Sanduleak -69° 202
type: Thing
alternate name: SK-69 202
alternate name: GSC 09162-00821
description: supernova in the constellation Dorado
additional property: PropertyValue
  property ID: P18
  value: HST SN 1987A 20th anniversary.jpg
additional property: PropertyValue
  property ID: P18
  value: The star that exploded on February 23 in the Large Magellanic Cloud (eso8705b).jpg
additional property: PropertyValue
  property ID: P31
  value: blue supergiant
additional property: PropertyValue
  property ID: P59
  value: Dorado
additional property: PropertyValue
  property ID: P215
  value: B2/3Ipec?
additional property: PropertyValue
  property ID: P373
  value: Sanduleak -69 202
additional property: PropertyValue
  property ID: P528
  value: CPD-69 402
additional property: PropertyValue
  property ID: P528
  value: GSC 09162-00821
additional property: PropertyValue
  property ID: P528
  value: UBV M 51417
additional property: PropertyValue
  property ID: P646
  value: /m/0h66p8
additional property: PropertyValue
  property ID: P881
  value: luminous blue variable
additional property: PropertyValue
  property ID: P1215
  value: +11.1
additional property: PropertyValue
  property ID: P1215
  value: +17.7107
additional property: PropertyValue
  property ID: P1215
  value: +12.28
additional property: PropertyValue
  property ID: P6257
  value: +83.86658293147251
additional property: PropertyValue
  property ID: P6258
  value: -69.26960046352556
additional property: PropertyValue
  property ID: P6259
  value: J2000.0
confidence:
  popularity graph score:
    score: 0.015
    score pct: 1
    tier: established
    components:
      sitelinks: 17
      sitelinks norm: 0.04
      unique citations: 5
      unique citations norm: 0.002
      monthly pageviews: 128
      monthly pageviews norm: 0.0
  sitelinks: 17
  unique citations: 5
  monthly pageviews: 128
  yearly pageviews: 263
  pageview trend:
    m: 2026-08
    v: 128
  pageview trend:
    m: 2026-07
    v: 29
  pageview trend:
    m: 2026-06
    v: 22
  pageview trend:
    m: 2026-05
    v: 2
  pageview trend:
    m: 2026-05
    v: 14
  pageview trend:
    m: 2026-05
    v: 4
  pageview trend:
    m: 2026-05
    v: 6
  pageview trend:
    m: 2026-04
    v: 4
  pageview trend:
    m: 2026-04
    v: 51
  pageview trend:
    m: 2026-04
    v: 3
  popularity:
    sitelinks: 17
    max: 423
    pct: 4.0
  tier: established
claims:
  P18:
    value: HST SN 1987A 20th anniversary.jpg
    source count: 1
    confidence: 0.2
  P18:
    value: The star that exploded on February 23 in the Large Magellanic Cloud (eso8705b).jpg
    source count: 0
    confidence: 0.0
  P31:
    value: Q1048372
    source count: 1
    confidence: 0.2
    value label: blue supergiant
  P59:
    value: Q8837
    source count: 1
    confidence: 0.2
    value label: Dorado
  P215:
    value: B2/3Ipec?
    source count: 1
    confidence: 0.2
  P373:
    value: Sanduleak -69 202
    source count: 0
    confidence: 0.0
  P528:
    value: CPD-69 402
    source count: 1
    confidence: 0.2
  P528:
    value: GSC 09162-00821
    source count: 1
    confidence: 0.2
  P528:
    value: UBV M 51417
    source count: 1
    confidence: 0.2
  P528:
    value: Gaia DR2 4657668080057142656
    source count: 1
    confidence: 0.2
  P646:
    value: /m/0h66p8
    source count: 1
    confidence: 0.2
  P881:
    value: Q742741
    source count: 1
    confidence: 0.2
    value label: luminous blue variable
  P1215:
    value:
      amount: +11.1
    source count: 1
    confidence: 0.2
  P1215:
    value:
      amount: +17.7107
    source count: 1
    confidence: 0.2
  P1215:
    value:
      amount: +12.28
    source count: 1
    confidence: 0.2
  P1215:
    value:
      amount: +12.24
    source count: 1
    confidence: 0.2
  P6257:
    value:
      unit: Q28390
      amount: +83.86658293147251
    source count: 1
    confidence: 0.2
  P6258:
    value:
      unit: Q28390
      amount: -69.26960046352556
    source count: 1
    confidence: 0.2
  P6259:
    value: Q1264450
    source count: 1
    confidence: 0.2
    value label: J2000.0
citations:
  source: Freebase Data Dumps
  stated in qid: Q15241312
  pub year: 2013
citations:
  source: SIMBAD
  stated in qid: Q654724

source: The spectrograms of Sanduleak -69 202, precursor to supernova 1987A in the Large Magellanic Cloud
stated in qid: Q66649143

source: The USNO-B Catalog
stated in qid: Q55879286

source: Gaia Data Release 2
stated in qid: Q51905050

wikidata id: Q378188
domain: blue_supergiant
level: standard
html url: https://4ort.xyz/entity/sanduleak-69-202
markdown url: https://4ort.xyz/entity/sanduleak-69-202.md
facts url summary: https://4ort.xyz/entity/sanduleak-69-202/facts.json
facts url standard: https://4ort.xyz/entity/sanduleak-69-202/facts.json
facts url full: https://4ort.xyz/entity/sanduleak-69-202/facts.json
data source: Wikidata (CC0 / public domain)
license: https://creativecommons.org/publicdomain/zero/1.0/
api version: v1
served at: 2026-08-24T03:57:45.850498Z
entity updated at: 2026-05-03T21:19:00.258443+00:00Z
entity created at: 2026-04-10T23:41:30.516071+00:00Z