Page created: Tuesday, 17 Feb 2026 21:29:49 UTC

The target - Abell 2255 - is being observed by ACIS-I for 11 hours and 6 minutes. The observation started 25 minutes ago and ends in 11 hours, and is part of the proposal Abell 2255: A testbed for uncovering the interplay between thermal and nonthermal plasmas. The target - also called ACO 2255 - is located in the constellation Draco and is a Cluster of Galaxies. More information on the target can be found at SIMBAD. See related observations: 30434, 30433, 30431, 32008, 30426, 32088, 30421, 30425, 32169.

View:
The instrument field-of-view on top of the DSS image of the source.The instrument field-of-view on top of the PSPC image of the source.The instrument field-of-view on top of the RASS image of the source.
Target: Abell 2255
SIMBAD Type: Cluster of Galaxies
Observation Details: 30422
Sequence Summary: 802207
Proposal Id: 26800190
Proposal: Cycle 26, General Observer, CLUSTERS OF GALAXIES
Instrument: ACIS-I
Chips: ACIS-0123
Data Mode: VFAINT
Date: 21:05 Tuesday, 17 February 2026 (UTC)
Exposure (approved): 11 hours and 6 minutes
Right Ascension: 17h 12m 50.0s
Declination: +64° 03' 10.6"
Roll: 66°
Constellation: Draco

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