The target - NGC4654 - was observed by ACIS-S for 2 hours and 46 minutes, ended 50 minutes ago, and is part of the proposal A TREASURY SURVEY PROBING THE BARYON & ENERGY CYCLE AND X-RAY BINARY EVOLUTION IN GALAXIES AT HIGH ANGULAR RESOLUTION. The target is located in the constellation Virgo and is a HII Galaxy. More information on the target can be found at SIMBAD. See related observations: IC1954 (30146, 29639, 31991); IC5273 (30184, 29671, 31971, 32094); NGC0685 (29636, 30890, 30891); NGC1097 (30142, 30937, 30938, 29637, 30948); NGC1317 (30145, 30144, 30143, 29638); NGC1546 (30148, 30882, 29640, 30147); NGC1792 (29642, 30910); NGC1809 (30149, 29641); NGC2090 (29643, 30811, 30782); NGC2283 (29644); NGC2566 (30150, 30154, 30835, 29645, 30151, 31865, 30153, 31916, 31482); NGC2775 (30155, 30731, 30732, 29646, 30815, 30816, 30156, 32101, 32102); NGC3059 (29647, 30817, 30818, 30158, 30159, 30157); NGC3137 (30160, 29648, 31928); NGC3239 (29649, 31969); NGC3511 (29650, 31970); NGC3596 (29651, 31962); NGC3626 (30163, 30161, 30162, 31994, 32171, 31995); NGC4207 (30164, 30165, 29653, 31007, 31008); NGC4298 (30167); NGC4496A (30168); NGC4536 (29657, 30169); NGC4540 (30171); NGC4548 (30172, 32039); NGC4571 (30173, 29660); NGC4654 (30174, 32013, 29661, 32175); NGC4689 (30176, 30175, 29662); NGC4694 (30178); NGC4731 (29664, 30892, 30893, 30894); NGC4781 (29665, 30179, 30905, 30728, 30942); NGC4951 (29667, 30975); NGC5042 (29668, 30678, 30679, 30680); NGC5134 (30182, 30796, 30181, 29669, 30183); NGC5530 (29670, 30714, 30715, 30716, 30717); NGC7456 (29672).



| Target: | NGC4654 |
| SIMBAD Type: | HII Galaxy |
| Observation Details: | 32174 |
| Sequence Summary: | 601656 |
| Proposal Id: | 25628968 |
| Proposal: | Cycle 25, Director's Discretionary Time, NORMAL GALAXIES |
| Instrument: | ACIS-S |
| Chips: | ACIS-3678 |
| Data Mode: | VFAINT |
| Date: | 17:34 Saturday, 28 February 2026 (UTC) |
| Exposure (approved): | 2 hours and 46 minutes |
| Right Ascension: | 12h 43m 56.6s |
| Declination: | +13° 07' 35.4" |
| Roll: | 97° |
| Constellation: | Virgo |
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