Comparison of Ground and ACS Images of NGC 3370

SN 1994ae was discovered by S. Van Dyk and the Leuschner Observatory Supernova Search (IAU Circular 6105) using an automated 0.76-meter telescope. The discovery image was taken on Nov. 14, 1994. The supernova was located about 30".3 west and 6".1 north of the galaxy's nucleus. The image on the left is from the 1.2-meter telescope at the Fred Lawrence Whipple Observatory (courtesy R. Schild/CfA) and was obtained in good conditions a few weeks after maximum light. The supernova peaked at ~13th magnitude in the visual. Extensive monitoring of the light curve in 5 colours was obtained beginning 2 weeks before maximum and provides one of the most complete photometric records of a supernova light curve (Riess et al. 1999). The image on the right is from HST 9 years later, by which time the supernova can no longer be detected. Many interesting features of the host as well as other background galaxies are blurred beyond recognition by the atmosphere in the ground-based image. HST, which sits above the distorting atmosphere, captures great detail at exquisite resolution.


NASA/ESA and A. Riess (STScI)

About the Image

NASA press release
NASA caption
Release date:4 September 2003, 15:00
Size:1000 x 500 px

About the Object

Name:IRAS 10444+1732, NGC 3370, SN 1994AE
Type:Local Universe : Star : Evolutionary Stage : Supernova
Local Universe : Galaxy : Type : Spiral
Distance:90 million light years

Image Formats

Large JPEG
139.0 KB
Screensize JPEG
156.4 KB

Colours & filters

435 nm Hubble Space Telescope
555 nm Hubble Space Telescope
814 nm Hubble Space Telescope

Notes: The observational data describes the right image, the left was captured by the ground-based 1.2-meter telescope at the Fred Lawrence Whipple Observatory.

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