Bright Supernovae - 2010

This data comes from IAU Circulars and occasionally more data will be provided on IAU's Astronomical Headlines page. An archive of the 2010 updates to this page is available.

This is a partial list of the SN discovered in 2010. Since 2010 is still ongoing, please look at the main page for the latest data.   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
  • Mike Richmond's Supernova list

    PS1-1000253, ATEL 2668 discovered 2010/05/11.5 PS1 Science consortium Mag 19.9, Type IIL (Joseph Brimacombe image)
    PS1-1000252, ATEL 2667 discovered 2010/05/10.3 PS1 Science consortium Mag 21.4, Type Ia (Joseph Brimacombe image)

    PTF10hif, ATEL 2649 discovered 2010/05/16 by Palomar Transient Factory Mag 19.6, Type IIn (Joseph Brimacombe image)

    2010dd, CBET 2294 discovered 2010/05/23.92 by F. Ciabattari, M. Rossi, and G. Petroni
    Found in UGC 10594 at R.A. = 16h52m47s.60, Decl. = +51°03'45".7
    Located 8" west and 3" north of the center of UGC 10594 (Discovery image (Discovery page in Italian [Translate]) (Joseph Brimacombe image) (Diego Rodriguez image) (Francisco Centenera/NTO image) (Ramon Naves image) (Manfred Mrotzek image) (Joel Nicolas image) (Francisco Centenera image)
    Mag > 20 (15.8), Type Ia (References: CBET 2313)

    PTF10heh, ATEL 2634 discovered 2010/04/04.30 by Palomar Transient Factory Mag 19.8, Type IIn (Joseph Brimacombe image)

    2010bq, CBET 2241 discovered 2010/04/14.03 by Grzegorz Duszanowicz; E. Briggs, Jack Newton, and Tim Puckett
    Found in UGC 10547 at R.A. = 16h46m55s.36, Decl. = +34°09'35".8
    Located 17" west and 15" north of the center of UGC 10547 (Duszanowicz discovery image) (Puckett discovery image) (Duszanowicz confirmation image) (Paul Mortfield image) (Joseph Brimacombe image (wide field)) (Manfred Mrotzek image) (William Wiethoff image) (JM Llapasset image) (Denis Buczynksi image (mirror)) (Johan Warell image) (Rafael Benavides image)
    Mag 17.9, Type IIn (References: CBET 2243)

    Possible supernova K1004-1, CBET 2239 discovered 2010/03/19.75 by Kazan State University Astrotel observatory
    Found in an anonymous galaxy at R.A. = 12h39m48s.34, Decl. = +05°15'43".0
    Located 9" west and 10" north of the center of the host galaxy (Discovery image)
    Mag 19.5, Type unknown (References: ISN_Chat 335)

    2010bn (= CSS100405:114456-050444), CBET 2234 discovered 2010/03/21.33 by Catalina Real-Time Transient Survey
    Found in an anonymous galaxy at R.A. = 11h44m55s.72, Decl. = -05°04'44".2
    Located 2".6 west and 3".5 south the center of the host galaxy (Discovery image) (Joseph Brimacombe image (wide field)) (Joel Nicolas image)
    Mag 17.2, Type Ia (References: ATEL 2555)

    2010bm (= CSS100404:112205+092644), CBET 2234 discovered 2010/04/04.32 by Catalina Real-Time Transient Survey, Mag 18.3, Type IIP (Discovery image) (Joseph Brimacombe image (wide field)) (References: ATEL 2555)

    2010bl, CBET 2233 discovered 2010/04/07.25 by Jack Newton and Tim Puckett
    Found in MCG -03-32-018 at R.A. = 12h40m34s.92, Decl. = -20°33'40".8
    Located 2".0 west and 3".9 north of the center of MCG -03-32-018 (Discovery image) (Joseph Brimacombe image (wide field))
    Mag 16.4, Type Ia (FAST spectrum) (References: CBET 2236)

    2010bi, CBET 2229 discovered 2010/03/24.16 by CHASE
    Found in NGC 3509 at R.A. = 11h04m25s.49, Decl. = +04°50'17".6
    Located 28".4 east and 34".6 north of the center of NGC 3509 (Discovery image (Discovery page)) (Joseph Brimacombe image) (Manfred Mrotzek image) (Joseph Brimacombe image color) (William Wiethoff image) (Paolo Corelli image) (Rafael Ferrando image) (Joel Nicolas image)
    Mag 17.7, Type IIP (References: CBET 2235)

    2010bh (= GRB 100316D), CBET 2227, discovered 2010/03/16 by BAT Type Ic (GRB) (Vergani image) (Gemini image) (Joseph Brimacombe image) (References: CBET 2228, GNC 10496, 10505, 10511, 10512, 10513, 10514, 10519, 10520, 10523, 10524, 10525, 10533, 10541, 10543)

    2010az (= CSS100216:125700-173735), CBET 2225 discovered 2010/02/16.48 by Catalina Real-Time Transient Survey
    Found in an anonymous galaxy at R.A. = 12h56m59s.62, Decl. = -17°37'35".5
    Located 3".9 west and 12".6 north the center of the host galaxy (Discovery image) (Joseph Brimacombe image)
    Mag 17.6, Type Ia (References: ATEL 2447)

    2010ay (= CSS100317:123527+270403), CBET 2224 discovered 2010/03/17.38 by Catalina Real-Time Transient Survey
    Found in an anonymous galaxy at R.A. = 12h35m27s.19, Decl. = +27°04'02".8
    Located near the center of the host galaxy (Discovery page) (Joseph Brimacombe image)
    Mag 17.0, Type Ic (References: ATEL 2490, 2501, 2503)

    2010ax, CBET 2219 discovered 2010/03/15.1 by La Sagra Sky Survey
    Found in PGC 1383919 at R.A. = 14h41m53s.42, Decl. = +10°45'01".4
    Located 6" east and 6" north of the center of PGC 1383919 (Discovery image) (Joseph Brimacombe image (wide field)) (William Wiethoff image) (Manfred Mrotzek image)
    Mag 18.0: (17.0), Type Ia (References: CBET 2235)

    2010aw, CBET 2218 discovered 2010/03/19.54 by Lick Observatory Supernova Search
    Found in UGC 10781 at R.A. = 17h16m12s.28, Decl. = +31°47'36".4
    Located 19".0 east and 3".1 north of the center of UGC 10781 (Discovery image) (Joseph Brimacombe image (wide field))
    Mag 18.3, Type II

    2010av, CBET 2218 discovered 2010/03/19.44 by Lick Observatory Supernova Search
    Found in IC 1099 at R.A. = 15h06m57s.01, Decl. = +56°30'27".8
    Located 18".6 east and 5".9 south of the center of IC 1099 (Discovery image) (Joseph Brimacombe image) (Joseph Brimacombe image) (William Wiethoff image)
    Mag 17.9, Type Ib/c (References: 1940C)

    2010au, CBET 2217 discovered 2010/03/15.942 by Ron Arbour
    Found in PGC 82347 at R.A. = 09h12m36s.39, Decl. = +34°51'17".0 (near NGC 2780)
    Located 2".0 east and 1".0 south of the center of PGC 82347 (Discovery image) (Ron Arbour image) (David Briggs image) (Joseph Brimacombe image) (Martin Mobberley image) (JM Llapasset image)
    Mag 16.7, Type Ia (References: CBET 2223)

    2010at, CBET 2216 discovered 2010/03/19.27 by Jack Newton and Tim Puckett
    Found in MCG +13-09-10 at R.A. = 12h04m59s.47, Decl. = +76°07'52".3
    Located 29".5 west and 7".5 south of the center of MCG +13-09-10 (Joseph Brimacombe image (Wide field)) (William Wiethoff image) (Joel Nicolas image) (Joel Nicolas image) (Rafael Benavides image) (Xavier Bros image)
    Mag 17.1, Type Ia-pec (References: CBET 2222)

    2010as, CBET 2215 discovered 2010/03/19.22 by CHASE
    Found in NGC 6000 at R.A. = 15h49m49s.23, Decl. = -29°23'09".7
    Located 3".1 west and 2".0 north of the center of NGC 6000 (Discovery image (Discovery page)) (Joseph Brimacombe image)
    Mag 15.2*, Type Ib/c (References: CBET 2221, 2242; SN 2007ch)

    2010ap - 2010ar, CBET 2214 discovered 2010/02/12-15 by PS1 Science Consortium Mag > 19.2 (References: CBET 2226)

    2010ao, CBET 2211 discovered 2010/03/18.46 by Lick Observatory Supernova Search
    Found in UGC 8686 at R.A. = 13h43m40s.99, Decl. = +03°54'00".1
    Located 10".6 east and 12".8 north of the center of UGC 8686 (Discovery image) (William Wiethoff image) (Joseph Brimacombe image) (Joel Nicolas image) (Manfred Mrotzek image) (Joel Nicolas image)
    Mag 17.3, Type Ia (References: CBET 2223)

    ROTSE3 J125708.9-172527, ATEL 2485 discovered 2010/03/08.53 by ROTSE collaboration
    Found in an anonymous galaxy at R.A. = 12h57m08s.93, Decl. = -17°25'27".1
    Located 1.1" west and 13.0" south of the center of the host galaxy (Discovery image) (Joseph Brimacombe image) (Joseph Brimacombe image (wide field))
    Mag 17.4, Type Ia (References: ATEL 2489)

    2010an, CBET 2211 discovered 2010/03/11.56 by Lick Observatory Supernova Search
    Found in NGC 6109 at R.A. = 16h17m40s.46, Decl. = +35°00'10".1
    Located 1".3 west and 5".1 south of the center of NGC 6109 (Discovery image) (William Wiethoff image) (Joseph Brimacombe image) (Manfred Mrotzek image)
    Mag 16.4, Type Ia (References: CBET 2223; SN 2003ia)

    2010am (= CSS100312:093302+154909), CBET 2208 discovered 2010/03/12.19 by Catalina Real-Time Transient Survey
    Found in an anonymous galaxy at R.A. = 09h33m01s.75, Decl. = +15°49'08".8
    Located 5".2 west and 7".3 south the center of the host galaxy (Discovery page) (Joseph Brimacombe image (wide field)) (Joseph Brimacombe image) (William Wiethoff image)
    Mag 17.3, Type IIb

    2010al, CBET 2207 discovered 2010/03/13.03 by Doug Rich
    Found in UGC 4286 at R.A. = 08h14m15s.91, Decl. = +18°26'18".2
    Located 9".5 west and 8".1 south of the center of UGC 4286 (Discovery image)
    Mag 16.2*, Type IIn-pec (References: ATEL 2491, CBET 2220, CBET 2223, ATEL 2513, ATEL 2532)
    SN 2010al images sub-page

    ROTSE3 J114340.5+485056, ATEL 2481 discovered 2010/03/06.21 by ROTSE collaboration
    Found in an anonymous galaxy at R.A. = 11h43m40s.45, Decl. = +48°50'56".4
    Located 1.5" east and 0.4" north of the center of the host galaxy (Discovery image) (Joseph Brimacombe image) (William Wiethoff image)
    Mag 18.4 (18.2), Type Ia (References: ATEL 2489)

    2010ak, CBET 2203 discovered 2010/03/11.55 by Lick Observatory Supernova Search
    Found in MCG +3-41-142 at R.A. = 16h10m50s.01, Decl. = +17°58'36".1
    Located 7".5 west and 7".3 north of the center of MCG +3-41-142 (Discovery image) (Joseph Brimacombe image (wide field)) (Andrey Prokopovich image)
    Mag 18.1, Type Ic (FAST spectrum)

    2010aj, CBET 2201 discovered 2010/03/12.39 by Jack Newton and Tim Puckett
    Found in MCG -1-32-35 at R.A. = 12h40m15s.16, Decl. = -09°18'14".3
    Located 12".4 west and 11".7 north of the center of MCG -1-32-35 (Discovery image) (Joseph Brimacombe image) (William Wiethoff image) (JM Llapasset image) (Rafael Benavides)
    Mag 16.2*, Type unknown

    2010ai, CBET 2200 discovered 2010/03/11.755 by Koichi Itagaki; ROTSE collaboration
    Found in an anonymous galaxy at R.A. = 12h59m24s.03, Decl. = +27°59'47".1 (near NGC 4873)
    Located 12" west and 1" south of the center of the host galaxy (Itagaki discovery image) (ROTSE discovery image) (Joseph Brimacombe image (wide field)) (Adolfo San Segundo image) (William Wiethoff image) (Joel Nicolas image) (JM Llapasset image) (Joel Nicolas image) (Joel Nicolas image) (JM Llapasset image) (Joel Nicolas image) (Marc Deldem image)
    Mag 17.2 (16.6), Type Ia

    2010ah (= PTF10bzf), CBET 2198 discovered 2010/02/23.504 by Palomar Transient Factory
    Found in an anonymous galaxy at R.A. = 11h44m02s.99, Decl. = +55°41'27".6 (near NGC 3846)
    Located 5.2" from the center of the host galaxy (Joseph Brimacombe image (wide field)) (Xavier Bros image) (EVLA image) (William Wiethoff image)
    Mag 18.8, Type Ic (References: ATEL 2470 2471, 2472, 2473, 2479, 2483)

    ROTSE3 J133033.0-313427, ATEL 2468 discovered 2010/03/07.04 by ROTSE collaboration
    Found in ESO 444-G60 at R.A. = 13h30m33s.03, Decl. = -31°34'26".8
    Located 4.5" east and 8.2" north of the center of ESO 444-G60 (Discovery image) (Joseph Brimacombe image)
    Mag 16.9, Type Ia (References: ATEL 2480)

    2010ag, CBET 2195 discovered 2010/03/05.43 by L. Cox and Tim Puckett
    Found in UGC 10679 at R.A. = 17h03m53s.63, Decl. = +31°30'06".2
    Located 7".9 east and 8".9 north of the center of UGC 10679 (Joseph Brimacombe image (color) (wide field)) (Lode Stevens image) (Joseph Brimacombe image) (Joseph Brimacombe image) (JM Llapasset image) (Marc Deldem image) (Joel Nicolas image) (Manfred Mrotzek image) (Joel Nicolas image) (Ramon Naves image) (Rafael Benavides image) (Francisco Centenera/NTO image)
    Mag 18.5 (16.1), Type Ia-pec (References: CBET 2196)

    2010af, CBET 2194 discovered 2010/03/04.808 by Tom Boles
    Found in NGC 3172 at R.A. = 11h39m19s.3, Decl. = +89°06'05".7
    Located 112" west and 31" north of the center of NGC 3172 (Discovery image (TIFF version)) (Martin Mobberley image) (Joseph Brimacombe image (wide field)) (Taurus Hill Obs image) (Roger Pickard image) (Denis Buczynski image) (Nick James image) (Rodrigo Losada image) (Joel Nicolas image)
    Mag 17.1, Type Ia (References: CBET 2197; SN 2004fy)

    2010ae, CBET 2184 discovered 2010/02/22.06 by CHASE
    Found in ESO 162-17 at R.A. = 07h15m54s.65, Decl. = -57°20'36".9
    Located 0".6 east and 0".2 south of the center of ESO 162-17 (Discovery image (Discovery page)) (Joseph Brimacombe image) (Stu Parker)
    Mag 15.9, Type Ia-pec (References: CBET 2191)

    PTF10bjs, ATEL 2453 discovered 2010/02/19.2 by Palomar Transient Factory
    Found in MCG +9-21-83 at R.A. = 13h01m11s.25, Decl. = +53°48'57".5
    Located near the center of MCG +9-21-83 (Joseph Brimacombe image) (William Wiethoff image) (Adolfo San Segundo image) (Xavier Bros image) (Joel Nicolas image) (JM Llapasset image) (Joel Nicolas image) (Joel Nicolas image)
    Mag 17.3 (16.4), Type Ia

    2010ad, CBET 2169 discovered 2010/02/18.57 by Lick Observatory Supernova Search
    Found in UGC 10143 at R.A. = 16h02m13s.56, Decl. = +15°56'18".8
    Located 5".2 east and 3".8 north of the center of UGC 10143 (Discovery image) (Joseph Brimacombe image) (Joseph Brimacombe image wide field)
    Mag 16.0, Type II

    PS1-1000023, ATEL 2448 discovered 2010/02/12.5 by PS1 Science Consortium
    Found in CGCG 290-062 at R.A. = 10h42m41s.89, Decl. = +58°50'37".8
    Located 5.1" east and 1.5" south of the center of CGCG 290-062 (Discovery image) (Joseph Brimacombe image) (Joseph Brimacombe image wide field) (Andrey Prokopovich image)
    Mag 17.3, Type Ia

    2010ac, CBET 2174 discovered 2010/02/13.31 by CHASE
    Found in IC 4352 at R.A. = 13h58m24s.35, Decl. = -34°30'55".4
    Located 9".5 west and 6".6 north of the center of IC 4352 (Discovery image (Discovery page)) (Joseph Brimacombe image)
    Mag 16.6*, Type Ic (References: CBET 2178)

    2010ab, CBET 2172 discovered 2010/02/11.868 by Tom Boles
    Found in MCG +12-9-56 at R.A. = 09h35m56s.03, Decl. = +74°00'00".6
    Located 6".9 east and 3".3 north of the center of MCG +12-9-56 (Discovery image (mirror)) (Paolo Corelli image) (Joseph Brimacombe image) (Martin Mobberley image) (Joseph Brimacombe image) (Xavier Bros image) (JM Llapasset image) (Xavier Bros image) (Andrey Prokopovich image)
    Mag 17.8, Type II (References: CBET 2182

    2010aa, CBET 2171 discovered 2010/02/09.771 by Berto Monard
    Found in NGC 692 at R.A. = 01h48m43s.21, Decl. = -48°39'00".7
    Located 11" east and 7" south of the center of ESO 320-G35 (Discovery image) (Stu Parker image (prediscovery)) (Joseph Brimacombe image)
    Mag 15.7, Type unknown (References: SN 2007st)

    2010Z, CBET 2169 discovered 2010/02/03.34 by Lick Observatory Supernova Search; Simone Leonini
    Found in NGC 2797 at R.A. = 09h16m21s.30, Decl. = +17°43'40".6
    Located 5".4 west and 2".4 north of the center of NGC 2797 (LOSS discovery image) (Leonini discovery image) (Joseph Brimacombe image) (Jordi Camarasa image) (Simone Leonini image) (Xavier Bros image) (William Wiethoff image) (Manfred Mrotzek image) (Andrey Prokopovich image)
    Mag 16.0 (15.6), Type II (References: CBET 2173)

    2010Y, CBET 2168 discovered 2010/02/08.87 by Giancarlo Cortini
    Found in NGC 3392 at R.A. = 10h51m03s.95, Decl. = +65°46'47".0
    Located 15" east and 7" south of the center of NGC 3392 (Discovery image)
    Mag 17.1 (15.1), Type Ia
    SN 2010Y images sub-page

    2010X, CBET 2166 discovered 2010/02/07.07 by Doug Rich
    Found in NGC 1573A at R.A. = 04h48m27s.90, Decl. = +73°28'14".8
    Located 4".4 east and 6".0 north of the center of NGC 1573A (Discovery image (mirror)) (Burke Confirmation image) (Dan Milisavljevic image) (Joseph Brimacombe image) (Joseph Brimacombe image wide field) (Joel Nicolas image)
    Mag > 18.0 (16.6), Type Ic (References: CBET 2167)

    2010W, CBET 2165 discovered 2010/02/07.075 by Berto Monard
    Found in ESO 320-G35 at R.A. = 11h56m48s.07, Decl. = -38°11'11".3
    Located 18" east and 22" north of the center of ESO 320-G35 (Discovery image) (Joseph Brimacombe image) (Joseph Brimacombe image) (Berto Monard image)
    Mag 17.4* (16.6), Type unknown

    2010V, CBET 2162 discovered 2010/02/04.096 by MASTER robotic Net
    Found in PGC 51710 at R.A. = 14h28m38s.53, Decl. = +30°38'09".7
    Located 5".9 west and 4".6 north of the center of PGC 51710 (Discovery image) (Nissinen Confirmation image) (Yusa confirmation image) (Joseph Brimacombe image) (Joseph Brimacombe image color) (Joseph Brimacombe image wide field) (Daniel Marlow image)
    Mag 16.4* (15.3), Type Ia (References: CBET 2167)

    2010U, CBET 2161 discovered 2010/02/05.634 by Koichi Itagaki
    Found in NGC 4214 at R.A. = 12h15m41s.06, Decl. = +36°20'02".9
    Located 20" east and 27" north of the center of NGC 4214 (Discovery image) (Joseph Brimacombe image color) (Joseph Brimacombe image color, wide field) (Toru Yusa image) (Joel Nicolas image)
    Mag > 18.0 (16.3), Type LBV (References: CBET 2163; SN 1954A)

    2010T, CBET 2159 discovered 2010/01/25.30 by CHASE
    Found in an anonymous galaxy at R.A. = 13h14m47s.88, Decl. = -15°58'24".8 (near NGC 5038)
    Located 1".9 east and 2".3 south of the center of an anonymous galaxy (Discovery image (Discovery page)) (Joseph Brimacombe image)
    Mag 18.2, Type unknown

    2010P, CBET 2145 discovered 2010/01/23.1 by S. Mattila and E. Kankare (NOT)
    Found in ARP 299 at R.A. = 11h28m31s.38, Decl. = +58°33'49".3 (west part of NGC 3690)
    Located 6".2 east and 0".3 north of the "C" nucleus of ARP 299 (Discovery image)
    Mag 15.9 (IR), Type Ib/IIb (References: CBET 2149, ATEL 2432, CBET 2189; SN 2010O, 2005U, 1999D, 1998T, 1993G, 1992bu, 1990al)
    2010O and 2010P images page

    2010O, CBET 2144 discovered 2010/01/24.37 by Jack Newton, and Tim Puckett
    Found in NGC 3690 at R.A. = 11h28m33s.86, Decl. = +58°33'51".6 (in ARP 299)
    Located 3".7 east and 5".7 north of the center of NGC 3690 (Discovery image)
    Mag 15.6, Type Ib (References: CBET 2149, ATEL 2422, ATEL 2432; SN 2010P, 2005U, 1999D, 1998T, 1993G, 1992bu, 1990al)
    2010O and 2010P images page

    2010O_old, CBET 2143 discovered 2010/01/23.87 by Alessandro Dimai and F. Martinelli (CROSS)
    Found in IC 356 at R.A. = 04h07m47s.27, Decl. = +69°48'47".0
    Located 2".6 east and 1".3 north of the center of IC 356 (Discovery image) (Confirmation image)
    Mag 15.2, Type Foreground Star (References: CBET 2144)

    2010N (= CSS100112:130905+170422), CBET 2138 discovered 2010/01/12.50 by Catalina Real-Time Transient Survey
    Found in an anonymous galaxy at R.A. = 13h09m05s.24, Decl. = +17°04'22".3
    Located near the center of the host galaxy (Discovery page) (Joseph Brimacombe image)
    Mag 17.1 (16.7), Type Ia

    2010K (= CSS100108:120247+022406), CBET 2131 discovered 2010/01/08.49 by Catalina Real-Time Transient Survey
    Found in an anonymous galaxy at R.A. = 12h02m46s.87, Decl. = +02°24'06".1
    Located 1".4 west and 3".5 north of the center of the host galaxy (Discovery page) (Stan Howerton image) (Joseph Brimacombe image) (Joseph Brimacombe image)
    Mag 17.1 (16.4), Type II

    2010H, CBET 2130 discovered 2010/01/16.43 by Lick Observatory Supernova Search
    Found in IC 494 at R.A. = 08h06m24s.36, Decl. = +01°02'09".1
    Located 3".9 east and 0".7 south of the center of IC 494 (Discovery image) (Joseph Brimacombe image) (Joseph Brimacombe image) (Daniel Marlow image) (Rui Branco image) (JM Llapasset image) (Ivan Maly image) (Manfred Mrotzek image)
    Mag 15.2*, Type Ia (References: CBET 2133)

    2010G, CBET 2126 discovered 2010/01/10.46 by ROTSE collaboration
    Found in an anonymous galaxy at R.A. = 12h25m10s.01, Decl. = +45°19'43".9 (near PGC 40576)
    Located 0".5 west and 1".5 south of the center of the host galaxy (Discovery image) (Joseph Brimacombe image) (Joseph Brimacombe image wide field)
    Mag 18.8, Type Ia

    2010F, CBET 2125 discovered 2010/01/14.10 by CHASE
    Found in NGC 3120 at R.A. = 10h05m21s.05, Decl. = -34°13'21".0
    Located 24".8 west and 9".1 south of the center of NGC 3120 (Discovery image (Discovery page)) (Joseph Brimacombe image color)
    Mag 15.9* (14.7), Type II (References: CBET 2137, ATEL 2618; SN 1999ca)

    2010E, CBET 2121 discovered 2009/12/23.603 by Perth Observatory
    Found in ESO 13-G28 at R.A. = 02h02m32s.48, Decl. = -79°40'52".5
    Located 1" east and 35" south of the center of ESO 13-G28 (Discovery image) (Peter Marples image) (Joseph Brimacombe image)
    Mag 17.0, Type II (References: CBET 2137)

    2010D, CBET 2119 discovered 2010/01/10.50 by Lick Observatory Supernova Search
    Found in UGC 5714 at R.A. = 10h31m44s.3, Decl. = +46°40'05".0
    Located 7".7 west and 12".8 south of the center of UGC 5714 (Discovery image) (Joseph Brimacombe image) (Joseph Brimacombe image wide field) (Lode Stevens image) (Daniel Marlow image) (William Wiethoff image) (JM Llapasset image) (Joel Nicolas image) (Manfred Mrotzek image)
    Mag 17.9 (17.2), Type II (References: CBET 2122)

    2010C, CBET 2119 discovered 2010/01/10.49 by Lick Observatory Supernova Search
    Found in NGC 3428 at R.A. = 10h51m29s.9, Decl. = +09°16'33".1
    Located 5".3 east and 12".9 south of the center of NGC 3428 (Discovery image) (Joseph Brimacombe image) (Daniel Marlow image)
    Mag 18.5, Type LBV (References: CBET 2122)

    2010B, CBET 2115 discovered 2010/01/07.730 by Masaki Tsuboi
    Found in NGC 5370 at R.A. = 13h54m08s.7, Decl. = +60°40'50".4
    Located 5".1 west and 9".1 north of the center of NGC 5370 (Discovery image) (Markku Nissinen image) (Joseph Brimacombe image) (Taurus hill Obs image) (Joseph Brimacombe image) (Lode Stevens image) (Stan Howerton image) (Daniel Marlow image) (JM Llapasset image) (Krzysztof Kida image) (William Wiethoff image) (Rui Branco) (JM Llapasset image) (Manfred Mrotzek image) (Johan Warell image) (Manfred Mrotzek image)
    Mag 16.2* (14.1), Type Ia (References: ATEL 2379, CBET 2117, 2118)

    2010A, CBET 2109 discovered 2010/01/04.14 by L. Cox, Jack Newton, and Tim Puckett
    Found in UGC 2019 at R.A. = 02h32m39s.46, Decl. = +00°37'10".2
    Located 2".4 east and 6".9 north of the center of UGC 2019 (Discovery image) (Joseph Brimacombe image) (JM Llapasset image) (Diego Rodriguez image) (Stan Howerton image) (Joseph Brimacombe image color, wide field) (Joseph Brimacombe image) (Stan Howerton image) (Lode Stevens image) (JM Llapasset image) (Joel Nicolas image) (William Wiethoff image) (JM Llapasset image)
    Mag 16.0* (15.1), Type Ia (References: CBET 2112; SN 2006fo)

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