Antilhue - Chile
Antilhue - Chile
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| Designation | NGC 3115, Bennett 42, Caldwell 53, the Spindle Galaxy |
| Object type | Type S(0) lenticular galaxy |
| Coordinates | 10 h 05 min - 07° 43' Sextans (Sex) |
| Description | NGC 3115 is also known as the
"Spindle Galaxy." It is a lenticular, a "spiral
galaxy without spiral structure", i.e. a smooth disk galaxy, where
stellar formation has stopped because the interstellar matter was used
up. From their appearance and stellar contents, they can often
hardly be distinguished from ellipticals observationally. Dreyer calls this lenticular galaxy very
bright (mag 9.7), large (8.3'x3.2'), very much
elongated (P.A. 46°), and brightening sharply to a brightened,
elongated nucleus. It lies 4.8° north of Lambda Hydrae.
North is to the right in the 15 x 10 arcmin field of view. |
| Exposure | LRGB 60:20:20:20 min @ -15°C, all exposures unbinned |
| Camera | SBIG ST-10XE selfguided + CFW8 with Astrodon LRGB filterset |
| Optics | RCOS 14.5" Ritchey-Chrétien @ f/9 (prime focus) |
| Mount | Astro-Physics AP1200GTO |
| Software | MaxIm DL/CCD, Adobe Photoshop CS |
| Location - Date - Time | San Esteban (Chile) - 10Apr05 @ 00:30 UTC |
| Conditions | Transparency 7, Seeing 5, Temperature +10°C |
