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Table 3
Imaging observations.
| Name | Filter | Exposure time | Number of fields | Seeing | ZP shift |
| (s) | (arcsec) | (mag) | |||
|
|
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| NGC 6034 | u ′ | – | – | 1.4 | –0.15 |
| NGC 6034 | B | 3600 | 4 | 2.8 | 0.01 |
| NGC 6034 | g′ | – | – | 1.4 | –0.03 |
| NGC 6034 | Rc | 1800 | 4 | 2.4 | 0.02 |
| NGC 6034 | r′ | – | – | 1.4 | –0.19 |
| NGC 6034 | i′ | – | 1.1 | –0.01 | |
| NGC 6034 | z′ | – | – | 1.3 | –0.04 |
|
|
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| 1RXS J235814.4+150524 | u′ | – | – | 1.1 | –0.02 |
| 1RXS J235814.4+150524 | g′ | – | – | 1.1 | 0.06 |
| 1RXS J235814.4+150524 | Rc | 4500 | 1 | 2.8 | –0.11 |
| 1RXS J235814.4+150524 | r′ | – | – | 1.1 | |
| 1RXS J235814.4+150524 | i′ | – | – | 1.2 | –0.22 |
| 1RXS J235814.4+150524 | z′ | – | – | 1.2 | –0.09 |
|
|
|||||
| RX J1119.7+2126 | u′ | – | – | 1.4 | 0.08 |
| RX J1119.7+2126 | v | 49 230 | 1 | 2.7 | 0.00 |
| RX J1119.7+2126 | B | 10 800 | 1 | 3.0 | 0.00 |
| RX J1119.7+2126 | g | 18 000 | 1 | 2.5 | –0.04 |
| RX J1119.7+2126 | g′ | – | – | 1.8 | –0.15 |
| RX J1119.7+2126 | V | 7200 | 1 | 3.1 | 0.06 |
| RX J1119.7+2126 | Rc | 4500 | 1 | 2.1 | 0.29 |
| RX J1119.7+2126 | r | 10 800 | 1 | 2.3 | 0.30 |
| RX J1119.7+2126 | r′ | – | – | 1.7 | –0.08 |
| RX J1119.7+2126 | Ic | 7200 | 1 | 3.4 | –0.05 |
| RX J1119.7+2126 | i′ | – | – | 1.4 | –0.18 |
| RX J1119.7+2126 | z′ | – | – | 1.3 | –0.11 |
Notes. Column 1: group name, Col. 2: band, Col. 3: total duration of the summed exposures (when OHP data), Col. 4: number of different fields on the same target (when OHP data), Col. 5: seeing, Col. 6: zero point shift when computing photometric redshifts.
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