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Table 1
Summary of HST optical-infrared measurements of Hb 12.
| Instrument | Filter | λc (Å) | △λ (Å) | Exposures (s) | Observation date | Program ID |
|---|---|---|---|---|---|---|
| Visible | ||||||
| WFPC2 | F656N | 6564 | 22 | 400 × 2 | 2007 Feb. 23 | 11 093 |
| F656N | 6564 | 22 | 400 × 2 | 2007 Feb. 24 | 11 093 | |
| Near-infrared | ||||||
| NICMOS-3 | F175W | 17 500 | 11 000 | 3.63 × 4 | 1998 Jan. 18 | 7695 |
| F175W | 17 500 | 11 000 | 3.63 × 20 | 1998 Apr. 04–Nov. 05 | 7903 | |
| F175W | 17 500 | 11 000 | 3.63 × 4 | 1998 Jun. 18 | 7959 | |
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