NGC 1553 -- S0 galaxy, sky charts (1 degree & 30 arcmin sides) with list of objects below, in order of distance from galaxy at center.

comment on field displayed below: Two neighboring galaxies with a known physical link. Object arrayed in unclear patterns. Note the two QSO candidates 95 and 96, due East (left) of the lower galaxy, which are sixth row and eighth row in the list below. They are 52 arcsec apart, and are essentially identical every way, both optically and in X-ray flux. These are likely to be related objects, maybe even the long-sought-after wide gravitational lens.
   
label coordinates (J2000) dist asec angle E-N type R mag B mag com R psf B psf Name conf assoc QSO pct z flux
45 041621.4-554733 103 114 X 19.7 21.2 * * CXOMPJ041621.3-554733 90 45 4
72 041612.0-554903 133 174 X 20.1 21.2 * * 1RXH J041612.2-554902 79 72 2
49 041615.8-554951 186 166 X 18.0 21.1 1 * CXOMPJ041615.7-554951 87 49 6
50 041551.4-554901 206 231 X 18.4 20.8 1 * CXOMPJ041551.3-554900 96 50 109
76 041635.5-554443 248 59 X 0 21.6 x * CXOMPJ041635.4-554442 94 76 7
95 041649.1-554703 328 92 X 19.9 19.8 * * CXOMPJ041649.0-554702 99 95 43
74 041622.4-555205 330 162 X 19.9 20.7 * * 1RXH J041622.8-555207 80 74 2
96 041654.9-554721 378 95 X 19.7 20.0 * * CXOMPJ041655.0-554721 99 96 44
91 041524.5-554432 411 290 X 20.9 20.8 * * 1RXH J041524.6-554431 100 91 4
91 041642.2-554046 454 36 X 20.2 20.9 * * CXOMPJ041642.1-554046 91 91 6
39 041546.0-553913 502 336 X 18.1 20.0 * * CXOMPJ041545.9-553913 98 39 6
79 041610.3-555529 518 180 X 20.1 21.4 * * 1RXH J041610.3-555530 83 79 5
68 041527.2-555339 546 222 X 0 22.1 x * CXOMPJ041526.9-555338 85 68 12
46 041625.6-555547 551 166 X 19.7 20.6 1 * 1RXH J041626.0-555550 94 46 4
66 041713.3-554337 566 70 X 19.6 21.4 * * CXOMPJ041713.3-554337 88 66 19
78 041556.0-555609 571 192 X 19.7 20.7 * * CXOMPJ041555.8-555608 91 78 7
83 041434.1-554955 831 257 X 19.7 20.7 * * 2RXP J041434.4-554956 91 83 7
73 041600.6-553201 894 355 X 18.2 18.2 2 * CXOMPJ041600.7-553200 86 73 10
85 041729.8-555718 917 133 X 18.3 19.0 * * 1RXH J041730.3-555717 88 85 11
69 041508.4-553317 968 327 X 17.5 18.6 * * CXOMPJ041508.4-553315 80 69 34
94 041807.8-554924 1002 99 X 19.0 19.3 * * 1RXH J041808.5-554925 97 94 18
91 041627.4-552910 1071 8 X 19.6 20.6 * * CXOMPJ041627.5-552909 91 91 13
86 041641.6-552855 1108 14 X 20.8 21.7 * * CXOMPJ041641.5-552854 91 86 12
86 041603.2-552143 1509 358 X 18.0 18.3 * * 2RXP J041604.5-552141 91 86 23
93 041341.4-553249 1515 304 X 19.0 19.3 * * 2RXP J041341.7-553248 96 93 41
87 041345.8-553102 1548 308 X 19.0 19.4 * * 2RXP J041346.3-553104 91 87 38
46 041907.2-555358 1550 106 X 19.4 20.7 * * 2RXP J041907.5-555354 59 46 70
96 041500.6-561308 1682 200 R 20.3 20.8 * * SUMSSJ041500.5-561308 97 96 62

Columns of table:

  1. label -- identifier for each optical object displayed on the chart(s) above.
  2. coordinates J2000 -- position on the sky of this optical object, pattern is hhmmss.s±ddmmss, which gives 1 arcsecond precision.
  3. dist asec -- distance (offset in arcseconds) of this object from the central galaxy, i.e. the center of the chart.
  4. angle E-N -- direction from the central galaxy to this object, N thru E, ie. 0 is up, 90 is left, 180 is down, 270 is rightwards.
  5. type -- short description of this object: Q=quasar, B=Bl lac, A=AGN, G=galaxy, S=star, X=X-ray source, R=radio source, 2=double radio lobes.
  6. R mag, B mag -- brightness of this object in red and blue colors respectively, 0=not seen in this color
  7. com -- comment on object: p=blue is POSSI-O violet, (no p)=blue is Bj green or similar, i=red is i, u=blue is u, v=variablility nominally detected, m=proper motion nominally detected, ?=inferred object, calculated from combining APM and USNO-A optical catalogs.
  8. R psf, B psf -- appearance of object in red and blue colors respectively, *=stellar, 1=fuzzy, 2=extended, n=no psf, x=not seen in this color.
  9. Name -- name of this object from the literature, or IAU name from X-ray/radio catalog.
  10. conf assoc -- confidence that this optical object is the true source of the X-ray or radio detection that we list with it. This is the published figure from the QORG catalog, except for XMM or CXOMP X-ray objects which are calculated using the identical technique as used in QORG.
  11. QSO pct -- confidence that this optical object is a QSO specifically, calculated as in (10) above.
  12. z -- the redshift of this object, from the literature. NBCKDE redshifts are photometric only, and rounded to tenths, e.g. 1.700.
  13. flux -- if a radio source, in mJy; if an X-ray source, in counts per hour as listed in ROSAT/CXOMP, XMM normalised to ROSAT (div by 3.5).

 

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