69D0041A.html |
RA Range: 23:58
Constraint set (Typical seeing, Transparency,Airmass, FLI, Moon distance): 1.0 2CLR 1.5 0.3 30
| Pre-imaging run? |
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Chilean run? |
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Special calibrations? |
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| Time critical? |
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ToO? |
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Carry-over run? |
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This is a simple MOS project, aimed to determine the atmospheric parameters and wind properties of blue supergiants in NGC 7793. For this purpose two grisms (600B and 1200R) are used to cover the relevant spectral range with sufficient resolving power. Each set of targets is repeated 4 times, both in the blue (OB marked B) and in the red (OBs marked R) ranges. To cover the whole galaxy and given the FORS2 f.o.v., two fields are required.
README of this run: