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List of supernovae discovered in 2008 identified by the CfA SN Group [SNe in previous years]

SNe 2007

SNe in previous years

All supernovae are indentified using the Supernova Identification (SNID) code of Blondin & Tonry (2007) [ADS,astro-ph].

If you would like to receive announcements for supernovae identified by the CfA SN group, please contact: Stephane Blondin's e-mail address

SN 2008

SN 2008el (PGC 70567) (II) [CBET 1458]
August 1, 2008 UT, FLWO 1.5m spectrum shows this type-II supernova around maximum light, compared with 2004et at a similar age.

SN 2008ek (IC 1181) (Ia-91bg) [CBET 1454]
July 30, 2008 UT, MMT 6.5m spectrum shows this subluminous type-Ia supernova around maximum light, compared with 2007al at a similar age.

SN 2008ej (UGC 276) (II) [CBET 1455]
July 30, 2008 UT, MMT 6.5m spectrum shows this highly-reddened type-II supernova. Here is the same spectrum dereddened by 1 mag.

SN 2008dx (Anon. galaxy) (Ia) [CBET 1427]
June 12, 2008 UT, FLWO 1.5m spectrum shows this subluminous type-Ia supernova around one week before maximum light, compared with 2000cn at a 9 days before maximum.

SN 2008dt (NGC 6261) (Ia) [CBET 1424]
July 1, 2008 UT, FLWO 1.5m spectrum shows this type-Ia supernova around one week before maximum light, compared with SN 2005cf at 11 days before maximum.

SN 2008do (UGC 8179) (II) [CBET 1414]
June 24, 2008 UT, Magellan Clay 6.5m spectrum shows this young type-II supernova at two weeks past explosion, compared with 2004et at a similar age.

SN 2008dn (UGC 11946) (II) [CBET 1418]
June 28, 2008 UT, FLWO 1.5m spectrum shows this type-II supernova at one month past explosion, compared with 1999gi at a similar age.

SN 2008di (SDSS J121642.18+410223.7) (II) [CBET 1422]
June 27, 2008 UT, FLWO 1.5m spectrum shows this type-II supernova at 3-4 weeks past explosion, compared with 2004et at a similar age.

SN 2008dh (Anon. galaxy) (Ia) [CBET 1409]
June 12, 2008 UT, FLWO 1.5m spectrum shows this type-Ia supernova around maximum light, compared with 1994D at a one week past maximum.

SN 2008cz (AGC 211492) (Ia) [CBET 1404]
June 10, 2008 UT, FLWO 1.5m spectrum shows this type-Ia supernova around 2-3 weeks past maximum light, compared with 1994D at a similar age.

SN 2008cy (MCG -02-39-016) (II) [CBET 1403]
June 9, 2008 UT, FLWO 1.5m spectrum shows this young type-II supernova at one week past explosion, compared with 1999em at a similar age.

SN 2008cw (Anon. galaxy) (IIb) [CBET 1408]
June 6, 2008 UT, MMT 6.5m spectrum shows this type-IIb supernova around one week past maximum light, compared with 1993J at a similar age. SN 2008cw was originally classified as a peculiar type-Ib supernova similar to SN 2005bf by Yuan et al. in CBET 1395

SN 2008cu (UGC 11419) (IIn) [CBET 1396]
June 4, 2008 UT, FLWO 1.5m spectrum shows this type-IIn supernova past maximum light.

SN 2008cg (FGC 1965) (IIn) [CBET 1368]
May 8, 2008 UT, FLWO 1.5m spectrum shows this type-IIn supernova, compared with a spectrum of 1999Z taken on UT 1999 Feb. 9. Filippenko et al. (CBET 1420) report that 2008cg could be the result of a type-Ia supernova exploding within a dense circumstellar envelope, such as 2002ic and 2005gj.

SN 2008ce (NGC 4428) (II) [CBET 1364]
May 4, 2008 UT, FLWO 1.5m spectrum shows this type-II supernova several weeks past explosion.

SN 2008cd (NGC 5038) (Ia) [CBET 1362]
April 30, 2008 UT, FLWO 1.5m spectrum shows this reddened type-Ia supernova around maximum light. The spectrum is heavily contaminated by the underlying host galaxy.

SN 2008bx (MCG +07-31-004) (II) [CBET 1359]
April 29, 2008 UT, FLWO 1.5m spectrum shows this young type-II supernova.

SN 2008bt (NGC 3404) (Ia-91bg) [CBET 1337]
April 15, 2008 UT, FLWO 1.5m spectrum shows this subluminous type-Ia supernova around maximum light, compared with 1991bg at a similar age.

SN 2008bl (UGC 9317) (II) [CBET 1318]
March 29, 2008 UT, FLWO 1.5m spectrum shows this young type-II supernova.

SN 2008bg (Anon. galaxy) (Ia) [CBET 1308]
March 15, 2008 UT, FLWO 1.5m spectrum shows this type-Ia supernova around maximum light, compared with 1994ae at a similar age.

SN 2008az (UGC 10721) (II) [CBET 1295]
March 10, 2008 UT, FLWO 1.5m spectrum shows this type-IIP supernova around 3-4 weeks past explosion, compared with 1999em at a similar age.

SN 2008ax (NGC 4990) (II-pec -> IIb) [CBET 1285]
March 4, 2008 UT, FLWO 1.5m spectrum shows this young peculiar type-II supernova, compared with 1987A at 2 days past explosion. Note that 2008X1 has been dereddened by 0.6 mag in this plot. NEW: He lines have developped in the optical spectrum, hence a new IIb classification.

SN 2008aw (NGC 4939) (II) [CBET 1282]
March 4, 2008 UT, FLWO 1.5m spectrum shows this young type-II supernova.

SN 2008at (UGC 5645) (Ia) [CBET 1287]
March 5, 2008 UT, FLWO 1.5m spectrum shows this type-Ia supernova around one week past maximum, compared with 2001ep at a similar age.

SN 2008as (ESO 567- G057) (Ia) [CBET 1276]
March 1, 2008 UT, Magellan Clay 6.5m spectrum shows this type-Ia supernova around one month past maximum light, compared with 1996X at a similar age.

SN 2008aq (MCG -02-33-020) (II/IIb?) [CBET 1271]
February 28, 2008 UT, FLWO 1.5m spectrum shows this type-II/IIb supernova around one week before maximum, compared with 2006T at a similar age.

SN 2008ao (CGCG 524-054) (Ic) [CBET 1274]
February 29, 2008 UT, FLWO 1.5m spectrum shows this type-Ic supernova around maximum, compared with 1994I at a similar age.

SN 2008an (UGC 10936) (Ic) [CBET 1271]
February 28, 2008 UT, FLWO 1.5m spectrum shows this type-Ic supernova around maximum, compared with 1994I at a similar age.

SN 2008af (UGC 9640) (Ia) [CBET 1253]
February 11, 2008 UT, FLWO 1.5m spectrum shows this type-Ia supernova around one week past maximum, compared with 1992A at a similar age.

SN 2008ae (IC 577) (Ia-pec) [CBET 1250]
February 10, 2008 UT, FLWO 1.5m spectrum shows this peculiar type-Ia supernova around one week before maximum, compared with 2005hk at a similar age.

SN 2008Z (Anon. galaxy) (Ia) [CBET 1246]
February 9, 2008 UT, FLWO 1.5m spectrum shows this type-Ia supernova before maximum light, compared with 2003du at 6 days before maximum.

SN 2008Y (MCG +9-19-39) (Ia) [CBET 1246]
February 9, 2008 UT, FLWO 1.5m spectrum shows this type-Ia supernova around maximum light, compared with 2005cf at 5 days past maximum.

SN 2008X (NGC 4141) (IIP) [CBET 1242, CBET 1300]
February 8, 2008 UT, FLWO 1.5m spectrum shows this type-IIP supernova around 3-4 weeks past explosion.

SN 2008U (UGC 8917) (II) [CBET 1242, CBET 1300]
February 8, 2008 UT, FLWO 1.5m spectrum shows this possible "supernova impostor" (LBV). It could also be a type-IIn in its early stages or a low-luminosity type-IIP past the recombination phase (A. Pastorello, priv. comm.) NEW: Re-analysis of the same data show that 2008U is in fact a type-II during the hydrogen recombination phase (see CBET 1300).

SN 2008G (UGC 2851) (IIP) [CBET 1209]
January 14, 2008 UT, FLWO 1.5m spectrum shows this type-II supernova around three weeks past explosion, compared with 2004et.

SN 2008F (MCG -01-8-15) (IIP) [CBET 1209]
January 14, 2008 UT, FLWO 1.5m spectrum shows this type-II supernova around one week past explosion, compared with 1999gi.

SN 2008D (NGC 2770) (Ic-broad) [CBET 1204, CBET 1205]
January 11, 2008 UT, MMT 6.5m spectrum shows this peculiar type-Ic supernova around maximum light, compared with 1990aa and 1998bw.

SN 2008B (NGC 5829) (IIn) [CBET 1201]
January 10, 2008 UT, FLWO 1.5m spectrum shows this type-IIn supernova around maximum light, compared with 2000eo at a similar age.

SN 2008A (NGC 634) (Ia-pec) [CBET 1198]
January 5, 2008 UT, FLWO 1.5m spectrum shows this peculiar type-Ia supernova around one week before maximum, compared with 2005hk at a similar age.

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