A. = 00h31m52s.394, Decl. = +24°28'38".67 Mag 18.1:1/13, Type QSO (References: TNS, Gaia observations)

1 supernovae TNS discovered by MASTER
• AT2021adr (= MASTER OT J065559.44-502253.6) discovered 2021/01/13.167 at R.A. = 06h55m59s.440, Decl. = -50°22'53".60 Mag 18.5:1/13, Type CV (Discovery image) (References: ATEL 14321, TNS)

30 supernovae GAIA page discovered by Gaia Photometric Science Alerts programme
• AT2021adq (= Gaia21afr) discovered 2021/01/12.096 at R.A. = 02h41m47s.724, Decl. = +60°11'09".14 Mag 15.7:1/12, Type CV (References: TNS, Gaia observations)
• AT2021ado (= Gaia21afn) discovered 2021/01/10.227 at R.A. = 17h39m07s.442, Decl. = -67°23'41".52 Mag 17.2:1/10, Type CV (References: TNS, Gaia observations)
• AT2021adn (= Gaia21afm) discovered 2021/01/10.966 at R.A. = 15h15m18s.553, Decl. = -59°23'11".72 Mag 18.8:1/10, Type CV (References: TNS, Gaia observations)
• AT2021adm (= Gaia21afl) discovered 2021/01/10.709 at R.A. = 14h30m35s.997, Decl. = -50°08'17".89 Mag 15.0:1/10, Type YSO (References: TNS, Gaia observations)
• AT2021adl (= Gaia21afk) discovered 2021/01/10.963 at R.A. = 14h51m19s.691, Decl. = -56°05'17".70 Mag 17.5:1/10, Type CV (References: TNS, Gaia observations)
• AT2021adk (= Gaia21afj) discovered 2021/01/11.211 at R.A. = 14h27m36s.446, Decl. = -52°30'23".22 Mag 17.2:1/11, Type CV (References: TNS, Gaia observations)
• AT2021adj (= Gaia21afi) discovered 2021/01/11.704 at R.A. = 13h43m37s.115, Decl. = -44°26'41".42 Mag 13.9:1/11, Type CV (References: TNS, Gaia observations)
• AT2021adi (= Gaia21afh) discovered 2021/01/10.976 at R.A. = 17h02m16s.141, Decl. = -67°33'38".30 Mag 17.8:1/10, Type CV (References: TNS, Gaia observations)
• AT2021adg (= Gaia21aff) discovered 2021/01/11.722 at R.A. = 15h51m52s.849, Decl. = -66°00'03".16 Mag 17.9:1/11, Type CV (References: TNS, Gaia observations)
• AT2021acz (= Gaia21aep) discovered 2021/01/10.968 at R.A. = 11h07m48s.069, Decl. = +43°24'57".92 Mag 18.8:1/10, Type QSO (References: TNS, Gaia observations)

30 supernovae TNS discovered by Zwicky Transient Facility (ZTF)
• AT2021ace (= ZTF21aaarmhs) discovered 2021/01/04.170 at R.A. = 02h53m33s.672, Decl. = -20°47'55".10 Mag 17.2:1/4, Type CV (References: TNS, ZTF observations)

22 supernovae GAIA page discovered by Gaia Photometric Science Alerts programme
• AT2021abb (= Gaia21aei) discovered 2021/01/10.178 at R.A. = 12h56m11s.169, Decl. = -05°47'21".52 Mag 13.7:1/10, Type QSO (References: TNS, Gaia observations)
• AT2021aas (= Gaia21ady) discovered 2021/01/10.675 at R.A. = 12h39m59s.795, Decl. = -01°10'44".98 Mag 18.0:1/10, Type QSO (References: TNS, Gaia observations)
• AT2021aar (= Gaia21adx) discovered 2021/01/10.643 at R.A. = 11h06m31s.886, Decl. = +44°19'39".40 Mag 18.8:1/10, Type QSO (References: TNS, Gaia observations)
• AT2021aaq (= Gaia21adw) discovered 2021/01/09.383 at R.A. = 10h27m41s.912, Decl. = +55°52'10".66 Mag 18.3:1/9, Type QSO (References: TNS, Gaia observations)
• AT2021aap (= Gaia21adv) discovered 2021/01/10.268 at R.A. = 23h37m28s.380, Decl. = -35°57'51".95 Mag 18.7:1/10, Type CV (References: TNS, Gaia observations)
• AT2021aao (= Gaia21adu) discovered 2021/01/10.099 at R.A. = 23h59m25s.070, Decl. = -27°05'18".24 Mag 18.4:1/10, Type CV (References: TNS, Gaia observations)
• AT2021aan (= Gaia21adt) discovered 2021/01/10.250 at R.A. = 22h18m35s.469, Decl. = -55°46'13".62 Mag 18.6:1/10, Type CV (References: TNS, Gaia observations)
• AT2021aam (= Gaia21ads) discovered 2021/01/10.322 at R.A. = 22h04m06s.870, Decl. = -57°37'46".81 Mag 18.0:1/10, Type CV (References: TNS, Gaia observations)

2 supernovae TNS discovered by Xingming Observatory Sky Survey (XOSS)
• AT2021aah (= XM36HT) discovered 2021/01/12.009 at R.A. = 15h00m40s.860, Decl. = -05°52'57".50 Mag 17.2:1/12, Type CV? (References: TNS)
• AT2021aag (= XM35HT) discovered 2021/01/11.679 at R.A. = 03h21m00s.260, Decl. = +18°54'16".80 Mag 16.6:1/11, Type CV (References: TNS)

1 supernovae GAIA page discovered by Gaia Photometric Science Alerts programme
• AT2021aaf (= Gaia21adr) discovered 2021/01/09.203 at R.A. = 14h30m38s.006, Decl. = -40°57'59".51 Mag 16.4:1/9, Type CV (References: TNS, Gaia observations)

19 supernovae TNS discovered by Zwicky Transient Facility (ZTF)
• AT2021aad (= ZTF21aactywz) (= Gaia21afp) discovered 2021/01/09.467 at R.A. = 12h31m46s.918, Decl. = -10°53'58".78 Mag 16.9:1/11 (16.5:1/9), Type CV (References: TNS, ZTF observations, Gaia observations)

3 supernovae TNS discovered by MASTER
• AT2021zf (= MASTER OT J051137.87-460536.3) discovered 2021/01/07.284 at R.A. = 05h11m37s.870, Decl. = -46°05'36".30 Mag 14.9:1/7, Type CV (References: TNS)

8 supernovae GAIA page discovered by Gaia Photometric Science Alerts programme
• AT2021yc (= Gaia21adq) discovered 2021/01/08.974 at R.A. = 17h12m33s.490, Decl. = -64°33'42".69 Mag 15.8:1/8, Type CV (References: TNS, Gaia observations)
• AT2021yb (= Gaia21adp) discovered 2021/01/08.571 at R.A. = 22h14m16s.192, Decl. = -59°10'09".33 Mag 18.3:1/8, Type CV (References: TNS, Gaia observations)

35 supernovae TNS discovered by Zwicky Transient Facility (ZTF)
• AT2021xm (= ZTF19aceviuo) discovered 2021/01/10.157 at R.A. = 04h04m25s.556, Decl. = +70°36'31".93 Mag 18.8:1/10, Type CV (References: AstroNote 2021-13, TNS, ZTF observations)

9 supernovae GAIA page discovered by Gaia Photometric Science Alerts programme
• AT2021tv (= Gaia21adi) discovered 2021/01/08.218 at R.A. = 16h17m33s.108, Decl. = -58°47'19".07 Mag 16.7:1/8, Type CV (References: TNS, Gaia observations)
• AT2021ts (= Gaia21ada) discovered 2021/01/07.442 at R.A. = 14h23m18s.501, Decl. = -25°30'13".47 Mag 19.0:1/7, Type QSO? (References: TNS, Gaia observations)

9 supernovae GAIA page discovered by Gaia Photometric Science Alerts programme
• AT2021rl (= Gaia21acz) discovered 2021/01/06.449 at R.A. = 09h58m47s.250, Decl. = +65°33'54".75 Mag 14.2:1/6, Type BL Lac (References: TNS, Gaia observations)
• AT2021rk (= Gaia21acx) discovered 2021/01/06.618 at R.A. = 08h23m11s.123, Decl. = +68°44'12".24 Mag 18.0:1/6, Type Flare (References: TNS, Gaia observations)
• AT2021ri (= Gaia21acs) discovered 2021/01/06.773 at R.A. = 00h48m45s.516, Decl. = -33°33'55".33 Mag 18.8:1/6, Type CV (References: TNS, Gaia observations)

1 supernovae TNS discovered by Xingming Observatory Sky Survey (XOSS)
• AT2021rg (= XM33HT) discovered 2021/01/07.555 at R.A. = 22h23m04s.670, Decl. = +52°40'58".50 Mag 15.8:1/7, Type CV (References: TNS)

5 supernovae GAIA page discovered by Gaia Photometric Science Alerts programme
• AT2021nt (= Gaia21acq) discovered 2021/01/05.696 at R.A. = 14h58m21s.940, Decl. = -31°40'08".65 Mag 17.1:1/5, Type XRB (References: TNS, Gaia observations)
• AT2021nq (= Gaia21acn) discovered 2021/01/05.531 at R.A. = 01h31m39s.919, Decl. = -25°30'04".68 Mag 18.5:1/5, Type CV (References: TNS, Gaia observations)

23 supernovae PS1 SN page discovered by PS1 Science consortium
• AT2021js (= PS21ac) (= Gaia21adk) discovered 2021/01/02.277 at R.A. = 02h36m57s.414, Decl. = +41°26'37".03 Mag 16.4:1/8 (15.9:1/2), Type CV (References: ATEL 14312, TNS, Gaia observations)

5 supernovae GAIA page discovered by Gaia Photometric Science Alerts programme
• AT2021jq (= Gaia21acl) discovered 2021/01/04.960 at R.A. = 15h55m04s.066, Decl. = -51°11'02".12 Mag 18.7:1/4, Type Flare (References: TNS, Gaia observations)
• AT2021jp (= Gaia21ack) discovered 2021/01/04.426 at R.A. = 14h30m17s.218, Decl. = -02°40'34".46 Mag 18.0:1/4, Type CV (References: TNS, Gaia observations)
• AT2021jo (= Gaia21aci) discovered 2021/01/04.284 at R.A. = 15h59m35s.957, Decl. = -51°30'41".94 Mag 17.2:1/4, Type CV (References: TNS, Gaia observations)

2 supernovae TNS discovered by Xingming Observatory Sky Survey (XOSS)
• AT2021jn (= XM33HT) discovered 2021/01/04.660 at R.A. = 02h53m20s.930, Decl. = +27°13'35".70 Mag 17.1:1/4, Type CV (References: TNS)
• AT2021jk (= XM32HT) discovered 2021/01/05.828 at R.A. = 06h44m01s.090, Decl. = +21°38'47".20 Mag 17.0:1/5, Type CV (References: TNS)

70 supernovae TNS discovered by Zwicky Transient Facility (ZTF)
• AT2021jm (= ZTF21aaaiakl) discovered 2021/01/02.518 at R.A. = 12h02m56s.948, Decl. = -20°56'02".82 Mag 18.9:1/2, Type AGN (zhost=0.021792) (host anonymous galaxy) (References: TNS, ZTF observations)
• AT2021ia (= ZTF21aabgpub) discovered 2021/01/04.539 at R.A. = 11h34m40s.607, Decl. = -21°03'22".68 Mag 18.3:1/4, Type Quasar? (References: AstroNote 2021-12, TNS, ZTF observations)

1 supernovae TNS discovered by Xingming Observatory Sky Survey (XOSS)
• AT2021ge (= XM31HT) discovered 2021/01/04.757 at R.A. = 08h20m19s.370, Decl. = +47°47'31".00 Mag 17.5:1/4, Type CV (References: TNS)

10 supernovae GAIA page discovered by Gaia Photometric Science Alerts programme
• AT2021gc (= Gaia21ach) discovered 2021/01/03.284 at R.A. = 15h58m07s.768, Decl. = -53°22'43".36 Mag 17.1:1/3, Type CV (References: TNS, Gaia observations)
• AT2021gb (= Gaia21acg) discovered 2021/01/03.661 at R.A. = 14h17m30s.509, Decl. = +18°31'50".77 Mag 18.1:1/3, Type QSO (References: TNS, Gaia observations)

7 supernovae TNS discovered by ATLAS
• AT2021fw (= ATLAS21aap) discovered 2021/01/03.338 at R.A. = 04h20m26s.808, Decl. = -33°11'56".99 Mag 17.1:1/3, Type CV (References: TNS)

1 supernovae TNS discovered by MASTER
• AT2021dy (= MASTER OT J063437.96+412046.4) discovered 2021/01/03.869 at R.A. = 06h34m37s.960, Decl. = +41°20'46".40 Mag 16.2:1/3, Type CV (References: TNS)

2 supernovae TNS discovered by Xingming Observatory Sky Survey (XOSS)
• AT2021du (= XM30HT) discovered 2021/01/03.805 at R.A. = 05h53m57s.510, Decl. = +42°56'30".00 Mag 17.6:1/3, Type CV (References: TNS)
• AT2021dt (= XM29HT) discovered 2021/01/03.792 at R.A. = 05h24m30s.790, Decl. = +44°39'33".30 Mag 18.0:1/3, Type CV (References: TNS)

11 supernovae GAIA page discovered by Gaia Photometric Science Alerts programme
• AT2021ds (= Gaia21abx) discovered 2021/01/02.551 at R.A. = 18h00m51s.883, Decl. = -74°35'20".09 Mag 17.1:1/2, Type CV (References: TNS, Gaia observations)
• AT2021dr (= Gaia21abu) discovered 2021/01/01.961 at R.A. = 15h54m33s.651, Decl. = -55°18'31".28 Mag 19.5:1/1, Type CV (References: TNS, Gaia observations)
• AT2021dq (= Gaia21abt) discovered 2021/01/02.801 at R.A. = 02h45m54s.532, Decl. = -02°46'31".62 Mag 18.4:1/2, Type Flare (References: TNS, Gaia observations)
• AT2021dp (= Gaia21abs) discovered 2021/01/02.452 at R.A. = 15h36m41s.585, Decl. = -43°22'11".93 Mag 18.8:1/2, Type Flare (References: TNS, Gaia observations)

2 supernovae GAIA page discovered by Gaia Photometric Science Alerts programme
• AT2021bj (= Gaia21abl) discovered 2021/01/01.462 at R.A. = 15h52m47s.956, Decl. = -57°26'25".62 Mag 14.9:1/1, Type CV (References: TNS, Gaia observations)

6 supernovae GAIA page discovered by Gaia Photometric Science Alerts programme
• AT2021ba (= Gaia21abk) discovered 2021/01/01.594 at R.A. = 03h53m09s.576, Decl. = +56°54'30".92 Mag 18.8:1/1, Type BL Lac (References: TNS, Gaia observations)
• AT2021az (= Gaia21abi) discovered 2021/01/01.752 at R.A. = 01h39m33s.864, Decl. = -65°59'57".34 Mag 18.5:1/1, Type AGN? (host anonymous galaxy) (References: TNS, Gaia observations)
• AT2021ax (= Gaia21abf) discovered 2021/01/01.373 at R.A. = 03h00m01s.293, Decl. = -05°31'20".32 Mag 18.6:1/1, Type QSO (References: TNS, Gaia observations)

23 supernovae TNS discovered by Zwicky Transient Facility (ZTF)
• AT2021ai (= ZTF21aaaaqcd) discovered 2021/01/02.130 at R.A. = 01h48m45s.938, Decl. = -07°48'19".01 Mag 19.9:1/2, Type ulens (zhost=0.187000) (host anonymous galaxy) (References: AstroNote 2021-10, TNS, ZTF observations)

11 supernovae GAIA page discovered by Gaia Photometric Science Alerts programme
• AT2021W (= Gaia21abe) discovered 2021/01/01.089 at R.A. = 03h36m04s.140, Decl. = +49°24'32".98 Mag 16.1:1/1, Type CV (References: TNS, Gaia observations)

Vermin of the sky entomology:
• * - A star (not variable)
• AGN - Active galactic nucleus
• CV - Celestial Variable (variable star in this galaxy)
• Flare - Flare star - small Type M stars often flare
• galaxy - Spectrum was the sepectrum of a galaxy, not an SN
• HII - HII region (gas cloud) in a galaxy
• HP - Hot Pixel - Flaw on imager (I also catagorize other imager issues here)
• HPM - High Proper Motion (fast moving star)
• LPV - Long Period Variable
• MP - Minor Planet (asteroid)
• Nova - Galactic Nova
• NT - Nuclear Transient
• QSO - Quasi Stellar Object
• Quasar - confirmed QSO
• unconfirmed - It was discovered, but nobody could confirm the discovery
• YSO - Young Steller Object