2017 Supernova Boneyard

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...

MASTER OT J023819.81-521134.1, ATEL 10625 discovered 2017/08/07.136 by MASTER robotic Net
Found in ESO 198-G024 at R.A. = 02h38m19s.810, Decl. = -52°11'34".10
Located 0".0 east and 0".0 north of the center of ESO 198-G024 (Discovery image)
Mag 14.3:8/7, Type AGN (offset 2.3) (References: ATEL 10627)

AT2017fmr, TNS discovered 2017/07/15.047 by Paulo Cacella
Found in an anonymous galaxy at R.A. = 20h01m07s.660, Decl. = -44°18'33".33
Located 0".0 east and 0".0 north of the center of the host galaxy (Discovery image)
Mag 16.8:7/15, Type CV (References: ATEL 10582, OSC)

AT2017ejx, (= ASASSN-17he) ATEL 10463 discovered 2017/05/30.040 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in NGC 2993 at R.A. = 09h45m48s.610, Decl. = -14°22'05".74
Located 0".5 east and 0".3 north of the center of NGC 2993 (Discovery image) (Joseph Brimacombe image)
Mag 15.6:06/20, Type Galaxy (z=0.008) (zhost=0.008106) (References: ATEL 10517, TNS, OSC; SN 2003ao)

AT2017evd, TNS discovered 2017/06/18.056 by P. Cacella
Found in an anonymous galaxy at R.A. = 12h49m28s.140, Decl. = -58°48'25".70
Located 0".0 east and 0".0 north of the center of the host galaxy (Discovery image)
Mag 14.2:6/18, Type CV (References: OSC)

AT2017egh, (= SMT17kit) TNS discovered 2017/05/01.767 by SkyMapper at R.A. = 20h58m38s.100, Decl. = -43°16'38".35 Mag 19.8:5/1, Type flare (References: OSC)

AT2017egv, (= ASASSN-17gs) TNS discovered 2017/05/25.400 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 15h44m19s.720, Decl. = -06°49'13".87
Located 0".0 east and 0".0 north of the center of the host galaxy
Mag 17.6:06/02 (16.6:06/01), Type CV (light curve) (References: ATEL 10642, OSC)

AT2017djk, (= ASASSN-17fp) TNS discovered 2017/04/28.230 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 18h08m51s.110, Decl. = -73°04'04".22
Located 0".0 east and 0".0 north of the center of the host galaxy (Joseph Brimacombe image)
Mag 16.0:5/4 (15.6:4/30), Type CV (References: ATEL 10334, OSC)

AT2017dii, TNS discovered 2017/04/25.051 by P. Cacella
Found in an anonymous galaxy at R.A. = 13h13m57s.390, Decl. = -31°41'32".66
Located 0".0 east and 0".0 north of the center of the host galaxy (Discovery image) (Confirmation image)
Mag 16.6:4/25, Type CV (References: ATEL 10328, OSC)

AT2017cam, (= ASASSN-17di) ATEL 10153 discovered 2017/03/05.369 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 16h51m55s.730, Decl. = -16°21'04".03
Located 0".0 east and 0".0 north of the center of the host galaxy (Discovery image)
Mag 16.5:3/5, Type CV (References: ATEL 10337, TNS, OSC)

AT2017dbx, (= Gaia17azz) TNS discovered 2017/04/13.876 by Gaia Photometric Science Alerts programme
Found in an anonymous galaxy at R.A. = 07h03m32s.180, Decl. = -06°37'24".74
Located 0".0 east and 0".0 north of the center of the host galaxy (Enrico Prosperi image)
Mag 15.2:5/9 (14.3:4/27), Type YSO (References: VSnet observations, Gaia observations, OSC)

AT2017dac, TNS discovered 2017/04/14.826 by PMO-Tsinghua Supernova Survey (PTSS)
Found in an anonymous galaxy at R.A. = 18h58m11s.110, Decl. = +46°27'55".09
Located 0".0 east and 0".0 north of the center of the host galaxy (Enrico Prosperi image)
Mag 16.5:4/14, Type CV (References: ATEL 10285, OSC)

AT2017cxx, TNS discovered 2017/04/09.390 by R. Gagliano, E. Weinberg, R. Post, Jack Newton, and Tim Puckett
Found in PGC 44092 at R.A. = 12h55m59s.100, Decl. = +63°36'52".30
Located 0".0 east and 0".0 north of the center of PGC 44092 (Discovery image) (Enrico Prosperi image unconfirmed)
Mag 17.5:4/9, Type unconfirmed (zhost=0.016225) (References: OSC)

AT2017cnu, (= ATLAS17dhd) TNS discovered 2017/03/23.548 by ATLAS
Found in an anonymous galaxy at R.A. = 13h49m08s.150, Decl. = -30°14'49".00
Located 0".0 east and 0".0 north of the center of the host galaxy
Mag 18.3:3/23, Type unconfirmed (References: ATEL 10318, OSC)

AT2017cjz, (= ASASSN-17ec) TNS discovered 2017/03/24.480 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 14h14m30s.890, Decl. = +13°16'55".02
Located 0".0 east and 0".0 north of the center of the host galaxy
Mag 16.7:3/24, Type unconfirmed (References: OSC)

AT2017cih, TNS discovered 2017/03/19.126 by Doug Rich
Found in NGC 3780 at R.A. = 11h39m21s.390, Decl. = +56°16'33".60
Located 0".0 east and 0".0 north of the center of NGC 3780
Mag 17.7:3/19, Type HP (zhost=0.008002) (References: OSC; SN 1992bt, 1978H)

AT2017cbg, (= ASASSN-17dm) ATEL 10176 discovered 2017/03/09.300 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 10h06m57s.460, Decl. = -47°43'39".11
Located 6".7 west and 3".2 south of the center of the host galaxy (Discovery image) (Joseph Brimacombe image) (Roland Santallo image)
Mag 15.9:3/16, Type M-star (References: ATEL 10212, ATEL 10240, TNS, OSC)

AT2017bgt, (= ASASSN-17cv) ATEL 10113 discovered 2017/02/21.630 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 16h11m05s.520, Decl. = +02°34'02".14
Located 0".2 east and 0".1 south of the center of the host galaxy (Discovery image)
Mag 17.2:2/21, Type AGN (z=0.064) (References: TNS, OSC)

AT2017avi, (= Gaia17ajg) TNS discovered 2017/02/06.760 by Gaia Photometric Science Alerts programme
Found in an anonymous galaxy at R.A. = 17h57m50s.040, Decl. = -31°33'18".18
Located 0".0 east and 0".0 north of the center of the host galaxy
Mag 14.5:2/6, Type microlensing event? (References: Gaia observations, OSC)

AT2017ahk, TNS discovered 2017/02/04.833 by Peter Lloyd
Found in M74 at R.A. = 01h37m37s.000, Decl. = +15°52'00".00
Located 0".0 east and 0".0 north of the center of M74 (Josph Brimacombe image unconfirmed)
Mag 10.0:2/4, Type unconfirmed (References: OSC)

AT2017pv, (= ATLAS17anj) TNS discovered 2017/01/26.490 by ATLAS
Found in an anonymous galaxy at R.A. = 09h37m40s.250, Decl. = -28°59'47".64
Located 0".0 east and 0".0 north of the center of the host galaxy
Mag 16.7:1/26, Type CV (References: ATEL 10020, OSC)

AT2017pm, (= ATLAS17amw) TNS discovered 2017/01/26.423 by ATLAS
Found in an anonymous galaxy at R.A. = 07h48m39s.020, Decl. = -10°49'34".67
Located 0".0 east and 0".0 north of the center of the host galaxy
Mag 16.9:1/26, Type CV (References: ATEL 10020, OSC)



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