Page created: Wednesday, 18 Feb 2026 21:28:55 UTC

The target - Abell 2255 - was observed by ACIS-I for 5 hours and 41 minutes, ended 9 minutes ago, 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, 30422, 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: 30425
Sequence Summary: 802207
Proposal Id: 26800190
Proposal: Cycle 26, General Observer, CLUSTERS OF GALAXIES
Instrument: ACIS-I
Chips: ACIS-0123
Data Mode: VFAINT
Date: 15:38 Wednesday, 18 February 2026 (UTC)
Exposure (approved): 5 hours and 41 minutes
Right Ascension: 17h 12m 50.0s
Declination: +64° 03' 10.6"
Roll: 60°
Constellation: Draco

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