Page created: Wednesday, 25 Feb 2026 21:02:05 UTC
The target - ArLac - is being observed by HRC-I for 1 hour and 11 minutes. The observation started 47 minutes ago and ends in 25 minutes, and is part of the proposal AO-27 - Monitor the HRC-I PSF and perform a plate focus. The target - also called V* AR Lac - is located in the constellation Lacerta and is a RS CVn Variable. More information on the target can be found at SIMBAD. See related observation: 31895.
This is a time-critical and monitoring observation.



| Target: | ArLac |
| SIMBAD Type: | RS CVn Variable |
| Observation Details: | 31896 |
| Sequence Summary: | 291831 |
| Proposal Id: | 27200397 |
| Proposal: | Cycle 27, Calibration Observation, STARS AND WD |
| Instrument: | HRC-I |
| Date: | 20:14 Wednesday, 25 February 2026 (UTC) |
| Exposure (approved): | 1 hour and 11 minutes |
| Right Ascension: | 22h 08m 40.7s |
| Declination: | +45° 44' 33.3" |
| Roll: | 2° |
| Constellation: | Lacerta |
| Time critical: | Yes |
| Monitor: | Yes |
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