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Euclid on Sky
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Table B.1

Main characteristics and properties of the 17 ERO fields.

ERO fields per project RA Dec l b E (B – V) FWHM Astrometry Number of objects
[deg] [deg] [deg] [deg] [FoV] [arcsec] [mas]
IE HE IE HE IE HE
Horsehead 85.150 −2.613 207.053 −16.931 2.020 0.158 0.54 4.7 14.2 157 264 250 942
Messier 78 86.690 −0.015 205.414 −14.356 1.588 0.158 0.56 3.9 14.5 116 373 238 334
Taurus 64.983 +28.023 169.257 −15.552 0.468 0.165 0.53 3.8 13.7 123 726 223 725
Barnard 30 82.880 +12.316 192.500 −11.526 1.001 0.158 0.54 4.4 14.4 163 063 243 012
NGC 6254 254.303 −4.100 15.145 +23.062 0.227 0.155 0.55 4.5 16.5 413 297 321 363
NGC 6397 265.174 −53.658 338.178 −11.951 0.316 0.160 0.54 2.8 15.5 782 612 493 281
NGC 6822 296.236 −14.788 25.352 −18.389 0.203 0.156 0.55 3.5 14.5 1 694 021 488 601
Holmberg II 124.790 +70.706 144.291 +32.697 0.035 0.157 0.60 5.8 15.4 466 276 245 597
IC 10 5.063 +59.288 118.952 −3.342 0.822 0.157 0.55 3.0 14.9 1 403 807 416 300
IC 342 56.730 +68.084 138.188 +10.577 0.342 0.156 0.54 5.3 14.6 2 033 293 452 034
NGC 2403 114.211 +65.586 150.587 +29.184 0.046 0.155 0.54 6.8 15.1 1 152 966 316 055
NGC 6744 287.430 −63.842 332.240 −26.139 0.059 0.157 0.52 6.2 14.9 924 913 336 109
Fornax 54.017 −35.267 236.425 −54.132 0.018 0.162 0.63 10.3 14.4 369 315 265 091
Dorado 64.014 −55.780 265.638 −43.706 0.018 0.159 0.65 7.2 15.7 518 445 356 621
Perseus 49.638 +41.651 150.296 −13.272 0.156 0.156 0.56 8.2 15.4 546 563 335 340
Abell 2390 328.397 +17.709 73.967 −27.799 0.106 0.157 0.56 5.1 15.2 469 056 310 617
Abell 2764 5.713 −49.249 315.028 −67.201 0.018 0.158 0.69 7.9 15.8 542 729 321 407

Notes. All properties are consistent across the YE , JE, and HE bands; therefore, we report only on the HE band. The right ascension (RA) and declination (Dec) coordinates represent the centres of the stacks. The average colour excess E(B – V) from Planck Collaboration XI (2014) is calculated across all valid pixels in each image, which cover approximately 0.6 deg2. For a summary of the data set’s general properties, refer to Table 2.

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