Bright Supernovae - 2017

This data comes from IAU Circulars and occasionally more data will be provided on IAU's Astronomical Headlines page. An archive of the 2017 updates to this page is available.

This is a partial list of the SN discovered in 2017. Since 2017 is still ongoing, please look at the main page for the latest data.   In previous years I tried to keep the yearly archive alphabetically sorted by CBAT supernova name.   Since that is no longer applicable, I am sorting this archive by "first observed" date, which I have listed as the discovery date.   Note that Extra galactic Novae have been moved to a special Extra galactic novae page.   For more information, you can look at the following Supernova Catalogs:

  • IAU List of Supernovae since 1885
  • AT2017atv, (= ATLAS17ayw) (= Gaia17arv) TNS discovered 2017/02/14.231 by ATLAS
    Found in UGC 2710 at R.A. = 03h23m59s.470, Decl. = +37°45'30".65
    Located 0".0 east and 0".0 north of the center of UGC 2710 (Jaroslaw Grzegorzek image) (Enrico Prosperi image) (JM Llapasset image)
    Mag 17.9:3/15 (16.6:2/14), Type unknown (References: Gaia observations, OSC)

    AT2017aoy, TNS discovered 2017/02/12.519 by Tsinghua-NAOC Transient Survey (TNTS) at R.A. = 02h10m10s.510, Decl. = +42°09'46".40 Mag 18.2:2/12, Type unknown (References: OSC)

    AT2017ant, (= SMT17aan) TNS discovered 2017/01/21.522 by SkyMapper at R.A. = 05h37m49s.840, Decl. = -30°35'51".68 Mag 19.2:1/21, Type unknown (References: OSC)

    AT2017ans, (= ATLAS17ayj) TNS discovered 2017/02/05.649 by ATLAS at R.A. = 15h21m09s.510, Decl. = +27°55'20".63 Mag 18.2:2/5, Type unknown (References: OSC)

    AT2017amr, (= PS17avf) TNS discovered 2017/01/27.396 by PS1 Science consortium
    Found in UGC 3304 at R.A. = 05h25m29s.320, Decl. = +21°51'21".04
    Located 0".0 east and 0".0 north of the center of UGC 3304 (Discovery image) (Kunihiro Shima image unconfirmed)
    Mag 19.4:1/27, Type unknown (offset 1.1) (References: TNS, OSC; SN 2008T)

    2017acd, TNS discovered 2017/02/02.531 by Stu Parker (BOSS)
    Found in PGC 612475 at R.A. = 11h34m49s.100, Decl. = -38°08'37".50
    Located 14".2 east and 5".5 north of the center of PGC 612475 (Discovery image) (Joseph Brimacombe image)
    Mag 17.3:2/2, Type Ia (z=0.032042) (References: ATEL 10077, OSC)

    2017yi (= Gaia17ala), TNS discovered 2017/01/29.726 by J. Vales
    Found in an anonymous galaxy at R.A. = 02h59m27s.360, Decl. = +14°47'57".30
    Located 0".0 east and 0".0 north of the center of the host galaxy (Discovery image) (Enrico Prosperi image)
    Mag 17.5:2/15 (17.3:1/29), Type Ia (z=0.034) (References: ATEL 10039, Gaia observations, OSC)

    2017yh, (= ASASSN-17bs) (= Gaia17ahm) ATEL 10031 discovered 2017/01/30.650 by All Sky Automated Survey for SuperNovae (ASAS-SN)
    Found in IC 1269 at R.A. = 17h52m06s.250, Decl. = +21°33'58".32
    Located 1".8 east and 12".9 south of the center of IC 1269 (Discovery image)
    Mag 16.5:1/30, Type Ia (z=0.020) (zhost=0.020401) (References: ATEL 10041, TNS, Gaia observations, OSC)

    2017xy, (= ASASSN-17br) TNS discovered 2017/01/29.620 by All Sky Automated Survey for SuperNovae (ASAS-SN)
    Found in an anonymous galaxy at R.A. = 15h52m00s.350, Decl. = +66°18'53".17
    Located 0".9 east and 3".6 north of the center of the host galaxy (Discovery image)
    Mag 17.1:1/29 (16.7:1/4), Type IIP (z=0.026) (References: ATEL 10032, OSC)

    2017wi, (= ASASSN-17bp) ATEL 10023 discovered 2017/01/29.049 by All Sky Automated Survey for SuperNovae (ASAS-SN)
    Found in an anonymous galaxy at R.A. = 02h02m08s.630, Decl. = -17°59'56".40
    Located 3".0 west and 1".7 north of the center of the host galaxy (Discovery image)
    Mag 17.2:1/29, Type Ia (z=0.051) (References: ATEL 10047, TNS, OSC)

    2017vu, (= ASASSN-17bn) ATEL 10030 discovered 2017/01/21.420 by All Sky Automated Survey for SuperNovae (ASAS-SN)
    Found in an anonymous galaxy at R.A. = 08h59m23s.920, Decl. = -09°52'29".32
    Located 0".6 east and 0".1 north of the center of the host galaxy (Discovery image)
    Mag 17.2:1/31, Type Ia (z=0.045) (zhost=0.044507) (References: ATEL 10032, TNS, OSC)

    2017rt, (= PS17afa) TNS discovered 2017/01/10.606 by PS1 Science consortium
    Found in NGC 3836 at R.A. = 11h43m29s.260, Decl. = -16°47'37".27
    Located 0".0 east and 0".0 north of the center of NGC 3836 (Discovery image)
    Mag 17.5:1/10 (17.5:1/10), Type Ic (z=0.012) (offset 10.3) (zhost=0.012208) (References: TNS, ATEL 10020, OSC)

    AT2017qu, TNS discovered 2017/01/06.180 by Paolo Campaner (ISSP)
    Found in PGC 29080 at R.A. = 10h02m34s.700, Decl. = +44°47'11".20
    Located 0".0 east and 0".0 north of the center of PGC 29080 (Paolo Campaner image)
    Mag 17.8:1/6, Type unknown (zhost=0.026370) (References: OSC)

    2017po, (= ASASSN-17bh) (= Gaia17ait) (= CSS170130:160352+395924) ATEL 10013 discovered 2017/01/26.610 by All Sky Automated Survey for SuperNovae (ASAS-SN)
    Found in an anonymous galaxy at R.A. = 16h03m51s.710, Decl. = +39°59'25".40
    Located 13".7 east and 4".8 north of the center of the host galaxy (Discovery image) (CRTS image)
    Mag 16.6:2/5 (16.1:1/30), Type Ia (z=0.032) (zhost=0.031864) (References: ATEL 10032, TNS, Gaia observations, OSC)

    2017pl (= ATLAS17and) (= MLS170203:145931+463758) (= PS17bim) (= CSS170130:145931+463758), TNS discovered 2017/01/25.619 by ATLAS at R.A. = 14h59m30s.780, Decl. = +46°37'58".07 Mag 19.2:2/16 (18.8:2/3), Type Ia (z=0.097) (offset 14.7) (host anonymous galaxy) (MLS image) (PS1 image) (CRTS image) (References: ATEL 10041, OSC)

    AT2017pk, (= ATLAS17ana) (= Gaia17anu) TNS discovered 2017/01/26.246 by ATLAS
    Found in an anonymous galaxy at R.A. = 02h10m53s.380, Decl. = -22°31'10".19
    Located 0".0 east and 0".0 north of the center of the host galaxy
    Mag 17.9:2/12 (17.5:1/26), Type unknown (zhost=0.038083) (References: Gaia observations, OSC)

    AT2017pj, (= ATLAS17amu) TNS discovered 2017/01/21.458 by ATLAS at R.A. = 09h43m13s.580, Decl. = +41°19'02".15 Mag 18.2:1/21, Type unknown (References: OSC)

    AT2017pi, (= ATLAS17amv) (= PS17brr) TNS discovered 2017/01/08.605 by ATLAS at R.A. = 13h18m52s.890, Decl. = +31°35'48".24 Mag 20.3:3/6 (18.9:1/8), Type unknown (offset 3.5) (PS1 image) (References: OSC)

    Amos, ATEL 10005 discovered 2017/01/23.000 by HST at R.A. = 11h49m36s.500, Decl. = +22°23'18".28 Mag 23.7:1/23, Type unknown (z=0.54) (host MACSJ1149) (References: OSC)

    AT2017pa, (= ASASSN-17be) ATEL 10004 discovered 2017/01/17.070 by All Sky Automated Survey for SuperNovae (ASAS-SN)
    Found in an anonymous galaxy at R.A. = 02h03m10s.530, Decl. = -61°41'10".63
    Located 0".5 west and 0".1 south of the center of the host galaxy (Discovery image)
    Mag 17.5:1/17, Type Ia (z=0.04) (References: ATEL 10004, TNS, OSC)

    2017oz, (= ATLAS17amc) TNS discovered 2017/01/24.626 by ATLAS at R.A. = 14h06m41s.580, Decl. = +30°19'07".49 Mag 18.7:1/24, Type Ia (z=0.056) (References: ATEL 10032, OSC)

    AT2017oy, (= ATLAS17amb) (= PS17avv) TNS discovered 2017/01/20.667 by ATLAS at R.A. = 13h38m06s.130, Decl. = +15°51'56".31 Mag 19.7:2/9 (18.2:1/20), Type unknown (offset 1.8) (Ps1 image) (References: OSC)

    AT2017ox, (= ATLAS17ama) (= Gaia17amv) TNS discovered 2017/01/24.251 by ATLAS
    Found in an anonymous galaxy at R.A. = 01h27m49s.510, Decl. = +22°20'35".97
    Located 0".0 east and 0".0 north of the center of the host galaxy (Enrico Prosperi image)
    Mag 17.2:2/15, Type unknown (References: Gaia observations, OSC)

    AT2017ow, (= ATLAS17alr) (= PS17afs) TNS discovered 2017/01/24.455 by ATLAS
    Found in an anonymous galaxy at R.A. = 08h15m34s.780, Decl. = +29°41'09".12
    Located 0".0 east and 0".0 north of the center of the host galaxy (PS1 image) (Enrico Prosperi image)
    Mag 18.4:2/15 (17.5:1/24), Type unknown (offset 0.9) (References: OSC)

    2017nx, TNS discovered 2017/01/23.889 by S. Maticic
    Found in an anonymous galaxy at R.A. = 06h24m07s.000, Decl. = +36°19'60".00
    Located 0".0 east and 0".0 north of the center of the host galaxy (Discovery image) (Enrico Prosperi image) (Kunihiro Shima image)
    Mag > 19.4:2/19 (18.2:1/23), Type Ia (z=0.089) (References: ATEL 9996, OSC)

    2017nw, (= ATLAS17ali) (= PS17atr) TNS discovered 2017/01/23.605 by ATLAS
    Found in an anonymous galaxy at R.A. = 11h16m12s.610, Decl. = +02°48'29".13
    Located 0".0 east and 0".0 north of the center of the host galaxy (PS1 image)
    Mag 18.6:1/28 (18.3:1/23), Type Ia (z=0.077) (offset 2.0) (References: ATEL 10010, OSC)

    2017nt, (= ATLAS17akw) TNS discovered 2017/01/23.214 by ATLAS
    Found in an anonymous galaxy at R.A. = 23h53m31s.130, Decl. = +03°44'08".18
    Located 0".0 east and 0".0 north of the center of the host galaxy (Enrico Prosperi image)
    Mag 16.8:1/23, Type Ia-91T (z=0.0388) (References: ATEL 9996, OSC)

    2017ns, (= ATLAS17alb) (= PS17agl) (= Gaia17akz) TNS discovered 2017/01/23.314 by ATLAS
    Found in an anonymous galaxy at R.A. = 02h49m10s.360, Decl. = +14°36'02".48
    Located 0".0 east and 0".0 north of the center of the host galaxy (Masanori Mizutan image) (PS1 image) (Enrico Prosperi image) (Enrico Prosperi image)
    Mag > 19.0:2/19 (16.7:1/29), Type Ia (z=0.0279) (offset 3.2) (References: ATEL 9996, Gaia observations, OSC)

    AT2017nr, (= ATLAS17ale) TNS discovered 2017/01/23.442 by ATLAS
    Found in an anonymous galaxy at R.A. = 06h51m38s.240, Decl. = +03°19'08".63
    Located 0".0 east and 0".0 north of the center of the host galaxy (Masanori Mizutani image)
    Mag 18.4:1/23, Type unknown (References: OSC)

    2017nh, (= ASASSN-17bc) (= PS17afl) ATEL 9999 discovered 2017/01/20.39 by All Sky Automated Survey for SuperNovae (ASAS-SN)
    Found in an anonymous galaxy at R.A. = 07h10m13s.640, Decl. = +27°12'09".79
    Located 1".0 east and 6".1 north of the center of the host galaxy (Discovery image) (PS1 image) (Enrico Prosperi image)
    Mag 18.2:2/15 (17.6:1/23), Type Ia (z=0.06) (References: ATEL 9997, TNS, OSC)

    2017nk, (= ASASSN-17bd) ATEL 10000 discovered 2017/01/23.610 by All Sky Automated Survey for SuperNovae (ASAS-SN)
    Found in an anonymous galaxy at R.A. = 15h59m18s.480, Decl. = +13°36'51".26
    Located 2".4 west and 1".8 north of the center of the host galaxy (Discovery image)
    Mag 17.3:1/23, Type Ia (z=0.035) (zhost=0.034554) (References: TNS, ATEL 10014, OSC)

    2017ng, (= ASASSN-17bb) (= Gaia17ake) ATEL 9998 discovered 2017/01/23.640 by All Sky Automated Survey for SuperNovae (ASAS-SN)
    Found in an anonymous galaxy at R.A. = 15h20m40s.820, Decl. = +04°39'34".13
    Located 1".5 west and 1".1 north of the center of the host galaxy (Discovery image)
    Mag 16.9:1/23, Type Ia (z=0.037) (References: TNS, ATEL 10012, ATEL 10014, Gaia observations, OSC)

    AT2017mr, (= ATLAS17ajw) TNS discovered 2017/01/21.376 by ATLAS
    Found in an anonymous galaxy at R.A. = 06h00m07s.300, Decl. = +47°32'12".34
    Located 0".0 east and 0".0 north of the center of the host galaxy (Enrico Prosperi image Unconfirmed)
    Mag > 19.7:2/15 (17.2:1/21), Type unknown (References: OSC)

    AT2017mp, (= ATLAS17akb) TNS discovered 2017/01/13.387 by ATLAS
    Found in anonymous galaxy at R.A. = 05h36m42s.560, Decl. = +51°35'29".26
    Located 0".0 east and 0".0 north of the center of the host galaxy
    Mag 18.1:1/13, Type unknown (References: OSC)

    AT2017mg, TNS discovered 2017/01/20.855 by PMO-Tsinghua Supernova Survey (PTSS)
    Found in an anonymous galaxy at R.A. = 13h31m51s.690, Decl. = +28°54'03".65
    Located 0".0 east and 0".0 north of the center of the host galaxy
    Mag 19.2:1/20, Type unknown (References: OSC)

    2017mf (= Gaia17ano), TNS discovered 2017/01/21.088 by Fabio Briganti and Paolo Campaner (ISSP)
    Found in NGC 5541 at R.A. = 14h16m31s.000, Decl. = +39°35'12".02
    Located 0".0 east and 0".0 north of the center of NGC 5541 (Discovery image) (Giancarlo Bonatti image) (Carlos image) (Paolo Campaner image) (Paolo Campaner image) (Adriano Valvasori image) (Enrico Prosperi image)
    Mag 17.5:2/15 (16.0:1/25), Type Ia (z=0.0257) (zhost=0.025678) (References: ATEL 9987, Gaia observations, OSC; SN 2006cb)

    2017me, (= ATLAS17ajs) (= PS17bhg) TNS discovered 2017/01/20.588 by ATLAS
    Found in KUG 1125+276 at R.A. = 11h27m54s.520, Decl. = +27°20'44".79
    Located 0".0 east and 0".0 north of the center of the KUG 1125+276 (Enrico Prosperi image) (PS1 image) (Enrico Prosperi image)
    Mag 18.3:2/17 (17.7:1/20), Type Ia (z=0.033) (zhost=0.032668) (offset 10.3) (References: ATEL 10012, OSC)

    2017ln, (= ASASSN-17at) (= PS17bhi) ATEL 9989 discovered 2017/01/19.540 by All Sky Automated Survey for SuperNovae (ASAS-SN)
    Found in an anonymous galaxy at R.A. = 11h38m33s.780, Decl. = +25°23'46".86
    Located 0".7 west and 3".0 south of the center of the host galaxy (Discovery image) (Kunihiro Shima image) (PS1 image) (Enrico Prosperi image near bulge)
    Mag 17.5:2/17 (16.7:1/19), Type Ia (z=0.025) (zhost=0.025356) (References: ATEL 9980, TNS, OSC)

    2017lw (= DES16E1gfm), TNS discovered 2017/01/06.100 by Dark Energy Survey at R.A. = 00h33m51s.250, Decl. = -42°37'06".13 Mag 21.1:1/6, Type Ia (z=0.186) (Discovery image) (References: ATEL 9980, OSC)

    2017lm, (= ATLAS17aix) (= Gaia17akm) TNS discovered 2017/01/14.269 by ATLAS at R.A. = 03h01m32s.410, Decl. = -15°00'57".19 Mag 18.1:1/14, Type Ia (z=0.03052) (References: ATEL 9981, Gaia observations, OSC)

    2017le, (= ATLAS17agh) TNS discovered 2017/01/04.560 by ATLAS at R.A. = 11h10m27s.200, Decl. = +28°41'42".33 Mag 18.9:1/4, Type Ia (z=0.030) (References: ATEL 9972, OSC)

    MASTER OT J081506.13+381123.3, ATEL 9971 discovered 2017/01/16.017 by MASTER robotic Net
    Found in PGC 2120251 at R.A. = 08h15m06s.130, Decl. = +38°11'23".30
    Located 11".0 east and 2".8 north of the center of PGC 2120251 (Discovery image) (Joseph Brimacombe image) (Enrico Prosperi image)
    Mag 19.1:1/29 (16.9:1/16), Type Ia (z=0.054) (References: OSC)

    AT2017jk, (= kait-17D) TNS discovered 2017/01/15.588 by Lick Observatory Supernova Search
    Found in an anonymous galaxy at R.A. = 16h45m14s.740, Decl. = +70°48'26".60
    Located 0".0 east and 0".0 north of the center of the host galaxy (Discovery image)
    Mag 18.4:1/15, Type Ia (z=0.057) (References: OSC)

    2017je, (= ASASSN-17ap) ATEL 9965 discovered 2017/01/15.074 by All Sky Automated Survey for SuperNovae (ASAS-SN)
    Found in an anonymous galaxy at R.A. = 00h37m37s.500, Decl. = -34°29'50".20
    Located 5".3 east and 7".2 north of the center of the host galaxy (Discovery image) (Joseph Brimacombe image)
    Mag 18.0:1/21 (16.9:1/15), Type Ia (z=0.045) (References: TNS, ATEL 10014, OSC)

    2017jd, (= PS17hj) TNS discovered 2017/01/09.214 by PS1 Science consortium
    Found in IC 5334 at R.A. = 23h34m36s.470, Decl. = -04°32'04".32
    Located 0".0 east and 0".0 north of the center of IC 5334 (Discovery image) (Kunihiro Shima image) (Enrico Prosperi image)
    Mag 16.0:2/6 (14.6:1/9), Type Ia (offset 1.2) (z=0.007) (zhost=0.007368) (References: ATEL 9962, ATEL 9973, TNS, OSC)

    2017hr (= PS17btl), TNS discovered 2017/01/06.690 by Koichi Itagaki
    Found in an anonymous galaxy at R.A. = 12h06m27s.390, Decl. = +28°08'19".70
    Located 0".0 east and 0".0 north of the center of the host galaxy (Discovery image) (Wim Cuppens image) (Kunihiro Shima image) (PS1 image)
    Mag 19.6:3/6 (16.6:1/12), Type Ia (z=0.0293) (offset 2.0) (References: OSC)

    2017hq, (= ASASSN-17am) ATEL 9957 discovered 2017/01/10.660 by All Sky Automated Survey for SuperNovae (ASAS-SN)
    Found in CGCG 73-79 at R.A. = 13h49m24s.000, Decl. = +08°30'26".50
    Located 2".2 east and 0".2 north of the center of CGCG 73-79 (Discovery image)
    Mag 16.5:1/11, Type Ia (zhost=0.037980) (z=0.0379) (References: ATEL 9967, TNS, OSC)

    AT2017hp, (= ATLAS17agi) TNS discovered 2017/01/04.515 by ATLAS at R.A. = 08h32m00s.780, Decl. = +19°33'45".64 Mag 18.8:1/4, Type unknown (References: OSC)

    2017hm, (= ASASSN-17aj) (= PS17bhh) ATEL 9952 discovered 2017/01/09.619 by All Sky Automated Survey for SuperNovae (ASAS-SN)
    Found in MCG -2-30-3 at R.A. = 11h33m10s.580, Decl. = -10°13'18".41
    Located 1".0 west and 25".5 north of the center of MCG -2-30-3 (Discovery image) (PS1 image)
    Mag 16.9:2/17 (16.9:1/9), Type Ia (z=0.021) (zhost=0.021275) (References: ATEL 9968, TNS, OSC)

    2017hl, (= ASASSN-17ai) ATEL 9952 discovered 2017/01/09.630 by All Sky Automated Survey for SuperNovae (ASAS-SN)
    Found in KUG 1204+171 at R.A. = 12h07m18s.830, Decl. = +16°50'26".02
    Located 3".5 east and 3".2 south of the center of KUG 1204+171 (Discovery image)
    Mag 17.3:1/9, Type Ib (z=0.023) (zhost=0.023073) (References: ATEL 9968, TNS, OSC)

    2017hk, TNS discovered 2017/01/08.880 by Tsinghua-NAOC Transient Survey (TNTS)
    Found in KUG 1242+263 at R.A. = 12h45m15s.310, Decl. = +26°05'07".10
    Located 4".0 west and 4".0 north of the center of KUG 1242+263
    Mag 17.9:1/8, Type IIP (zhost=0.059) (References: ATEL 9983, OSC)

    AT2017fd (= PS17bub), TNS discovered 2017/01/07.481 by R. Gagliano, R. Post, E. Weinberg, Jack Newton, and Tim Puckett
    Found in an anonymous galaxy at R.A. = 13h56m37s.540, Decl. = +23°12'03".70
    Located 5".65 east and 1".1 south of the center of the host galaxy (PS1 image)
    Mag 20.5:3/7 (18.5:1/7), Type unknown (zhost=0.058509) (References: OSC)

    2017bd, (= DES16X2gap) TNS discovered 2017/01/03.100 by Dark Energy Survey at R.A. = 02h25m16s.200, Decl. = -05°53'12".55 Mag 19.7:1/3, Type Ia (z=0.053) (host PGC 3080370) (Discovery image) (References: ATEL 9945, OSC)

    AT2017be, (= kait-17A) (= iPTF17be) TNS discovered 2017/01/06.508 by Lick Observatory Supernova Search
    Found in NGC 2537 at R.A. = 08h13m13s.380, Decl. = +45°59'29".54
    Located 0".0 east and 0".0 north of the center of NGC 2537 (Discovery image) (Andrea Mantero image) (Ron Arbour image) (Joseph Brimacombe image) (Enrico Prosperi image)
    Mag 17.6:1/26 (17.4:1/17), Type LBV (zhost=0.001491) (References: ATEL 9954, OSC)

    2017bc, (= ASASSN-17af) (= PS17aii) ATEL 9951 discovered 2017/01/05.500 by All Sky Automated Survey for SuperNovae (ASAS-SN)
    Found in MCG -1-32-1 at R.A. = 12h19m50s.810, Decl. = -06°51'19".66
    Located 4".0 west and 2".0 north of the center of MCG -1-32-1 (Discovery image) (Joseph Brimacombe image) (PS1 image)
    Mag 17.6:1/26 (16.4:1/5), Type Ia (z=0.027) (zhost=0.026872) (References: ATEL 9945, TNS, OSC)

    2017ai, (= ASASSN-17ae) (= Gaia17acp) ATEL 9948 discovered 2017/01/04.656 by All Sky Automated Survey for SuperNovae (ASAS-SN)
    Found in an anonymous galaxy at R.A. = 16h17m02s.500, Decl. = +10°41'35".10
    Located 11".5 west and 0".3 south of the center of the host galaxy (Discovery image)
    Mag 18.1:1/14 (17.5:1/4), Type Ia (zhost=0.050270) (References: TNS, Gaia observations, OSC)

    2017ad, (= ASASSN-17ac) ATEL 9939 discovered 2017/01/02.350 by All Sky Automated Survey for SuperNovae (ASAS-SN)
    Found in an anonymous galaxy at R.A. = 14h34m26s.170, Decl. = -38°28'11".50
    Located 5".9 east and 1".5 south of the center of the host galaxy (Discovery image) (Joseph Brimacombe image)
    Mag 16.6:1/4, Type Ia (z=0.033) (zhost=0.033320) (References: ATEL 9945, TNS, OSC)

    2017B (= Gaia17abp), TNS discovered 2017/01/02.793 by Kunihiro Shima
    Found in NGC 5685 at R.A. = 14h36m16s.010, Decl. = +29°54'22".60
    Located 8".8 east and 7".7 south of the center of NGC 5685 (Discovery image) (Masanori Mizutani image) (Kunihiro Shima image) (Kunihiro Shima image) (Kunihiro Shima image) (Kunihiro Shima image)
    Mag 18.6:1/7 (17.7:1/2), Type Ia (zhost=0.034611) (References: Gaia observations, OSC)

    2017A, TNS discovered 2017/01/01.226 by Grzegorz Duszanowicz, Michal Zolnowski (RANSSP)
    Found in UGC 10104 at R.A. = 15h57m28s.350, Decl. = +30°03'39".10
    Located 5".0 east and 3".0 north of the center of UGC 10104 (Discovery image) (Grzegorz Duszanowicz image)
    Mag 17.4:1/1, Type Ia (z=0.0328) (zhost=0.032826) (References: ATEL 9993, OSC)


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