SN 2005bc

SN 2005bc
SN 2005bc just over a week after peak brightness
Event typeSupernova
Type Ia[1]
Datec. 129.3 million years ago
(detected 2 April 2005 by Tim Puckett and L. Cox[1])
ConstellationBoötes
Right ascension14h 37m 14.78s[1]
Declination+38° 27′ 23.1″[1]
EpochJ2000.0
Galactic coordinatesLong 66.76°
Lat 65.17°
Distance129.3 Mly (39.63 Mpc)[2]
Redshift0.0132, 0.0122 Edit this on Wikidata
HostNGC 5698[1]
Progenitor typewhite dwarf
Peak apparent magnitude+16.6[1]
Other designationsSN 2005bc
[edit on Wikidata]

SN 2005bc was a Type Ia supernova[3] occurring in the barred spiral galaxy NGC 5698,[1] located in the northern constellation of Boötes. SN 2005bc was discovered on 2 April 2005 by LOSS and independently by Tim Puckett and L. Cox.[4] It was positioned at an offset of 4.6″ east and 7.5″ north of the galactic nucleus.[1] The supernova was at magnitude 16.4 at discovery, and quickly rose to a peak magnitude of around 15.3 (in visible light) just over a week after discovery. It showed an expansion velocity of 12,000 km/s.[3] By mid-May, the supernova had faded to 17th magnitude.

The host galaxy, NGC 5698, along with the supernova lie approximately 129 million light-years (~40 million parsecs) from Earth.[2] As the supernova was of Type Ia, its progenitor star was a compact white dwarf star that exceeded the Chandrasekhar limit.

  1. ^ a b c d e f g h Cite error: The named reference Barbon_et_al_2008 was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference Tully_et_al_2016 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Modjaz_et_al_2005 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Burket_et_al_2005 was invoked but never defined (see the help page).