[
  {
    "slug": "mrk42",
    "name": "Mrk 42",
    "aliases": "CGCG 243-024 · 2MIG 1646",
    "ra_sex": "11:53:41.76",
    "dec_sex": "+46:12:42.6",
    "ra_deg": 178.424,
    "dec_deg": 46.211833,
    "instrument": "IAC80 / CAMELOT2",
    "filter": "V",
    "aperture": "5 px = 1.61″",
    "field_fov_deg": 0.2,
    "observing_summary": "Three consecutive nights in May 2025; 60–70 s exposures; ≈4 h per night.",
    "reference_note": "The star closest in brightness to the target was used as the statistical reference; the source text does not assign a fixed star number to that role.",
    "validation_note": "Comparison candidates were selected for brightness and isolation, checked against APASS DR9 and Gaia DR3, and known/suspected variables were excluded using VSX.",
    "paper_title": "The 2MIG isolated AGNs. 3. Optical–IR variability and dust reverberation in the NLSy1 galaxies Mrk 42 and Mrk 493",
    "paper_short": "Izviekova et al. (2026)",
    "paper_url": "https://arxiv.org/abs/2605.06517",
    "status": "Published/preprint",
    "stars": [
      {
        "id": 1,
        "ra": 178.397736,
        "dec": 46.157415,
        "V": 16.090999603271484,
        "eV": 0.017000000923871994,
        "catalog": "APASS DR9",
        "apass_ra": 178.397736,
        "apass_dec": 46.157415,
        "apass_match_sep_arcsec": 0.0,
        "apass_field": "20122207",
        "apass_nobs": 3,
        "apass_mobs": 11,
        "apass_query_url": "https://vizier.cds.unistra.fr/viz-bin/VizieR/VizieR-6?-c=178.397736%2046.157415%2Ceq%3DJ2000%2Crs%3D3&-source=II%2F336%2Fapass9",
        "B": 16.891000747680664,
        "eB": 0.09399999678134918,
        "eB_raw": 0.09399999678134918,
        "eB_flag": null,
        "eV_raw": 0.017000000923871994,
        "eV_flag": null,
        "g": 16.437999725341797,
        "eg": 0.014000000432133675,
        "eg_raw": 0.014000000432133675,
        "eg_flag": null,
        "r": 15.791999816894531,
        "er": 0.02500000037252903,
        "er_raw": 0.02500000037252903,
        "er_flag": null,
        "i": 15.409000396728516,
        "ei": 0.1809999942779541,
        "ei_raw": 0.1809999942779541,
        "ei_flag": null
      },
      {
        "id": 2,
        "ra": 178.446143,
        "dec": 46.272907,
        "V": 14.53600025177002,
        "eV": 0.03799999877810478,
        "catalog": "APASS DR9",
        "apass_ra": 178.446143,
        "apass_dec": 46.272907,
        "apass_match_sep_arcsec": 0.0,
        "apass_field": "20152020",
        "apass_nobs": 5,
        "apass_mobs": 23,
        "apass_query_url": "https://vizier.cds.unistra.fr/viz-bin/VizieR/VizieR-6?-c=178.446143%2046.272907%2Ceq%3DJ2000%2Crs%3D3&-source=II%2F336%2Fapass9",
        "B": 15.006999969482422,
        "eB": 0.11999999731779099,
        "eB_raw": 0.11999999731779099,
        "eB_flag": null,
        "eV_raw": 0.03799999877810478,
        "eV_flag": null,
        "g": 14.645999908447266,
        "eg": 0.1860000044107437,
        "eg_raw": 0.1860000044107437,
        "eg_flag": null,
        "r": 14.369999885559082,
        "er": 0.03500000014901161,
        "er_raw": 0.03500000014901161,
        "er_flag": null,
        "i": 14.24899959564209,
        "ei": 0.07500000298023224,
        "ei_raw": 0.07500000298023224,
        "ei_flag": null
      },
      {
        "id": 3,
        "ra": 178.476516,
        "dec": 46.265684,
        "V": 14.543000221252441,
        "eV": 0.04800000041723251,
        "catalog": "APASS DR9",
        "apass_ra": 178.476516,
        "apass_dec": 46.265684,
        "apass_match_sep_arcsec": 0.0,
        "apass_field": "20152020",
        "apass_nobs": 5,
        "apass_mobs": 22,
        "apass_query_url": "https://vizier.cds.unistra.fr/viz-bin/VizieR/VizieR-6?-c=178.476516%2046.265684%2Ceq%3DJ2000%2Crs%3D3&-source=II%2F336%2Fapass9",
        "B": 15.142999649047852,
        "eB": 0.17000000178813934,
        "eB_raw": 0.17000000178813934,
        "eB_flag": null,
        "eV_raw": 0.04800000041723251,
        "eV_flag": null,
        "g": 14.74899959564209,
        "eg": 0.18299999833106995,
        "eg_raw": 0.18299999833106995,
        "eg_flag": null,
        "r": 14.326000213623047,
        "er": 0.07500000298023224,
        "er_raw": 0.07500000298023224,
        "er_flag": null,
        "i": 14.17199993133545,
        "ei": 0.06300000101327896,
        "ei_raw": 0.06300000101327896,
        "ei_flag": null
      },
      {
        "id": 4,
        "ra": 178.34286,
        "dec": 46.25255,
        "V": 13.793000221252441,
        "eV": 0.05000000074505806,
        "catalog": "APASS DR9",
        "apass_ra": 178.34286,
        "apass_dec": 46.25255,
        "apass_match_sep_arcsec": 0.0,
        "apass_field": "20152020",
        "apass_nobs": 5,
        "apass_mobs": 25,
        "apass_query_url": "https://vizier.cds.unistra.fr/viz-bin/VizieR/VizieR-6?-c=178.342860%2046.252550%2Ceq%3DJ2000%2Crs%3D3&-source=II%2F336%2Fapass9",
        "B": 14.607999801635742,
        "eB": 0.14000000059604645,
        "eB_raw": 0.14000000059604645,
        "eB_flag": null,
        "eV_raw": 0.05000000074505806,
        "eV_flag": null,
        "g": 14.104000091552734,
        "eg": 0.1889999955892563,
        "eg_raw": 0.1889999955892563,
        "eg_flag": null,
        "r": 13.515000343322754,
        "er": 0.0430000014603138,
        "er_raw": 0.0430000014603138,
        "er_flag": null,
        "i": 13.255999565124512,
        "ei": 0.06300000101327896,
        "ei_raw": 0.06300000101327896,
        "ei_flag": null
      }
    ],
    "nights": [
      {
        "night": "2025-05-20/21",
        "exp": "60 s",
        "duration": "4.25 h",
        "frames": "≈254"
      },
      {
        "night": "2025-05-21/22",
        "exp": "60 s",
        "duration": "3.97 h",
        "frames": "≈238"
      },
      {
        "night": "2025-05-22/23",
        "exp": "70 s",
        "duration": "4.04 h",
        "frames": "≈207"
      }
    ],
    "photometry_catalog": "APASS DR9",
    "photometry_catalog_vizier": "https://vizier.cds.unistra.fr/viz-bin/VizieR?-source=II%2F336%2Fapass9",
    "photometry_catalog_project": "https://www.aavso.org/apass",
    "photometry_system_note": "Johnson B,V are Vega magnitudes; Sloan g',r',i' are AB magnitudes. The cited IAC80 analyses used V; the additional bands are supplied for reuse."
  },
  {
    "slug": "ic5287",
    "name": "IC 5287",
    "aliases": "2MIG 3128",
    "ra_sex": "23:09:20.28",
    "dec_sex": "+00:45:23.0",
    "ra_deg": 347.3345,
    "dec_deg": 0.756389,
    "instrument": "IAC80 / CAMELOT2",
    "filter": "V",
    "aperture": "9 px = 2.90″",
    "field_fov_deg": 0.2,
    "observing_summary": "One 3.0 h sequence on 2025 June 30/July 1; 90 s exposures; 101 frames retained.",
    "reference_note": "Comparison star 1 was adopted as the primary statistical reference. The variability classification was unchanged when stars 2 or 3 were used instead.",
    "validation_note": "Three local comparison stars from APASS DR9; leave-one-out stability tests were applied. The adopted aperture minimized seeing dependence.",
    "paper_title": "The 2MIG isolated AGNs – 5. Hot-dust reverberation and spectroscopic constraints on BLR–dust scales in IC 5287 and Mrk 845",
    "paper_short": "Izviekova et al. (2026, manuscript)",
    "paper_url": "",
    "status": "Manuscript",
    "stars": [
      {
        "id": 1,
        "ra": 347.296561,
        "dec": 0.724682,
        "V": 15.319000244140625,
        "eV": 0.07900000363588333,
        "catalog": "APASS DR9",
        "apass_ra": 347.296561,
        "apass_dec": 0.724682,
        "apass_match_sep_arcsec": 0.0,
        "apass_field": "20140131",
        "apass_nobs": 11,
        "apass_mobs": 52,
        "apass_query_url": "https://vizier.cds.unistra.fr/viz-bin/VizieR/VizieR-6?-c=347.296561%200.724682%2Ceq%3DJ2000%2Crs%3D3&-source=II%2F336%2Fapass9",
        "B": 16.260000228881836,
        "eB": 0.0430000014603138,
        "eB_raw": 0.0430000014603138,
        "eB_flag": null,
        "eV_raw": 0.07900000363588333,
        "eV_flag": null,
        "g": 15.706999778747559,
        "eg": 0.0430000014603138,
        "eg_raw": 0.0430000014603138,
        "eg_flag": null,
        "r": 15.031999588012695,
        "er": 0.08299999684095383,
        "er_raw": 0.08299999684095383,
        "er_flag": null,
        "i": 14.744999885559082,
        "ei": 0.1289999932050705,
        "ei_raw": 0.1289999932050705,
        "ei_flag": null
      },
      {
        "id": 2,
        "ra": 347.278866,
        "dec": 0.755341,
        "V": 15.371000289916992,
        "eV": 0.07100000232458115,
        "catalog": "APASS DR9",
        "apass_ra": 347.278866,
        "apass_dec": 0.755341,
        "apass_match_sep_arcsec": 0.0,
        "apass_field": "20140131",
        "apass_nobs": 11,
        "apass_mobs": 48,
        "apass_query_url": "https://vizier.cds.unistra.fr/viz-bin/VizieR/VizieR-6?-c=347.278866%200.755341%2Ceq%3DJ2000%2Crs%3D3&-source=II%2F336%2Fapass9",
        "B": 16.55699920654297,
        "eB": 0.08900000154972076,
        "eB_raw": 0.08900000154972076,
        "eB_flag": null,
        "eV_raw": 0.07100000232458115,
        "eV_flag": null,
        "g": 15.940999984741211,
        "eg": 0.057999998331069946,
        "eg_raw": 0.057999998331069946,
        "eg_flag": null,
        "r": 14.883000373840332,
        "er": 0.06800000369548798,
        "er_raw": 0.06800000369548798,
        "er_flag": null,
        "i": 14.508000373840332,
        "ei": 0.12999999523162842,
        "ei_raw": 0.12999999523162842,
        "ei_flag": null
      },
      {
        "id": 3,
        "ra": 347.266787,
        "dec": 0.734029,
        "V": 15.006999969482422,
        "eV": 0.050999999046325684,
        "catalog": "APASS DR9",
        "apass_ra": 347.266787,
        "apass_dec": 0.734029,
        "apass_match_sep_arcsec": 0.0,
        "apass_field": "20140131",
        "apass_nobs": 11,
        "apass_mobs": 55,
        "apass_query_url": "https://vizier.cds.unistra.fr/viz-bin/VizieR/VizieR-6?-c=347.266787%200.734029%2Ceq%3DJ2000%2Crs%3D3&-source=II%2F336%2Fapass9",
        "B": 15.833000183105469,
        "eB": 0.061000000685453415,
        "eB_raw": 0.061000000685453415,
        "eB_flag": null,
        "eV_raw": 0.050999999046325684,
        "eV_flag": null,
        "g": 15.36299991607666,
        "eg": 0.01899999938905239,
        "eg_raw": 0.01899999938905239,
        "eg_flag": null,
        "r": 14.75,
        "er": 0.08500000089406967,
        "er_raw": 0.08500000089406967,
        "er_flag": null,
        "i": 14.545999526977539,
        "ei": 0.14800000190734863,
        "ei_raw": 0.14800000190734863,
        "ei_flag": null
      }
    ],
    "nights": [
      {
        "night": "2025-06-30/07-01",
        "exp": "90 s",
        "duration": "3.00 h",
        "frames": "101 used / 102 acquired"
      }
    ],
    "photometry_catalog": "APASS DR9",
    "photometry_catalog_vizier": "https://vizier.cds.unistra.fr/viz-bin/VizieR?-source=II%2F336%2Fapass9",
    "photometry_catalog_project": "https://www.aavso.org/apass",
    "photometry_system_note": "Johnson B,V are Vega magnitudes; Sloan g',r',i' are AB magnitudes. The cited IAC80 analyses used V; the additional bands are supplied for reuse."
  },
  {
    "slug": "mrk845",
    "name": "Mrk 845",
    "aliases": "MCG+09-25-022 · 2MIG 2067",
    "ra_sex": "15:07:45.04",
    "dec_sex": "+51:27:09.6",
    "ra_deg": 226.937667,
    "dec_deg": 51.452667,
    "instrument": "IAC80 / CAMELOT2",
    "filter": "V",
    "aperture": "9 px = 2.90″",
    "field_fov_deg": 0.2,
    "observing_summary": "Three consecutive nights in May 2025; ≈4 h per night; 112–125 frames retained after quality control.",
    "reference_note": "Primary statistical references: star 3 on 2025 May 20; star 4 on May 21 and 22.",
    "validation_note": "Four local APASS DR9 comparison stars; leave-one-out stability checks were applied. A common 9-pixel aperture was used on all three nights.",
    "paper_title": "The 2MIG isolated AGNs – 5. Hot-dust reverberation and spectroscopic constraints on BLR–dust scales in IC 5287 and Mrk 845",
    "paper_short": "Izviekova et al. (2026, manuscript)",
    "paper_url": "",
    "status": "Manuscript",
    "stars": [
      {
        "id": 1,
        "ra": 226.873709,
        "dec": 51.488488,
        "V": 16.417999267578125,
        "eV": 0.04699999839067459,
        "catalog": "APASS DR9",
        "apass_ra": 226.873709,
        "apass_dec": 51.488488,
        "apass_match_sep_arcsec": 0.0,
        "apass_field": "20122303",
        "apass_nobs": 3,
        "apass_mobs": 7,
        "apass_query_url": "https://vizier.cds.unistra.fr/viz-bin/VizieR/VizieR-6?-c=226.873709%2051.488488%2Ceq%3DJ2000%2Crs%3D3&-source=II%2F336%2Fapass9",
        "B": 17.659000396728516,
        "eB": 0.026000000536441803,
        "eB_raw": 0.026000000536441803,
        "eB_flag": null,
        "eV_raw": 0.04699999839067459,
        "eV_flag": null,
        "g": 17.01300048828125,
        "eg": null,
        "eg_raw": 0.0,
        "eg_flag": null,
        "r": 16.013999938964844,
        "er": null,
        "er_raw": 0.0,
        "er_flag": null,
        "i": 15.869000434875488,
        "ei": null,
        "ei_raw": 0.0,
        "ei_flag": null
      },
      {
        "id": 2,
        "ra": 226.970757,
        "dec": 51.447272,
        "V": 16.118000030517578,
        "eV": 0.06499999761581421,
        "catalog": "APASS DR9",
        "apass_ra": 226.970757,
        "apass_dec": 51.447272,
        "apass_match_sep_arcsec": 0.0,
        "apass_field": "20122303",
        "apass_nobs": 4,
        "apass_mobs": 13,
        "apass_query_url": "https://vizier.cds.unistra.fr/viz-bin/VizieR/VizieR-6?-c=226.970757%2051.447272%2Ceq%3DJ2000%2Crs%3D3&-source=II%2F336%2Fapass9",
        "B": 16.840999603271484,
        "eB": 0.04699999839067459,
        "eB_raw": 0.04699999839067459,
        "eB_flag": null,
        "eV_raw": 0.06499999761581421,
        "eV_flag": null,
        "g": 16.44099998474121,
        "eg": 0.08900000154972076,
        "eg_raw": 0.08900000154972076,
        "eg_flag": null,
        "r": 15.819999694824219,
        "er": 0.07699999958276749,
        "er_raw": 0.07699999958276749,
        "er_flag": null,
        "i": 15.60099983215332,
        "ei": null,
        "ei_raw": 0.0,
        "ei_flag": null
      },
      {
        "id": 3,
        "ra": 227.02507,
        "dec": 51.447829,
        "V": 13.64900016784668,
        "eV": 0.05999999865889549,
        "catalog": "APASS DR9",
        "apass_ra": 227.02507,
        "apass_dec": 51.447829,
        "apass_match_sep_arcsec": 0.0,
        "apass_field": "20122303",
        "apass_nobs": 6,
        "apass_mobs": 30,
        "apass_query_url": "https://vizier.cds.unistra.fr/viz-bin/VizieR/VizieR-6?-c=227.025070%2051.447829%2Ceq%3DJ2000%2Crs%3D3&-source=II%2F336%2Fapass9",
        "B": 14.402000427246094,
        "eB": 0.06199999898672104,
        "eB_raw": 0.06199999898672104,
        "eB_flag": null,
        "eV_raw": 0.05999999865889549,
        "eV_flag": null,
        "g": 13.991000175476074,
        "eg": 0.07100000232458115,
        "eg_raw": 0.07100000232458115,
        "eg_flag": null,
        "r": 13.444999694824219,
        "er": 0.06300000101327896,
        "er_raw": 0.06300000101327896,
        "er_flag": null,
        "i": 13.314000129699707,
        "ei": 0.07800000160932541,
        "ei_raw": 0.07800000160932541,
        "ei_flag": null
      },
      {
        "id": 4,
        "ra": 227.03936,
        "dec": 51.484968,
        "V": 16.621000289916992,
        "eV": null,
        "catalog": "APASS DR9",
        "apass_ra": 227.03936,
        "apass_dec": 51.484968,
        "apass_match_sep_arcsec": 0.0,
        "apass_field": "20122303",
        "apass_nobs": 2,
        "apass_mobs": 3,
        "apass_query_url": "https://vizier.cds.unistra.fr/viz-bin/VizieR/VizieR-6?-c=227.039360%2051.484968%2Ceq%3DJ2000%2Crs%3D3&-source=II%2F336%2Fapass9",
        "B": 17.39699935913086,
        "eB": 0.0949999988079071,
        "eB_raw": 0.0949999988079071,
        "eB_flag": null,
        "eV_raw": 0.0,
        "eV_flag": null,
        "g": 16.986000061035156,
        "eg": null,
        "eg_raw": 0.0,
        "eg_flag": null,
        "r": null,
        "er": null,
        "er_raw": null,
        "er_flag": null,
        "i": null,
        "ei": null,
        "ei_raw": null,
        "ei_flag": null
      }
    ],
    "nights": [
      {
        "night": "2025-05-20",
        "exp": "60 s",
        "duration": "4.25 h",
        "frames": "125 used / ≈234 acquired"
      },
      {
        "night": "2025-05-21",
        "exp": "60 s",
        "duration": "3.97 h",
        "frames": "116 used / ≈238 acquired"
      },
      {
        "night": "2025-05-22",
        "exp": "70 s",
        "duration": "4.04 h",
        "frames": "112 used / ≈207 acquired"
      }
    ],
    "extra_note": "APASS DR9 lists σV = 0.000 mag for star 4. This is not interpreted as a physically zero photometric uncertainty and is therefore shown here as unavailable.",
    "photometry_catalog": "APASS DR9",
    "photometry_catalog_vizier": "https://vizier.cds.unistra.fr/viz-bin/VizieR?-source=II%2F336%2Fapass9",
    "photometry_catalog_project": "https://www.aavso.org/apass",
    "photometry_system_note": "Johnson B,V are Vega magnitudes; Sloan g',r',i' are AB magnitudes. The cited IAC80 analyses used V; the additional bands are supplied for reuse."
  }
]