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Click here for a 200% crop showing the planetary nebula PNG 3.9+1.6 which is approximately at 5 o'clock from Terzan 5
| Catalogue and alternative designations |
Terzan 5 |
| Type | Globular Cluster |
| Position | 17 48 05, -24 46 48 |
| Constellation | Sagittarius |
| Camera and Telescope | STXL6303E and 36.8 cm Ritchey Chretien |
| Focal Ratio | F9 |
| Exposure Details | LRGB exposure with the luminance a combination of standard luminance (80 minutes) and near infrared luminance (greater than 700nm). The NIR luminance was 150 minutes. R=G=B=90 minutes. All exposures were 1x1 and Astrodon series 2 filters were used. |
| Description | Terzan
5 is one of the brighter Terzan
globular clusters, a group of
heavily obscured globular
clusters discovered by Agop
Terzan in 1968. They are
extremely reddened and best
studied in the infrared.
Once thought to be totally
impossible for amateur
observers, most of them have now
been visually observed.
Terzan 5 has an apparent
magnitude of 12.8 and is
approximately 1' in diamete.
|